Emerson 66 Series Direct-Operated Regulators and Vacuum Service Equipment Instruction Manual
Contents
1. 0 2 to 0 8 0 74 to 2 1E937227012 Unpainted 11 06 281 0 112 2 85 regulators 2 to 6 5 to 15 1K418127012 11 50 292 0 162 4 12 or breakers 0 to 1 5 0to4 10823827012 11 56 294 0 135 3 43 1 1 psig 0 07 bar minimum differential pressure required with this range 2 Heavy head construction required 3 Extra heavy head construction required Table 2 Flow Coefficients OUTLET REGULATING C REGULATING C WIDE OPEN C WIDE OPEN C PRESSURE DROOP RANGE PSIG bar 2 inch 3 inch 4 inch 2 inch 3 inch 4 inch 2 inch 3 inch 4 inch 2 inch 3 inch 4 inch C PSIG bar DN 50 DN 80 DN 100 DN 50 DN 80 DN100 DN 50 DN 80 DN 100 DN 50 DN 80 DN 100 0 75 to 1 5 0 2 0 01 765 1865 3330 21 9 53 3 95 1 0 05 to 0 10 0 3 0 02 1150 2800 5000 32 9 80 143 1to2 0 3 0 02 825 1650 3150 23 6 47 1 90 0 07 to 0 14 0 4 0 03 1100 2200 4200 31 4 62 9 120 1 5 03 0 4 0 03 665 1165 2500 19 333 714 1260 3400 5250 36 97 1 150 35 0 10 to 0 21 0 6 0 04 1000 1750 3750 28 6 50 107 3105 0 6 0 04 540 725 15 4 20 7 0 21 to 0 34 0 8 0 06 720 970 20 6 27 7 d 1 0 0 07 900 1210 25 7 34 6 Table 3 IEC Sizing Coefficients BODY SIZE INCH DN X 2 50 0 35 3 80 0 775 0 34 0 89 4 100 0 30 BYPASS 22222222 135 VENT LINE wo To 4 4 T VENT Hu BLOCK2. Spring Retainer Type 66ZZ only Brass Set Screw for Type 66 with external control line and adjustable travel stops Steel 2 required Hex Nut for Type 66 with external control line and adjustable travel stops Zinc plated steel 2 required Adjusting Screw Cap for Type 66 with external control line and adjusting travel stops Brass 2 required Adjusting Cap Gasket for Type 66 with external control line and adjusting travel stops Composition 2 required Upper Travel Stop for Type 66 with external control line and adjusting travel stops Brass 2 inch DN 50 body 4 inch DN 100 body Lower Travel Stop for Type 66 with external control line and adjusting travel stops Brass 2 inch DN 50 body 4 inch DN 100 body Recommended Spare Parts Part Number 1D843604082 1D843704082 1D843804082 1H723125072 1F990428982 1N720799012 1D891527022 1D891627022 1D891727022 1E869414012 1A279128982 1 352424122 1J944114012 14944004022 1 930114012 1U965414012 1N930214012 1U965514012 Key 50 51 52 53 54 57 66 68 69 70 71 Types 66 664 66277 Description Lock Washer for Type 66 with external control line and adjusting travel stops Steel 2 required 2 inch DN 50 body 4 inch DN 100 body Plug Types 66 and 66Z Brass 2 and 3 inch DN 50 and 80 bodies 4 inch DN 100 body Stainless steel 2 and 3 inch DN 50 and 80 bodies 4 inch DN 100 body
3. Pressure Ranges 2 inch DN 50 Body OUTLET CONTROL PRESSURE RANGE CONTROL SPRING INFORMATION CONSTRUCTION Inches w c Unless 2 inch DN 50 Body Otherwise mbar Free Length Wire Diameter Designated Part Number Color Code inches m Inches mm 4 to 11 10 to 27 0B019727052 Purple 6 00 152 0 148 3 76 8 to 280 20 to 70 1E611427022 None 6 00 152 0 200 5 08 2105 5 to 12 1D892527022 Brown 6 12 155 0 109 2 77 4108 10 to 20 1D892627022 Red 7 53 191 0 112 2 85 7 to 12 17 to 30 1D892727012 Black 7 88 200 0 130 3 30 Type 66 10 to 17 25 to 42 1D892827032 Orange stripe 7 75 197 0 148 3 76 14 to 28 35 to 70 1D892927032 Unpainted 7 53 191 0 162 4 12 0 75 to 1 5 psig 0 05 to 0 10 bar 107657270320 6 09 155 0 207 5 26 1 to 2 psig 0 07 to 0 14 bar 107658270320 Unpainted 6 00 152 0 225 5 72 1 5 to 3 psig 0 10 to 0 21 bar 109626270320 6 25 159 0 262 6 66 3 to 5 psig 0 21 to 0 34 bar 1 5064271420 6 31 160 0 283 7 19 662 1t02 2105 1D892527022 Brown 6 12 155 0 109 2 77 Type 66ZZ 0 25 to 0 25 0 62 to 0 62 1E991427012 5 62 143 0 085 2 16 66 Series 0 to 2 0 to 5 1J196527012 Unpainted 5 62 143 0 102 2 59 vacuum regulators 0 2 to 0 8 0 74 to 2 1H387327012 5 62 143 0 095 2 41 or breakers 2 to 6 5 to 15 1N152427012 5 62 143 0 112 2 85 1 1 psig 0 07 bar minimum differential pressure required with this range 2 Heavy head constru
4. Steel NACE Steel 4 inch DN 100 body CL125 FF flanged Cast iron CL150 RF flanged Steel NACE Steel Upper Diaphragm Casing standard and NACE 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Lower Diaphragm Casing Standard 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body With external control line 2 inch DN 50 body 2 inch DN 50 body NACE 3 inch DN 80 body 3 inch DN 80 body NACE 4 inch DN 100 body 4 inch DN 100 body NACE R66X0000022 R66X0000032 R66X0000042 2D474119012 2K928522012 2K9285X0012 3E713919012 2J838322012 2J8383X0042 24 4617 012 24 4617 022 2 655122012 3D474319012 2L291322012 2L2913X0062 2D474519012 2L291422012 2L2914X0032 1D4792000A2 1D5391000A2 1D5395000A2 3D478728992 3D478928992 3D479128992 1F4421000A2 1F4421X0022 1F4419000A2 1F4419X0022 1F1319000A2 1F1319X0012 Types 66 664 and 66227 2 2 27 Nt AA OPTIONAL METAL SEAT N AWW ARE UTR ARN T TASSY PDLLA N SS SN SY x SS Ak ws M 2 e K LT amp GGG 2 22 mE S oN SANS T SOs Ll EN S e P NnS 22222222222 22112721021222 122222221 LU APPLY LUB UL I UD CJ8392 F NOT SHOWN e 8 8 69 0 Figure 6 Sof
