72 Series Servo Valves
Contents
1. Magnet not shown Lower Polepiece Feedback Wire TECHNICAL DATA Moog 72 Series Flow Control Servo Valves 72 SERIES SERVO VALVES General Technical Data Valve design 2 stage with spool and bushing and dry torque motor Pilot stage Nozzle Flapper Standard Dynamics Mounting pattern 30 10372 06 05 0 972 Installation position Any orientation fixed or movable Weight 3 52 kg 7 75 b Storage temperature range Ambient temperature range 40 to 135 C 40 to 275 F Seal material Fluorocarbon FKM 85 SHORE Others upon request Hydraulic Data Maximum operating pressure to ports P T A B 210 bar 3 000 psi 350 bar 4 500 psi special Rated flow at p 35 bar spool land 500 psi spool land 95 l min 25 gpm 150 l min 40 gpm 225 l min 60 gpm Null adjust authority Greater than 10 of rated flow Hydraulic fluid Hydraulic oil per DIN 51524 parts 1 to 3 and ISO 11158 Other fluids on request Temperature range 40 to 60 C 40 to 140 F Recommended viscosity range lO to 85 imine Svea Maximum permissible viscosity range 5 to 1 250 mm s cSt For functional safety Bio 75 10 um absolute For longer life B 75 5 um absolute Static and Dynamic Data at 3 000 psi Rated flow tolerance 10 Step response time for 0 to 100 stroke 95 min 20 gpm 11ms 150 l min 40 gpm 18 ms 225 l min 60 gpm 33 ms Threshold Hysteresis Null shift for AT 38 C 100 F Rev R August 2013 62. TECHNICAL DATA 72 SERIES SERVO VALVES m oO oO Stroke of Rated Signal O 20 0 10 20 30 40 Time ms 96 l min 25 gpm Plot 1 210 bar 3 000 psi Plot 2 70 bar 1 000 psi O Stroke of Rated Signal 40 20 0 10 20 30 40 154 l min 40 gpm Plot 1 210 bar 3 000 psi Plot 2 70 bar 1 000 psi 100 80 60 Stroke of Rated Signa 40 20 0 10 20 30 40 Time ms 231 l min 60 gpm Plot 1 210 bar 3 000 psi Plot 2 70 bar 1 000 psi Rev R August 2013 Moog 72 Series Flow Control Servo Valves ony 2 a ue Tsy 2 2 6 s e 5 100 ies 10 80 Y 4 D 60 5 Q s 40 wo 3 S 20 a 7 10 15 20 30 50 100 200 Frequency Hz 96 l min 25 gpm Plot 1 amp 3 40 rated signal solid Plot 2 amp 4 10096 rated signal dash ag FZ T 2 0 z Q 2 s 5 4 1 E 2 6 8 100 lt s 10 4 80 5 60 3 a 40 4 9 9 20 2 a 7 10 15 20 30 50 100 200 Frequency Hz 154 l min 40 gpm Plot 1 amp 3 40 rated signal solid Plot 2 amp 4 100 rated signal dash 2 2 D a
3. 5516 Eog 188 220 Notes 1 Surface ISO 10372 06 05 0 92 3 Recommended Seals Surface to which the valve is mounted requires flatness 90 durometer that is compatible with the hydraulic fluid of 0 05 mm 0 002 in over 100 mm 3 94 in and an P T A andB Size SAE AS568 019 average finish Ra better than 0 8 um 0 000032 in 20 35 mm 0 801 in inside diameter by 2 Ports 1 78 mm 0 070 in cross section o ring For maximum flow the ports P T A and B must be X Size SAE AS568 012 designed with diameters of 18 mm 0 688 in 9 25 mm 0 364 in inside diameter by 14 23 mm 0 562 in counter bored 17 65 mm 1 78 mm 0 070 in cross section o ring 0 695 in inside by 22 23 mm 0 875 in outside Rev R August 2013 10 BACKGROUND NULL FLOW ADJUSTMENT It is often desirable to adjust the null flow of a servo valve independently of other system parameters We provide two means to accomplish this using a mechanical adjustment on the side of the valve body or an optional magnetic adjustment on the top of the torque motor cover Valves with mechanical null adjustment allow for at least 10 adjustment of null flow The mechanical null adjustment is an eccentric bushing retainer pin located above the tank port designation on the valve body which if rotated provides control of the bushing location Mechanical feedback elements position the spool relative to the valve body for a given input signal Therefore a
4. 9 oc w E 100 80 gt f 60 9 a O w m 20 2 7 10 15 20 30 50 100 200 Frequency Hz 231 l min 60 gpm Plot 1 amp 3 44096 rated signal solid Plot 2 amp 4 10096 rated signal dash TECHNICAL DATA ELECTRICAL DATA Rated current and coil resistance A variety of coils are available for 72 Series Servo Valves which offer a wide choice of rated currents Coil impedance The resistance and inductance of standard coils are given below The 2 coils in each Servo Valve are wound with equal turns giving anormal production tolerance on coil resistance of 10 76 Copper magnet wire is used so the coil resistance will vary significantly with temperature The effects of coil resistance changes can be essentially eliminated through use of a current feedback servoamplifier having high output impedance Ordering code Recommended rated current mA Command signal Moog 72 Series Flow Control Servo Valves Inductance is determined under pressurized operating conditions and ts greatly influenced by back electromagnetic forces of the torque motor These effects vary with most operating conditions and vary greatly with signal frequencies above 100Hz The apparent coil inductance values given are determined at 50 Hz Coil resistance Power consumption W Ohms coil at 25 C 77 F Single coil Series coils Parallel coils Single coil Series coils Parallel coils L 4
