316 GAS COUPLER
Stainless Steel 316 Fittings GAS
| Product Code | Product description | Size 1 | Bag | Box |
|---|---|---|---|---|
| 8815000015 | 15MM COUPLER SS 316L GAS PRESS | 15MM | 25 | 200 |
| 8815000018 | 18MM COUPLER SS 316L GAS PRESS | 18MM | 25 | 150 |
| 8815000022 | 22MM COUPLER SS 316L GAS PRESS | 22MM | 25 | 150 |
| 8815000028 | 28MM COUPLER SS 316L GAS PRESS | 28MM | 20 | 80 |
| 8815000035 | 35MM COUPLER SS 316L GAS PRESS | 35MM | 10 | 40 |
| 8815000042 | 42MM COUPLER SS 316L GAS PRESS | 42MM | 5 | 30 |
| 8815000054 | 54MM COUPLER SS 316L GAS PRESS | 54MM | 2 | 20 |
| 8815000067 | 66.7MM COUPLER SS 316L GAS PRESS | 66.7MM | N/A | N/A |
| 8815000076 | 76.1MM COUPLER SS 316L GAS PRESS | 76.1MM | N/A | N/A |
| 8815000089 | 88.9MM COUPLER SS 316L GAS PRESS | 89MM | N/A | N/A |
| 8815000108 | 108MM COUPLER SS 316L GAS PRESS | 108MM | N/A | N/A |
| 8815000139 | 139.7MM COUPLER SS 316L GAS PRESS | 139MM | N/A | N/A |
| 8815000168 | 168.3MM COUPLER SS 316L GAS PRESS | 168MM | N/A | N/A |
Stainless Steel Gas Press Coupler
The Lawton Tubes 316 Stainless Steel Gas Press Coupler is designed to securely join two lengths of stainless steel press-fit gas pipework. Manufactured from premium 316 stainless steel, it provides excellent corrosion resistance, strength and long-term reliability.
Key Features
- Connects two lengths of pipework
- Suitable for Family 2 and Family 3 fuel gas systems
- Suitable for compressed air systems
- No soldering required
- No hot works permits required
- Yellow press indicator
- No leak before press O-ring safety feature
- Electrical continuity
- M-profile press configuration
- Compatible with stainless steel tubes manufactured to EN 10312
- Suitable for installations to BS 6891 and IGEM/UP/2
- 50-year warranty — see website terms and conditions
Technical Data
Product Overview
Lawton 316L Stainless Steel Gas Press Fittings provide a safe, heat-free jointing solution for Family 2 and Family 3 fuel gas systems and compressed air applications. Manufactured from AISI 316L stainless steel, the range is available in sizes from 15mm to 108mm and features an M-profile press connection with a yellow HNBR sealing element for reliable gas installations.
Applications
- Family 2 Fuel Gas Systems
- Family 3 Fuel Gas Systems
- Compressed Air Systems
Market Sectors
- Domestic
- Commercial
Product Specifications
|
Property |
Specification |
|
Material |
1.4404 (AISI 316L) Stainless Steel |
|
Size Range |
15mm – 108mm |
|
Seal Material |
Yellow HNBR O-Ring |
|
Press Profile |
M-Profile |
|
Maximum Fuel Gas Pressure |
5 bar (outdoors), 1 bar (indoors) |
|
Minimum Operating Pressure |
-0.8 bar (gauge) |
|
Maximum Compressed Air Pressure |
10 bar (5°C to 35°C) |
|
Operating Temperature Range |
-20°C to +70°C |
|
Product Marking |
Size, LTC Logo, Material Grade, Manufacturing Date |
|
Electrical Continuity |
Yes |
|
Warranty |
50 Years* |
Subject to standard Terms & Conditions. Please refer to our website for full details.
