Product Description
- Diaphragm-controlled pressure reducing valve with pre-pressure compensation for reliable reduction of an inlet pressure down to 0.5 bar from a back pressure of 0.5 to 9 bar in water, compressed air and neutral media systems with medium to high flow rates.
- The DRV 478 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 40 bar.
- It features external threads in accordance with ISO 7, an integrated dirt trap, replaceable internal parts and G 1/4" pressure gauge connections on both sides for pressure monitoring.
- The robust red brass housing with NBR seals is designed for operating temperatures up to 100 °C and is suitable for use in water- and gas-carrying industrial applications.
- Front compensation
- membrane-controlled
- stepless adjustment of the back pressure
- max. inlet pressure up to 40 bar
- Back pressure range - 0.5 - 9 bar
- External thread according to ISO 7, from R 1/2" to R 2 1/2"
- with integrated dirt trap
- Cartridge / internal parts replaceable
- double-sided pressure gauge connection G 1/4“ (for rear pressure)
- Can be installed in any position, preferably vertically
- Minimum pressure difference (front and rear pressure) - 1 bar
- Temperature - -15°C to +100°C
- Housing - Red brass CC499K
- Spring cover - up to DN 32 brass, from DN 40 grey cast iron
- Membranes and seals - NBR
- media-wetted internal parts - up to DN 32 Hostaform C & brass, from DN 40 brass
- Price per piece