5. A side RH Connector over C2 B side LH Special connector lt x W P O Seal material lt Fluorocarbon FKM 85 Shore D Nitrile Buna N NBR 90 Shore D Others onrequest 7 Pilot connections and pressure 3 Maximum operating pressure in bar psi Pressure in bar psi Supply 17 to 210 250 to 3 000 Internal 5 17 to 210 250te 3 000 External 210 3 000 350 5 000 N Ti 6 Spool position without electrical signal M position Bushing spool design see Null Cut Options page 15 for designation 4 way axis cut linear 4 way 10 overlap linear Special 4 way lt 3 overlap linear OC ie Se 4 way axis cut 80 of Pp linear servo drive 5 Pilot stage design F Standard dynamics All combinations may not be available Preferred Models Model Number Type Designation Rated Flow A1 000 psi Rated Current single coil lpm gpm mA 072 1101 SOSFOFM4VBHN 25 5 072 1102 S15FOFM4VBHN 40 15 072 1203 S22FOFM4VBLN 60 40 072 1201 6 SO9KOXM4VBLN 25 40 072 1202 6 S15KOFM4VBLN 40 40 072 1203 6 S22KOFM4VBLN 60 40 Rev R August 2013 18 TAKE A CLOSER LOOK Moog designs arange of motion control products that complement the performance of those featured in this catalog Visit our website for more information and c
6. easier to remove the visible o ring and carefully pry the housing and filter out Rev R August 2013 Moog 72 Series Flow Control Servo Valves self locking fitting Insert a 3 32 inch Allen wrench in the null adjustor pin Use the 3 32 Allen wrench to rotate the mechanical adjustor pin to obtain the desired null flow Re torque the self locking fitting to 57 in lbs Magnetic Adjustment Procedure With zero current electrical connector disconnected Using a blade screwdriver or coin rotate the magnetic adjustor on top of the motor cap clockwise If the flow is to the B port and acceptable the adjustor should not be rotated more than 50 degrees If the flow is to the B port and unacceptable rotate the adjustor 180 degrees from the zero null bias which will result tn null flow to the A port with a clockwise rotation Again no more than 50 degrees The magnetic null adjustment allows at least 10 adjustment to the null flow The magnetic null adjustor is located on top of the motor cap which tf rotated magnetically biases the first state torque motor with two opposing flat blade screwdrivers than to continue pulling on the screw Be careful not to damage the o ring groove 5 A bore will be visible inside the body cavity where the o ring plug must be inserted 6 Retain the o ring plug with the set screw 7 Re install the filter and filter housing in the cavity 8 Re install the filter cover retaining screws and
7. lockwashers Torque the screws to 80 90 in Ibs Note If at any time you are uncertain about how to affect the reconfiguration please return it the factory and we will be happy to do it for you External Pressure Port X Port 11 BACKGROUND Moog 72 Series Flow Control Servo Valves FLOW CALCULATION The actual flow is dependent upon the electrical command Flow Diagram signal and valve pressure drop The flow for a given valve pressure drop can be approximated using the square root function for sharp edge orifices 85 380 100 a A Py Q actual flow rated flow Ap actual pressure drop per spool land Ap rated pressure drop per spool land 38 10 7 70 700 100 1 000 10 000 Ap bar psi SPOOL NULL CUT OPTIONS Standard Axis Cut Open Center Spool Valves Closed Center Spool Valves Q Q z Q Underlap Overlap Zone Tne Input Current Input Current Input Current Default without request for Normally used in hydraulic motor Normally used in failsafe optional cuts applications applications Rev R August 2013 12 BACKGROUND RELATED PRODUCTS Din Rail Modules Analog Control Cards Moog s DIN rail mounted module analog control cards are ideal for use in enclosures where space is limited Modules include servoa
