Product Description
- Diaphragm-controlled pressure reducing valve with pre-pressure compensation for reliable reduction of an inlet pressure of up to 16 or 25 bar to a downstream pressure of 0.5 to 9 bar in large-scale piping systems with water or neutral media.
- The DRV 678 is a diaphragm-controlled pressure reducing valve with pre-pressure compensation for infinitely variable adjustment of a back pressure of 0.5 to 9 bar at a maximum pre-pressure of 16 or 25 bar.
- It has flange connections in accordance with DIN EN 1092 – PN 25 for DN 65 and DN 80, PN 16 for DN 100 to DN 150 – as well as G 1/4" pressure gauge connections on both sides.
- The housing is made of red brass, the internal parts in contact with the medium are made of brass and V4A stainless steel, making the valve ideal for industrial water and neutral media applications up to 100 °C.
- Front compensation
- membrane-controlled
- stepless adjustment of the back pressure
- max. inlet pressure up to 16/25 bar
- Back pressure range - 0.5 to 9 bar
- Flanges according to DIN EN 1092 PN 25 (DN 65 and DN 80)
- Flanges according to DIN EN 1092 PN 16 (DN 100 to DN 150)
- double-sided pressure gauge connection G 1/4"
- Can be installed in any position, preferably vertically
- Minimum pressure drop (upstream and downstream pressure) - 1 bar
- Temperatures - from -15 °C to +100 °C
- Housing - Red brass CC499K
- Spring cover - grey cast iron
- Seals - NBR
- media-contacting internal parts - brass / stainless steel V4A
- Price per item
