Swing Check Valve Threaded Ends Type Descriptions
Swing check valve threaded ends type is also called one-way valve or non-return valve, which is used to prevent of mediums back flow in the pipeline. The disc of the check valve is action depending on the mediums itself flow pressure, so the check valve is belonging to automatic valve types. Because the swing check valve is only allowed the mediums to flow in one direction, we should note the arrowhead on the check valve when mount it in horizontal position. Swing check valves threaded ends type is widely used in series of industries, such as water supply, water treatment and chemical industries, etc. Flowspec Luokai can manufacture the swing check valve threaded ends type in accordance with ASME b16.34 with sizes of 1/2″ to 2″. Welcome to contact us for detailed information and best quotes if you have any questions or inquiries.
1. FEATURES
- Standard swing type disc
- Full bore
- BC, bolted cover
- Non-penetrate disc shaft
- Horizontal or vertical service
- Threaded ends
3. STANDARDS
- Design & manufacturing: ASME b16.34
- Face to face: manufacturer’s
- Flanged ends: G, NPT, PT, Rp, Rc (ASME B1.20.1, BS21/2799, DIN2999/259, ISO228-1, JIS B 0203, ISO7/1)
- Inspection & testing: API598
2. TECHNICAL SPECIFICATIONS
- Pressure rating: 200psi
- Size: 1/2″ ~ 2″ (DN15~50mm)
- Materials: stainless steel 304 (A351 CF8), stainless steel 316 (A351 CF8M)
- Applicable medium: water, sea water, oil, gas, corrosive liquids
- Applicable temperature: -29℃~+300℃ (higher temperature is available upon request)
4. APPLICATIONS
- Petroleum
- Chemical industry
- Pharmacy
- Chemical fertilizer
- Power plant
- Textile
- Printing & dyeing
- Water supply
Why Choose Flowspec Luokai
45+ Years Experience
Founded in 1978, manufacturing industrial valves for over four decades with proven reliability worldwide.
Global Certifications
ISO 9001, CE/PED, WRAS, FM, UL, API approved — compliant with international quality and safety standards.
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Flexible design and manufacturing per your specifications — material, size, pressure, actuation tailored to project needs.
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Exported to 5 continents — North & South America, Europe, Middle East, Southeast Asia, and Africa.
Our Service Promise
Strict Quality Control
Every valve tested to API 598, EN 12266 before shipment
Timely Global Delivery
Reliable logistics to 5 continents with secure packaging
OEM & Custom Design
Tailored material, size, pressure and actuation to your specs
Dedicated After-Sales
Technical support and service throughout product lifecycle


