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END ARMATUREN DA2D3, Original Operating Manual, Page: 20 / 40

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END ARMATUREN DA2D3 Original Operating Manual Download Page 20

20 

http://www.end.de 

DG2D - 07/2016

Assembly Instructions

5.2 

Mounting of the valve (welded connection)

By welding the valve between the pipes you have to disassemble the valve top first, to prevent 

the damage of the seals.

5.2.1 

Disassembly of the valve top

Clamp the valve between a vice carefully. By using guard plates you can prevent the damage  of 

the ends of the body.

At valves with the function „normally close“ we recommend to lift up the valve disk from the seat 

(see also chapter 4.2 „Device variants“). Therefore you have to screw a appropriate hose con-

nector into the pilot port and to connect it with a compressed air hose. By feeding the hose with 

compressed air with a maximum pressure of 6 bar the valve disk will lift up from the seat.

Loosen the valve top with a fit spanner. The spanner have to put on to the hexagon nut  of the screw 

joint. Never put the spanner on to the hexagon nut of the bonnet of the pilot cylinder.

Screw out the valve top of the valve body and take it by side carefully. Place a mark on the body and 

the pilot cylinder that you will be able to join the correct parts by a subsequent mounting of valve.

Fig. 5.2 -Mounting / disassembly - welded connection, disassembly of valve top

Summary of Contents for DA2D3

Page 1: ... Actuated Valve DG2D1 DG2D2 DG2D3 DA2D3 DL2D3 DM2D3 DG3D3 DF3D acc to annex VI of the Directive 2006 42 EC END Armaturen GmbH Co KG Oberbecksener Str 78 D 32547 Bad Oeynhausen Telefon 05731 7900 0 Telefax 05731 7900 199 http www end de ...

Page 2: ...hout prior or direct notice to the client The contents of this publication are subject to change without notice This publication has been written with great care However END Armaturen GmbH Co KG cannot be held responsible either for any errors occurirng in this publication or for their consequences The products are specified by the statements in this documentation no assurance of the properties is...

Page 3: ... acting 15 4 5 6 Description of function Pressure actuated valve 3 2 way 16 4 5 6 1 Split function 16 4 5 6 2 Mixing function 16 4 6 Description of the options function 17 4 6 1 Pilot valve 17 4 6 2 Position indicator 17 4 6 2 1 Optical position indicator 17 4 6 2 2 Electrical position indicator 17 4 6 3 Manual override 17 4 6 4 Stroke stop 17 5 Assembly Instructions 18 5 1 Mounting of the valve t...

Page 4: ... 6 2 Starting 30 7 Emergency operation with manual override Option 30 8 Failure 31 8 1 Failure causes 31 9 Maintenance Cleaning 32 9 1 Maintenance 32 9 2 Cleaning 32 10 Technical data 33 10 1 Technical data DG2D1xx 33 10 2 Technical data DG2D2xx 34 10 3 Technical data DG2D3xx DA2D3xx DL2D3xx DM2D3xx 35 10 4 Technical data DG3D3xx 36 10 5 Technical data DF3Dxx 37 Contents ...

Page 5: ...e to pilot pressure and pressure range operations material connection type and connection size There are also several options available With accessories it can switch the pilot media it can indicate the position of the piston it can happen a manual override it can stop the stroke The field of use of this valve is predominantly in food and drink industry in chemical installations in ventilation and...

Page 6: ...arts in the package 2 3 Complaints Claims for replacement of goods which relate to transport damage can only be considered valid if the delivery company is notified without delay In case of returns because of transport damage repairs please make a damage protocol and send the parts back to the manufacturer if possible in the original packaging In case of return please mention the following Name an...

Page 7: ...ed out for test purposes an a dry part of the plant in the assembly room Since we do not know the circumstances at the time of the mounting adjustment commissioning you may find advice on hazards in the following descriptions which are not relevant to you Please observe only the advice which applies to your situation The partly completed machinery must not be put into service until the final machi...

