
Brass Compression Stop End Pipe Fitting
A professional-grade plumbing fitting designed to provide a secure and reliable method of sealing the end of pipework in plumbing, heating and water distribution systems. Manufactured from high-quality brass, this compression stop end offers exceptional durability, corrosion resistance and long-term performance.

Brass Compression Stop End Pipe Fitting
A professional-grade plumbing fitting designed to provide a secure and reliable method of sealing the end of pipework in plumbing, heating and water distribution systems. Manufactured from high-quality brass, this compression stop end offers exceptional durability, corrosion resistance and long-term performance.
Quick Trade Summary: Brass Compression Stop End Pipe Fitting
MEP Stock supplies heavy-duty brass compression stop ends for terminating, capping, and pressure testing BS EN 1057 copper pipework. Conforming to BS EN 1254-2, each fitting features a robust solid blanking plug, precision compression nut, and high-purity olive for demountable, flame-free sealing up to 16 bar.
Durable Demountable Pipe Dead-Leg Capping & Pressure Testing
Capping off domestic copper supply lines during kitchen rip-outs, bathroom refurbishments, or system pressure testing is fast and flame-free with our brass compression stop ends. Unlike soldered or pressed end caps, compression stop ends are fully demountable and can be unscrewed when extending pipework.
Engineering Specifications & Material Standards
| Parameter | Specification Standard |
|---|---|
| Body Material | Dezincification Resistant (DZR) Brass CW617N (BS EN 1254-2) |
| Pipe Compatibility | BS EN 1057 (R250 Half-Hard / R290 Hard Table X) |
| Sealing Mechanism | Metal-to-Metal Compression via Copper/Brass Olive |
| Demountability | Fully Demountable with Standard Adjustable Spanners |
| Operating Pressure | Max 16 bar (PN16) at ambient water temperatures |
| Operating Temperature | -20°C to +110°C (Potable Water & Heating Primary) |
| Sizes Available | 15mm, 22mm, 28mm, 35mm, 42mm, and 54mm |
Step-by-Step Installation Protocol
- Square Cut: Cut copper pipe cleanly at 90° with a rotary pipe wheel cutter.
- Deburr Pipe End: Ream internal and external pipe edges to ensure smooth seating.
- Slide Nut & Olive: Slide compression nut over pipe, followed by the brass olive.
- Insert Pipe into Cap: Push copper pipe firmly into the stop end socket until fully seated.
- Tighten to Torque: Hand-tighten nut, hold cap body with grips, and tighten nut with a spanner 3/4 to 1 full turn.
Frequently Asked Questions: Brass Compression Stop End Pipe Fitting
Can this compression stop end be removed and reused?
Yes, compression stop ends are fully demountable, making them ideal for temporary caps. during bathroom refits or pressure testing. To reuse on a new pipe, simply fit a fresh olive.
Do I need to apply PTFE tape or jointing paste to the olive?
On clean, undamaged copper pipe, a dry olive will seal perfectly without paste. However, on older slightly scored copper pipe, plumbers often apply a light smear of non-hardening jointing compound (e.g. Fernox White) to the olive face.
Can this compression stop end be used on central heating pipework?
Yes, fully certified for heating circuits and domestic potable water up to 16 bar. and +110°C.
Can I use this stop end on plastic barrier pipe?
Yes, provided an approved manufacturer pipe stiffener/insert is placed inside the plastic pipe. before tightening the compression nut.
Is the olive and nut included in the fitting?
Yes, supplied complete with solid brass stop end body, compression nut, and olive.
How far should I tighten the compression nut?
Tighten hand-tight, then an additional 3/4 to 1 full turn with a spanner. Avoid extreme overtightening, which can crush the olive and distort the copper pipe.
Order Brass Compression Stop Ends Online
Available in 15mm, 22mm, 28mm, and 35mm in stock at MEP Stock.
Quick Trade Summary: Brass Compression Stop End Pipe Fitting
MEP Stock supplies heavy-duty brass compression stop ends for terminating, capping, and pressure testing BS EN 1057 copper pipework. Conforming to BS EN 1254-2, each fitting features a robust solid blanking plug, precision compression nut, and high-purity olive for demountable, flame-free sealing up to 16 bar.
Durable Demountable Pipe Dead-Leg Capping & Pressure Testing
Capping off domestic copper supply lines during kitchen rip-outs, bathroom refurbishments, or system pressure testing is fast and flame-free with our brass compression stop ends. Unlike soldered or pressed end caps, compression stop ends are fully demountable and can be unscrewed when extending pipework.
Engineering Specifications & Material Standards
| Parameter | Specification Standard |
|---|---|
| Body Material | Dezincification Resistant (DZR) Brass CW617N (BS EN 1254-2) |
| Pipe Compatibility | BS EN 1057 (R250 Half-Hard / R290 Hard Table X) |
| Sealing Mechanism | Metal-to-Metal Compression via Copper/Brass Olive |
| Demountability | Fully Demountable with Standard Adjustable Spanners |
| Operating Pressure | Max 16 bar (PN16) at ambient water temperatures |
| Operating Temperature | -20°C to +110°C (Potable Water & Heating Primary) |
| Sizes Available | 15mm, 22mm, 28mm, 35mm, 42mm, and 54mm |
Step-by-Step Installation Protocol
- Square Cut: Cut copper pipe cleanly at 90° with a rotary pipe wheel cutter.
- Deburr Pipe End: Ream internal and external pipe edges to ensure smooth seating.
- Slide Nut & Olive: Slide compression nut over pipe, followed by the brass olive.
- Insert Pipe into Cap: Push copper pipe firmly into the stop end socket until fully seated.
- Tighten to Torque: Hand-tighten nut, hold cap body with grips, and tighten nut with a spanner 3/4 to 1 full turn.
Frequently Asked Questions: Brass Compression Stop End Pipe Fitting
Can this compression stop end be removed and reused?
Yes, compression stop ends are fully demountable, making them ideal for temporary caps. during bathroom refits or pressure testing. To reuse on a new pipe, simply fit a fresh olive.
Do I need to apply PTFE tape or jointing paste to the olive?
On clean, undamaged copper pipe, a dry olive will seal perfectly without paste. However, on older slightly scored copper pipe, plumbers often apply a light smear of non-hardening jointing compound (e.g. Fernox White) to the olive face.
Can this compression stop end be used on central heating pipework?
Yes, fully certified for heating circuits and domestic potable water up to 16 bar. and +110°C.
Can I use this stop end on plastic barrier pipe?
Yes, provided an approved manufacturer pipe stiffener/insert is placed inside the plastic pipe. before tightening the compression nut.
Is the olive and nut included in the fitting?
Yes, supplied complete with solid brass stop end body, compression nut, and olive.
How far should I tighten the compression nut?
Tighten hand-tight, then an additional 3/4 to 1 full turn with a spanner. Avoid extreme overtightening, which can crush the olive and distort the copper pipe.
Order Brass Compression Stop Ends Online
Available in 15mm, 22mm, 28mm, and 35mm in stock at MEP Stock.










