GB Double-Press Coupling 304/316L Stainless Steel for Water and Gas Systems

Name: "GB Double-Press Coupling 304/316L Stainless Steel for Water and Gas Systems"
Rating: 5 (194 reviews)

SKU: 6390869754

Model: GB Series press Fittings

WENZHOU ZHENGXIN PIPE FITTINGS CO., LTD

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Product Details

GB Double-Press Coupling

gb-double-press-coupling

The GB Double-Press Coupling is a press-fit pipe fitting designed for fast, leak-proof connections in water and gas supply systems. Manufactured from 304 or 316L stainless steel, it ensures durability and corrosion resistance. With a working pressure of 1.6MPa and temperature range of -20°C to 95°C, it suits most residential and public constructions. The food-grade EPDM sealing ring guarantees safe, hygienic operation for potable water.

Key Features

Fast installation without soldering or welding, reducing labor time
Leak-proof performance with double-press design
Corrosion-resistant 304/316L stainless steel construction
Food-grade EPDM seal for potable water safety (FDA certified)
CE certified and compliant with EN 10312 standard
Maintenance-free with a service life matching building lifespan

Technical Specifications

Material	SS304 (06Cr19Ni10) or SS316L (022Cr17Ni12Mo2)
Pipe O.D. Range	DN15 (φ16) – DN100 (φ108)
Working Pressure	1.6 MPa (cold water), 1.0 MPa (hot water ≤95°C)
Working Temperature	-20°C ~ 95°C (ordinary)
Sealing Material	Food-grade silicone (FDA) / EPDM
Standards	CE, EN 10312

Models and Options

304 stainless steel coupling
316L stainless steel coupling for higher corrosion resistance
Available sizes: DN15 to DN100
Optional high-temperature resistant model (up to 120°C with replacement seal)

Materials and Structure

The coupling is made from 304 or 316L stainless steel, chosen for excellent corrosion resistance and strength. The sealing ring is made of food-grade silicone or EPDM, ensuring a safe and durable seal. The double-press design mechanically presses both ends of the fitting for a secure, vibration-resistant connection.

Applications

Urban residential buildings
Public constructions
Water supply and drainage systems
Direct-drinking water systems
Gas supply systems

Customization

Contact our engineering team for size, material, and sealing material customization options based on your project requirements.

FAQ

Q1: How does the press-fit system work?

A: The fitting is inserted onto the pipe and pressed with a special tool, deforming the fitting and creating a permanent, leak-proof seal.

Q2: Stainless steel 304 vs 316L – which is better?

A: 316L offers enhanced corrosion resistance, especially in aggressive environments, while 304 is suitable for most general applications.

Q3: What is the difference between the ordinary and high-temperature models?

A: The high-temperature model uses a special sealing ring that withstands up to 120°C, whereas the ordinary model operates up to 95°C.

Q4: Are the fittings compatible with standard pipes?

A: Yes, they are designed for pipes with outer diameters from DN15 to DN100 per GB standards.

Q5: What certifications do these fittings have?

A: They are CE certified and comply with EN 10312.

Q6: Can these fittings be used for gas supply?

A: Yes, the EPDM sealing ring is suitable for gas systems.

Q7: Do you provide samples for testing?

A: Please contact us to discuss sample availability.

Inquiry Information

Contact: Cindy | Email: cindy@zxpipeindustry.com | Tel/WhatsApp: +86 18966285772

Company: WENZHOU ZHENGXIN PIPE FITTINGS CO., LTD

GB double-press coupling in stainless steel for water and gas piping

GB Double-Press Coupling - main product view