017-95
On/off valve for electric actuation, step-by-step operation - closed at zero current

The step-by-step on/off valve for electric actuation opens or closes the outlet area at the main valve, as long as one of the two solenoid valves (5A, 5B) is live. Without electric voltage at the solenoid valves (5A, 5B) the main valve remains closed. The opening and closing rate of the main valve is reached by opening or closing the solenoid valves (5A, 5B) slowly and incrementally, as well as via the settings at the throttle check valves (4A, 4B). The electric actuation has to be provided by the customer.

The on/off valve can be used as an alternative to shut-off valves with electric actuator (observe closing times).

Versions/position of main valve
- Closed at zero current (model no. 1795)
- Hydraulically locked at zero current (model no. 1796)
- Open at zero current (model no. 1797)

Use:
- Flow regulaton (open/close)
- Inflow or outflow control (e.g. for high-level tank)

Minimum inlet pressure: 1 bar
Minimum pressure difference between inlet and outlet pressure: 1 bar

For rating, please specify the following:
- Max. flow
- Inlet pressure (P1 side)
- Holding pressure / back pressure (P2 side)
- Voltage (e.g. 24 V / 230 V)
- Type of power (alternating current / direct current)
- Type: 1795, 1796 or 1797

Components:
1: main valve
2: ball valve (A, B)
3: filter
4: throttle check valve (A, B)
5: solenoid valve (A, B)
6: manometer with ball valve
7: position indicator or opening limiter (option)

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Material: Body parts, orifice plate, housing: GJS-400, Hawle epoxy powder coated
Control line, orifice plate: stainless steel
Diaphragms, gaskets: EPDM
Solenoid valve: red brass, stainless steel
Max. operating Pressure: See table
Medium Water

The step-by-step on/off valve for electric actuation opens or closes the outlet area at the main valve, as long as one of the two solenoid valves (5A, 5B) is live. Without electric voltage at the solenoid valves (5A, 5B) the main valve remains closed. The opening and closing rate of the main valve is reached by opening or closing the solenoid valves (5A, 5B) slowly and incrementally, as well as via the settings at the throttle check valves (4A, 4B). The electric actuation has to be provided by the customer.

The on/off valve can be used as an alternative to shut-off valves with electric actuator (observe closing times).

Versions/position of main valve
- Closed at zero current (model no. 1795)
- Hydraulically locked at zero current (model no. 1796)
- Open at zero current (model no. 1797)

Use:
- Flow regulaton (open/close)
- Inflow or outflow control (e.g. for high-level tank)

Minimum inlet pressure: 1 bar
Minimum pressure difference between inlet and outlet pressure: 1 bar

For rating, please specify the following:
- Max. flow
- Inlet pressure (P1 side)
- Holding pressure / back pressure (P2 side)
- Voltage (e.g. 24 V / 230 V)
- Type of power (alternating current / direct current)
- Type: 1795, 1796 or 1797

Components:
1: main valve
2: ball valve (A, B)
3: filter
4: throttle check valve (A, B)
5: solenoid valve (A, B)
6: manometer with ball valve
7: position indicator or opening limiter (option)

Contacts
Wish List
Order Nr.
*)
DN
Operating pressure max.
PN
L
Medium Weight Specification Basket
179504010
   40 16 bar 10/16 200 mm 11,50 kg
179505010
 1) 50 16 bar 10/16 230 mm 13,40 kg
179506510
   65 16 bar 10/16 290 mm 17,00 kg
179508010
 1) 80 16 bar 10/16 310 mm 23,00 kg
179510010
 1) 100 16 bar 10/16 350 mm 32,00 kg
179512510
   125 16 bar 10/16 400 mm 48,00 kg
179515010
 1) 150 16 bar 10/16 480 mm 56,00 kg
179520010
   200 10 bar 10 600 mm 118,00 kg
179520020
   200 16 bar 16 600 mm 118,00 kg
179525010
   250 10 bar 10 730 mm 254,00 kg
179525020
   250 16 bar 16 730 mm 254,00 kg
179530010
   300 10 bar 10 850 mm 358,00 kg
179530020
   300 16 bar 16 850 mm 358,00 kg
Wish List
1)
Also available as angled type, product numbers on request.

PN 25 on request (up to DN 200)