High-Quality SS316L H74 Wafer Type Singe Disc Check Valve with Hard-Sealed

• 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, a masterpiece of engineering crafted for ultra-compact environments. Its streamlined design and versatile functionality deliver performance you can rely on. Discover the details below:

1. Structural and Design Features
- Ultra-Thin Profile: With a structural length merely 1/4~1/8 of traditional flange check valves, the H74 is significantly lighter, weighing only 1/4~1/20 of conventional models. It's a breeze to install, even in the tightest spots.
- Single-Disc Swing-Type Design: Boasting a single disc with an O-ring seal and a spring-assisted closure, this valve ensures a rapid response. Its swift closing action effectively reduces the impact of water hammer, providing an excellent seal.
- Flexible Installation: Whether horizontal or vertical, the H74 adapts flawlessly without the need for extra supports, accommodating a wide variety of pipeline configurations.


2. Technical Specifications
- Nominal Diameter: Spanning DN50~DN1000, it covers an extensive array of pipeline dimensions.
- Pressure Rating: With a range from PN10~PN40 (GB standard) or 150Lb~300Lb (ASME), the valve can handle up to 4.0MPa of working pressure.
- Temperature Range:
- Hard-sealed valves: Endures temperatures soaring up to 400°C.
- Soft-sealed valves (e.g., rubber): Operates efficiently from -29°C to 250°C, contingent on the sealing material.
- Test Pressure:
- Shell test pressure: Rigorously tested at 1.5× nominal pressure.
- Seal test pressure: Verified at 1.1× nominal pressure.


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


4. Applications
- Compatible Media: Suitable for water, oils, steam, acidic/alkaline fluids like sulfuric and hydrochloric acids, and strong oxidizers such as aqua regia.
- Typical Use Cases: Ideal for urban water supply/drainage, petrochemical industries, metallurgy, firefighting systems, power stations, and pharmaceutical sectors needing foolproof backflow prevention.


5. Key Advantages
- Low Flow Resistance: A streamlined flow passage minimizes pressure drop during valve opening, enhancing energy efficiency.
- High Reliability: Its sturdy, compact design minimizes closing impact, ensuring durability, prolonged service life, and minimal maintenance.
- Customization Options: Available in multiple models (H74H, H74W, H74X) to meet diverse 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.