Page 8: ...low of gases steam liquids etc may be enabled or interrupted Satisfy yourself that as the result of the starting or the test adjustments of the valve no potential hazards will be produced for the personnel or the environment If necessary set up warning signs in order to prevent the inadvertent starting up or shutting down of the devices machines plant By ending mounting check the correct function ...

Page 9: ...e suitability of the non concreate individual case but without any guarantee for the suitability given by END Automation The final responsibility to proof and confirm the suitability of our products for which we confirm the perfect faultless quality by our delivery and payment terms lies in the dependance with your constructive responsibility to the end user Satisfy yourself that as the result of ...

Page 10: ... 4 Cap 5 Connection 6 Pilot port 7 Flow direction indicator 8 Name plate 9 Warning notice 4 Device descriptions 4 1 Device description pressure actuated valve Fig 4 1 Device description front rear figure shows DG2D3111025 without options Device descriptions 6 2 3 1 5 7 8 9 4 5 ...

Page 11: ...DG2D 07 2016 http www end de 11 Device description Fig 4 2 Types of pilot cylinder NC witout options 4 2 Types of pilot cylinder NC piston Ø 80mm piston Ø 125mm piston Ø 50mm piston Ø 63mm piston Ø 32mm ...

Page 12: ... 4 PTFE EPDM 5 NBR PTFE 6 NBR NBR 7 FKM FKM 8 FKM PTFE brass cylinder 0 Ø 32 mm 1 Ø 50 mm 2 Ø 80 mm 3 Ø 125 mm aluminium alloy 4 Ø 100 mm stainless steel cylinder 5 Ø 50 mm 6 Ø 80 mm 7 Ø 125 mm aluminium alloy 8 Ø 100 mm 9 Ø 32 mm threaded flanged and welded connection connection 006 G 008 G 010 G 015 G DN 15 020 G DN 20 025 G 1 DN 25 032 G 1 DN 32 040 G 1 DN 40 050 G 2 DN 50 065 G 2 DN 65 080 G 3...

Page 13: ...d CE mark relates to the Pressure Equipment Directive 2014 68 EU 4 5 Description of function 4 5 1 General A slanting seat in the valve body will be closed with or against the flow direction by a valve disk The valve disk is connected with the piston by a stem It s dynamical sealing and guidance hap pens by a screw joint between valve body and pilot cylinder The slanting valve design renders a hig...

Page 14: ...ve obtains this function by a spring which acts in close direction By feeding with compressed air the pilot pressure moves the piston against the spring and lift up the valve disk from the seat Therefore the valves open Because the valve closes with the flow direction the nominal pressure supports the closing pro cess and seals the valve disk against the seat additionally If the media flows throug...

Page 15: ... valve closes slowly and prevents pressure shocks in the pipes Fig 4 6 Description of function Normally close against the flow direction 4 5 4 Normally open close against the flow direction The in neutral position opened valve obtains this function by springs mounted under the piston The valve closes against the flow direction only by the pilot pressure 4 5 5 Double acting The valve closes against...

Page 16: ...ton by a stem It s dynamical sealing and guidance hap pens by a screw joint between valve body and pilot cylinder The 3 2 way pressure actuated valve renders two functions 1 split function 2 mixing function Pressure actuated valves would be actuated wit a piston by a neutral pilot media air water oil It works in a pressure range from 0 bar up to the max nominal pressure which you can see in the pr...

Page 17: ...le for the red pin in the pilot cylinder is covered by a clear plastic cap You can see the pin in the position open 4 6 2 2 Electrical position indicator Option The electrical position indicator indicates the position of the valve over a long distance or sends a electrical signal to a control box For this there are several position indicators available electric mechanic position indicator contactl...

Page 18: ...o this page The mounting and the electrical installation must be carried out only by trained specialest per sonnel having mechanical and electrical knowledge The following figures are showing the pressure actuated valves without any options Perhaps the valve mounting by you is equiped with options Your device variant you can see at the name plate on the pilot cylinder of the valve For their meanin...

