Industrial SS304 H74 Wafer Type Singe Disc Check Valve with Soft-Sealing

• 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, a marvel of engineering crafted for environments where space is at a premium. Its design is both compact and efficient, offering unparalleled reliability and versatility for a myriad of applications. Dive into the detailed product description below:

1. Structural and Design Features
- Ultra-Thin Profile: With a structural length that is a mere 1/4~1/8 of traditional flange check valves, this valve is not only lighter, weighing just 1/4~1/20 of conventional counterparts, but also allows for seamless installation and handling in extremely confined spaces.
- Single-Disc Swing-Type Design: Featuring a single disc integrated with an O-ring seal and a spring-assisted closure mechanism, this design ensures rapid response, impeccable sealing, and swift closure to effectively mitigate water hammer effects.
- Flexible Installation: Adaptable for both horizontal and vertical mounting without the need for additional supports, this valve conforms to a variety of pipeline configurations with ease.


2. Technical Specifications
- Nominal Diameter: DN50~DN1000, offering compatibility with a comprehensive range of pipeline sizes.
- Pressure Rating: PN10~PN40 (GB standard) or 150Lb~300Lb (ASME), supporting a maximum working pressure of 4.0MPa for rigorous applications.
- Temperature Range:
- Hard-sealed valves: Efficiently operate up to 400°C.
- Soft-sealed valves (e.g., rubber): Operate between -29°C to 250°C, contingent upon the sealing material utilized.
- Test Pressure:
- Shell test pressure: 1.5 times the nominal pressure ensures robust durability.
- Seal test pressure: 1.1 times the nominal pressure for guaranteed sealing integrity.


3. Material and Sealing Performance
- Body Material: Crafted from stainless steel (304, 316, 316L), carbon steel (WCB), or copper, the valve resists corrosion across diverse media.
- Sealing Materials: Options include nitrile rubber (NBR), fluororubber (FKM), EPDM, or PTFE. Hard-sealed variants use stainless steel, granting resilience against aggressive substances like acids, alkalis, oils, and steam.


4. Applications
- Compatible Media: Tailored for use with water, oils, steam, acidic/alkaline fluids (such as sulfuric acid, hydrochloric acid), and potent oxidizers (like aqua regia).
- Typical Use Cases: Ideal for urban water supply/drainage, petrochemical facilities, metallurgy, firefighting systems, power stations, and pharmaceutical industries where backflow prevention is critical.


5. Key Advantages
- Low Flow Resistance: Its smooth flow path minimizes pressure drop during valve opening, optimizing energy efficiency.
- High Reliability: The robust, compact design reduces closing impact, ensuring an extended service life and minimal maintenance.
- Customization Options: Available in multiple models (e.g., H74H, H74W, H74X) to cater to various sealing needs and adhere 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.