
Chrome Compression Straight Coupling WRAS Approved Pipe Connector
This Chrome Compression Straight Coupling is a high-quality chrome plated brass compression fitting designed to create secure and reliable pipe connections in plumbing and heating systems.

Chrome Compression Straight Coupling WRAS Approved Pipe Connector
This Chrome Compression Straight Coupling is a high-quality chrome plated brass compression fitting designed to create secure and reliable pipe connections in plumbing and heating systems.
Product Options
Quick Trade Summary: Chrome Compression Straight Coupling
MEP Stock supplies premium mirror-chrome plated forged brass compression straight couplings for visible pipework in modern bathrooms, towel rails, designer radiators, and exposed vanity installations. Certified to BS EN 1254-2 and WRAS approved with precision brass olive rings.
High-Lustre Mirror Chrome Compression Joints for Exposed Plumbing
Exposed chrome radiator tails, designer towel warmers, and luxury washbasin bottle traps require pristine aesthetics and zero joint weeping. Our mirror chrome-plated brass compression straight couplings combine high-purity CW617N brass cores with durable electroplated chrome, delivering flawless visual appeal alongside BS EN 1254-2 mechanical pressure containment.
Engineering Specifications
| Body Material | Hot Forged Brass CW617N with Electroplated Mirror Chrome |
| Compression Olive | Precision Machined Brass Olive Ring (BS EN 1254-2) |
| Pipe Compatibility | BS EN 1057 Copper & Chrome-Plated Copper Tube, PB/PEX with Inserts |
| Pressure Rating | 16 bar at 30°C / 10 bar at 65°C / 6 bar at 110°C |
| Standards & Compliance | BS EN 1254-2, WRAS Approved |
| Application | Exposed Radiators, Towel Warmers, Designer Bathrooms, Domestic Water |
BS EN Installation Protocol
- Step 1: Square Cut Chrome Pipe — Cut chrome or copper pipe square at 90° with a fine-tooth cutter. Protect chrome finish with masking tape.
- Step 2: Lightly Deburr — Deburr internally and remove any raised edge burrs without scoring the outer chrome plating.
- Step 3: Assemble Nut & Olive — Slide chrome compression nut followed by brass olive onto the pipe.
- Step 4: Seat Pipe in Body — Push pipe fully home into the coupling socket until it bottoms out against the internal shoulder.
- Step 5: Tighten with Smooth Jaws — Hand-tighten chrome nut, then apply smooth-jaw or padded spanners to tighten 3/4 to 1 full turn beyond hand-tight to prevent scratching chrome.
Frequently Asked Questions
How do I prevent scratching the chrome plating during spanner tightening?
Use smooth-jaw adjustable pliers or wrap masking tape around spanner jaws.
Use smooth-jaw adjustable pliers (e.g. Knipex Pliers Wrench) or wrap masking tape around spanner jaws. Serrated pipe wrenches will gouge and permanently damage electroplated chrome finishes.
Can this chrome coupling be used on standard copper pipe as well as chrome pipe?
Yes, compatible with both standard copper tube and chrome-plated copper tube.
Yes, compatible with both standard copper tube and chrome-plated copper tube manufactured to BS EN 1057.
Should I apply jointing paste or PTFE tape to the brass olive?
Brass olives seal mechanically metal-to-metal without tape when tightened correctly.
Brass olives seal mechanically metal-to-metal without tape when tightened correctly. If desired, a smear of WRAS-approved non-setting compound (such as Boss White or Jet Blue) can be applied to the olive.
Is this chrome coupling WRAS approved for drinking water?
Yes, fully WRAS approved for hot and cold potable drinking water.
Yes, fully WRAS approved for wholesome hot and cold potable drinking water under UK Water Regulations.
Can this chrome fitting be used with plastic PEX or Polybutylene pipe?
Yes, provided manufacturer-approved rigid copper/brass pipe inserts are installed.
Yes, provided manufacturer-approved rigid copper/brass pipe inserts are installed inside the plastic pipe to prevent olive compression collapse.
What sizes are available in chrome straight couplings?
Available in 15mm and 22mm sizes in single units and contractor packs.