Page 19: ...erve the screw direction Don t use sealing compounds which are not prescribed for your employment Screw the pipes into the connection ends of the valves Don t use the pilot cylinder as a lever Strike up the pipes with pressure after that time the manufacturer of the sealing compounds pre tends for harden it Check the tightness at all connections Assembly Instructions Fig 5 1 Mounting disassembly t...

Page 20: ...s Therefore you have to screw a appropriate hose con nector into the pilot port and to connect it with a compressed air hose By feeding the hose with compressed air with a maximum pressure of 6 bar the valve disk will lift up from the seat Loosen the valve top with a fit spanner The spanner have to put on to the hexagon nut of the screw joint Never put the spanner on to the hexagon nut of the bonn...

Page 21: ... The safety demands by welding are depending on the place and the position of the point of weld Welding the parts at a serviceable device machine plant the potential of danger is as higher as welding the parts in a welding room If appropriate inform the shift foreman safety engineer or the works manager and the fire brigade of your factory By welding observe your own national guide lines about saf...

Page 22: ...ssary attach the valve tops to the bodies Take care about the correct placement of the sealing into the screw joint and that there will be no pollution on the sealing or the seat Tighten the valve top with a fit spanner The spanner have to put on to the hexagon nut of the screw joint Never put the spanner on to the hexagon nut of the bonnet of the pilot cylinder Let off the compressed air to get t...

Page 23: ...alve body between the flanges by using the appropriate sealings Aligns the flange drill holes and put the fit screws through the holes Screw the fit nuts onto the screws and tighten it up crosswise By doing this observe the maximum torque moment of the screws Check the tightness at all connections Assembly Instructions Fig 5 5 Mounting disassembly flange connection flow direction o k cool down ...

Page 24: ...turer prescribes to harden the sealing compound Connect the pilot medium hose with the hose connector Use only the correct hose for your appli cation Fasten the hose into the hose connector By laying the hose take care that the hose will not be creased squeezed or sheared or that the hose will be laid over edges Also take care that there will be no pressure or traction on the hose Lay the hoses to...

Page 25: ...the pilot port of the pressure actuated valve A sealing is on the male thread other sealing compounds are not necessary By tighten the solenoid valve use a suitable spanner Don t use the solenoid valve as a lever The connection of the pilot media ensues by the devices of chapter 5 4 Mounting of the connector of the pilot medium by screwing the threaded connection of the hose into the free thread c...

Page 26: ...into the terminals and tighten the screw The correct joining you will see in the wiring diagram Take care that no bare lead stand out from the terminals thus preventing the danger of a shock or a short circuit Mount the plug Take care that no lead will be squeezed The cover of the body can be fixed with 90 turn Screw up the PG screw fitting so firmly that the strain relief is effective and the cab...

Page 27: ... Remove the sheaths of the cable and remove the isolation of the leads In case of leads with stranded conductors provide the ends in each case with a wire end sleeve Lead the cable through the PG screw fitting Put the leads end into the terminals and tighten the screws The correct joining you will see in the wiring diagram Take care that no bare lead stand out from the terminals thus preventing th...

Page 28: ...ply and take care to prevent the inadvertent switching on Open the housing cover by turning out the screws Loosen the screws of the terminal and pull the leads out of the terminals Loosen the PG screw fittings and pull the cable out of the device Isolate the bare leads end if the cables are not also being disassembled or are not to be immedi ately reconnected to another actuator 5 7 2 Mechanical d...

Page 29: ...ke stop Option If your pressure actuated valve will have an stroke stop you are able to limited the stroke in the valve Therefore you can regulate the flow rate of the valve Loosen the locking nut with a spanner Turn the set screw clockwise to decrease the flow rate counter clockwise to increase the flow rate Check the adjustment and if necessary correct it Save the set screw by tighten the lockin...

