Menu

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

Quantity:
SKU: 6390869754
Model: GB Series press Fittings

{{ variable.name }}

{{ value.name }}

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

MaterialSS304 (06Cr19Ni10) or SS316L (022Cr17Ni12Mo2)
Pipe O.D. RangeDN15 (φ16) – DN100 (φ108)
Working Pressure1.6 MPa (cold water), 1.0 MPa (hot water ≤95°C)
Working Temperature-20°C ~ 95°C (ordinary)
Sealing MaterialFood-grade silicone (FDA) / EPDM
StandardsCE, 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