8. 0 20 40 Coil Inductance H Measured at 50 Hz Single coil Ordering code Parallel coils 2 0 059 0 18 Coil connections A 4 pin electrical connector that mates with an MS3106F14S 2S is standard All 4 torque motor leads are available at the connector so external connections can be made for series parallel or differential operation 72 Series Servo Valves can be supplied on special order with other connectors or pigtails Configuration for valve opening P gt B A gt T Series A B or C D Rev R August 2013 A D B and C connected 1 000 0 064 0 032 0 032 0 045 0 023 0 023 80 0 128 0 064 0 064 Parallel A and C B and D TECHNICAL DATA Moog 72 Series Flow Control Servo Valves INSTALLATION DRAWINGS AND NULL ADJUST INSTRUCTIONS 1 Typical Wiring Schematic 7 11 280 6 35 250 i Typical wiring schematic Filter 4X 10 31 mm 0 406 in thru Optional Magnetic Null Adjust Connector mates with MS3106 14S 25 NO UP WN Fluid Industrial hydraulic fluid per DIN 51524 parts 1 to 3 and ISO 11158 maintained to ISO 4406 Code 17 14 11 recommended Viscosity 10 to 85 mm s cSt at 38 C 60 to 300 SUS at 100 F Operating Temperature Range Fluid 40 to 60 C 40 to 140 F Ambient 40 to 135 C 40 to 275 F Valve Phasing Flow out port B results when Series coils B amp C connected A D Parallel
9. 0 070 in cross section 1 piece filter tube 44 um 1 piece Field replaceable filter 20 um 1 piece motor cap gasket Documents not included in scope of delivery Part designation Description Part number Catalog 72 series general information Note Visit CDL 6266 www moog com industrial literature to download document Service manual 72 standard series Note Visit CDS 6211 www moog com industrial literature to download document Service manual 72 intrinsically safe K series Note Visit CDS 6754 www moog com industrial literature to download document Rev R August 2013 ORDERING INFORMATION ORDERING CODE Model number assigned at the factory Type designation 3 45 6 7 8 9 10 1 Z Moog 72 Series Flow Control Servo Valves 72 Optional feature Series specification K Intrinsically safe Model designation assigned at factory Factory identification revised level 1 Valve version S Standard response 2 Rated flow in l min gpm For Apy 70 bar 1 000 psi per spool land 09 95 25 15 150 40 22 225 60 10 Signals for 100 spool stroke 4 4mA series 8 mA parallel H 7 5 mA series 15 mA parallel L 20mA series 40 mA parallel Y Special signal on request Valve connector Connector over C1
10. 0 micron Beta 10 gt 75 high pressure filter without by pass just before the valve or critical parts of the valve e g pilot e Usea3 micron Beta 3 gt 75 low pressure filter in the return or bypass line e Use a filter in the tank breather that is at least the same filtration level as the finest filter in the system This recommendation ts based on the fact that most servo and proportional valves can accept the odd particle up to 25 microns so the pressure filter will protect the valve from catastrophic failure The real work is done by the low pressure filter reducing the small particle contamination which ts the prime contributor to component wear and silting Rev R August 2013 Moog 72 Series Flow Control Servo Valves Valve Tester m Mounting Manifolds Hydraulic Filters Assuming that the filters are properly dimensioned and care is taken during initial installation and maintenance the aim should be to limit oil contamination to 16 13 under the old ISO 4406 or 19 16 13 under the new ISO 4406 For long life the maximum levels per the old and new ISO are 15 12 and 18 15 12 respectively It is important to note that these are maximum contamination levels and with proper care and regular filter change significantly lower levels can and should be achieved Attention must also be paid to a number of other factors that contribute to oil condition problems such as elevated temperatures high tank humi