Page 30: ...nits 7 Emergency operation with manual override Option If your pressure acting valve will have a manual override the valve could be open by hand in case of a breakdown of the pilot pressure or the pilot power supply The manual override should only be actuated if there is no pilot pressure in the valve While automatic running the hand wheel must be set in the closed position If necessary inform the...

Page 31: ...asures Next using the following list 8 1 Failure causes attempt to find the reason for the causes of the failure and if it lies within your capabilities to correct this Do not try to repair the pressure actuated valve Isolate the failed pressure actuated valve from the power supply and disconnect the pilot pres sure port In case of defect in the valve make contact with the supplier The telephone n...

Page 32: ...on and installation manual If you determinate that there is a damage to the valve isolate it from the pilot pressure and the power supply However before doing this it is essential to refer to the Safety advice Chapter 3 9 2 Cleaning Clean the body of the valve as required using a slightly moistened soft cloth and a normal house hold cleaner Do not use any abrasive corrosive or flammable cleaning a...

Page 33: ...n Ø 125mm PILOT PRESSURE 2 10 bar MEDIA neutral gases and liquids up to 400 mm2 s TEMPERATURE RANGE 10 C up to 90 C AMBIENTE TEMPERATURE max 60 C PILOT MEDIA Air water oil on request INSTALLATION as desired OPTIONS Optical position indicator electrical position indicator manuel override stroke stop free of oil and grease vacuum version MEDIA PRESSURE see table pressure specifications in bar Operat...

Page 34: ...ESSURE 2 10 bar MEDIA neutral gases and liquids up to 400 mm2 s TEMPERATURE RANGE 30 C up to 180 C AMBIENTE TEMPERATURE max 60 C PILOT MEDIA air water oil on request INSTALLATION as desired OPTIONS Optical position indicator electrical position indicator position indication by inductive proximity switch manual override stroke stop free of oil and grease hygienic version food MEDIA PRESSURE see tab...

Page 35: ...mm 80mm G 1 4 DIN ISO 228 T1 Piston Ø 125mm PILOT PRESSURE 2 10 bar standard 6 10 bar others on request MEDIA gases and liquids up to 400 mm2 s aggresive media on request TEMPERATURE RANGE 30 C up to 180 C AMBIENTE TEMPERATURE max 80 C PILOT MEDIA Air water oil on request INSTALLATION as desired OPTIONS Optical position indicator electrical position indicator position indication by inductive proxi...

Page 36: ...LOT PRESSURE 2 10bar standard 6 10bar others on request MEDIA gases and liquids up to 400 mm2 s TEMPERATURE RANGE 20 C 180 C AMBIENTE TEMPERATURE max 60 C PILOT MEDIA Air water oil on request INSTALLATION optional observe flow direction OPTIONS Optical position indicator electrical position indicator manual override free of oil and grease vacuum version MEDIA PRESSURE see table pressure specificat...

Page 37: ...s cylinder Sk Ø 125 Stem seal PTFE CONNECTION Flanges PN16 Flanges PN16 DN65 will be delivered in 4 hole execution PILOT PORT G 1 8 DIN ISO 228 T1 PILOT PRESSURE 2 10bar standard 6 10bar others on request MEDIA gases and liquids up to 400 mm2 s TEMPERATURE RANGE 10 C 180 C AMBIENT TEMPERATURE max 60 C PILOT MEDIA Air water oil on request INSTALLATION optional observe flow direction OPTIONS on requ...

Page 38: ...38 http www end de DG2D 07 2016 ...

Page 39: ......

Page 40: ...ksener Str 78 D 32547 Bad Oeynhausen Telefon 49 0 5731 7900 0 Telefax 49 0 5731 7900 199 Internet http www end de E Mail post end de Watergates GmbH Co KG Oberbecksener Str 70 D 32547 Bad Oeynhausen Telefon 49 0 5731 7900 0 Telefax 49 0 5731 7900 199 Internet http www watergates de E Mail post watergates de ...

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