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Plumbing, Heating & Electrical Supplies for Trade and DIY
Next Working Day Delivery Available — Order Before 1pm!
Free Standard Delivery on Eligible Orders Over £150
Pressfit Gas Coupling

Pressfit Gas Coupling

Brand: MEP Stock
In Stock
PRODUCT OVERVIEW
Pressfit Gas Coupling
The Pressfit Gas Coupling provides a secure straight connection for joining compatible copper gas pipework. Manufactured from high-quality copper and fitted with yellow HNBR sealing rings, it supports fast, reliable and flame-free installation.
25 YEAR WARRANTY
£39.27Ex. VAT

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IN STOCK
Price£0.81
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IN STOCK
Price£1.40
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Price£1.77
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Price£2.78
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Price£5.96
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Price£167.20

Quick Trade Summary: Copper Press Fit Gas Straight Coupling

MEP Stock supplies heavy-duty copper M-profile press fit gas straight couplings for natural gas, LPG, and compressed air lines. Fitted with hydrocarbon-resistant yellow HNBR O-rings, internal tube stops, and 5-bar gas certification under BS 6891 and BS EN 1254-7.

BS 6891 COMPLIANTYELLOW HNBR SEALS5 BAR / PN5 RATEDM-PROFILE COMPATIBLELEAK-BEFORE-PRESS-20°C TO +70°C

Flame-Free Copper Gas Straight Couplings for Gas Safe Engineers

Running copper gas lines in occupied premises and timber-framed structures requires flame-free jointing. Conforming to BS 6891 and GSIUR 1998, our M-profile gas straight couplings deliver leak-tight joints without hot-works permits.

Engineering Specifications & Material Standards

Parameter Specification Standard
Fitting MaterialDeoxidised High Phosphorus Copper CW024A / Cu-DHP (BS EN 1254-7)
Sealing ElementHigh-Grade Yellow HNBR (Hydrocarbon Resistant)
Operating PressureMax 5 bar (MOP 5 / PN5) for Natural Gas & LPG
Press ProfileM-Profile Press Jaws
Operating Temperature-20°C to +70°C (-4°F to 158°F)
Safety FeatureLeak-Before-Press (LBP) bypass channel for air tightness testing

Step-by-Step Installation Protocol

  1. Square Cut: Cut copper pipe cleanly at 90° with a rotary wheel cutter.
  2. Deburr Thoroughly: Deburr inner and outer edges thoroughly to protect the yellow HNBR seal.
  3. Mark Depth: Scribe insertion depth onto both copper pipes.
  4. Insert to Stop: Slide coupling over pipe until seated against central stop.
  5. Mechanical Press: Mount M-profile jaw square on the bead and complete the machine crimp.

Frequently Asked Questions: Pressfit Gas Coupling

Can I use this gas coupling on a water system?

While HNBR can handle water, it is best practice to keep gas fittings with yellow seals strictly for gas services. under BS 6891 and use dedicated black EPDM fittings for water to maintain compliance records.

Can this gas press coupling be buried in screed under BS 6891?

No, mechanical gas press joints must not be directly buried in concrete screed without an accessible duct. or protective sleeve. Gas pipework in screed should be continuous unjointed soft-coiled copper.

What press jaw profile is required?

Strictly requires M-Profile press jaws. (Rothenberger, Milwaukee, Novopress, Klauke, REMS).

What is the minimum distance from an existing soldered joint?

Maintain at least 100mm clearance from soldered joints, completing hot works first. to prevent heat from damaging the yellow HNBR O-ring.

What is the maximum operating pressure for gas?

Rated up to 5 bar (MOP 5) for natural gas and LPG. vapor systems.

How does Leak-Before-Press work on gas testing?

Engineered bypass channel leaks test gas at 10 to 50 mbar if unpressed. showing an immediate drop on your digital manometer during mandatory tightness testing.

Order Trade Copper Press Gas Couplings Online

Available from 15mm to 54mm in singles or discounted bulk packs.

Technical Installation & Sizing Guide

Read our comprehensive engineering guide covering BS EN compliance standards, hydraulic calculations, and trade best practices for this component.

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