5. body 4 inch DN 100 body 20 Cap Screw Zinc plated steel 2 inch DN 50 Cast iron body 12 required 2 inch DN 50 Steel body 12 required 2 inch DN 50 Steel body NACE 12 required 3 inch DN 80 body 16 required 3 inch DN 80 body NACE 16 required Recommended Spare Parts 14 Part Number 1E991614012 1E991714012 1E868914012 1D476702042 1D476802042 1D476902042 1H7370X0012 1J1981X0012 1H7275X0012 1D476702042 1D476802042 1D476902042 1D475725062 1D4757X0022 1D479325062 1D479325062 1D479425062 1D4794X0012 1D475725062 1D479325062 1D479425062 1D477626092 1D477726092 0X014744012 1D255304022 1D478404022 1D476404022 1D476504022 1D476604022 1C631224052 1C275224052 1C2752X0032 1D529824052 1D5298X0012 Key 20 21 22 23 25 26 27 28 29 30 31 34 Description Cap Screw Zinc plated steel continued 4 inch DN 100 body 16 required 4 inch DN 100 body NACE 16 required Cap Screw Zinc plated steel 2 inch DN 50 body 16 required 3 inch DN 80 body 20 required 4 inch DN 100 body 24 required Hex Nut Plated steel 2 inch DN 50 body 16 required 3 inch DN 80 body 20 required 4 inch DN 100 body 24 required Stop Nut 2 required Types 66 and 66Z Brass 2 and 3 inch DN 50 and 80 bodies 4 inch DN 100 body Stainless steel 2 and 3 inch DN 50 and 80 bodies 2 and 3 inch DN 50 and 80 bodies NACE 4 i
6. RF all 2 50 NPT or CL125 FF types CL150 FF regulators CL300 RF or breakers 3 4 80 100 CL125 FF CL150 RF Maximum Allowable Inlet Pressures Emergency Inlet Pressure Type 66 66Z 66ZZ or 66 Series Vacuum Breakers 25 psig 1 72 bar positive pressure 66 Series Vacuum Regulators 8 psig or 16 3 inches of mercury 0 55 bar differential vacuum Maximum Safe Pressure to Avoid Internal Parts Damage Type 66 10 psig 0 69 bar Type 66Z 5 psig 0 34 bar Type 66ZZ 2 psig 0 14 bar 66 Series Vacuum Regulators or Breakers No more than 1 psig 0 07 bar differential change from spring setting Maximum Operating Inlet Pressure Recommended for Good Performance Type 66 66Z or 66 Series Vacuum Breakers 5 psig 0 34 bar positive pressure Type 66ZZ 2 psig 0 14 bar 66 Series Vacuum Regulator 6 inches w c or 0 4 inch of mercury 15 mbar differential vacuum Maximum Allowable Outlet Pressures Emergency Outlet Casing Pressure Type 66 66Z or 66ZZ 8 psig 0 55 bar positive pressure 66 Series Vacuum Regulator 14 7 psi or 29 9 inches of mercury 1 01 bar differential vacuum 66 Series Vacuum Breakers 8 psi or 16 3 inches of mercury 0 55 bar differential vacuum Maximum Safe Pressure to Avoid Internal Parts Damage Type 66 66Z or 66ZZ 1 psig 0 07 bar differential above outlet pressure setting 66 Series Vacuum Regulator No more than 1 psig 0 07 bar differential change from spring setting Maximum Ope
7. casing key 3 Remove and inspect the balancing diaphragm key 14 and the gasket key 35 If no further maintenance is required proceed to steps 5 through 19 in the Assembly section For further disassembly proceed with step 10 10 Remove the lower balancing diaphragm plate 11 Key 15 and the lower stem gasket key 18 Remove the 5 16 inch 7 94 mm or smaller rod from the valve body pipe plug hole so that the valve plug and stem assembly can be moved Slide a seat ring puller T wrench or other suitable tool over the valve plug stem Engage the tool with the seat ring lugs If a suitable tool will not fit over the valve plug stem remove the valve body bottom flange key 7 using steps 1 and 2 of the Replacing Plug O Ring or Metal Seated Valve Plug section and remove the valve plug and stem assembly Unscrew the seat ring key 11 Assembly 1 Apply a good grade of piping compound to the seat ring key 11 threads Thread in the seat ring using the seat ring puller or a similar device Wipe off any excess piping compound If the valve plug and stem assembly was not removed proceed to step 3 If the valve plug and stem assembly was removed place the assembly in the valve body and insert the 5 16 inch 7 94 mm or smaller rod through the pipe plug and valve stem holes Use steps 5 through 7 of the Replacing Plug O Ring or Metal Seated Valve Plug section to secure the bottom flange key 7 10
8. with this range 2 Heavy head construction required 3 Extra heavy head construction required Types 66 662 and 66ZZ Table 1C Outlet Control Pressure Ranges 4 inch DN 100 Body OUTLET CONTROL PRESSURE RANGE CONTROL SPRING INFORMATION CONSTRUCTION Inches w c Unless 4 inch DN 100 Body Otherwise mbar Free Length Wire Diameter Designated Part Number Color Code Inches nm Inches mm 4 to 110 10 to 270 1D527527022 7 75 197 0 170 4 32 8 to 280 20 to 70 1D527627032 7 75 197 0 225 5 72 Unpainted 2105 5 to 12 1D892627022 7 53 191 0 112 2 85 4108 10 20 10893427022 7 75 197 0 135 3 43 7 to 12 17 to 30 1D893227032 Gray 7 50 191 0 156 3 96 Type 66 10 to 17 25 to 42 1D893527032 Unpainted 7 75 197 0 170 4 32 14 to 28 35 to 70 1D893627032 Unpainted 7 81 198 0 207 5 26 0 75 to 1 5 psig 0 05 to 0 10 bar 107712270320 Unpainted 7 75 197 0 262 6 66 1 to 2 psig 0 07 to 0 14 bar 107713270320 Unpainted 7 75 197 0 283 7 19 1 5 to 3 psig 0 10 to 0 21 bar 1 2045270320 Unpainted 7 53 191 0 331 8 41 3 to 5 psig 0 21 to 0 34 bar 662 1102 2105 1D892627022 Red 7 53 191 0 112 2 85 Type 66ZZ 0 25 to 0 25 0 62 to 0 62 1E937227012 11 06 281 0 112 2 85 66 Series 0 to 2 0 to 5 1J196727012 11 06 281 0 154 3 91
