Stainless Steel Threaded Check Valve

Product Description

The LIANHE Stainless Steel Threaded Check Valve automatically prevents reverse flow in compatible water, oil, gas, and industrial piping systems.

Its investment-cast stainless steel body provides corrosion resistance and mechanical strength, while precision-machined connections support reliable installation.

Technical Specifications

Size Range: 1/4"–4" (DN8–DN100), Full Bore

Available Types:

• Vertical Check Valve

• Horizontal Check Valve

• Swing Check Valve

• Wafer Check Valve

Connection Options:

• Female Thread: BSPT, BSP, NPT, DIN 259/2999, and ISO 228

• Wafer Connection for applicable models

Manufacturing Process: Investment Casting and Precision CNC Machining

Working Pressure: Up to 200 PSI

Operating Principle: Automatic, activated by flow direction and pressure difference

Available Materials: CF8, CF8M, SS304, and SS316

Structural Features: Swing-Type Disc and Integral Seat for applicable models

Applicable Media: Water, oil, gas, and other compatible fluids

Packaging: Plastic Bags, Export Cartons, Wooden Cases, or Pallets

Certificates: ISO 9001:2015, GB/T 19001-2016, and CE documentation for applicable products

Brand: LIANHE

HS Code: 8421211000

Place of Origin: Wenzhou, Zhejiang, China

Product Advantages

1. Automatically prevents reverse flow

2. Good corrosion resistance

3. Compact and simple construction

4. Convenient installation and maintenance

5. Reliable sealing when correctly selected and installed

6. Long service life under suitable conditions

7. Multiple structures and connection options available

Applications

Suitable for compatible applications in:

• Construction piping systems

• Refrigeration equipment

• Fuel-gas systems

• Food and medical equipment

• Chemical-processing facilities

• Environmental protection equipment

• Water-treatment systems

The installation direction, opening pressure, material, connection type, working pressure, temperature, and medium compatibility should be confirmed before ordering.

Inspection Documents

Available documents include:

• EN 10204 3.1 Material Test Certificate

• Raw-Material Inspection Certificate

• Hydraulic Test Report

• Thread Inspection Report for threaded models

• Radiographic Testing Report, when applicable

• Third-Party Inspection Report

Commercial Terms

Payment Terms: 30% deposit and 70% balance before delivery. L/C at sight, T/T, Western Union, PayPal, and other agreed methods are available.

Free Samples: Available for selected standard products; express charges are normally paid by the recipient.

Manufacturer: LIANHE
Place of Origin: Wenzhou, Zhejiang, China