High-Quality Steel 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 compact spaces. This valve boasts a streamlined structure, delivering reliable performance across a myriad of applications. Dive into the comprehensive product details below:

1. Structural and Design Features
- Ultra-Thin Profile: With a structural length that is just 1/4~1/8 of traditional flange check valves, and weighing a mere 1/4~1/20 compared to conventional valves, this design ensures effortless installation and maneuverability in confined spaces.
- Single-Disc Swing-Type Design: Features a single disc with an integrated O-ring seal and a spring-assisted closure. This guarantees rapid response, superior sealing, and swift closure to significantly reduce water hammer effects.
- Flexible Installation: Easily adaptable for horizontal or vertical mounting, this valve requires no additional supports, making it perfect for various pipeline configurations.


2. Technical Specifications
- Nominal Diameter: Ranges from DN50 to DN1000, encompassing a broad spectrum of pipeline sizes.
- Pressure Rating: Available in PN10~PN40 (GB standard) or 150Lb~300Lb (ASME), capable of handling a maximum working pressure of 4.0MPa.
- Temperature Range:
- Hard-sealed valves: Capable of withstanding temperatures up to 400°C.
- Soft-sealed valves (e.g., rubber): Designed for temperatures ranging from -29°C to 250°C, depending on the sealing material employed.
- Test Pressure:
- Shell test pressure: Rigorously tested at 1.5× the nominal pressure for assurance.
- Seal test pressure: Verified at 1.1× the nominal pressure, ensuring steadfast sealing integrity.


3. Material and Sealing Performance
- Body Material: Choose from stainless steel (304, 316, 316L), carbon steel (WCB), or copper, offering exceptional corrosion resistance for a variety of media.
- Sealing Materials: Options include nitrile rubber (NBR), fluororubber (FKM), EPDM, or PTFE. For aggressive media like acids, alkalis, oils, and steam, hard-sealed variants with stainless steel are ideal.


4. Applications
- Compatible Media: Perfectly suited for 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 plants, metallurgy, firefighting systems, power stations, and pharmaceutical sectors requiring effective backflow prevention.


5. Key Advantages
- Low Flow Resistance: Designed for a smooth flow passage to ensure minimal pressure drop when the valve is open, thereby reducing energy consumption.
- High Reliability: Its robust and compact design minimizes the impact during closure, guaranteeing a long service life with low maintenance needs.
- Customization Options: A variety of models including H74H, H74W, and H74X cater to diverse sealing requirements and meet 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.