Operating Instructions
Contents
1. a miela 6 35 8 16 miela 80 4 16 4 M16 4 M16X40 4 16 90 4 1 m m RO 2 WAFER TYPE 4 et O 310 5 12 O NO 4 220 125 01250 285 0 lt lt lt lt _ 0 0 NO WG O m Z ji O m O NO 2 2 3 O GW GW gt NO NO NO NO 4 M20 M20X90 4 2 20 8 20 451 4 20 1104 M20 8 20 8 20 45 4 20 1201 4 20 BOLT LENGTHS APPLY TO WELDING NECK FLANGES DIN2632 PN10 AND GASKET TO 0132690 THICK gt Oo O THREADED HOLE THROUGH GOING HOLE 2 0 2 VY FOR FASTENING THE GATE VALVE TO THE PIPELINE WE RECOMMEND DESIGN 1 GUDGEON AND NUT FOR THREADED HOLES AS THIS DESIGN USES THE WHOLE DEPTH OF THE THREAD BA46E031 ERHARD Armaturen D 89502 Heidenheim Postfach 1280 August 2003 07321 320 0 B 07321 320 491 e mail info erhard de Rev 7 Internet http www erhard de Page 6 of 8 Operating Instructions for ERHARD ERU Knife Gate Valve K1 with operation by square end 6 Initial Operat2. 46 031 Operating Instructions ERHARD ERU Knife Gate Valve DN 50 300 d Handwheel chain wheel types of operation by square end Description of Product and Range of Application Design Features Technical Data Performance and Mode of Operation Storage Installation into the Pipeline Mounting Initial Operation Operation and Application Maintenance CONOR These operating instructions must always be used in combination with operating instructions BA01E001 1 Description of Product and Range of Application Type Design Product number ERU Knife Gate Valve K1 4655 PN 10 ERU Knife Gate Valve K1 with regulating orifice 4656 PN 10 with non rising stem designed for manual operation by handwheel chain wheel or operating key for extension of the operating device e g by means of extension stem Product No Nominal Nominal Hydr test pressure in bars Max admissible working Diameter Pressure for pressure in bars ata working temperature of DN PN Body Seat max 70 C 4655 4656 50 300 10 15 10 10 4657 4623 50 300 10 15 10 10 46 031 ERHARD Armaturen D 89502 Heidenheim Postfach 1280 Page 1 of 8 August 2003 07321 320 0 B 07321 320 491 e mail info erhard de Rev 7 Internet http www erhard de Operating Instructions for ERHARD ERU Knife Gate Valve K1 with operation by square end lf EPDM profile seals are used for the ERU Knife Gate Valve K1 the parts of EPDM
3. must not get in contact with oil or grease as the EPDM would swell For a recommended lubricant see section Maintenance ERU Knife Gate Valves K1 of this design are suitable for ON OFF operation For explicit regulating service special designs have to be used e g design with regulating orifice Design Features Drawing 3E 65931 ERU Knife Gate Valve K1 with square end operating variants SQUARE MUFF SQUARE CAP 17 32 25 24 20924 2 UP TO CENTRE OF GATE VALVE tS N AN 119 22 29 581 gis 2 2 N Hee 3 1 4 46 031 ERHARD Armaturen D 89502 Heidenheim Postfach 1280 August 2003 oN Page 2 of 8 g 21 07321 320 0 B 07321 320 491 e mail info erhard de Rev 7 Internet http www erhard de UP TO CENTRE OF GATE VALVE Operating Instructions for ERHARD ERU Knife Gate Valve K1 with operation by square end Parts lists and sets of spare parts for drawing 3E 65931 1 Replace profile seal Set 1 every 2 years 2 Replace U shaped sealing element Set 2 every 5 years 3 Replace stem Set 3 if necessary 4 Replace stem nut Set 4 if necessary Item Description Set2 1 2 _ U Shapedsealingelement X 00 4 20000 000000 5 Hexagonnut y o 6 Gate 00 7 XK 8 _ Guidetape
4. 3 Performance and Mode of Operation ERU Knife Gate Valves K1 are wafer type single door gate valves with short face to face dimension A special type of these valves e g with regulating orifice is also suitable for regulating purposes The solid gate slides in a long gate guide between two body components It seals on its periphery against a rubber resilient steel reinforced enclosed U shaped sealing element Where the gate leaves the body tightness to the outside is ensured by a resiliently prestressed profile seal which can be readjusted For reducing wear and tear of the profile seal and the actuating elements the