Pilot Operated Pressure Reducing Valve
PREDU® P
PREDU® P, our pilot operated pressure reducing valve with precise control – even with high and widely varying flow rates and inlet pressures.
The PREDU® P is a self-acting pilot operated pressure reducing valve for use on steam and air, that will accurately control downstream pressure (P2), regardless of the upstream pressure (P1), or demand from the system. A pilot valve senses the downstream pressure (P2) which in turn controls the main valve. The result is a very narrow proportional band which together with the low hysteresis enables very precises and stable pressure control.
Your Advantages
- Accurate pressure control, even at high and variable flow rates
- PFAS free design
- Even easier to service due to hardened reversing plug (plug sealing surfaces on both sides)
- Robust and resistant piston design
- Easier maintenance because of removable piston guide
- Cost-saving due to internal pressure sensing. External pressure sensing lines are available but not necessary.
PREDU® P
PREDU® P
Product Features PREDU® P
Technical Data
| Standards | DIN EN; ANSI |
|---|---|
| Series | 702 |
| Nominal pressures | PN 16; PN 25; PN 40 (DIN EN) Class 150; Class 300 (ANSI) |
| Nominal diameters | DN 15 – 50 (DIN EN) 1/2" – 2" NPT and G (ANSI) |
| Temperature range | 0 °C – +220 °C |
| Upstream pressure range | 2 barg – 16 barg |
| Body materials | 1.0619; 1.4408 (DIN EN) WCB; CF8M (ANSI) |
| Sealing types | PFAS free sealing |
| Plug types | Reversible plug (ground on both sides) |
| Connection types | Flanges; screwed connection |
| Body types | Straight through body |
| Actuators | Pilot operated |
| Approvals | PED |
Areas of Use
Markets (excerpt)
- Industry
- HVAC
- Shipbuilding
- Oil & Gas
- Chemicals
- Pharmaceuticals & Biotechnology
- Food & Beverages
- Energy
Applications (excerpt)
- Pressure reduction with variable pre-pressures and mass flows while maintaining constant control quality
- Autoclaves for sensitive products
- Heating jackets in the chemical industry
- Heat exchangers with a low temperature tolerance specification
- Uniform tank heating
- Sterilisation with steam
- Systems for precise pressure control (e.g. calender roll presses)
Flow Media
- Steam
- Air
Pressure reducing station with pilot operated pressure reducing valve PREDU® P
