1707 2001
Pipe-break safety device valve, hydraulic control

1709 Pipe-break safety device valve, hydraulic control

Components

  • 1: Main valve
  • 2: Ball valve (A, B, C)
  • 3: Filter
  • 4: Throttle check valve
  • 5: Control valve
  • 6: Accessories (optional)
  • 7: Differential pressure orifice plate
  • 8: Pressure gauge with ball valve
  • B: DN 40 to DN 150: 40 mmDN 200 to DN 400: 44 mm
  • X: 5 x DN line
  • Y: 3 x DN line
Datasheet manual

performance diagram

brochure

certificate

Article No. DN PN
(bar) 		L
(mm) 		weight
(kg) 		NPK No.
411 		Availability Watchlist
1709007000 1 1/2" 16 210 10.000 on demand
Pipe break safety device valve for hydraulical control DN 1 1/2" PN 10/16
1709007000
Add to an existing list
1709008000 2" 16 210 10.000 on demand
Pipe break safety device valve for hydraulical control DN 2" PN 10/16
1709008000
Add to an existing list
1709040000 40 16 200 13.000 845335 on demand
Pipe break safety device valve for hydraulical control DN 40 PN 10/16
1709040000
Add to an existing list
1709050000 50 16 230 16.750 845336 on demand
Pipe break safety device valve for hydraulical control DN 50 PN 10/16
1709050000
Add to an existing list
1709065000 65 16 290 20.550 845337 on demand
Pipe break safety device valve for hydraulical control DN 65 PN 10/16
1709065000
Add to an existing list
1709080000 80 16 310 27.800 845338 on demand
Pipe break safety device valve for hydraulical control DN 80 PN 10/16
1709080000
Add to an existing list
1709100000 100 16 350 35.000 845339 on demand
Pipe break safety device valve for hydraulical control DN 100 PN 10/16
1709100000
Add to an existing list
1709125000 125 16 400 50.600 845341 on demand
Pipe break safety device valve for hydraulical control DN 125 PN 10/16
1709125000
Add to an existing list
1709150000 150 16 480 76.000 845342 on demand
Pipe break safety device valve for hydraulical control DN 150 PN 10/16
1709150000
Add to an existing list
1709200000 200 10 600 115.000 845343 on demand
Pipe break safety device valve for hydraulical control DN 200 PN 10
1709200000
Add to an existing list
1709200016 200 16 600 115.000 on demand
Pipe break safety device valve for hydraulical control DN 200 PN 16
1709200016
Add to an existing list
1709250000 250 10/16 730 250.000 845344 on demand
Pipe break safety device valve for hydraulical control DN 250 PN 10/16
1709250000
Add to an existing list
1709300000 300 10/16 850 351.000 845345 on demand
Pipe break safety device valve for hydraulical control DN 300 PN 10/16
1709300000
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)
  • Closing of the line in the event of excessive water flow (burst pipe)

Mode of operation

  • The pipe breakage safety valve monitors the volumetric flow rate with the differential orifice plate. In the case of a burst pipe, the volumetric flow rate in the differential orifice plate increases, and the difference in pressure becomes larger. The pipe breakage safety valve is switched and the base valve is closed. The flow control valve can be used to adjust the speed that the valve closes.

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
  • Maximum flow rate
  • Maximum permitted loss of pressure (standard loss of pressure through the measuring orifice and valve 0.5 bar)
  • Available line diameters and lengths
  • Construction of the valve (straight or angle design)
  • 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

  • Shut–off valves should be fitted on both sides of the valve and a dirt trap should be installed on the inlet side of the valve (before the orifice plate). Depending on the installation situation, a mounting/dismounting adapter should be provided. An aeration of the supply system must be provided after the valve.
  • The orifice plate must be installed before the valve. It is recommended that the following measurements are taken into consideration:
  • X = 5 x DN, distance in front of the orifice plate in a straight line
  • Y = 3 x DN, distance after the orifice plate and before the valve, in a straight line

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