Available in 15mm and 22mm sizes in single units and contractor multipacks.
Order Trade Chrome Compression Couplings Online
Available in 15mm and 22mm with trade pricing for bathrooms and radiator installs.
Browse Full Compression Fittings Range →Quick Trade Summary: Chrome Compression Straight Coupling
MEP Stock supplies premium mirror-chrome plated forged brass compression straight couplings for visible pipework in modern bathrooms, towel rails, designer radiators, and exposed vanity installations. Certified to BS EN 1254-2 and WRAS approved with precision brass olive rings.
High-Lustre Mirror Chrome Compression Joints for Exposed Plumbing
Exposed chrome radiator tails, designer towel warmers, and luxury washbasin bottle traps require pristine aesthetics and zero joint weeping. Our mirror chrome-plated brass compression straight couplings combine high-purity CW617N brass cores with durable electroplated chrome, delivering flawless visual appeal alongside BS EN 1254-2 mechanical pressure containment.
Engineering Specifications
| Body Material | Hot Forged Brass CW617N with Electroplated Mirror Chrome |
| Compression Olive | Precision Machined Brass Olive Ring (BS EN 1254-2) |
| Pipe Compatibility | BS EN 1057 Copper & Chrome-Plated Copper Tube, PB/PEX with Inserts |
| Pressure Rating | 16 bar at 30°C / 10 bar at 65°C / 6 bar at 110°C |
| Standards & Compliance | BS EN 1254-2, WRAS Approved |
| Application | Exposed Radiators, Towel Warmers, Designer Bathrooms, Domestic Water |
BS EN Installation Protocol
- Step 1: Square Cut Chrome Pipe — Cut chrome or copper pipe square at 90° with a fine-tooth cutter. Protect chrome finish with masking tape.
- Step 2: Lightly Deburr — Deburr internally and remove any raised edge burrs without scoring the outer chrome plating.
- Step 3: Assemble Nut & Olive — Slide chrome compression nut followed by brass olive onto the pipe.
- Step 4: Seat Pipe in Body — Push pipe fully home into the coupling socket until it bottoms out against the internal shoulder.
- Step 5: Tighten with Smooth Jaws — Hand-tighten chrome nut, then apply smooth-jaw or padded spanners to tighten 3/4 to 1 full turn beyond hand-tight to prevent scratching chrome.
Frequently Asked Questions
How do I prevent scratching the chrome plating during spanner tightening?
Use smooth-jaw adjustable pliers or wrap masking tape around spanner jaws.
Use smooth-jaw adjustable pliers (e.g. Knipex Pliers Wrench) or wrap masking tape around spanner jaws. Serrated pipe wrenches will gouge and permanently damage electroplated chrome finishes.
Can this chrome coupling be used on standard copper pipe as well as chrome pipe?
Yes, compatible with both standard copper tube and chrome-plated copper tube.
Yes, compatible with both standard copper tube and chrome-plated copper tube manufactured to BS EN 1057.
Should I apply jointing paste or PTFE tape to the brass olive?
Brass olives seal mechanically metal-to-metal without tape when tightened correctly.
Brass olives seal mechanically metal-to-metal without tape when tightened correctly. If desired, a smear of WRAS-approved non-setting compound (such as Boss White or Jet Blue) can be applied to the olive.
Is this chrome coupling WRAS approved for drinking water?
Yes, fully WRAS approved for hot and cold potable drinking water.
Yes, fully WRAS approved for wholesome hot and cold potable drinking water under UK Water Regulations.
Can this chrome fitting be used with plastic PEX or Polybutylene pipe?
Yes, provided manufacturer-approved rigid copper/brass pipe inserts are installed.
Yes, provided manufacturer-approved rigid copper/brass pipe inserts are installed inside the plastic pipe to prevent olive compression collapse.
What sizes are available in chrome straight couplings?
Available in 15mm and 22mm sizes in single units and contractor packs.
Available in 15mm and 22mm sizes in single units and contractor multipacks.
Order Trade Chrome Compression Couplings Online
Available in 15mm and 22mm with trade pricing for bathrooms and radiator installs.
Browse Full Compression Fittings Range →









