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Stainless Steel Fitting
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Size: 1/4"to 4"(DN8-DN100) Full Bore
Type: Vertical Check Valve,Horizontal Check Valve,Wafer Check Valve;
End connection: Screwed Cap and Female Threaded(Inside Threaded) BSPT BSP NPT , DIN259/2999,ISO 228
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The LIANHE Stainless Steel Threaded Check Valve is designed to provide reliable backflow prevention and stable fluid control in industrial and commercial piping systems. The valve automatically opens when the upstream pressure reaches the required level and closes when the flow stops or reverses, helping protect pumps, pipelines, and other system equipment from reverse-flow damage.
Manufactured using precision investment casting and CNC machining, the valve provides good structural strength, accurate dimensions, dependable sealing, and consistent operating performance. Its compact threaded design allows it to be installed easily in restricted pipeline spaces while simplifying maintenance and replacement.
The full-bore flow passage helps reduce pressure loss and flow resistance, improving the operating efficiency of the piping system. Stainless steel construction also provides excellent resistance to corrosion, moisture, and a wide range of compatible fluids, making the valve suitable for demanding working environments.
Our stainless steel threaded check valves are available in different sizes, thread standards, materials, and structural configurations to meet various pipeline and engineering requirements.
Parameter | Specification |
|---|---|
Size Range | 1/4"–4" (DN8–DN100), Full Bore |
Valve Types | Vertical Check Valve, Horizontal Check Valve, Wafer Check Valve |
End Connections | Female Threaded Connection, available with BSPT, BSP, NPT, DIN 259/2999, and ISO 228 threads |
Manufacturing Process | Investment-Cast Valve Body with Precision CNC Machining |
Working Pressure | Up to 200 PSI |
Operating Principle | Automatic operation activated by fluid flow and pressure difference |
Material Grades | CF8, CF8M, SS304, SS316 stainless steel |
Structural Options | Swing-Type Disc, Integral Seat, and other model-specific sealing structures |
Applicable Media | Water, oil, gas, and other fluids compatible with stainless steel and the selected sealing material |
Brand | LIANHE |
Country of Origin | Wenzhou, China |
The exact operating pressure, temperature range, thread standard, sealing material, and installation direction should be confirmed according to the selected valve model and actual pipeline conditions.
This stainless steel check valve can be used in a wide variety of fluid-control and pipeline applications, including:
Building water supply and drainage systems
Industrial water-treatment equipment
Refrigeration and cooling systems
Fuel-gas and compatible gas pipelines
Food and beverage processing equipment
Medical and sanitary facility pipelines
Environmental protection equipment
Chemical-processing systems
Pump outlets and pressure-control systems
Oil, water, and general industrial fluid pipelines
Before installation, customers should confirm the compatibility of the valve-body material, sealing components, pressure rating, temperature range, and process medium.
Each valve is protected with a plastic bag to reduce exposure to moisture and dust. The products are then packed in reinforced cartons and consolidated in wooden cases or on export pallets when required.
This multilayer packaging method helps prevent impact, contamination, and surface damage during handling and international transportation. Customized packaging, private labels, barcodes, and customer logos can also be provided according to order requirements.
The standard payment term is a 30% T/T deposit, with the remaining 70% balance paid before shipment. L/C at sight may also be accepted for qualified orders. Western Union, PayPal, and other payment arrangements can be discussed according to the order value and cooperation conditions.
Available international trade terms include EXW, FOB, CFR, and CIF. Transportation can be arranged by sea, air, land, or international express service according to the order quantity, destination, delivery schedule, and customer preference.
Free samples may be provided for product testing, dimensional verification, and quality evaluation. The sample itself can be supplied free of charge, while the express delivery cost is normally paid by the recipient.
