| Swing Check Valve Class200 Screwed End |
| Investment casting Body and Cap Test and inspection:API598 |
| Swing Type Disc,Integral seats |
| Size:1/4 to 3 inches |
| Thread Ends:ANSI B1.20.1(NPT)BS7/1(DIN2999),ISO7/1 (ISO22B) Materials:CF8M,CF8 |
Swing Check Valve Class 200 Screwed End
The Swing Check Valve Class 200 Screwed End is designed to automatically prevent backflow in industrial pipeline systems. The valve adopts a swing-type disc structure, allowing fluid to flow in one direction while automatically closing when reverse flow occurs.
Manufactured with a precision investment casting body and cap, this threaded check valve provides excellent mechanical strength, corrosion resistance, and long-term reliability in demanding industrial environments. The integral seat design ensures stable sealing performance and reduces leakage risks during operation.
Tested according to API598 inspection standards, the valve ensures reliable pressure integrity and leakage performance.
With a Class 200 pressure rating, this swing check valve is widely used in oil and gas pipelines, chemical processing systems, water treatment facilities, and general industrial fluid control systems.
Supplied by SHAANXI GOLD-STONE I/E CO., LTD., the valve meets international industrial standards and is suitable for global pipeline applications.
Key Features
Swing Type Disc
The swing check mechanism allows automatic opening when fluid flows forward and closes quickly to prevent reverse flow.
Integral Seat Design
The valve seat is integrated into the body, providing reliable sealing performance and longer service life.
Investment Casting Construction
The investment casting body and cap ensure precise dimensions, high structural strength, and corrosion resistance.
Reliable Backflow Prevention
Designed to protect pumps, compressors, and pipeline systems by preventing reverse flow.
API598 Testing
Each valve can be tested according to API598 standards to ensure quality and performance.
Technical Specifications
Valve Type: Swing Check Valve
Pressure Class: Class 200
Connection Type: Screwed / Threaded End
Size Range: 1/4″ – 3″
Body Construction
Investment Casting Body and Cap
Disc Type
Swing Type Disc
Seat Type
Integral Seat
Thread Connection Standards
ANSI B1.20.1 (NPT)
BS 21 / DIN 2999
ISO 7-1
ISO 228
Testing and Inspection
API598
Available Materials
The valve can be manufactured using corrosion-resistant stainless steel materials:
CF8 (Stainless Steel 304) – General industrial use
CF8M (Stainless Steel 316) – Enhanced corrosion resistance for chemical environments
Typical Application Industries
Oil and Gas Pipelines
Prevents reverse flow in pipeline transport systems.
Chemical Processing Plants
Used for fluid control and pipeline protection in chemical production lines.
Water Treatment Systems
Installed in water supply and wastewater treatment pipelines.
Industrial Manufacturing Systems
Protects pumps and equipment from backflow damage.
Frequently Asked Questions (FAQ)
What is a swing check valve?
A swing check valve uses a hinged disc that swings open when fluid flows forward and automatically closes to prevent reverse flow.
What is the function of a check valve?
A check valve prevents backflow in pipelines, protecting pumps, compressors, and other equipment.
What industries commonly use swing check valves?
They are widely used in oil and gas pipelines, chemical processing plants, water treatment facilities, and industrial fluid systems.
What testing standard is used for this valve?
The valve can be tested according to API598, which verifies pressure integrity and leakage performance.
What materials are available for this valve?
Common materials include CF8 stainless steel and CF8M stainless steel, which provide corrosion resistance and durability.
Supplier
SHAANXI GOLD-STONE I/E CO., LTD. supplies industrial valves and pipeline components for global markets. Our products are widely used in energy, petrochemical, water treatment, and industrial pipeline systems, providing reliable performance and long service life.