background image

Disassembly

03/2021

221.100.002-00

15

www.uni-geraete.com

Replacing wearing parts

1. Replace the O-rings (403/1, 403/2).
2. Replace the lip-rings (404/1, 404/3).
3. Replace the guide rings (206).

Installing the valve

1. Push the balance piston (220/1) into the piston guide (221/1).
2. Screw the balance piston (220/1) with the piston guide (221/1) into the valve chamber (100).
3. Secure the solenoid core (207) with the bolt (902) and the SL-retainer (949) or split pin (912).
4. Insert the pressure spring (503) and spring bolt (210).
5. Screw on the Upper part of housing (106).

14

Disassembly

Warning

Danger of burns from hot components.

The solenoid drive can become hot during continuous operation. This poses a risk of burns.

Allow the solenoid drive to cool down or wear suitable gloves before disassembling it.

1. Depressurise the piping system.
2. Allow the medium in the piping system to cool down.
3. Drain the system.
4. Ventilate the piping system if media with one of the following properties are used:

Corrosive

Flammable

Aggressive

Toxic

5. Disconnect the valve from the power supply and secure it against being switched on again.
6. Secure the valve against falling down.
7. Loosen the flange screw connections.
8.

If the valve is to be serviced:

 Insert protective caps.

9. Dismantle the solenoid drive (see operating instructions for solenoid drive).

15

Troubleshooting

1. In the event of a malfunction, first check whether the valve has been mounted correctly.
2. If the valve has been mounted correctly, use the troubleshooting chart.
3. If the problem persists, contact the manufacturer.

15.1 Troubleshooting chart

The following item numbers refer to the respective valve in Fig. 1 – Fig. 7.

Fault

Possible causes

Remedy

No flow

Valve does not open

Switch on solenoid drive (800)

Check voltage

Operating pressure too high

Compare operating pressure with data 
on nameplate

Protective caps have not been removed Remove the protective caps

Low flow rate

Dirty strainer

Clean/replace strainer

Blockage in piping system

Check piping system

Valve leaking at the 
seat, no internal tight-
ness

Valve disc seal (400) or valve seat (100) 
damaged by foreign objects

Replace seals (See “Installing the spare 
parts kit” on page 13)
 or valve

Содержание 10-EVSA

Страница 1: ...chnische Fabrik GmbH Holtumsweg 13 D 47652 Weeze Germany Telephone 49 0 2837 9134 0 Fax 49 0 2837 1444 Email info uni geraete de Homepage www uni geraete de Automatic shut off valve solenoid valve NC...

Страница 2: ...0 10 2 Installing the valve 11 10 3 Connecting the valve electrically 11 11 Commissioning 11 12 Decommissioning 11 13 Maintenance 12 13 1 Maintenance intervals 12 13 2 Maintenance at the plant operato...

Страница 3: ...r ature class or the respective maximum permissible medium temperature See Technical specifications on page 5 If the valve is heated the temperature classes specified in the system must be observed Th...

Страница 4: ...ions for solenoid drive Operating instructions for optional attachments 5 Intended use The EVSA solenoid valves are used as automatic shut off valves for securing limiting shutting off and releasing t...

Страница 5: ...tandard Optional 20 C to 60 C See nameplate Ambient temperature 20 C to 60 C Supply voltage Direct current Alternating current 12 V 440 V 15 to 10 24 V 500 V 15 to 10 40 60 Hz Power consumption 10 400...

Страница 6: ...127 127 127 127 153 153 D 50 50 55 68 68 75 16 EVSA B 460 480 B 620 640 C 194 194 D 55 68 25 EVSA B 450 B 610 C 194 D 75 40 EVSA B 460 469 B 620 620 C 194 194 D 50 A overall length acc to DIN e g ANSI...

Страница 7: ...94 D 90 110 143 151 167 16 EVSA B 440 B 600 C 194 D 110 25 EVSA B B C D 40 EVSA B 470 B 630 C 194 D 90 A overall length acc to DIN e g ANSI flanges and DIN overall length or DIN flanges and overall le...

Страница 8: ...PT 4 EVSA 005 3 008 2 008 2 008 2 010 012 014 016 PT10 10 EVSA 008 2 008 2 008 2 010A5 012A5 014A5 016A5 PT16 40 EVSA 012 PT40 DN flange ANSI flange PN 15 5N 1 2 20 7N 3 4 25 10N 1 32 12N 1 1 4 40 15N...

Страница 9: ...Electrical power Voltage Frequency Degree of protection For solenoid drives for Ex protection zone 1 additionally Ignition protection type Certificates 8 Transport Warning Risk of crushing and impact...

Страница 10: ...installation compare the following valve specifications with the system diagram of the piping sys tem Material Pressure Temperature Voltage Direction of flow Only connect and operate the valve when i...

Страница 11: ...ad to fatal injury from crushed and severed limbs Only connect and operate the valve when it is correctly installed Danger of electric shock Live conductors pose a hazard when working on the valve Bef...

Страница 12: ...m a functional test and an internal and external leakage test See Internal visual inspection with replacement of all sealing ele ments on page 12 Every ten years or at the latest after the following n...

Страница 13: ...talling the spare parts kit Danger Risk of explosion due to incorrect lubricants and sealing materials The medium may undergo a chemical reaction and explode if unsuitable lubricants or sealing materi...

Страница 14: ...housing 106 3 Remove the spring bolts 210 1 and the pressure springs 503 1 4 Remove the bolt 902 1 with the SL retainer 949 or split pin 912 5 Remove the solenoid core 207 6 Loosen the hexagon head sc...

Страница 15: ...le Aggressive Toxic 5 Disconnect the valve from the power supply and secure it against being switched on again 6 Secure the valve against falling down 7 Loosen the flange screw connections 8 If the va...

Страница 16: ...ot aligned Item Qty Designation Description 100 1 Ventilgeh use Valve chamber 106 1 Oberteil Upper part of housing 108 1 Geh useflansch Housing flange 109 1 Geh usezylinder Housing cylinder 110 1 Dist...

Страница 17: ...etantrieb Solenoid drive 900 1 4 6 8 12 Sechskantschraube Hex head screw 900 2 4 Sechskantschraube Hex head screw 901 1 Sechskantmutter Hex nut 902 1 1 Bolzen Bolt 902 2 1 Bolzen Bolt 903 1 Kerbstift...

Страница 18: ...18 221 100 002 00 03 2021 www uni geraete com 4 10 EVSA 16 EVSA 30N H 1...

Страница 19: ...03 2021 221 100 002 00 19 www uni geraete com 16 25 EVSA 2...

Страница 20: ...20 221 100 002 00 03 2021 www uni geraete com 40 EVSA 5NH 3...

Страница 21: ...03 2021 221 100 002 00 21 www uni geraete com 40 EVSA 10NH 4...

Страница 22: ...22 221 100 002 00 03 2021 www uni geraete com 40 EVSA 25NH 5...

Страница 23: ...03 2021 221 100 002 00 23 www uni geraete com 4 10 EVSA 6...

Страница 24: ...24 221 100 002 00 03 2021 www uni geraete com 40 EVSA 5 4 7...

Страница 25: ......

Отзывы: