316 ADAPTOR WITH UNION NUT
Stainless Steel 316L Press
| Part | Description | Size | Size 2 | Bag | Box |
|---|---|---|---|---|---|
| 7722001512 | 15 X 1/2 ADAPT WITH UNION NUT SS316L PRESS | 15MM | 1/2" | 25 | 150 |
| 7722001834 | 18 X 3/4 ADAPT WITH UNION NUT SS316L PRESS | 18MM | 3/4" | 20 | 100 |
| 7722002201 | 22 X 1 ADAPT WITH UNION NUT SS316L PRESS | 22MM | 1" | 15 | 75 |
| 7722002234 | 22 X 3/4 ADAPT WITH UNION NUT SS316L PRESS | 22MM | 3/4" | 25 | 125 |
| 7722002801 | 28 X 1 ADAPT WITH UNION NUT SS316L PRESS | 28MM | 1" | 10 | 50 |
| 7722005402 | 54 X 2 ADAPT WITH UNION NUT SS316L PRESS | 54MM | 2" | 2 | 20 |
| 7722028114 | 28 X 11/4 ADAPT WITH UNION NUT SS316L | 28MM | 1 1/4" | 10 | 50 |
| 7722035114 | 35 X 11/4 ADAPT WITH UNION NUT SS316L | 35MM | 1 1/4" | 10 | 50 |
| 7722042112 | 42 X 11/2 ADAPT WITH UNION NUT SS316L | 42MM | 1 1/2" | 5 | 30 |
"Stainless Steel Press Adaptor With Union Nut
The Lawton Tubes 316 Stainless Steel Press Adaptor With Union Nut provides a flexible connection between stainless steel press-fit pipework and compatible components requiring a removable union connection. The design allows easier installation, maintenance and servicing without disturbing surrounding pipework.
Manufactured from premium 316 stainless steel, it delivers excellent corrosion resistance and long-term durability. The press-fit connection enables a quick installation process, reducing labour time and helping improve overall project efficiency.
Supported by a 50-year warranty, the Lawton Tubes Stainless Steel Press Adaptor With Union Nut provides a dependable solution for professional pipework applications.
Key Features
Manufactured from high-quality 316 stainless steel
Includes removable union nut connection
Allows easier maintenance and servicing
Fast press-fit installation
Helps reduce labour time and installation costs
No welding or soldering required
Excellent corrosion resistance
Secure and reliable connection
Backed by a 50-year warranty"
Technical Data
Product Overview
Lawton Copper Press Fittings provide a fast, reliable and heat-free jointing solution for potable water, heating, cooling and oil-free compressed air systems. Available in sizes from 15mm to 108mm, the range features an M-profile press connection with EPDM sealing technology and is compliant with EN 1254-7.
Applications
- Potable Water Systems
- Heating Systems
- Cooling Systems
- Oil-Free Compressed Air Systems
Market Sectors
- Domestic
- Commercial
Product Specifications
Property | Specification |
Size Range | 15mm - 108mm |
Approvals | KIWA REG4, WRAS |
Materials | CW024A Copper and CW602N DZR Brass |
Seal Material | EPDM O-Ring |
Press Configuration | M-Profile |
Maximum Liquid Pressure | 16 bar (-20°C to +110°C) |
Maximum Negative Pressure | >0.2 bar (-20°C to +110°C) |
Maximum Oil-Free Compressed Air Pressure | 10 bar (5°C to 35°C) |
Product Marking | Size, LTC Logo, EN 1254 |
Electrical Continuity | Yes |
Thread Specification (Male) | ISO 7 / EN 10226-1 |
Thread Specification (Female) | BS EN ISO 228 |
Standard | EN 1254-7 |
Warranty | 75 Years* |
Subject to standard Terms & Conditions. Please refer to our website for full details.
Standards & Compliance
Category | Standard |
Press Fittings | EN 1254-7 |
Male Threads | ISO 7 / EN 10226-1 |
Female Threads | BS EN ISO 228 |
Product Approval | KIWA REG4 |
Product Approval | WRAS |
Operating Performance
Property | Value |
Maximum Liquid Pressure | 16 bar |
Maximum Oil-Free Compressed Air Pressure | 10 bar |
Maximum Negative Pressure | >0.2 bar |
Operating Temperature Range | -20°C to +110°C |
Electrical Continuity | Yes |
Copper Tube Compatibility
Compatible with copper tube manufactured to BS EN 1057.
Material Conditions
- R250 – Half-hard, bendable
- R290 – Hard, unbendable
Outside Diameter | 0.7mm Wall | 0.9mm Wall | 1.0mm Wall | 1.2mm Wall | 1.5mm Wall | 2.0mm Wall | 2.5mm Wall |
15mm | R250 | — | R250 / R290 | — | — | — | — |
22mm | — | R250 | — | R250 / R290 | — | — | — |
28mm | — | R250 | — | R250 / R290 | — | — | — |
35mm | — | — | R290 | R250 / R290 | R290 | — | — |
42mm | — | — | R290 | R250 / R290 | R290 | — | — |
54mm | — | — | — | — | R290 | R290 | R290 |
66.7mm | — | — | — | — | R290 | R290 | — |
76.1mm | — | — | — | — | R290 | R290 | — |
108mm | — | — | — | — | R290 | — | R290 |
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 |
22mm | 13 |
28mm | 13 |
35mm | 13 |
42mm | 16 |
54mm | 20 |
66.7mm | 30 |
76.1mm | 40 |
108mm | 50 |
Approved Press Tools
Lawton Copper Press Fittings are approved for use with M-profile press systems from:
- Novopress
- Geberit
- Rothenberger
- REMS
Important Installation Note
Matching press tools, adaptors, jaws and slings from the same manufacturer must always be used during installation.
Tool Compatibility
Manufacturer | Model | Diameter Range |
Novopress | ACO103 | 15mm - 28mm |
Novopress | ACO203 | 15mm - 54mm |
Novopress | ACO203XL | 15mm - 76.1mm |
Novopress | ACO403 | 108mm |
Geberit | ACO103plus | 15mm - 35mm |
Geberit | ACO203plus | 15mm - 66.7mm |
Geberit | ACO203XLplus | 15mm - 108mm |
Rothenberger | Compact TT | 15mm - 28mm |
Rothenberger | Compact 3 | 15mm - 35mm |
Rothenberger | Romax 4000 | 15mm - 54mm |
REMS | Mini-Press | 15mm - 28mm |
REMS | Akku-Press | 15mm - 28mm |
Note: For 108mm fittings, Novopress ZB221 and ZB222 adaptors act as the first and second stages respectively during the two-stage pressing process for the M108 collar.
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 the Water Regulations Guide.
- Apply recognised engineering best practice.
- Consider suitable isolation measures where required.