prestress can be reduced to the dimension required for the actual operating pressure The Gate Valves were tested for tightness and resistance to DIN EN 12266 and DIN EN 1074 at the manufacturer s plant They are designed for flow acting from any direction 4 Storage Store ERU Knife Gate Valves 1 in their closed position Rubber coated components as e g the sealing element between the body parts have to be protected against direct solar radiation Avoid the effects of radiant heat e g from heaters BA46E031 ERHARD Armaturen D 89502 Heidenheim Postfach 1280 August 2003 07321 320 0 B 07321 320 491 e mail info erhard de Rev 7 Internet http www erhard de Page 4 of 8 Operating Instructions for ERHARD ERU Knife Gate Valve K1 with operation by square end 9 Installation into the Pipeline Mounti
5. KK 9 Compressor 10 012 y o 11 Washer y o 12 y o 1 Studbolt y o o 14 8 KK 15 1 00000 16 17 J Gudgeon 19 __ 20 8 1 221 eK 22 Distance washer 23 16 y o 24 Washer y o 25 Hexagonnut y o 26 Taperplug 1 __ 27 28 ________ o o 29 o o o o o o o 30 __ Squarecap 1 o 31 grooved o T 2 5 o 33 5 grooved pin o Chainwheel 35 Sealing element o To T y 3 Collardisc o y o 37 Straight grooved pin O J 38 Hexagonbolt oo 46 31 ERHARD Armaturen D 89502 Heidenheim Postfach 1280 August 2003 PN 2 AR Page 3 of 8 amp 07321 320 0 B 07321 320 491 e mail info erhard de Rev 7 Internet http www erhard de Operating Instructions for ERHARD ERU Knife Gate Valve K1 with operation by square end Dimensioned table for drawing 3E 65931 DN D1 D2 D3 E1 E2 H1 H2 H3 H4 L 43 46 200 200 212 195 177 355 376 420 368 46 2 52 2 56 56 25 5 250 395 300 295 32 260 701 736 768 716 400 35 891 32
6. flanges of the pipeline wafer type screwed to the end flange of the pipeline as end of line valves The screwed connection with the pipeline is made from flange to flange by means of bolts in the through going holes For the threaded blind holes the screwed connection is made by means of stud bolts or bolts in the body components It is possible to roughly fasten the valve by means of the threaded holes The necessary connecting elements for the corresponding installation position are shown in drawing No 4E127 920 46 031 ERHARD Armaturen D 89502 Heidenheim Postfach 1280 eet August 2003 07321 320 0 B 07321 320 491 e mail info erhard de 9 Rev 7 Internet http www erhard de Operating Instructions for ERHARD ERU Knife Gate Valve K1 with operation by square end Connecting elements for flange connection drawing 4E127920 FLANGES WAFER TYPE VALVE CONNECTING DIM THREADED HOLEO THROUGH GOING HOLE w ja DESIGN 1 9 DESIGN 2 O GUDGEON HEX NUT HEX BOLT HEX BOL T HEX NU DIN EN 24034 DIN EN 24018 1 EN 24016 DIN EN 2403 QTY SIZElaty s ze lory s ze 011512 16 30 1 E 8 16 201 1 8 M16X35 4 16 110 4 16 35 4 wi6x120 4 m 16 40 4 16 13015 wie 20 8 205501 4 wzoxr30 4 20 20 8 2040 40 5 20 8 20116 0 45 4 0 150 5 20 16 20 16 20 45 4 20 160 4 20 LINE VALVE LUG TYPE mexo ra 5
7. ion Note Before start up spindle and spindle nut are to be greased recommended lubricant see section Maintenance After installation the valve has to be checked for smooth operation It has to be moved at the operating element over the whole travel OPEN CLOSED When the gate being opened gets in contact with the bearing plate the valve is in open position The profile seal is adjusted pretensioned to nominal pressure at the manufacturer s factory In case of lower working pressures after having carried out the pressure test of the pipeline the profile seal can be released to be adapted to the effective working pressure For this purpose the bolts on the cover plate have to be loosened in an appropriate manner By means of this measure you can reduce wear and tear of the components involved in the motion ATTENTION The flow medium may penetrate Wear safety clothing safety goggles in case of toxic or caustic media Extension of the operating elements e g by lever or similar device is not allowed as it might cause damages Operation Possible Causes Leakage at the Prestress too low Readjustment of cover plate cover plate see paragraph 8 Maintenance Wearing of the profile seal Replace profile seal Contamination With valve in open position deposit on the gate clean and grease gate Seat leakage Contamination of the gate With valve in open position clean and grease gate Defective U shaped