11. AFTER STORAGE We recommend to check the original packaging valve spare parts and accessories for possible damage or alterations due to storage that is before use Damaged or not functional valves spare parts and accessories must not be started up Sealing materials with the following characteristics must not be used e Contamination e Cracking e Hardening softening e Stickiness e Discoloration Storage Time gt 5 Years We recommend that the valve be checked by us or one of our authorized service centers after a storage time of more than 5 years Storage Time gt 10 Years After a storage time of more than 10 years the valves have to be checked by us or one of our authorized service centers 14 BACKGROUND Moog 72 Series Flow Control Servo Valves ABOUT MOOG Moog Inc ts a worldwide designer manufacturer and integrator of precision control components and systems Moog s Industrial Group designs and manufactures high performance motion control solutions combining electric hydraulic and hybrid technologies with expert consultative support in a range of applications including energy production and generation machinery industrial production machinery and simulation and test equipment We help performance driven companies design and develop their next generation machines Moog maintains facilities in 26 countries around the globe This vast scope ensures that our engineers remain close to the needs of machi
12. SERVO VALVES PILOT OPERATED FLOW CONTROL VALVE WITH ANALOG INTERFACE 72 SERIES ISO 10372 06 05 0 92 Rev R August 2013 HIGH PERFORMANCE TWO STAGE DESIGN PROVIDING FLOW CONTROL IN A SIMPLE DEPENDABLE LONG LIFE DESIGN WHAT MOVES YOUR WORLD INTRODUCTION Moog 72 Series Flow Control Servo Valves Whenever the highest levels of motion control performance and design flexibility are required youll find Moog expertise at work Through collaboration creativity and world class technological solutions we help you overcome your toughest engineering obstacles Enhance your machine s performance And help take your thinking further than you ever thought possible TABLE OF CONTENTS INTRODUCTION Product Overview Features and Benefits 4 Description of Operation TECHNICAL DATA General Hydraulic Static and Dynamic 6 Response Curves Electrical Data 8 Installation Drawings and Null Adjust Instructions 9 Hole Pattern for Mounting Surface 10 BACKGROUND Null Flow Adjustment 11 Flow Calculation and Null Cut Options 12 Related Products 13 Routine Maintenance Guidelines 14 About Moog 15 ORDERING INFORMATION Accessories and Spare Parts 17 Ordering Code 18 This catalog is for users with technical knowledge To ensure all necessary characteristics for function and safety of the system the user has to check the suitability of the products described herein The products described herein are subject to change without no
13. cision flow control and predictability Dry torque motor design Eliminates potential contamination issues in the air gaps of the torque motor that could cause machine downtime Hardened 440C Bushing and Spool Provides for long life wear resistance when used in the harsh environments provides for low sliding friction during use Emergency failsafe positioning Most valves are set up to return to a failsafe position when the command signal is interrupted or eliminated Field replaceable pilot stage filter Enables preventive maintenance in the field saving precious machine downtime and service costs External null bias adjustment Enables technicians to manually adjust the null bias of the valve to adapt to the conditions of the machine see section on null flow adjustment Page 12 This feature provides a simple adjustment to machine performance without the need to adjust a controller Rev R August 2013 4 INTRODUCTION DESCRIPTION OF OPERATION The 72 Series Flow Control Servo Valve consists of a polarized electrical torque motor and two stages of hydraulic power amplification The motor armature extends into the air gaps of the magnetic flux circuit and is supported in this position by a flexure tube The flexure tube acts as a seal between the electromagnetic and hydraulic sections of the valve The 2 motor coils surround the armature one on each side of the flexure tube The flapper of the first stage hydraulic amplifier ts ri
14. coils A amp C connected amp D connected A and C B and D Single coils A B or C D Null Adjust Flow out port B results with the clockwise rotation of the null adjust screw Rev R August 2013 Location pin refer to section Hole Pattern for position 36 50 1 437 1 Z 552 i 85 72 LIN 3 375 J a el Mechanical Null Adjust screw requires 3 8 wrench and 3 32 hex key Surface Surface to which valve is mounted requires flatness of 0 05 mm 0 002 in over 100 mm 3 94 in and an average finish Ra better the 0 8 um 0 000032 in Ports 14 23 mm 0 562 in counter bored 17 65 mm 0 695 in inside by 22 23 mm 0 875 in outside Recommended Seals 90 durometer that is compatible with the hydraulic fluid P T A andB Size SAE AS568 019 20 35 mm 0 801 in inside diameter by 1 78 mm 0 070 in cross section o ring X Size SAE AS568 012 9 25 mm 0 364 in inside diameter by 1 78 mm 0 070 in cross section o ring TECHNICAL DATA Moog 72 Series Flow Control Servo Valves 72 SERIES HOLE PATTERN FOR MOUNTING SURFACE Size mm a 48 48 Cm 48 17 48 6 35 3 18 7 92 0 688 0 688 0 688 0 688 O25 0 312 3 8 l6 Ses 5 Position iE mm 36 53 11 13 61 93 36 53 55 58 49 99 11 13 73 03 73 03 1 438 0 438 2 438 1 438 2 188 1 968 0 438 2 8 5 2 8 5 Position Y mm 17 48 Aa E A 4 Eog 79 0 688
