Industrial SS304 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, an ingeniously compact solution engineered specifically for environments with limited space. This valve boasts a sleek structure, trustworthy performance, and a multitude of applications. Dive into the comprehensive product description below:

1. Structural and Design Features
- Ultra-Thin Profile: This valve's structural length is merely 1/4 to 1/8 that of traditional flange check valves. It features a significantly reduced weight (approximately 1/4 to 1/20 of conventional valves), making installation and handling in confined spaces remarkably straightforward.
- Single-Disc Swing-Type Design: Outfitted with a single disc integrated with an O-ring seal and a spring-assisted closure mechanism, this design promises quick response, superior sealing, and swift closure to significantly reduce water hammer effects.
- Flexible Installation: Ideal for horizontal or vertical mounting without the need for extra supports, this valve adapts effortlessly to various pipeline configurations.


2. Technical Specifications
- Nominal Diameter: Ranges from DN50 to DN1000, accommodating a vast spectrum of pipeline sizes.
- Pressure Rating: Options include PN10 to PN40 (GB standard) or 150Lb to 300Lb (ASME), with an impressive maximum working pressure of 4.0MPa.
- Temperature Range:
- Hard-sealed valves: Withstand temperatures up to an impressive 400°C.
- Soft-sealed valves (e.g., rubber): Operating range from -29°C to 250°C, varying with the sealing material used.
- Test Pressure:
- Shell test pressure: 1.5 times the nominal pressure, ensuring durability.
- Seal test pressure: 1.1 times the nominal pressure, guaranteeing reliable sealing.


3. Material and Sealing Performance
- Body Material: Choose from stainless steel (304, 316, 316L), carbon steel (WCB), or copper, all promising exceptional corrosion resistance across diverse 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 utilize stainless steel.


4. Applications
- Compatible Media: Designed for water, oils, steam, acidic/alkaline fluids (such as sulfuric and hydrochloric acids), and even strong oxidizers like aqua regia.
- Typical Use Cases: Perfect for urban water supply and drainage systems, petrochemical plants, metallurgy, firefighting systems, power stations, and pharmaceutical industries demanding reliable backflow prevention.


5. Key Advantages
- Low Flow Resistance: The smooth flow passage minimizes pressure drop during valve opening, which effectively reduces energy consumption.
- High Reliability: Its robust, compact design lessens closing impact, ensuring an extended service life coupled with minimal maintenance requirements.
- Customization Options: Available in various models (e.g., H74H, H74W, H74X) to satisfy different sealing needs 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.