9. 11 12 13 14 15 Types 66 66Z and 66277 Place the lower stem gasket key 18 on the valve plug stem key 13 Place one balancing diaphragm plate key 15 on the valve plug stem key 13 with side facing the valve plug Align the gasket key 35 holes with the valve body pitot tube and cap screw holes and place the gasket on the valve body Align the balancing diaphragm key 14 pitot tube key 12 and cap screw holes with the holes in the valve body and place the balancing diaphragm on top of the gasket key 35 Align the lower diaphragm casing key 3 using the position recorded in the Disassembly section step 8 so that the pitot tube key 12 will be open Secure the casing key 3 with the washers key 34 and cap screws key 20 tightening the cap screws using an even crisscross pattern Place the balancing diaphragm plate key 15 on the balancing diaphragm so that the cupped side of the plate faces the main diaphragm key 5 Place the middle stem gasket key 18 on top of the balancing diaphragm plate Slide the diaphragm spacer key 16 onto the valve plug stem Place the upper stem gasket key 18 on the valve plug stem Position a diaphragm plate key 4 so that its side faces the balancing diaphragm Align the main diaphragm cap screw holes with the diaphragm casing cap screw holes and place the diaphragm key 5 on t
10. 2022 1E323533092 1E121433092 1423833092 10475117012 10475138072 1 737917012 1 737938072 1D475217012 1D475238072 1D475317012 1D475338072 1D475414012 1D475435072 1D475514012 1D475535072 1N445614012 1N445635072 1D475614012 1D475635072 1E322814012 1E322835072 1E121314012 1E121335072 13423714012 13423735072 13 Types 66 664 and 66227 Key Description 13 Valve Plug Stem continued For Type 6622 2 inch DN 50 body Brass 3 inch DN 80 body Brass 4 inch DN 100 body Brass 14 Balancing Diaphragm Types 66 and 66Z Nitrile NBR 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Fluorocarbon FKM 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Type 66ZZ Nitrile NBR 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body 15 Sealing Diaphragm Plate Zinc plated steel 2 required Types 66 and 66Z 2 inch DN 50 body 2 inch DN 50 body NACE 3 inch DN 80 body 3 inch DN 80 body NACE 4 inch DN 100 body 4 inch DN 100 body NACE Type 6622 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body annann 16 Diaphragm Spacer Zinc plated steel 2 and 3 inch DN 50 and 80 bodies 4 inch DN 100 body 17 Lower Spring Seat Types 66 and 66Z only Aluminum 18 Stem Gasket 3 required Composition 2 and 3 inch DN 50 and 80 bodies 4 inch DN 100 body 19 Bottom Flange Gasket Composition 2 inch DN 50 body 3 inch DN 80
11. Instruction Manual Form 1056 November 2008 Types 66 662 and 6622 Types 66 667 and 6622 Pressure Reducing Regulators Failure to follow these instructions or to properly install and maintain this equipment could result in an explosion and or fire causing property damage and personal injury or death Fisher regulators must be installed operated and maintained in accordance with federal state and local codes rules and regulations and Fisher instructions If the regulator vents gas or a leak develops in the system service to the unit may be required Failure to correct trouble could result in a hazardous condition Call a gas service person to service the unit Only a qualified person must install or service the regulator Introduction Scope of the Manual This instruction manual provides instructions for the installation adjustment and maintenance of the Types 66 66Z and 6622 pressure reducing regulators Parts ordering information is also provided Other 66 Series regulators and accessories are covered in other manuals Description The Type 66 self operated regulator Figure 1 maintains a reduced outlet pressure while satisfying the downstream flow demands The Types 66Z and 66ZZ self operated regulators Figures 8 and 9 also control a reduced outlet pressure however both have springs sensitive to negative pressures and can be used for vacuum regulation Each regulator type has a balancing dia
12. Type 66ZZ Brass Spring Case Coupling Type 66ZZ only Brass Spring Case Extension Type 66ZZ only Steel 2 inch DN 50 body Cast iron 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Ball Type 66ZZ only 10 required Stainless steel Retaining Ring Type 66ZZ only Steel Casing Gasket Fluorocarbon FKM 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Flow Arrow 18 8 Stainless steel Drive Screw 18 8 Stainless steel 2 required Tag NACE Stainless steel Tag Wire 304 Stainless steel Part Number 14339828992 14343628992 10781714012 10782114012 10781735232 10782135132 10781714012 1 869214012 1 869026012 1 869026012 13153126012 1 937326012 18793546202 10 3074 012 1U6985X0012 1U6986X0012 1U6989X0012 1V105938982 14368228982 19 6034 012 1U7581X0022 15 Types 66 664 and 6627 Industrial Regulators Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Shanghai China 201206 Tel 486 21 2892 9000 Europe Bologna Italy 40013 Tel 39 051 4190611 Middle East and Africa Dubai United Arab Emirates Tel 971 4811 8100 Natural Gas Technologies Emerson Process Management Regulator Technologies Inc USA Headquarters McKinney Texas 75069 1872 USA Tel 1 800 558 5853 Outside U S 1 972 548 3574 Asia Pacific Sin
