Stainless Steel H74 Non-Return Valve for Fluid

• Customization: Available
• Media: Water
• Temperature: Ordinary Temperature
• Model NO.: H74
• Material: Stainless Steel
• Connection Form: Wafer
• Structure: Swing
• Pressure: Normal
• Function: Wafer
• 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: Wafer
• Transport Package: Plywood Case
• Specification: 1/2"~12"
• Trademark: SAFETYSUS
• Origin: Wenzhou
• HS Code: 8481804090
• Production Capacity: 1000PCS/Week
• Package Size: 20.00cm * 30.00cm * 20.00cm
• Package Gross Weight: 1.000kg

Product Description

H74 Stainless Steel Wafer-Type Single-Disc Check Valve

Product Description

Discover the H74 stainless steel wafer-type single-disc check valve, masterfully engineered for ultra-compact efficiency! This valve is perfect for space-limited settings, offering a sleek structure, dependable performance, and diverse application potential. Dive into its comprehensive product description:

1. Structural and Design Features
- Ultra-Thin Profile: With a structural length just 1/4~1/8 of traditional flange check valves and reduced weight (about 1/4~1/20 of conventional valves), this design ensures effortless installation and maneuverability in confined areas.
- Single-Disc Swing-Type Design: Featuring a single disc integrated with an O-ring seal and a spring-assisted closure, this valve guarantees swift response, superior sealing, and rapid closure to significantly diminish water hammer effects.
- Flexible Installation: Engineered for both horizontal and vertical mounting without extra supports, it easily adapts to various pipeline configurations.


2. Technical Specifications
- Nominal Diameter: DN50~DN1000, accommodating an extensive array of pipeline sizes.
- Pressure Rating: Choose from PN10~PN40 (GB standard) or 150Lb~300Lb (ASME), withstanding a peak working pressure of 4.0MPa.
- Temperature Range:
- Hard-sealed valves: Withstand temperatures up to 400°C.
- Soft-sealed valves (e.g., rubber): Operate from -29°C to 250°C, contingent on sealing materials.
- Test Pressure:
- Shell test pressure: Rigorous testing at 1.5× nominal pressure ensures reliability.
- Seal test pressure: Precisely tested at 1.1× nominal pressure for uncompromised sealing.


3. Material and Sealing Performance
- Body Material: Crafted from stainless steel (304, 316, 316L), carbon steel (WCB), or copper, providing robust corrosion resistance across various media.
- Sealing Materials: Options include nitrile rubber (NBR), fluororubber (FKM), EPDM, or PTFE. Hard-sealed options employ stainless steel, ideal for handling aggressive media such as acids, alkalis, oils, and steam.


4. Applications
- Compatible Media: Successfully handles water, oils, steam, acidic and alkaline fluids (e.g., sulfuric acid, hydrochloric acid), and potent oxidizers (e.g., aqua regia).
- Typical Use Cases: Ideal for urban water supply/drainage systems, petrochemical facilities, metallurgy, firefighting systems, power stations, and pharmaceutical sectors requiring backflow prevention.


5. Key Advantages
- Low Flow Resistance: The smooth flow path ensures minimal pressure loss, aiding in energy-efficient valve operation.
- High Reliability: Its robust, compact construction minimizes impact during closure, thereby enhancing longevity and reducing maintenance needs.
- Customization Options: Available in numerous models (e.g., H74H, H74W, H74X) to meet a variety of sealing requisites and conform to international standards (GB, ASME).

Detailed Photos

 

Product Parameters

Working pressure	PN16~PN40 OR 150LB~300LB
Suitable medium	Water, gas, air and some corrosive liquid
Investment	Casting body and cap
Delivery time	Usual 15 days
Shipping port	NingBo,YiWu

Certifications

Company Profile

 

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.