017-04
On/off valve for electric actuation - open at zero current

Description:
The on/off valve for electric actuation opens or closes the outlet area at the main valve. The valve can be used as an alternative to shut-off valves with electric actuator (observe closing times).

Filling and discharge of the pilot chamber is controlled via the solenoid valve. The main valve is opened at zero current and closed when energized. To avoid water hammers, the closing rate can be adjusted via the throttle check valve.

Version/position of main valve:
- Open at zero current (model no. 1704)
- Closed at zero current (model no. 1703)

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

For rating, please specify the following:
- Max. admissible flow rate
- 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: 1704 or 1703

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

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Material: Body parts: GJS-400, Hawle epoxy powder coated
Control line: stainless steel
Diaphragms, Gaskets: EPDM acc. to KTW-BWGL for water
Solenoid valve: brass, stainless steel
Max. operating Pressure: See table
Medium Water

Description:
The on/off valve for electric actuation opens or closes the outlet area at the main valve. The valve can be used as an alternative to shut-off valves with electric actuator (observe closing times).

Filling and discharge of the pilot chamber is controlled via the solenoid valve. The main valve is opened at zero current and closed when energized. To avoid water hammers, the closing rate can be adjusted via the throttle check valve.

Version/position of main valve:
- Open at zero current (model no. 1704)
- Closed at zero current (model no. 1703)

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

For rating, please specify the following:
- Max. admissible flow rate
- 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: 1704 or 1703

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

Contacts
Wish List
Order Nr.
*)
Operating pressure max.
DN
PN
L
Medium Weight Specification Basket
170400400
   16 bar   10/16 210 mm 9,33 kg
170400410
   16 bar   10/16 210 mm 9,33 kg
170404010
   16 bar 40 10/16 200 mm 13,33 kg
170405010
 1) 16 bar 50 10/16 230 mm 21,33 kg
170406510
   16 bar 65 10/16 290 mm 26,33 kg
170408010
 1) 16 bar 80 10/16 310 mm 32,33 kg
170410010
 1) 16 bar 100 10/16 350 mm 40,33 kg
170412510
   16 bar 125 10/16 400 mm 60,50 kg
170415010
 1) 16 bar 150 10/16 480 mm 65,50 kg
170420010
   10 bar 200 10 600 mm 119,50 kg
170420020
   16 bar 200 16 600 mm 119,50 kg
170425010
   10 bar 250 10 730 mm 255,50 kg
170425020
   16 bar 250 16 730 mm 255,50 kg
170430010
   10 bar 300 10 850 mm 358,50 kg
170430020
   16 bar 300 16 850 mm 358,50 kg
Wish List
1)
Also available as angled type, product numbers on request.

PN 25 on request (up to DN 200)