Overview
A compression fitting has three parts: the body, a nut and an olive (ferrule). Tightening the nut compresses the olive between the body and the tube, sealing the joint without heat. That makes compression fittings popular for water, gas and instrumentation lines where soldering is impractical.
Empire Alloys machines compression bodies, nuts and brass olives to matching tolerances so the seal forms reliably. Straight, elbow, tee and reducing patterns are made, along with caps and plugs and special designs.
Types and variants we make
Straight couplers & unions
Join two tubes.
Elbows & tees
Change direction or branch.
Reducer fittings
Join different tube sizes.
Caps & plugs
Close tube ends.
Special custom fittings
To drawing.
Specifications
| Material | Brass |
|---|---|
| Threads | BSP, NPT, metric or custom |
| Components | Body, nut, olive |
| Finish | Natural, nickel or as required |
Values shown are typical capabilities. Final dimensions, threads, tolerances and finish are confirmed against your drawing or sample at quotation stage.
Why buyers specify these parts from Empire Alloys
- Body, nut and olive made together for matched tolerances
- Threads gauged on every lot
- Custom sizes
- Domestic and export supply
Applications
- Water supply
- Gas lines
- Instrumentation
- Heating systems
- Factory utilities
Materials, plating and packing
Free-cutting brass (CZ121 / IS 319 type) is the default for machined parts; copper, copper alloys, aluminium, gunmetal and steel are also processed in-house. Plating options at Empire Alloys include tin, copper, chrome, nickel and zinc, with shot blasting and nitric wash available as surface treatments.
Parts are packed to suit the shipment: PVC or thermal PVC bags, cartons, shrink-wrap, strapped wooden cases or pallets, with every bag and carton labelled for easy identification.
What to send with your enquiry
- Drawing (PDF/DWG/STEP) or a physical sample, plus the part name or code you use
- Material grade and any standard the part must meet
- Thread type and size, critical dimensions and tolerance
- Finish or plating, quantity per lot and annual requirement
- Packing preference and delivery location (India or export)
Frequently asked questions
Do you supply olives separately?
Yes, brass olives are supplied separately as spares.
What tube materials can be used?
Copper and other tubes, depending on design; confirm in your enquiry.
How are compression fittings different from ferrule fittings?
They are closely related; see ferrule fittings for single and double-ferrule instrument designs.
Related products
Brass Olives
Compression olives and ferrules for leak-tight tube joints.
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Single and double-ferrule brass fittings for instrument tubing.
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Flare nuts, unions, elbows, tees and adapters for flared tube.
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Elbows, tees, couplings, unions, reducers and adapters in brass.
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