Forged Steel A105 Weld Flange Swing Type Check Valve

• Media: Water,Gas,Oil etc
• Temperature: Ordinary Temperature
• Material: Forged Steel
• Model NO.: H41H
• Connection Form: Flange
• Structure: Swing
• Pressure: Ordinary Temperature
• Function: Backflow Prevention
• Sealing Form: /
• Flow Direction: Unidirection
• Standard: ANSI
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Size: 1/2"-2"
• Operation: Automatic
• MOQ: 1
• Transport Package: Wooden Case
• Specification: carbon steel stainless steell etc.
• Trademark: SWF VALVE
• Origin: China
• HS Code: 8481804090

Product Description

 

Product Description

Introduction:

Forged Steel Welded Flange Check Valve is a high-performance non-return valve featuring a forged steel body with welded flange construction, specifically engineered for high-pressure, high-temperature and severe service media applications. This design combines the superior strength of forged steel materials with the reliable connection of welded flanges, making it ideal for critical pipeline systems in petroleum, chemical, power generation and other industrial sectors.

 

Standard:

1. API 594 - Check Valves: Flanged, Lug, Wafer and Butt-welding Ends

2. ASME B16.34 - Valves - Flanged, Threaded and Welding End

3. ISO 17292 - Metal ball valves for petroleum, petrochemical and allied industries

4. GB/T 12236 - Forged steel check valves for petroleum and natural gas industries

Application:

• Oil & gas transmission pipelines

• Chemical processing systems

• Power plant boiler feedwater systems

• High-temperature steam pipelines

Key Advantages:

High Strength: Forged steel body resists high-pressure impact, offering greater reliability than cast valves.
Zero Leakage: Precision-machined sealing surfaces ensure long-term sealing performance.
Corrosion Resistance: Optional stainless steel (SS316), alloy steel (Inconel) or special coatings available.
Low Flow Resistance: Full bore or reduced bore design optimizes fluid efficiency.
Fire Safety: Complies with API 607 standard, maintaining sealing integrity during fire exposure.
Easy Maintenance: No external actuating mechanism, stable structure with extended service life.
 

Technical Specifications:

• Body Material: Forged steel (A105, F22, F304/F316, etc.)

• Flange Design: Weld-flange

• Structural Strength: pressure rating up to ANSI Class 900~2500

 

Product Parameters

Parameter

Size	DN15 - DN50 (1/2″ - 2″)
Pressure	Class 150 - Class 1500
Temperature	-196°C to +550°C
Material	Carbon Steel, Stainless Steel, Alloy Steel, etc.
Media	Water, Oil, Gas, Steam, Corrosive Media, etc.
Operation	Automatic

Detailed Photos