P48H Quick Draining Valve
• P48H-16Q / P48H-25Q / P48H-16C / P48H-25, PN16/PN25/PN40 flanged quick draining valve
• DN25–DN50, ductile cast iron (≤300°C) or cast steel WCB (≤425°C) body options
• Disc & seat rings: 2Cr13 or stainless steel for reliable sealing
• Manual lever operation for rapid drainage of sediment and impurities
• Suitable for water, steam, petroleum, and oil products
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Gaoshan Valve — P48H Quick Draining Valve
Model: P48H-16Q / P48H-25Q / P48H-16C / P48H-25 | Pressure: PN16 / PN25 / PN40 | Connection: Flanged | Medium: Water, Steam, Petroleum
Product Overview
The P48H Quick Draining Valve is a specialized drainage device designed for water and steam piping systems. It functions as an opening and closing mechanism that effectively eliminates internal sediment, dirt, and other impurities from the system. Available in ductile cast iron (QT450) for PN16/PN25 ratings up to 300°C, or cast steel WCB for higher pressure and temperature demands up to 425°C, the P48H ensures clean operation of piping networks in industrial applications. The manual lever design provides quick opening and closing, allowing operators to drain accumulated debris rapidly without complex tools or procedures.
Key Advantages
Effective Sediment Removal
Specially designed to eliminate internal sediment, dirt, and impurities from water and steam piping systems, maintaining system cleanliness and operational efficiency over long service periods.
Robust Material Options
Available in QT450 ductile cast iron (PN16/PN25, ≤300°C) or WCB cast steel (PN16/PN25/PN40, ≤425°C), giving you the flexibility to select the right material for your specific pressure and temperature conditions.
Manual Lever Operation — Quick Response
Features a convenient lever handle design for quick opening and closing. Operators can drain accumulated debris rapidly without complex tools or procedures, reducing downtime during maintenance cycles.
Reliable Sealing Performance
Equipped with precision-machined disc and seat rings (2Cr13 for Q-series, stainless steel for carbon steel series), combined with quality asbestos rubber gaskets to ensure leak-free operation under demanding conditions.
Wide Pressure Range Compatibility
Covers PN16, PN25, and PN40 pressure classes in a single product series. Shell test pressures range from 2.4 MPa to 6.0 MPa, ensuring safe operation across low, medium, and high-pressure piping systems.
Compact Flanged Design
Small footprint from DN25 to DN50 with face-to-face lengths of 160–250 mm. Standard flanged connections ensure easy installation and removal from existing piping, with gasket sealing for reliable joint integrity.
Pressure Test Data
| Parameter | PN16 | PN25 | PN40 |
|---|---|---|---|
| Shell Test Pressure (Strength) | 2.4 MPa | 3.8 MPa | 6.0 MPa |
| Seal Test Pressure | 1.8 MPa | 2.8 MPa | 4.4 MPa |
| Working Temperature | ≤ 300°C (QT450) | ≤ 300°C (QT450) | ≤ 425°C (WCB) |
| Applicable Medium | Water, Steam, Petroleum, Oil Products | ||
Materials for Main Parts
| Model | Body, Bonnet | Disc, Seat Ring | Gasket |
|---|---|---|---|
| P48H-16Q / P48H-25Q | QT450 Ductile Cast Iron | 2Cr13 | Asbestos Rubber Sheet |
| P48H-16C / P48H-25 / P48H-40 | WCB Cast Steel | Stainless Steel | — |
Dimensions & Weight
| PN Rating | Dimension | DN25 | DN32 | DN40 | DN50 |
|---|---|---|---|---|---|
| PN16 PN25 PN40 |
L (mm) | 160 | 180 | 230 | 250 |
| H (mm) | 160 | 180 | 220 | 230 | |
| L0 (mm) | 180 | 200 | 244 | 244 | |
| Weight (kg) | 8.5 / 8.5 / 10 | 11 / 11 / 11.5 | 16.5 / 17 / 18 | 20 / 21 / 21.5 |
* Weight values shown as PN16 / PN25 / PN40 respectively per size.
Applicable Media
Steam
Petroleum
Oil Products
Condensate Systems
P48H Quick Draining Valve — Product Image
P48H Quick Draining Valve — Structure Diagram
Request a Quote
Need a P48H quick draining valve for your water, steam, or petroleum piping system? Gaoshan Valve offers PN16/PN25/PN40 ratings, DN25–DN50, with ductile cast iron or cast steel body options. Contact us today for competitive pricing, technical consultation, and fast delivery.