014-01
Safety / pressure retention valve with non-return function

Description:
The relieving or retention pressure of the safety / pressure retention valve is infinitely adjustable via the pilot valve between 1,5-12 bar. Any excessive system pressure is relieved via the main valve opening quickly. Closing is effected slowly to avoid water hammers. The non-return function prevents return flow when the inlet pressure is lower than the outlet pressure.

Use:
- Protection of the system from overpressure (safety valve)
- Maintaining the preset mains system pressure in the upstream piping network (pressure retention valve)

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

For rating, please specify the following:
- Flow (max.)
- Inlet pressure (P1 side)
- Retention pressure and/or relieving pressure (P2 side)
- Holding pressure / back pressure

Components:
1: main valve
2: ball valve (A, B)
3: filter
4: orifice
5: throttle check valve
6: pilot valve
7: manometer with ball valve
8: optical position indicator with vent plug (option: electric position indicator, opening limiter)
9: needle valve
10: check valve (A, B)

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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
Pilot valve: stainless steel
Max. operating Pressure: See table
Medium Water

Description:
The relieving or retention pressure of the safety / pressure retention valve is infinitely adjustable via the pilot valve between 1,5-12 bar. Any excessive system pressure is relieved via the main valve opening quickly. Closing is effected slowly to avoid water hammers. The non-return function prevents return flow when the inlet pressure is lower than the outlet pressure.

Use:
- Protection of the system from overpressure (safety valve)
- Maintaining the preset mains system pressure in the upstream piping network (pressure retention valve)

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

For rating, please specify the following:
- Flow (max.)
- Inlet pressure (P1 side)
- Retention pressure and/or relieving pressure (P2 side)
- Holding pressure / back pressure

Components:
1: main valve
2: ball valve (A, B)
3: filter
4: orifice
5: throttle check valve
6: pilot valve
7: manometer with ball valve
8: optical position indicator with vent plug (option: electric position indicator, opening limiter)
9: needle valve
10: check valve (A, B)

Contacts
Wish List
Order Nr.
*)
DN
Operating pressure max.
PN
L
Medium Weight Specification Basket
140100400
   IG 1 1/2" 16 bar 10/16 210 mm 11,00 kg
140100410
   IG 2" 16 bar 10/16 210 mm 11,00 kg
140104010
   40 16 bar 10/16 200 mm 13,00 kg
140105010
 1) 50 16 bar 10/16 230 mm 16,00 kg
140106510
   65 16 bar 10/16 290 mm 21,00 kg
140108010
 1) 80 16 bar 10/16 310 mm 27,00 kg
140110010
 1) 100 16 bar 10/16 350 mm 35,00 kg
140112510
   125 16 bar 10/16 400 mm 52,00 kg
140115010
 1) 150 16 bar 10/16 480 mm 61,00 kg
140120010
   200 10 bar 10 600 mm 114,00 kg
140120020
   200 16 bar 16 600 mm 114,00 kg
140125010
   250 10 bar 10 730 mm 250,00 kg
140125020
   250 16 bar 16 730 mm 250,00 kg
140130010
   300 10 bar 10 850 mm 359,00 kg
140130020
   300 16 bar 16 850 mm 359,00 kg
Wish List
1)
Also available as angled type, product numbers on request.

PN 25 on request (up to DN 200)