High-Quality Stainless 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

Introducing the H74 stainless steel wafer-type single-disc check valve, the epitome of ultra-compact engineering, masterfully crafted for seamless integration within spatially limited environments. This valve boasts a streamlined design, assured performance, and a multitude of adaptable applications. Discover the comprehensive product details below:

1. Structural and Design Features
- Ultra-Thin Profile: With its diminutive structural length-only 1/4 to 1/8 of traditional flange check valves-and a feather-light weight (approximately a mere 1/4 to 1/20 of conventional valves), this design ensures effortless installation and handling, even in the most confined spaces.
- Single-Disc Swing-Type Design: Featuring an integrated single disc with O-ring seal and a spring-assisted closure mechanism, this design guarantees rapid response, impeccable sealing, and swift closure to significantly dampen water hammer effects.
- Flexible Installation: Designed for versatile horizontal or vertical mounting, this valve requires no additional support, adapting effortlessly to a variety of pipeline configurations.


2. Technical Specifications
- Nominal Diameter: DN50~DN1000, adeptly accommodating a broad spectrum of pipeline dimensions.
- Pressure Rating: PN10~PN40 (GB standard) or 150Lb~300Lb (ASME), withstanding a robust maximum working pressure of 4.0MPa.
- Temperature Range:
- Hard-sealed valves: Tolerates temperatures soaring up to 400°C.
- Soft-sealed valves (e.g., rubber): Comfortably ranges from -29°C to 250°C, contingent on sealing material.
- Test Pressure:
- Shell test pressure: Meticulously tested at 1.5× the nominal pressure to ensure resilience.
- Seal test pressure: Stringently tested at 1.1× the nominal pressure for guaranteed reliability.


3. Material and Sealing Performance
- Body Material: Choose from stainless steel (304, 316, 316L), carbon steel (WCB), or copper, each ensuring superior corrosion resistance across a diverse range of media.
- Sealing Materials: Options include nitrile rubber (NBR), fluororubber (FKM), EPDM, or PTFE. Hard-sealed variants are equipped with stainless steel, making them apt for aggressive media such as acids, alkalis, oils, and steam.


4. Applications
- Compatible Media: This valve expertly handles water, oils, steam, acidic/alkaline fluids (e.g., sulfuric acid, hydrochloric acid), and strong oxidizers (e.g., aqua regia).
- Typical Use Cases: Ideal for urban water supply/drainage systems, petrochemical plants, metallurgy, firefighting systems, power stations, and pharmaceutical industries where backflow prevention is critical.


5. Key Advantages
- Low Flow Resistance: The smooth flow passage ensures minimal pressure drop for valve opening, significantly curbing energy consumption.
- High Reliability: Its robust, compact design minimizes closing impact, ensuring an extended service life with minimal maintenance.
- Customization Options: With multiple models available (e.g., H74H, H74W, H74X), cater to diverse sealing requirements and 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.