15. dity dirty new oil etc 13 BACKGROUND ROUTINE MAINTENANCE GUIDELINES Every six months or 4 000 operating hours check for proper operation of the control valve assembly by performing the preventative maintenance steps outlined below These checks do not require removal of the valve from the process line If a problem is suspected repair the valve assembly prior to returning the unit to service e Replace the hydraulic filter element e Stroke the valve and check for smooth full stroke operation unsteady motion could indicate a servo valve actuator or process valve problem GENERAL INFORMATION Effects when Storing Valves The following effects may occur when storing valves for a long time e Sealing materials become brittle possibly resulting in leaks e Hydraulic fluid becomes gummy possibly resulting in friction e Electrolytic capacitors of the valve electronics may fatigue possibly resulting in adverse effects on the valve electronics Storage Time The storage time starts at stock receipt and ends at mounting of the valve Preservatives If conservation ts carried out use only conservatives which are compatible with the sealing materials and do not affect the valve spare parts and accessories BEFORE STORAGE Note If the valves are exposed to aggressive environmental influences during storage vacuum packaging may be necessary We recommend the following preparatory measures for storage M
16. ed to FM ATEX CSA TIIS and IECEx standards Valve design 2 stage with spool and bushing and dry torque motor Mounting surface 50 10372 06 05 0 92 Rated flow at pp 35 bar spool land 95 l min 150 l min 225 min 500 psi spool land 25 gpm 40 gpm 60 gpm Maximum operating pressure to ports P T A B X 210 bar 3 000 psi Pilot Design Nozzle Flapper Step response time for 0 to 100 stroke 11 ms i TII APPROVED Intrinsically safe valve versions are available for use in potentially hazardous environments Specific models are certified to FM ATEX CSA TIIS and IECEx standards Contact Moog for details Rev R August 2013 3 INTRODUCTION Moog 72 Series Flow Control Servo Valves FEATURES AND BENEFITS The 72 Series is part of Moog s family of Mechanical Feedback Servo Valves This is proven technology that performs reliably in machines where high performance stability and accuracy are required Moog s Mechanical Feedback Valves are designed to provide high reliability and long service life Benefits 2 stage design Enables high machine performance faster cycle times and greater accuracy all resulting in higher productivity 100 factory tested to ensure critical specification Ensures smooth and easy startup reduces downtime and performance insures long life in critical industrial applications Dual Coil torque motor Redundancy for high reliability Dual Precision Nozzles in Torque Motor Pre
17. gidly attached to the midpoint of the armature The flapper extends through the flexure tube and passes between 2 nozzles creating two variable orifices between the nozzle tips and the flapper The pressure controlled by the flapper and nozzle variable orifice is fed to the end areas of the second stage spool Electro hydraulic Servo Valve Cut away Coil Connector Flexure Tube Flapper Nozzles Spool Bushing Inlet Orifice Rev R August 2013 Moog 72 Series Flow Control Servo Valves The second stage is a conventional four way spool design in which output flow from the valve at a fixed valve pressure drop is proportional to spool displacement from the null position A cantilevered feedback spring ts fixed to the flapper and engages a slot at the center of the spool Displacement of the spool defects the feedback sprint which creates a force on the armature flapper assembly Input signals induce a magnetic charge in the armature and cause a deflection of the armature and flapper This assembly pivots about the flexure tube and increases the size of one nozzle orifice and decreases the size of the other The differential pressure created by this action causes spool motion The resulting spool displacement induces a linear force in the feedback wire which opposes the original input signal torque Spool movement continues until the feedback wire force equals the input signal force Upper Polepiece Armature
