Compression Fittings

What are compression fittings?
Suitable for use in both commercial and residential applications, brass and copper compression fittings are an easy and practical plumbing method for both DIY and professional plumbers. Available in a variety of standard sizes each in different profiles such as straight connectors, 90-degree elbow, equal tee as well as reducing fittings from one size to another. Connecting copper pipe is easy with the range of fittings available with minimal effort.

How do compression fittings work?
Standard compression fittings are simple and easy to use fitting as simple as the name sounds. Made up of three basic pieces, a compression fitting uses a threaded nut with a hole in that tightens down to the compression fittings body. This tightens down over a small typically brass ring called an Olive that is placed between the nut and the body of the fitting. This olive is compressed by the tightening of the nut to the body creating a sealed joint.

What size do I need?
Always check the exact size of the pipe or fitting to be used when plumbing and a range of metric and imperial fittings are available and ensuring the correct size is selected is key to making an exact and well-sealed joint.

Using Compression Fittings
Most standard compression fittings just require two spanners to install, these can either be fixed or adjustable spanners used to tighten the fittings nut down for the best seal. PTFE tape may also be used over the fittings thread to give the best seal and limit the risk of leaking over time.

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Description Price Compression Connection Pipe Diameter Fitting Type Material Threaded Connection Fitting Direction Thread Size Thread Standard Gender
RS Stock No. 432-0291
BrandRS PRO
PHP204.275
Each (In a Pack of 2)
units
10mm Coupler Brass 1/2 in BSPP Male Straight 1/2in BSPP Male
RS Stock No. 432-0320
BrandRS PRO
PHP197.28
Each (In a Pack of 2)
units
15mm Coupler Brass 3/8 in BSPP Male Straight 3/8in BSPP Male
RS Stock No. 798-094
BrandRS PRO
PHP529.74
Each
units
22 x 22mm Coupler Brass 3/4 in BSPP Male Straight 3/4in BSPP Male
RS Stock No. 285-8845
BrandRS PRO
PHP228.01
Each (In a Pack of 2)
units
15mm Coupler Brass - Elbow - - -
RS Stock No. 369-1520
BrandRS PRO
PHP137.29
Each (In a Pack of 2)
units
15mm Coupler Brass - Straight - - -
RS Stock No. 225-7551
BrandRS PRO
PHP2,709.24
Each
units
35mm Deep Seal P Copper 1-1/4 in BSP Female - 1-1/4in BSP Female
RS Stock No. 369-1621
BrandRS PRO
PHP175.665
Each (In a Pack of 2)
units
15mm Coupler Brass - Elbow - - -
RS Stock No. 796-751
BrandRS PRO
PHP288.45
Each (In a Pack of 2)
units
12mm Coupler Brass - Straight - - -
RS Stock No. 285-8687
BrandRS PRO
PHP182.875
Each (In a Pack of 2)
units
15mm Coupler Brass 1/2 in BSPP Male Straight 1/2in BSPP Male
RS Stock No. 432-0308
BrandRS PRO
PHP212.74
Each (In a Pack of 2)
units
15mm Coupler Brass 1/4 in BSPP Male Straight 1/4in BSPP Male
RS Stock No. 432-0392
BrandRS PRO
PHP661.85
Each (In a Pack of 2)
units
28mm Elbow Brass - 90° - - -
RS Stock No. 225-7567
BrandRS PRO
PHP2,821.63
Each
units
42mm Deep Seal P Copper 1-1/2 in BSP Female - 1-1/2in BSP Female
RS Stock No. 432-0285
BrandRS PRO
PHP310.885
Each (In a Pack of 2)
units
10mm Coupler Brass 1/4 in BSPP Male Straight 1/4in BSPP Male
RS Stock No. 432-0336
BrandRS PRO
PHP228.01
Each (In a Pack of 2)
units
15mm Coupler Brass 3/4 in BSPP Male Straight 3/4in BSPP Male
RS Stock No. 432-0358
BrandRS PRO
PHP350.185
Each (In a Pack of 2)
units
28mm Coupler Brass 1 in BSPP Male Straight 1in BSPP Male
RS Stock No. 369-1564
BrandRS PRO
PHP327.75
Each
units
15mm Coupler Brass - Straight - - -
RS Stock No. 285-8766
BrandRS PRO
PHP662.57
Each
units
15mm Tap Coupler Brass 1/2 in BSPP Female 90° 1/2in BSPP Female
RS Stock No. 285-8889
BrandRS PRO
PHP326.57
Each (In a Pack of 2)
units
15 x 15 x 15mm Equal Tee Brass - - - - -
RS Stock No. 369-1586
BrandRS PRO
PHP374.91
Each
units
22mm Coupler Brass - Straight - - -
RS Stock No. 432-0370
BrandRS PRO
PHP535.64
Each (In a Pack of 2)
units
28mm End Stop Brass - - - - -
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ENOTS compression fittings are ideal for most general ...
Description:
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In-line connection of tubing with a male thread. ...
Description:
In-line connection of tubing with a male thread. Maximum working pressure: 80 barOlive: Stainless steel 316LBody: Stainless steel 316LNut: Stainless steel 316L.
Compression fittings suitable for use with a variety ...
Description:
Compression fittings suitable for use with a variety of tube materials including stainless steel, PTFE, semi-rigid nylon and polyurethane. Maximum working pressure is 80 bar (1160 psi) and maximum working temperature is 250°C at working pressure. The fittings can also ...
Compression fittings suitable for use with a variety ...
Description:
Compression fittings suitable for use with a variety of tube materials including stainless steel, PTFE, semi-rigid nylon and polyurethane. Maximum working pressure is 80 bar (1160 psi) and maximum working temperature is 250°C at working pressure. The fittings can also ...