Key Features
- Heat-free installation
- No soldering required
- No hot works permits needed
- Yellow press indicator for easy identification
- HNBR seal designed for gas applications
- Electrical continuity throughout the system
- Higher Thermal Capacity (HTC) fire-tested performance
- Suitable for fuel gas and compressed air systems
Standards & Compliance
|
Category |
Standard |
|
Fitting Material |
EN 10088 |
|
O-Ring Material |
EN 549 |
|
Installation Standards |
BS 6891 |
|
Industry Guidance |
IGEM/UP/2 |
|
Thread Specification (Male) |
ISO 7 / EN 10226-1 |
|
Thread Specification (Female) |
BS EN ISO 228 |
Note: All installations must comply with the Gas Safety (Installation and Use) Regulations 1998.
Operating Performance
|
Property |
Value |
|
Maximum Fuel Gas Pressure (Indoor) |
1 bar |
|
Maximum Fuel Gas Pressure (Outdoor) |
5 bar |
|
Maximum Compressed Air Pressure |
10 bar |
|
Minimum Pressure |
-0.8 bar (vacuum) |
|
Operating Temperature Range |
-20°C to +70°C |
|
Electrical Continuity |
Yes |
Fire Resistance
Lawton 316L Gas Press Fittings have been tested to demonstrate Higher Thermal Capacity (HTC) performance.
|
Property |
Performance |
|
Fire Performance |
Gas-tight at 650°C |
|
Duration |
30 Minutes |
|
Pressure Rating |
PN5 |
This performance helps prevent the formation of explosive gas-air mixtures in the event of a fire, making the system suitable for installation in buildings subject to fire regulations.
Tube Compatibility
Compatible with stainless steel tubes manufactured to EN 10312. Fittings accept both Series 1 and Series 2 tube dimensions.
|
Tube OD (mm) |
EN 10312 Series 1 Wall Thickness (mm) |
EN 10312 Series 2 Wall Thickness (mm) |
|
15 |
0.6 ✓ |
1.0 ✓ |
|
18 |
0.7 ✓ |
1.0 ✓ |
|
22 |
0.7 ✓ |
1.2 ✓ |
|
28 |
0.8 ✓ |
1.2 ✓ |
|
35 |
1.0 ✓ |
1.5 ✓ |
|
42 |
1.1 ✓ |
1.5 ✓ |
|
54 |
1.2 ✓ |
1.5 ✓ |
|
66.7 |
1.2 ✓ |
— |
|
76.1 |
1.5 ✓ |
2.0 ✓ |
|
88.9 |
— |
2.0 ✓ |
|
108 |
1.5 ✓ |
2.0 ✓ |
Recommended Minimum Fitting Clearance
To allow for tube deformation during pressing, the following minimum distances should be maintained between adjacent fittings.
|
Tube Size |
Minimum Clearance F (mm) |
|
15mm |
13 |
|
18mm |
13 |
|
22mm |
13 |
|
28mm |
13 |
|
35mm |
13 |
|
42mm |
16 |
|
54mm |
20 |
|
66.7mm |
30 |
|
76.1mm |
40 |
|
88.9mm |
45 |
|
108mm |
50 |
Approved Press Tools
Lawton 316L Gas Press Fittings are approved for use with M-profile pressing systems from:
- Novopress
- Geberit
- Rothenberger
- REMS
Important: Matching press tools, adaptors, jaws and slings from the same manufacturer must always be used during installation.
Material Compatibility
Dissimilar Metals
Installations containing mixed metals should generally be avoided, as galvanic corrosion may occur when dissimilar metals are connected directly together.
Where mixed-metal systems are unavoidable:
- Follow Gas Safety (Installation and Use) Regulations 1998.
- Apply recognised good engineering practice.
- Consider appropriate isolation measures where necessary.
Grade Compatibility
- 304 and 316L stainless steel tubes and fittings can be used within the same system.
- Overall corrosion resistance will be determined by the least corrosion-resistant component used.
Key Benefits
- Designed specifically for fuel gas installations
- Heat-free, flame-free installation
- Fire-tested HTC performance
- Suitable for compressed air systems
- Compatible with EN 10312 stainless steel tube
- Wide size range from 15mm to 108mm
- Fully compatible with approved M-profile tooling
- Backed by a 50-year warranty