18. movement of the bushing relative to the body changes the null flow Mechanical Adjustment Procedure With zero current electrical connector disconnected Using a 3 8 inch offset wrench loosen the self locking fitting until the null adjustor pin can be rotated This should usually be less than 1 2 turn DO NOT remove the X PORT CONFIGURATION The X Port is provided to allow an external pilot supply to be connected This feature ts usually configured at the factory However tt can be configured in the field with special instructions and considerations The external pilot configuration provides for a higher pressure to enable a faster pilot response Each valve model ts developed with a predetermined pilot configuration If you choose to modify that configuration tn the field we offer the following 1 Remove the set screw from the X port on the base of the valve using a 1 8 Allen wrench 2 Thread a 2 56 screw into the o ring plug that is now visible and remove it from the X port 3 Remove the four 4 socket head cap screws and lockwashers that retain the cover plate for the field replaceable filter using a 3 1 6 Allen wrench 4 Use one of the screws to pull the filter and filter housing out of the filter cavity of the body The filter housing has two 2 o rings on its O D The housing will come part way out then stop after the second o ring passes the internal relief in the body At this time it may be
19. mplifers transducer conditioning electronics command and auxiliary function modules valve drive amplifiers and power supplies All of these modules are CE marked and require a 24V DC supply The modules mount to standard 35mm DIN rail mount for easy installation and removal PortableValve Testers Evaluates Valves in the Field Valve testers are a cost effective method for evaluating valves in the field They provide a quick and easy means of differentiating between hydraulic and electronic problems There are five models to choose from each with different levels of capability and flexibility to meet your specific requirements All valve testers have a compact easily portable design Mounting Manifolds Easier Installation and Maintenance Various mounting manifolds are available for standard industrial valves including base and adapter types for mounting and flushing requirements Other hardware such as bolts and connectors are also available The specific accessories you may need for a particular model are listed in the relevant product catalogs and can be ordered through your local office Filtration Oil Filtration Requirements for Industrial Servo Systems The most effective way to reduce life cycle costs of an oil hydraulic system regardless of the types of valve used is through close attention to contamination control For industrial servo systems the ideal system filter arrangement is summarized as follows e Useal
20. ne builders and provide flexible design solutions and technical expertise tailored to our customers toughest challenges Moog experts work in close collaboration with machine builders and application engineers to design motion control systems for greater productivity higher reliability superior connectivity less costly maintenance and more effective operations Our regional presence industry knowledge and design flexibility ensures Moog motion control solutions are tailored to their environment from meeting operating regulations and performance standards to taking machine performance to a higher level Products At the heart of every Moog solution ts an array of products engineered for precision high performance and reliability For more than six decades Moog products have been specified for critical machine applications Some are developed specifically for unique operating Radial Piston Pumps environments Others are standard equipment on machines across many industries All are continuously improved to take advantage of the latest technology breakthroughs and advancements Moog products include e Servo Valves and Proportional Valves e Servo Motors and Servo Drives e Servo Controllers and Software e Radial Piston Pumps e Actuators e Integrated Hydraulic Manifold Systems and Cartridge Valves Servo Drives e Slip Rings e Motion Bases Rev R August 2013 t3 BACKGROUND Moog 72 Series Flow Con