13. VALVES OR BLOCK i VALVE OR PLUG COCKS PLUG COCK f N 1 SEL 06808 12 DIAMETER OF REGULATOR SWAGE A SIZE PIPE BEFORE SWAGE Figure 2 Type 66 Regulator in Pressure Reducing Application When decreased downstream demand raises the outlet pressure the higher pressure under the main diaphragm opposes the regulator main spring causing the valve plug and stem assembly to close the regulator seat ring and to supply less gas to the downstream system The Types 66Z and 66ZZ regulators are identical to the Type 66 regulator in operation but different in construction The 66Z regulator Figure 8 has a counter spring under the valve plug and disk assembly which counters the main spring force to allow settings below atmospheric pressures The Type 66ZZ regulator Figure 9 has a longer spring case where the main spring a low rate tension spring is stretched between the adjusting screw and the valve plug stem also providing below atmospheric settings and more sensitive pressure regulation than the Types 66 and 66Z regulators Installation Exposure of the regulator to physical damage and to corrosive material can cause improper operation or release of pressure Either condition may result in equipment damage or personal injury Properly install the regulator in a safe location Use of this regulator where service conditions can exceed Specifications limits may cause equipm
14. am Turning the adjusting screw away from the spring case increases the vacuum downstream Shutdown To remove the Type 66 66Z or 66ZZ regulator from positive pressure service first close the upstream and then the downstream block valve Close the needle valve in the external control line if one is used and vent the regulator body and lower diaphragm casing to release any trapped pressure To remove the Types 66Z and 66ZZ regulators from negative pressure service close the upstream and downstream block valves If a control line is used close the control line needle valve Vent the regulator body and lower diaphragm casing Maintenance Regulator parts are subject to normal wear and must be inspected and replaced as necessary Inspection and maintenance frequency depends upon the severity of service conditions To avoid personal injury or equipment damage from the sudden release of pressure isolate the reducing regulator from the pressure system and release all pressure from the regulator before performing maintenance operations Maintenance steps are in two general sections Replacing the Valve Plug O Ring or the Metal Seated Valve Plug is the first section Replacing the Main Spring the Main and Balancing Diaphragms and the Seat Ring is the second section Complete the necessary maintenance steps in the appropriate section inspecting and replacing parts as required These maintenance procedures refer to all three reg
15. ction required 3 Extra heavy head construction required Table 1B Outlet Control Pressure Ranges 3 inch DN 80 Body OUTLET CONTROL PRESSURE RANGE CONTROL SPRING INFORMATION CONSTRUCTION Inches w c Unless 3 inch DN 80 Body Otherwise mbar Free Length Wire Diameter Designated Part Number Color Code Inches mm Inches mm 4 to 11 10 to 270 1D479927032 6 00 152 0 162 4 12 8 to 280 20 to 70 1D527327022 6 00 152 0 207 5 26 Unpainted 2105 5 to 12 1D893027022 6 12 155 0 112 2 85 44108 10 20 10893127012 7 12 181 0 125 3 18 7 to 12 17 to 30 1D892827032 Orange Stripes 7 75 197 0 148 3 76 Type 66 10 to 17 25 to 42 1D893227032 Gray with White Stripe 7 50 191 0 156 3 96 14 to 28 35 to 70 1D893327032 Green 7 25 184 0 182 4 62 0 75 to 1 5 psig 0 05 to 0 10 bar 107658270320 6 00 152 0 225 5 72 1 to 2 psig 0 07 to 0 14 bar 109626270320 6 25 159 0 262 6 66 1 5 to 3 psig 0 10 to 0 21 bar 1 2044270320 6 38 162 0 306 7 77 3 to 5 psig 0 21 to 0 34 bar 1 5065271420 6 38 162 0 362 9 20 662 1t02 2105 1D893027022 Unpainted 6 12 155 0 112 2 85 ype 0 25 to 0 0 62 to 0 T 6622 0 25 to 0 25 0 62 to 0 62 1E991527012 8 62 219 0 100 2 54 0 2 0 to 5 1J196627012 5 62 143 0 114 2 90 9 2 to 6 5 to 15 1K384427012 5 62 143 0 120 3 05 or breakers 1 1 psig 0 07 bar minimum differential pressure required
16. de of the diaphragm casing flanges to aid in assembly Remove the upper diaphragm casing key 2 For the Type 6622 regulator unhook the spring Key 6 from the plug stem key 13 Note If the spring change is the only maintenance required for the Type 6622 regulator proceed to steps 16 through 19 in the Assembly section For further disassembly proceed to step 4 Remove the valve body pipe plug from the side of the body To keep the valve plug from twisting insert a 5 16 inch 7 94 mm or smaller rod through the pipe plug hole and the hold in the plug stem key 13 Remove the upper stop nut key 23 washer key 36 except for the Type 66ZZ regulator the lower spring seat key 17 except for the Type 66ZZ regulator and the upper diaphragm plate key 4 Remove and inspect the main diaphragm key 5 If no further maintenance is needed refer to steps 13 through 19 in the Assembly section for instructions Continue to step 7 if further disassembly is required Remove the lower diaphragm plate key 4 the top stem gasket key 18 the diaphragm spacer Key 16 the middle stem gasket key 18 and the upper balancing diaphragm plate key 15 To aid in assembly record the position of the lower diaphragm casing with respect to the valve body Unscrew and remove the cap screws Key 20 and washers key 34 that hold the lower diaphragm casing to the valve body key 1 Remove the lower diaphragm
