013-04
Flow limiting / control valve for electric actuation - open at zero current

The flow control / limiting valve limits a preset max. flow from a higher pressure zone to a lower pressure zone, independent of varying operating pressures. The nominal flow is infinitely adjustable via the pilot valve up to +/- 15%. The electric solenoid valve controls the filling and emptying of the pilot chamber. 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:
- Closed at zero current (model no. 1303)
- Open at zero current (model no. 1304)

Minimum inlet pressure: 1 bar (Please consider: pressure loss due to main valve and orifice approx. 0.5 bar)

Make sure to allow for flow calming sections between the main valve and the orifice plate (x = 5 x DN) and downstream of the orifice plate (y = 3 x DN)!

For rating, please specify the following:
- Flow rate to be limited
- Inlet pressure (P1 side)
- Outlet pressure (P2 side)
- Voltage (e.g. 24 V / 230 V)
- Type of current (alternating current / direct current)
- Type: 1303 or 1304

Components:
1: main valve
2: ball valve (A, B, C)
3: filter
4: orifice
5: throttle check valve
6: pilot valve
7: differential pressure measuring orifice plate
8: optical position indicator with vent plug (option: electric position indicator, opening limiter)
9: electric solenoid valve
10: manometer with ball valve (A, B)
B: DN 40- DN 150: 22 mm
DN 200 - DN 250: 27 mm
DN 300: 29 mm
X: 5 x DN pipe
Y: 3 x DN pipe

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

The flow control / limiting valve limits a preset max. flow from a higher pressure zone to a lower pressure zone, independent of varying operating pressures. The nominal flow is infinitely adjustable via the pilot valve up to +/- 15%. The electric solenoid valve controls the filling and emptying of the pilot chamber. 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:
- Closed at zero current (model no. 1303)
- Open at zero current (model no. 1304)

Minimum inlet pressure: 1 bar (Please consider: pressure loss due to main valve and orifice approx. 0.5 bar)

Make sure to allow for flow calming sections between the main valve and the orifice plate (x = 5 x DN) and downstream of the orifice plate (y = 3 x DN)!

For rating, please specify the following:
- Flow rate to be limited
- Inlet pressure (P1 side)
- Outlet pressure (P2 side)
- Voltage (e.g. 24 V / 230 V)
- Type of current (alternating current / direct current)
- Type: 1303 or 1304

Components:
1: main valve
2: ball valve (A, B, C)
3: filter
4: orifice
5: throttle check valve
6: pilot valve
7: differential pressure measuring orifice plate
8: optical position indicator with vent plug (option: electric position indicator, opening limiter)
9: electric solenoid valve
10: manometer with ball valve (A, B)
B: DN 40- DN 150: 22 mm
DN 200 - DN 250: 27 mm
DN 300: 29 mm
X: 5 x DN pipe
Y: 3 x DN pipe