21. ontact the moog facility nearest you Argentina 5411 43265916 info argentina moog com Australia 61 39561 6044 info australia moog com Brazil 55 11 3572 0400 info brazi moog com Canada 1 716652 2000 info canada moog com China 86 21 2893 1600 info china moog com Finland 358 92517 2 30 info finland moog com France 33 1 4560 7000 info france moog com Germany 49 7031 622 0 info germany moog com Hong Kong 852 2 635 3200 info hongkongs moog com India 91 80 4057 6666 info india moog com Ireland 353 21 451 9000 info treland moog com Italy 39 0332421111 info italy moog com Japan 81 46 355 3767 info japan moog com Korea 82 31 7646711 info korea moog com Luxembourg 352 40 46 401 info luxembourg moog com The Netherlands 31 252 462 000 test moog com Norway 47 6494 1948 info norway moog com Russia 7 8317131811 info russia moog com Singapore 03067730230 info singapore moog com South Africa 27 12653 6 768 info southafrica moog com Spain 34 902 133 240 info spain moog com Sweden 46 31 680 060 info sweden moog com Switzerland 41 71 3945010 info switzerland moog com Turkey 90 216 663 6020 info turkey moog com United Kingdom 44 168 429 6600 info uk moog com USA 1 716652 2000 info usa moog com www moog com industrial Moog ts aregistered trademark of Moog Inc and its subsidiaries All trademarks as indicated herein are the property of M
22. oog Inc and its subsidiaries 2013 Moog Inc All rights reserved 72 Series Flow Control Servo Valves TJW PDF Rev R August 2013 Id CDL6266 en MOOG WHAT MOVES YOUR WORLD
23. ou can count on to quicker commissioning set up and diagnostics keep your equipment operating as it should e Access to reliable services that are guaranteed to offer consistent quality anywhere in the world This promise offers many benefits to our customers For more information on Moog Global Support visit including www moog com industrial service e Reduce your downtime by keeping critical machines running tn peak performance e Protect your investment by ensuring reliability fs versatility and long life of products e Better plan your maintenance activities and make GLOBAL J systematic upgrades 7 SUPP ORT e Leverage our flexible programs to meet the unique service requirements of your facility Look to Moog for global support including e Repair services using OEM parts are performed by trained technicians to the latest specifications e Stock management of spare parts and products to prevent unplanned downtime Rev R August 2013 16 ORDERING INFORMATION Moog 72 Series Flow Control Servo Valves ACCESSORIES AND SPARE PARTS Series Dependent Accessories and Spare Parts Accessories 72 Series Part designation Description Part number Attachment screws 4 required M10x50 long ISO 4762 10 9 tightening B64929 009B050 Metric Torque 36 Nm 3 8 16 UNC by 2 0 long tightening torque 318 lbf in C66391 332B Inch 4 pin electrical connector 49054F014S002S MS3106F14S 2S Mounting manifold Base mo
24. ount the shipping plate on the valve This ts the only way of adequately protecting the valves against the ingress of dirt and moisture and protecting the seals against the effects of ozone and UV Put the valve spare parts and accessories into the original packaging Package each valve separately Enclose anti tarnish paper or package the valve spare parts and accessories with corrosion inhibiting film Only for storage time gt 1 year Multipacks of single valves in their individual packages are allowed Seal the original packaging properly This ts the only way of adequately protecting the valves spare parts and accessories against damage Rev R August 2013 Moog 72 Series Flow Control Servo Valves STORAGE CONDITIONS We recommend the following ambient conditions for storage e Dust free moderately ventilated e As vibration free and shock free as possible Shock resistance as per EN 60068 2 27 50 g 6 directions half sine 3 ms Vibration resistance as per EN 60068 2 6 30 g 3 axes frequency 10 to 2 000 Hz Temperature Recommended 15 to 25 C 59 to 77 F Permissible 40 to 80 C 40 to 176 F Temperature fluctuations gt 10 C 50 F must be avoided Distance to shielded radiators gt 1 m 3 ft No direct exposure to sunlight No sources of light with a high UV content UV rays generate ozone which damage sealing materials Relative air humidity lt 65 non condensing