17. ent damage or injury to personnel Be sure the regulator service conditions do not exceed Specifications limits Types 66 66Z and 6622 MA AIR CONTROL VALVE OPTIONAL PRESSURE Bh LOADING LINE 3 1 GAS I 15A9913 A A2496 1 pine BLOCK VALVE FURNACE MIXER Figure 3 Type 66Z Regulator in Gas Mixing Application VACUUM REGULATOR SET TO OPEN AT 1 0 INCH W C 2 50 mbar VACUUM TYPE 6622 REGULATOR SET TO OPEN AT 0 25 INCH W C 0 62 mbar VACUUM CONTROL LINES 0 TO 5 PSIG 0 to 0 34 bar AIR OR INERT GAS SUPPLY PRESSURE BJ9005 B A2494 2 Ls FILTERS gt TO EXHAUST HEADER AT GLOVE GLOVE 9 INCHES W C PORT PORT 22 mbar VACUUM HOOD PRESSURE TO BE KEPT AT 0 23 INCH W C 0 57 mbar VACUUM Figure 4 6622 Regulator Installation in Hood Control System Regulator operation within Specifications limits and applicable codes does not eliminate the possibility of damage from external sources or from debris in the line The regulator should be inspected for damage regularly and after any condition exceeding Specifications limits Complete downstream protection is needed with a Type 66 667 6622 regulator if the actual inlet pressure can exceed the regulator outlet pressure rating or the pressure ratings of any downstream equipment Provide adequate overpressure protection
18. ey Description 11 Seat Ring Standard Brass 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Stainless steel also NACE 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Metal to Metal Seats Brass 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Stainless steel 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body 12 Pitot Tube 2 inch DN 50 body With NPT connection and brass trim Copper With NPT connection and stainless steel trim 304 Stainless steel With flanged connection and brass trim Copper With flanged connection and stainless steel trim 304 Stainless steel 3 inch DN 80 body With brass trim Copper With stainless steel trim 304 Stainless steel 4 inch DN 100 body With brass trim Copper With stainless steel trim 304 Stainless steel 13 Valve Plug Stem For Types 66 and 662 standard and with external control line 2 inch DN 50 body Brass Stainless steel also NACE 3 inch DN 80 body Cast iron bodies only Brass Stainless steel 3 inch DN 80 body Steel bodies only Brass Stainless steel also NACE 4 inch DN 100 body Brass Stainless steel also NACE For Type 66 with metal to metal seating 2 inch DN 50 body Brass Stainless steel 3 inch DN 80 body Brass Stainless steel 4 inch DN 100 body Brass Stainless steel Part Number 1D783012022 1D783112022 1D783212022 1D783033092 1D783133092 1D783233092 1E323512022 1E121412022 1J42381
19. for the regulator and any downstream equipment Make sure that there is no damage to or foreign material in the regulator and that all tubing and piping is clean and unobstructed Install the regulator so that flow through it matches the arrow marked on the regulator body Some typical 66 Series regulator installations are shown in Figures 2 3 and 4 Types 66 664 and 6627 VALVE STEM VALVE SKIRT A6550 NLET PRESSURE ES OUTLET PRESSURE ATMOSPHERIC PRESSURE Figure 5 Standard Steel Body Operational Schematic Install the Types 66 66Z and 66ZZ regulators horizontally with the spring case vertically above the valve body Other orientations change the regulator Set point and controlled pressure range due to the weight of the internal parts If threaded connections are used apply a good grade of pipe compound to only the male pipeline threads If flanged connections are used use good bolting practices and suitable gaskets If continuous operation of the system is required during inspection and maintenance install a three valve bypass around the regulator If an upstream strainer is not provided for the entire unit an optional filter may be installed on the optional external control line to help protect the pressure sensing parts CONTROL SPRING DIAPHRAGM EXTERNAL CONTROL LINE Jl SEAT RING The Type 66 66Z 6624 regulator upper diaphragm casing vent must remain clea
