DN25-PN25 Close Die Forged Plunger Valves

TECHNICAL DATA SHEET

Product Name: DN25 PN25 Close Die Forged Plunger Valve
Model/Specification: DN25-PN25-PLUNGER
Valve Type: Plunger Valve (Piston-Type Stop Valve)
Connection Type: Flanged (RF) / Threaded (NPT) / Socket Weld / Butt Weld User specified

1. Basic Design Parameters

2. Technical Specifications

3. Material of Construction (Recommended – Carbon Steel)

*For Stainless Steel version (A182 F304/F316), bolting changes to B8/8, body/bonnet to SS.*

4. Main Dimensions & Connection Details

*Note: Dimensions for Flanged Ends (RF) according to EN 1092-1 and EN 558-1. Other end connections vary.*

4.1 End-to-End Dimensions (Face-to-Face)

4.2 Flange Details (Per EN 1092-1 – Type 11 / PN25)

4.3 End Preparation (Alternative Connections)

5. Pressure-Temperature Rating

*Material Group: Carbon Steel (A105) or Stainless Steel (F304/F316) – Sealing rings limit temperature.*

Note: With PTFE rings, max temperature 200°C. With graphite rings, max 450°C (but PN rating derated at higher temps).

6. Test Pressure (EN 12266-1 / API 598)

7. Features & Applications

• Key Features:
• Zero Leakage Design: Elastic sealing rings compressed by the polished plunger ensure bubble-tight shut-off, exceeding metal-seated valve performance .
• Close Die Forged Body: Provides superior strength, uniform grain flow, and absence of porosity – ideal for demanding service .
• Self-Adjusting Seals: The sealing rings compensate for wear and thermal variations, maintaining a tight seal over extended life .
• Easy Maintenance: Sealing rings can be replaced without removing the valve body from the pipeline (with top-entry bonnet) .
• Excellent Throttling Capability: The plunger design allows for smooth flow control with minimal erosion .
• Double Seal Protection: Two independent sealing rings provide redundancy .
• Corrosion & Wear Resistance: Hardened stainless steel plunger resists scratching and corrosion .
• Backseat Design: Protects stem packing when valve fully open .
• OS&Y Design: Visual indication of valve position .
• Main Applications:
• Steam Systems: Steam distribution, boiler blowdown, tracer lines .
• Thermal Oil / Heat Transfer Fluids: High-temperature liquid services .
• Chemical Processing: Handling corrosive fluids with PTFE sealing rings .
• Water & Wastewater: Isolation and control where zero leakage is required .
• Oil & Gas: Light hydrocarbon services .
• General Industrial Piping: Reliable shut-off for gases and liquids .

Disclaimer: The above data is prepared based on common industry standards (DIN/EN) for forged plunger valves. Specific dimensions, materials, and pressure ratings may vary by manufacturer. The final technical agreement and certified drawings shall prevail.

GUATANTEE:

SAVVY VALVES is committed to delivering exceptional product quality and worry-free after-sales service. Our valves are guaranteed to provide a minimum service life of 12 months, during which we will supply all necessary spare parts and detailed maintenance instructions free of charge. Within the warranty period, if any non-human-induced damage occurs, we will replace components at no cost and provide professional technical support. After the warranty expires, customers only need to pay for the cost of spare parts, while still benefiting from discounted maintenance services. Our goal is to help clients reduce operational costs and enhance production efficiency through reliable quality and comprehensive after-sales support. Whether for technical inquiries or maintenance needs, our expert team will respond promptly to ensure your valve system maintains optimal performance at all times.