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, a marvel of engineering crafted for compact spaces. This ultra-sleek valve boasts a graceful yet robust design, offering unparalleled reliability across a multitude of applications. Dive into the comprehensive details below:

1. Structural and Design Features
- Ultra-Thin Profile: With a structural length reduced to a mere 1/4~1/8 of traditional flange check valves, and weight diminished to just 1/4~1/20 of conventional counterparts, this valve ensures effortless installation and maneuverability, even in the most restricted of spaces.
- Single-Disc Swing-Type Design: Featuring a single disc seamlessly integrated with an O-ring seal, complemented by a spring-assisted closure, it guarantees swift responsiveness, superb sealing, and prompt closure to effectively diminish water hammer effects.
- Flexible Installation: Designed for universal adaptability, it can be mounted horizontally or vertically without the need for additional support, conforming effortlessly to various pipeline configurations.


2. Technical Specifications
- Nominal Diameter: Spanning DN50~DN1000, it caters to an expansive array of pipeline dimensions.
- Pressure Rating: Accommodates PN10~PN40 (GB standard) or 150Lb~300Lb (ASME), withstanding a formidable maximum working pressure of 4.0MPa.
- Temperature Range:
- Hard-sealed valves: Endures temperatures up to an impressive 400°C.
- Soft-sealed valves (e.g., rubber): Capable of withstanding a range from -29°C to 250°C, contingent on sealing material.
- Test Pressure:
- Shell test pressure: Conducted at 1.5× the nominal pressure to ensure integrity.
- Seal test pressure: Validated at 1.1× the nominal pressure for superior sealing performance.


3. Material and Sealing Performance
- Body Material: Crafted from premium stainless steel (304, 316, 316L), carbon steel (WCB), or copper, guaranteeing exceptional corrosion resistance across varied media.
- Sealing Materials: Choose from nitrile rubber (NBR), fluororubber (FKM), EPDM, or PTFE. Hard-sealed options employ stainless steel, perfect for challenging media such as acids, alkalis, oils, and steam.


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


5. Key Advantages
- Low Flow Resistance: The valve's smooth passage allows for minimal pressure loss during opening, significantly reducing energy consumption.
- High Reliability: Its durable and compact design minimizes impact upon closure, ensuring an extended lifespan and minimal maintenance requirements.
- Customization Options: With a diverse range of models (e.g., H74H, H74W, H74X), it meets various sealing needs and complies with 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.