20. gapore Singapore 128461 Tel 65 6777 8211 Europe Bologna Italy 40013 Tel 39 051 4190611 Gallardon France 28320 Tel 433 0 2 37 33 47 00 For further information visit www emersonprocess com regulators TESCOM Emerson Process Management Tescom Corporation USA Headquarters EIk River Minnesota 55330 2445 USA Tel 1 763 241 3238 Europe Selmsdorf Germany 23923 Tel 449 0 38823 31 0 The Emerson logo is a trademark and service mark of Emerson Electric Co All other marks are the property of their prospective owners Fisher is a mark owned by Fisher Controls Inc a business of Emerson Process Management The contents of this publication are presented for informational purposes only and while every effort has been made to ensure their accuracy they are not to be construed as warranties or guarantees express or implied regarding the products or services described herein or their use or applicability We reserve the right to modify or improve the designs or specifications of such products at any time without notice Emerson Process Management does not assume responsibility for the selection use or maintenance of any product Responsibility for proper selection use and maintenance of any Emerson Process Management product remains solely with the purchaser 4 4 EMERSON Emerson Process Management Regulator Technologies Inc 1952 2008 All Rights Reserved Process Mana gement
21. he diaphragm plate key 4 Place another diaphragm plate key 4 on the main diaphragm key 5 so that the plate side faces the main spring key 6 For the Types 66 and 66Z regulators place the lower spring seat key 17 and the washer key 36 on the valve plug stem Secure these parts with the stop nut key 23 For the Type 66ZZ regulator screw on a stop nut key 23 to secure the diaphragm plates key 4 Types 66 664 and 66227 16 17 18 For the Types 66 and 664 regulators align the upper diaphragm casing key 2 using the marks made in the Disassembly section step 3 Place the upper diaphragm casing key 2 on the diaphragm fasten the cap screws and hex nuts keys 21 and 22 tightening the cap Screws using an even crisscross pattern and put the spring key 6 on the spring seat in the spring case For the Type 66ZZ regulator hook the spring Key 6 to the valve stem key 13 Align the upper diaphragm casing key 2 using the marks made in the Disassembly section step 3 put the spring key 6 in the spring case while placing the upper diaphragm casing key 2 on the diaphragm Fasten the cap screws and hex nuts keys 21 and 22 together tightening them using an even crisscross pattern For the Types 66 and 66Z regulators place the upper spring seat key 24 on the spring key 6 For the Type 6622 regulator apply an appropriate lubricant to the ball bearings pull the spring
22. ine and adjustable travel stops 2 inch DN 50 body 4 inch DN 100 body 8 O Ring Nitrile NBR 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body 4 inch DN 100 body NACE Fluorocarbon FKM 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body 9 Disk Retainer Brass 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Stainless steel also NACE 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body 10 Valve Plug Skirt With soft seats Brass 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Stainless steel also NACE 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Metal to Metal Seats Brass 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Stainless steel 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Recommended Spare Parts Part Number 1D255625072 1D477328992 1D477425062 1D477002072 1D477102072 1D477202072 1D477002332 1D477102332 1D477202332 See Tables 1A to 1C 1D477825062 17A9250X012 17 9250 012 1D478025062 1N9449000A2 1V1716X0012 1D785306992 1D785406992 1D785506992 1D785506992 1N115606382 1N115706382 1D2658X0022 1D475814012 1D475914012 1D476014012 1D475835072 1D475935072 1D476035072 1D476112012 1D476212012 1D476312012 1D476133092 1D476233092 1D476333092 1E322712012 1E121512012 1J423612012 1D783012022 1D783112022 1D783212022 Types 66 66Z and 66277 K
23. nch DN 100 body 4 inch DN 100 body NACE Type 66ZZ Brass 2 and 3 inch DN 50 and 80 bodies 4 inch DN 100 body Adjusting Screw For Types 66 and 66Z Aluminum For Type 66ZZ Brass Closing Cap Gasket Neoprene CR Closing Cap For Type 66 with external control line and adjustable travel stops For all others Zinc Flapper Valve Brass Snap Ring Bronze Type Y602 10 Vent Assembly Stainless steel Zinc Pipe Plug Steel not shown Washer Zinc plated steel 2 inch DN 50 body 6 required 3 inch DN 80 body 8 required 4 inch DN 100 body 8 required PE RUNE Part Number 1D530824052 1D5308X0022 1D529624052 1D529624052 1D529624052 14309324122 14309324122 14309324122 10529718992 10530918992 1D5297X0022 1D6496X0012 1D5309X0052 1D5309X0042 1D529718992 1D530918992 1L928608012 1E869214012 1N446206992 1N756414012 14589544022 1C901715072 1D178016012 1D5295000A2 14369224492 10793624152 10716228982 10716328982 35 36 37 38 43 44 45 46 47 48 49 Description Gasket Neoprene CR 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Washer Types 66 and 66Z only 2 and 3 inch DN 50 and 80 Zinc plated steel Sealing Washer Steel 2 and 3 inch DN 50 and 80 bodies 4 inch DN 100 body Counter Spring Type 66Z only Zinc plated steel 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body