25. tice In case of doubt please contact Moog Moog is a registered trademark of Moog Inc and its subsidiaries All trademarks as indicated herein are the property of Moog Inc and its subsidiaries For the full disclaimer refer to www moog com literature disclaimers For the most current information visit www moog com industrial or contact your local Moog office Rev R August 2013 2 INTRODUCTION Moog 72 Series Flow Control Servo Valves PRODUCT OVERVIEW The 72 Series flow control servo valves are throttle valves for 3 and preferably 4 way applications They area high performance 2 stage design that covers the range of rated flows from 95 to 225 l min 25 to 60 gpm at 35 bar 500 psi valve pressure drop per spool land The output stage ts a closed center four way sliding spool The pilot stage is a symmetrical double nozzle and flapper driven by a double air gap dry torque motor Mechanical feedback of spool position ts provided by a cantilever spring The valve design ts simple and rugged for dependable long life operation These valves are suitable for electrohydraulic position speed pressure or force control systems with high dynamic response requirements The 72 Series is ideally suited for applications in the 95 to 225 l min 25 to 60 gpm when superior dynamics area must Intrinsically safe valve versions are available for use in applications with potentially hazardous environments Specific models are certifi
26. trol Servo Valves ABOUT MOOG Hydraulic solutions Since Bill Moog invented the first commercially viable servo valve in 1951 Moog has set the standard for world class hydraulic technology Today Moog products are used in a variety of applications providing high power enhanced productivity and ever better performance for some of the world s most demanding applications Electric solutions Clean operation low noise generation less maintenance and reduced power consumption make Moog electric solutions ideal for applications Flight Simulation worldwide Moog ts the ideal partner for applications where transitioning technologies requires special expertise Hybrid solutions By incorporating the advantages of existing hydraulic and electric technologies including modular flexibility increased efficiency and cleanliness into innovative hybrid solutions Moog offers new performance potential in specialized applications Formula One Simulation Table Moog Global Support e Flexible programs tailored to your needs such as upgrades preventative maintenance and annual multi year contracts Moog Global Support is our promise to offer world class Repair and Maintenance Services delivered expertly by our trained technicians With the reliability only available from a leading manufacturer with facilities around the world e On site services bring the expertise to you providing Moog offers you service and expertise y
27. unting manifold four port 22236AMO003 Flushing plate Manifold employed in place of valve when initially cleaning hydraulic fluids G4321AMO01 AMO manifold Adjustable metering orifice manifold used to bleed fluid between A andB A96920AM015 ports for better pressure control CRV manifold Cross port relief manifold used to limit pressure levels in ports A andB 6571 LAMO04 XXXX Safety manifold Sandwich manifold used to lock extend and retract cylinder upon loss Bo4467AM of electrical signal or hydraulic pressure Spare Parts 72 Series Part designation Description Part number Base O ring for P T A 4required for P T A and B ports 20 4 mm Fluorocarbon FKM 85 shore 42082 040 0 801 in inside diameter x 1 8 mm 0 070 in cross section Equivalent MIL R 83248 size 019 X port O ring 1 required for the X port 9 25 0 364 in x 42082 013 1 8mm 0 070 in cross section Equivalent MIL R 83248 size 012 Replaceable filter S 5 4 um nominal 23020 Pilot stage tube Replaceable filter um nominal 22050 Field replaceable Filter replacement kit Contains the following Fluorocarbon FKM 85 shore B52555RK099K001 2 pieces O ring 26 7 mm 1 051 in inside diameter x 1 8 mm 0 070 in cross section 1 piece O ring 9 2 mm 0 364 in inside diameter x 1 8 mm 0 070 in cross section 2 pieces O ring 4 mm 0 161 in inside diameter x 1 8mm 0 070 in cross section 2 pieces O ring 3 3 mm 0 130 in inside diameter x 1 8 mm
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