8. ng Remove all packing material from the valve Prior to installation check the pipeline for impurities and foreign bodies and clean it if necessary There must be free access all around the valve for operation and maintenance In case of flow media containing solid matters as e g sand etc and installation into horizontal pipelines the stem or the piston rod should not be installed with an inclination of more than 30 towards the horizontal Thus free flushing of the travel range of the gate is possible In case of deviating installation positions especially with suspended stem or piston rod deposits around the gate have to be expected This could lead to malfunctions which increase maintenance work During installation of the valve the distance between the pipe flanges should exceed the valve face to face dimension by at least 20 mm Thus the raised faces will not be damaged and the gaskets can be inserted Steel reinforced rubber seals to DIN 2690 are recommended for use as flange gaskets for slip on flanges they are absolutely necessary consider resistance to flow medium and temperature The mating pipe flanges must be plain parallel and concentric Tighten the connecting bolts evenly without distortion and crosswise The pipeline mustn t by any means be pulled up to the valve If the distance between the flanges is too large for the valve use thicker gaskets to cover the difference ERU Knife Gate Valves K1 are clamped between two
9. sealing element Replace sealing element Excessive operating Contamination deposit the gate With valve in open position forces clean and grease gate Stem running dry Regrease thread Operation blocked Residues of flow medium are Relieve pipe section from pressure hardened Clean and grease all accessible surfaces of gate and stem BA46E031 ERHARD Armaturen D 89502 Heidenheim Postfach 1280 August 2003 07321 320 0 B 07321 320 491 e mail info erhard de Rev 7 Page 7 of 8 Internet http www erhard de Operating Instructions for ERHARD ERU Knife Gate Valve K1 with operation by square end Slacken cover plate Slightly unscrew upper body bolts Knock on the valve with a rubber mallet trying to operate the valve If you are not successful remove dismantle clean replace damaged parts Foreign bodies jammed in the Move valve in OPEN position and repeat seating zone closing procedure 8 Maintenance For inspection or repair the valve or parts thereof must not be removed unless the pipe section in which the valve is installed has been isolated and made pressureless If work is carried out in the vicinity of the valves which leads to soiling concrete work masonry painting sandblasting and the like the valves must be covered effectively ERU Knife Gate Valves K1 have to be moved regularly at short intervals every half years over the whole travel OPEN CLOSED Depending on the flow medi
10. um and the local conditions at the site of application the maintenance interval must be reduced or may be extended If the profile seal is found to be untight retighten the hexagon bolts of the cover plate evenly If it is no longer possible to retighten the cover plate replace the sealing elements Check gate and stem regularly for contaminations clean them if necessary and treat them with lubricant rub in a thin layer Recommended lubricant KLUBERSYNTH VR69 252 company Kluber Lubrication Munich Spare parts and wearing parts according to drawing 3E 65931 BA46E031 ERHARD Armaturen D 89502 Heidenheim Postfach 1280 Page 8 of 8 August 2003 07321 320 0 B 07321 320 491 e mail info erhard de ela Rev Internet http www erhard de
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