Stainless Steel One-Way Valve, Thread Type

• Customization: Available
• Media: Water
• Temperature: Ordinary Temperature
• Model NO.: check valve
• Material: Stainless Steel
• Connection Form: Thread
• Structure: Swing
• Pressure: Normal
• Function: Swing
• Sealing Form: Soft
• Flow Direction: Unidirection
• Standard: GB
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Applying Mediem: Water Oil Gas
• MOQ: 1 PC
• Shipment Time: 15 Days
• Connection Ends: Bsp/BSPT/NPT
• Transport Package: Carton, Plywood Case
• Specification: 1/4"~6"
• Trademark: SAFETYSUS
• Origin: Wenzhou
• HS Code: 8481804090
• Production Capacity: 1000PCS/Week
• Package Size: 1.00cm * 1.00cm * 1.00cm
• Package Gross Weight: 1.000kg

Product Description

Industrial-Grade Stainless Steel Threaded Check Valve

Product Description

Product Overview
Our industrial-grade stainless steel threaded check valve is a premium automatic non-return valve designed for liquid and gas pipeline systems. Manufactured from high-quality stainless steel, it offers exceptional corrosion resistance, high-pressure tolerance, and thermal stability - making it ideal for demanding applications in chemical processing, petroleum, water treatment, and HVAC systems. The valve ensures unidirectional flow to protect critical equipment from backflow damage.

Construction & Design
1. Materials
   - Body/Bonnet: 304/316 stainless steel for superior corrosion resistance
   - Disc: Stainless steel or reinforced engineering polymer (POM) for durability
   - Seals: EPDM, NBR or FKM options for various media compatibility
   - Connection: Threaded (G/NPT/BSP standards) for secure installation

2. Key Features
   - Spring-assisted closure: Available in select models for rapid response and water hammer prevention
   - Low-pressure drop: Optimized flow path design minimizes system resistance
   - Compact footprint: Space-saving design for constrained installations
   - Maintenance-free operation: Self-actuating mechanism requires no external control


Operating Principle
The valve operates on differential pressure - fluid pressure lifts the disc to allow forward flow, while reverse flow automatically closes the disc via gravity, spring force, or backpressure to prevent backflow.


Technical Specifications
- Media Compatibility: Water, oils, steam, gases, and mild corrosive fluids
- Pressure Rating: 0.6-4.0 MPa (higher ratings available)
- Temperature Range: -20°C to 180°C (dependent on seal material)
- Connection Sizes: DN15-DN100 (½"-4"), custom sizes upon request
- Cracking Pressure: 0.05-0.1 MPa (adjustable in spring-assisted models)


Typical Applications 
-Petrochemical: Pipeline transport, tank inlets/outlets
-Water Treatment: Pump discharges, filtration systems, desalination
-HVAC: Boiler feedwater, cooling circuits
-Food/Pharma: Sanitary pipelines (GMP-compliant versions available)
-Industrial Machinery: Compressors, hydraulic systems, fire protection


Product Advantages
1.Superior Reliability: Corrosion-resistant construction ensures leak-free performance
2.Reduced Maintenance: Self-operating design minimizes service requirements
3.Broad Compatibility: Suitable for diverse media and piping standards
4.System Protection: Spring-assisted models mitigate hydraulic shock


Installation & Maintenance  
-Orientation: Install with flow arrow matching media direction
-Maintenance: Periodic inspection of disc movement and seal integrity recommended
 

Detailed Photos

 

 

Product Parameters

Working pressure	PN16
Suitable medium	Water, gas, air and some corrosive liquid
Investment	Casting body and cap
Delivery time	Usual 15 days
Shipping port	NingBo,YiWu

Company Profile

Certifications

FAQ

Q:How do you pack?
A:Plastic bags-------(Paper boxes)-------Cartons-------Plywood cases

Q:How long is the quality guarantee period?
A:We supply 6 to 12 months for quality guarantee according to customers' using frequency.

Q:How can you guarantee the quality of products?
A:First of all, we have the numerical control device to manufacture products accurately. Then our quality inspectors will test products one by one to make sure every flange or fitting we sell is qualified.

Q:How can I check your factory situation while it's difficult for me to come to China.
A:We have photos and videos on our website, It shows every step of the manufacturing.
Alternatively, I can take videos or photos of our factory and send them to you.

Q:What is your lead time?
A:It's around 15 days normally. If we have the products in stock, it will be about 5days.

Q:Can you print our Logo on the valves/Fittings?
A:Yes, we can totally produce products according to your this kind special request, even manufacture it based on your drawing

Q:Are samples available to be sent with free?
A:It depends on what product you need. There are hundreds of products we sell. You can contact us for particular answer.

Q:Do you have a minimum quantity of the products?
A:No, we will build business with you with even 1pc. We believe this cooperation will be a long-term relationship for our high quality, competitive price and good after-sale service.

Q:Where are the main markets for your products?
A:We hope to make business with companies from all over the world. And for now, our flanges and fittings have been exported to especially in North America, South America, South Asia, Europe and Middle East.

Q:Are you a factory or trading company?
A:We are a factory specialized in manufacturing flange and fitting over 10 years.