24. out of the spring case using a stiff wire hook or similar tool Holding the adjusting screw Key 25 spring retainer key 43 and ten ball bearings key 54 together hook the spring key 6 into the spring retainer key 43 Thread the adjusting screw key 25 into the spring case Apply a good grade of piping compound to the adjusting screw threads remove the rod and thread the pipe plug key 31 into the body and adjust the regulator following the steps in the Start Up section 19 Thread the closing cap key 27 onto the spring case Parts Ordering The Types 66 66Z and 66ZZ regulators have a serial number stamped on a nameplate attached to the upper diaphragm casing When corresponding with your local Sales Office always refer to this serial number of each needed part as found in the following parts list Parts List Key Description 2 3 Note Part Number In this parts list parts marked NACE are intended for corrosion resistant service as detailed in the NACE International standards MR0175 ISO 15156 and or MR0103 Parts Kits Included are keys 5 8 14 18 19 26 and 35 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Valve Body 2 inch DN 50 body NPT connection Cast iron Steel NACE Steel CL125 FF flanged Cast iron CL150 RF flanged Steel NACE Steel CL150 FF flanged Steel NACE Steel CL300 RF flanged Steel 3 inch DN 80 body CL125 FF flanged Cast iron CL150 RF flanged
25. phragm which increases accurate and www emersonprocess com regulators W1935 1 Figure 1 Type 66 Self Operated Pressure Reducing Regulator sensitive response to pressure changes by reducing the unbalanced forces acting on the valve plug This regulator and its installation should be checked for compliance with all applicable codes Specifications The Specifications table lists the specifications for the Types 66 667 and 66ZZ self operated pressure reducing regulators Some of the specifications for a given regulator as it comes from the factory appear on the regulator nameplate Principle of Operation The cast iron Type 66 regulator uses a pitot tube to sense outlet pressure while the steel Type 66 regulator uses an external control line to sense outlet pressure as shown in Figure 6 Both pressure sensing methods register the outlet pressure under the main diaphragm When increased downstream demand lowers the outlet pressure the lower pressure under the main diaphragm causes the regulator main spring and valve plug and stem assembly to open the regulator seat ring and to supply more gas to the downstream system ment EMERS D100247X012 Types 66 664 and 6627 Specifications Body Sizes and End Connection Styles END CONNECTION STYLES NOMINAL AND RATINGS CONSTRUCTION BODY SIZE INCH DN Standard Cast Optional Steel Iron Body Body Type 66 66Z NPT all types 66ZZ or 66 CL150
26. r and unobstructed A clogged vent may cause equipment damage or personal injury due to improper regulator functioning Install and maintain the regulator so that dust insects and weather conditions do not clog or obstruct the vent The vented gas must not be allowed to accumulate where it can cause a hazardous condition In pit underground or indoor installations vented gas can become an explosion fire or toxic hazard Provide piping to remotely vent the gas to a safe area away from buildings air intakes or any hazardous location The line or stack opening must be protected against condensation freezing or any clogging substance If a remote vent is needed remove the upper diaphragm casing vent and connect 3 4 inch threaded NPT piping to the upper diaphragm casing The piping should be as short as possible have as few bends as possible must vent the gas to a safe location and should have a screened vent on the exhaust end With steel bodies an external control line is required Connect 3 4 inch threaded NPT control line to the lower diaphragm casing connection from the point where the downstream pressure is to be sensed A needle valve should be installed in the control line for isolating the regulator and for damping out control line pulses The regulator set pressure is adjusted at the factory for the reduced pressure specified on the order If no pressure is specified the regulator is set for a pressure appro
27. rating Pressure Recommended for Good Performance 66 Series Vacuum Regulators or Breakers Only Vacuum Regulators 10 psig or 20 4 inches of mercury 0 69 bar differential vacuum Vacuum Breakers 6 inches w c or 0 4 inch of mercury 15 mbar differential vacuum Elastomer Temperature Capabilities Nitrile NBR Standard Elastomers 40 to 180 F 40 to 82 Fluorocarbon FKM Elastomers 0 to 350 F 18 to 177 C Ethylenepropylene EPDM Elastomers 40 to 275 F 40 to 135 C Pressure Registration Type 66 662 6622 Cast Iron Body Internal standard or external Steel Body External standard or internal 66 Series Vacuum Regulators or Breakers External Control Line when Used 3 4 inch NPT standard Bottom Flange Line when Used 1 4 inch NPT standard with removable plug Spring Case Vent 3 4 inch NPT standard with removable Type Y602 10 vent assembly Outlet Control Pressure Ranges See Tables 1A through 1C Control Line Connection 3 4 inch NPT Flow and Sizing Coefficients See Tables 2 and 3 Approximate Weights 2 inch DN 50 Body NPT 50 pounds 22 7 kg Flanged 55 pounds 25 0 kg 3 Inch DN 80 Flanged Body 100 pounds 45 4 kg 4 Inch DN 100 Flanged Body 155 pounds 70 3 kg 1 The pressure temperature limits in this Instruction Manual and any applicable standard or code limitation for valve should not be exceeded Types 66 664 and 662727 Table 1A Outlet Control
