1470040000 Druckstossentl.ventil DN 40
Components
- 1: Main valve
- 2: Ball valves (A, B, C, D)
- 3: Filter
- 4: Orifice
- 5: Throttle check valve
- 6: Control valve DAV
- 7: Control valve DRV with ZK
- 8: Optical position indicator (optional: Electrical position indicator, opening limiter)
- 9: Pressure gauge with ball valve
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Product attributes
| DN | 40 |
|---|---|
| PN | 16 |
| L (mm) | 200 |
| B1 | 190 mm |
| B2 | 160 mm |
| H1 | 220 mm |
| H2 | 400 mm |
|
KVS l/min. | 315 |
| weight | 18.600 kg |
Physical characteristics
- The main valve is a hydraulically operated diaphragm valve; the operating energy is provided by the medium itself.
- Most valve types operate purely hydraulically, without any external energy supply.
Application
- Application in drinking water (other media on request)
- Reduction of pressure peaks in the event of a power failure during pump operation
Mode of operation
- The surge relief valve is installed near a pump at the outlet of a pressure pipeline. During controlled start-up and shutdown of pumping systems, no harmful pressure surges occur. In the event of a power failure, however, the abrupt stopping of the pump can cause dangerous pressure surges in the system, which may result in severe damage to the installation.
- The surge relief valve can reduce these pressure surges by opening during the low-pressure wave so that it is fully open when the high-pressure wave returns, allowing the excess pressure to be discharged to atmosphere.
Product information
- For sizing the valve, please provide us with the following information:
- Static pressure upstream of the valve with the pump switched off
- Pump operating pressure
- Flow rates
- Water hammer calculations
- Existing pipe diameters
Design
- Design according to DIN EN 1074
- Face-to-face dimensions according to DIN EN 558
- Flanschenmasse nach DIN 1092-2, bis PN 25 DN 300
- Pressure ratings: PN 10 or PN 16 up to DN 300
- Flange dimensions according to DIN EN 1092-2, up to PN 25 / DN 300
- Nominal sizes 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. Depending on the installation situation, a mounting/dismounting adapter should be provided.
Vantages
- Maintenance-free, non-rusting valve seat
- Pressed-in seat
- EWS-coating according to RAL GSK
Caution
- Dimension H1 is increased by 110 mm up to DN 100 and by 130 mm from DN 125 to DN 300 with electrical position indicator and opening limiter.
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