Direct Acting Pressure Reducing Valve for Water & Air
Technical Specifications
- Model: DP-4W
- Size: DN15-DN150 ( 1/2″-6″)
- Fluid temperature: 5-80 C
- Inlet pressure: Max.2.0MPa
- Reduced pressure: 0.05~0.7MPa ( Standard ), 0.7~1.2 MPa ( Medium pressure )
- Body: WCB, STS
- Disc, Seat: NBR, STS
- Connection : JIS 20K FF/ Class 150#/ PN16 RF Flanged
Product Description
Download PDF datasheet & selection guide.
Application
DP-4W is a direct-acting pressure reducing valve suitable for water and air media. It can withstand inlet pressure up to 2.0 MPa, making it ideal for piping systems with relatively high working pressure. The valve automatically reduces upstream pressure and maintains stable downstream pressure, widely used in industrial water and compressed air pipelines, building water supply networks, and fire protection systems. It can be applied as a dedicated pressure reducing valve for fire protection facilities, protecting downstream pipelines and terminal equipment from overpressure damage and securing stable and safe system operation.
Features
- Supports both horizontal and vertical installation, offering flexible on-site piping layout.
- Maintains constant outlet pressure automatically once the pressure is set.
- Features a wide adjustable pressure range and delivers stable flow performance.
- Eligible for use as a fire-protection pressure reducing valve.
- Adopts direct-acting structure with simple construction, reliable performance and quick pressure response.
Specifications
| Item | Parameter |
|---|---|
| Applicable Media | Water, Air |
| Inlet Pressure | ≤2.0 MPa |
| Regulated Pressure | 0.05~0.7MPa (Standard), 0.7~1.2 MPa (Medium pressure) |
| Max. reducing ratio | 10:1 |
| Min. pressure difference | 0.05 MPa |
| Applicable temperature | ≤80℃ |
| Connection | JIS 20K /150 Lb/ PN16 RF |
| Materials | Body: WCB, STS |
| Hydrostatic test | 3.5MPa |
Installation Note
A strainer (80 mesh or finer) must be installed upstream of the valve inlet during installation.