28. t Seated Type 66 Regulator with external control line a 29 83 N O Ah Seer Q2 6 0 6 amp amp 9 36 17 2 33 28 21 75 32 T 22 C 3 i 16 5 by 4 i 18 5 14 722 ae DRG 15 12 13 9 APPLY LUB 10 i 67 NOT SHOWN 05300 8 23 20 7 Figure 7 Type 66 Regulator Assembly with pitot tube AW RENDER ESSEN N SSSI 5 2 A S D Types 66 66Z and 66ZZ 5 Ns Y DXXXXXXXX ID AT IBN N WA O00000 OO 30A4436 D 2501 1 APPLY LUB 81 NOT SHOWN 21 57 54 43 52 25 Figure 9 Type 6622 Regulator Figure 8 Type 664 Regulator 30 6347 0 12 Key Description 4 Diaphragm Plate Plated steel 2 required 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body 5 Diaphragm Nitrile NBR Nylon PA 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body Fluorocarbon FKM 2 inch DN 50 body 3 inch DN 80 body 4 inch DN 100 body 6 Spring 7 Bottom Flange Zinc plated steel Standard 2 inch DN 50 body 3 inch DN 80 body Type 66 Types 662 and 6622 4 inch DN 100 body Type 66 with external control l
29. the counter spring key 38 against the lower spring seat Key 17 Install the bottom flange gasket key 19 and the bottom flange key 7 on the valve body Secure the flange with the cap screws key 20 Remove the 5 16 inch 7 94 mm or smaller rod rod and replace the pipe plug key 31 in the valve body Replacing Main Spring Main and Balancing Diaphragms and Seat Ring Disassembly 1 For all regulators remove the closing cap key 27 and closing cap gasket key 26 Remove all compression in the spring key 6 by turning the adjusting screw key 25 out of the spring case For the Types 66 and 66Z regulators remove the adjusting screw key 25 the upper spring seat key 24 and the spring key 6 For the Type 66ZZ regulator Figure 9 tip the adjusting screw key 25 to one side so that it can be grasped and pull it the spring retainer key 43 and the ten ball bearings key 54 out of the spring case Unhook the spring key 6 and leave the spring retainer key 43 and the ten ball bearings key 54 in the adjusting screw key 25 Note If a spring change is the only maintenance required for the Type 66 or 66Z regulator proceed to steps 16 through 19 in the Assembly section For further disassembly proceed to step 2 Unscrew the diaphragm casing hex nuts key 22 and remove the cap screws key 21 If a special spring case orientation is required for remote venting mark the si
30. ulator types unless otherwise indicated All key numbers refer to Figures 6 7 8 and 9 unless otherwise indicated Types 66 664 and 66227 Replacing Plug O Ring or Metal Seated Valve Plug 1 Remove hex screws key 20 from the bottom flange key 7 Remove the bottom flange and bottom flange gasket key 19 With the Type 66Z regulator the counter spring key 38 will fall out when the bottom flange is removed Remove the pipe plug from the side of the valve body To keep the valve stem key 13 from rotating insert a 5 16 inch 7 94 mm or smaller rod into the pipe plug hole and through the hole in the valve stem For all regulators with a valve plug O ring remove the stop nut key 23 the disk retainer key 9 the plug skirt key 10 the sealing washer key 37 and the plug O ring key 8 For the Type 66Z regulator also remove the lower spring seat key 17 For a Type 66 metal seated regulator remove the stop nut key 23 and the plug skirt key 10 For all regulators with a valve plug O ring place the sealing washer the plug skirt the O ring and the disk retainer on the plug stem in the order shown in Figures 6 7 8 and 9 For the Type 66Z regulator also place the counter spring seat on the plug stem For a Type 66 metal seated regulator place the plug skirt key 10 on the plug stem key 13 Secure the stop nut key 23 to the plug stem For the Type 66Z regulator place
31. ximately in the middle of the main spring pressure range Check the spring setting to make sure it is correct for the application Startup If the regulator is in a system already pressurized either positive or negative pressure use care when placing the Type 66 66Z or 6624 regulator in service Use pressure gauges to monitor upstream control line if one is used and downstream pressure If the limits in Specifications are exceeded during start up damage to the regulator may result With proper installation completed and downstream equipment properly adjusted slowly open the upstream and downstream block valves while using pressure gauges to monitor pressure Regulator outlet pressure may be monitored on a gauge installed at some point downstream from the regulator If outlet pressure adjustment is necessary for Types 66 66Z 6677 regulators monitor the outlet pressure with a gauge during adjustment Make sure there is flow through the regulator when Types 66 66Z and 6622 checking outlet pressure setting Remove the closing cap key 27 Figures 6 7 8 and 9 and turn the adjusting screw key 25 Figures 6 7 8 and 9 clockwise or toward the spring case to increase the downstream reduced pressure Turn the adjusting screw counterclockwise or away from the spring case to decrease the downstream reduced pressure For vacuum service turning the adjusting screw toward the spring case decreases the vacuum downstre
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