2PC Threaded Check Valve Stainless Steel Non Return Valve Female Thread One Way Valve

The Two-Piece Threaded Check Valve is a reliable one-way flow control valve designed to prevent backflow and protect pipeline systems. Featuring a two-piece body structure and threaded connection design, it provides easy installation, compact structure, excellent sealing performance, and stable operation in various industrial piping applications.

Inquire Now 2PC Threaded Check Valve Stainless Steel Non Return Valve Female Thread One Way Valve

Next Products 2PC Threaded Check Valve Stainless Steel Non Return Valve Female Thread One Way Valve

Two-piece threaded check valve Parameter Specifications Industry Applications

Two-piece threaded check valve

Manufactured with high-quality stainless steel, brass, carbon steel, and other durable materials, the valve offers excellent corrosion resistance, pressure resistance, and long service life. The internal check mechanism automatically opens under forward flow pressure and closes quickly when reverse flow occurs, effectively preventing media backflow and protecting pumps, compressors, and other equipment.

We provide professional OEM manufacturing and customization services, including customized valve sizes, body materials, thread standards, pressure ratings, sealing materials, internal structure designs, surface treatments, logo marking, packaging solutions, and special application requirements. Our production process follows strict quality management systems with complete valve industry certifications, inspection procedures, and testing capabilities to ensure compliance with international standards and customer project requirements.

Parameter Specifications

Parameter	Specification
Product Name	Two-Piece Threaded Check Valve
Valve Type	Threaded Check Valve / Non-Return Valve
Body Structure	Two-Piece Split Body Design
Connection Type	Threaded Connection
Thread Standard	NPT / BSP / BSPT / G Thread
Body Material	Stainless Steel 304/316, Brass, Carbon Steel, Alloy Materials
Disc Material	Stainless Steel / Brass / Customized Materials
Seat Material	PTFE, NBR, EPDM, Metal Seal
Nominal Size	DN8-DN100 / 1/4"-4"
Pressure Rating	PN1.6-PN6.4 MPa / Class 150-Class 600
Working Temperature	-20°C to 200°C (Customized according to materials)
Applicable Medium	Water, Oil, Gas, Air, Steam, Chemical Fluids
Valve Operation	Automatic Flow Control
Flow Direction	One-Way Flow
Installation Position	Horizontal / Vertical Installation (According to Model Design)
Sealing Type	Soft Seal / Metal Seal
Valve Structure	Swing Type / Spring Loaded Type Check Mechanism
Opening Pressure	Low Cracking Pressure Design Available
Anti-Backflow Function	Automatic Prevention of Reverse Flow
Design Standard	ANSI, API, DIN, GB, JIS Standards Available
Testing Standard	API 598 / EN 12266 Pressure Testing
OEM Capability	Customized Design, Materials, Dimensions, Branding and Packaging
Certification	ISO, CE, API, PED and Other Valve Industry Certifications Available

Industry Applications

The Two-Piece Threaded Check Valve is widely used in industries requiring reliable backflow prevention and pipeline protection, including:

Water Supply Systems – Used to prevent reverse flow in water pipelines and pumping systems.
Water Treatment Industry – Applied in filtration systems, wastewater treatment, and purification equipment.
Oil & Gas Industry – Used in fuel pipelines, gas systems, and process equipment protection.
Chemical Industry – Suitable for preventing reverse flow of chemical liquids and process media.
HVAC Systems – Applied in heating, cooling, and circulation systems.
Industrial Machinery – Used to protect pumps, compressors, and hydraulic equipment.
Power Generation Industry – Applied in cooling water systems, steam pipelines, and auxiliary equipment.
Food & Beverage Industry – Suitable for fluid handling systems requiring reliable one-way control.
Pharmaceutical Industry – Used in clean process pipelines and precision fluid systems.
Agricultural Irrigation Systems – Provides effective backflow protection for irrigation networks.

CUSTOMIZED SERVICE Customized Product

Material customization plan

Customized 316L stainless steel valves forGerman chemical enterprises. Resistant tostrong corrosion, suitable for their acidicmedium transportation systems, with aservice life extended to over 8 years.

Structural optimization design

For the Saudi desert project, the valve stemsealing structure was changed to a doublebellows design to address the leakage issuein the high-temperature and dustyenvironment, and it was highly recognizedby the customers.

Interface standard adaptation

Customized API 600 standard valves for acertain company in the United States. Theflange size is fully compatible with ANSIB16.5, ensuring zero error during on-siteinstallation and reducing the constructionperiod by 30%.