1795 1706
Pump protection valve with mecanical non-return flap

1705 Pump protection valve with mecanical non-return flap

Components

  • 1: Main valve
  • 2: Ball valve (A, B)
  • 3: Filter (A, B)
  • 4: Throttle check valve
  • 5: Electric solenoid valve
  • 6: Check valve (A, B)
  • 7: Mechanical non-return flap
  • 8: Electric position indicator
  • 9: Accessories (optional)
Datasheet manual

performance diagram

brochure

certificate

Article No. DN PN
(bar) 		L
(mm) 		weight
(kg) 		Availability Watchlist
1705007000 1 1/2" 16 210 9.000 on demand
Pump protection valve with mechanical non-return flap DN 1 1/2" PN 10/16
1705007000
Add to an existing list
1705008000 2" 16 210 9.000 on demand
Pump protection valve with mechanical non-return flap DN 2" PN 10/16
1705008000
Add to an existing list
1705040000 40 16 200 16.250 on demand
Pump protection valve with mechanical non-return flap DN 40 PN 10/16
1705040000
Add to an existing list
1705050000 50 16 230 16.750 on demand
Pump protection valve with mechanical non-return flap DN 50 PN 10/16
1705050000
Add to an existing list
1705065000 65 16 290 21.800 on demand
Pump protection valve with mechanical non-return flap DN 65 PN 10/16
1705065000
Add to an existing list
1705080000 80 16 310 27.900 on demand
Pump protection valve with mechanical non-return flap DN 80 PN 10/16
1705080000
Add to an existing list
1705100000 100 16 350 35.900 on demand
Pump protection valve with mechanical non-return flap DN 100 PN 10/16
1705100000
Add to an existing list
1705125000 125 16 400 52.000 on demand
Pump protection valve with mechanical non-return flap DN 125 PN 10/16
1705125000
Add to an existing list
1705150000 150 16 480 76.000 on demand
Pump protection valve with mechanical non-return flap DN 150 PN 10/16
1705150000
Add to an existing list
1705200000 200 10 600 115.100 on demand
Pump protection valve with mechanical non-return flap DN 200 PN 10
1705200000
Add to an existing list
1705200016 200 16 600 115.100 on demand
Pump protection valve with mechanical non-return flap DN 200 PN 16
1705200016
Add to an existing list
1705250000 250 10/16 730 247.500 on demand
Pump protection valve with mechanical non-return flap DN 250 PN 10/16
1705250000
Add to an existing list
1705300000 300 10/16 850 356.000 on demand
Pump protection valve with mechanical non-return flap DN 300 PN 10/16
1705300000
Add to an existing list

Physical characteristics

  • The main valve is a hydraulically operating diaphragm valve. The work energy is the inherent medium.
  • Most valve types operate purely hydraulically without any foreign energy.

Application

  • To use in drinking water systems (other media after consultation)
  • Actuation of the valve with the pump control system
  • Protection of the pump against overloading caused by a no–load operation

Mode of operation

  • The pump protection valve opens with a time delay after the pump is started up. Consequently the network pressure increases to the full pump pressure before the valve opens. With a controlled stopping of the pump, the valve closes before the pump stops. The opening and closing speeds can be set on the throttle non–return valve. In the event of a power failure, the fitted mechanical non–return flap prevents the valve from closing too quickly and consequently a backflow to the pump.

Product information

  • To calculate the dimensions of the valve please refer to the following information:
  • Maximum and minimum inlet pressure (static and dynamic pressure ratios)
  • Existing counterpressure
  • Required flow rate, pump capacity
  • Maximum permissible loss of pressure
  • Voltage information for the solenoid valve
  • Available line diameters and lengths
  • Construction of the valve (straight or angle design)
  • The controller is to be provided by the customer.
  • For the calculation basis, information on the loss of pressure and the characteristic values of the valve, please refer to the end of Chapter E.

Design

  • Design according to DIN EN 1074
  • Construction length acc. to DIN EN 558
  • Flange mass according to DIN 1092-2, to PN 25 DN 300
  • Pressure levels: PN 10 or PN 16 to DN 300, PN 25 to DN 200, higher pressures on request.
  • Nominal widths DN 50, DN 80, DN 100 and DN 150 available in angular design
  • Nominal widths 1 ½" and 2" with threaded connection (female thread)
  • Medium temperature up to 40°C

Installation and assembly

  • The pump protection valve is installed in the feed pipe of the pipe. A shut–off valve is to be installed on the outlet side.

Vantages

  • Maintenance-free, non-rusting valve seat
  • Pressed-in seat
  • EWS-coating according to RAL GSK
mehr
  1. Watchlist
  2. Contact
    1. DE
    2. EN