Insert the steel pipe into the ferrule, use the ferrule nut to lock it, which presses against the ferrule, causing the ferrule to cut into the pipe for sealing and resulting in extrusion deformation.
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4mm 6mm 8mm 10mm 12mm 14mm 16mm 19mm Hose Barb Bulkhead 304 Stainless Steel Barbed Tube Pipe Fitting Coupler Connector Adapter
Aliexpress UK
Brass Compression Stop End - 12mm. Introducing the Brass Stop End in 12mm, designed to block off unused pipes without the need for heat or solder. These compression fittings offer a convenient solution by simply tightening the nuts over the pipe. Ideal for quick system builds, they work for both hot and cold systems, providing a secure mechanical, heat-free connection. Plus, they are WRAS Approved for quality assurance.Other sizes are Available In Stop Ends.Technical Specifications: Compression Stop End Finish: Brass Hardwearing Brass Stop Ends Easy to Use Secure and Reliable WRAS Approved Shape: Hexagon Available In Other Sizes Size - 12mm ;Please Note: BSP threads are 1/4 inch larger than that stated in BSP terms.
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HVFF Pneumatic Fittings Hand Valve 4mm-12mm Connector Quick Push For Hose Tube Limiting Speed Control
Aliexpress UK
Legris Part Tube C E F F1 H H1. 0101 04 10 39 4mm 1/8" BSPP 5.5mm 13.0mm 10.0mm 17.5mm 9.0mm. 0101 05 10 39 5mm 1/8" BSPP 5.5mm 13.0mm 12.0mm 18.5mm 9.5mm. 0101 06 10 39 6mm 1/8" BSPP 5.5mm 13.0mm 13.0mm 19.0mm 9.5mm.
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Red Handle Valve 6mm 8mm 10mm 12mm Hose Barb Inline Brass Water Oil Air Gas Fuel Line Shutoff Ball Valve Pipe Fittings
Aliexpress UK
Pair of 15mm to 12mm 3 Piece Internal Reducer - Compression. Use on 12mm pipe going into a 15mm compression.
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Pipe 6mm 8mm 10mm 12mm 14mm 16mm 19mm Hose Barb Bulkhead Brass Barbed Tube Pipe Fitting Coupler Connector Adapter
Aliexpress UK
Brass Unequal Compression elbows. Reducing brass elbows. these are achieved by using a especially made adapters.
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10PCS PE Air Connectors 4 6 8 10 12MM PEG Pneumatic Fitting Slip Lock Tee 3Way Plastic Pipe Water Hose Tube Quick Connector
Aliexpress UK
Including air, water, oil, fuel, Low Pressure hydraulic up to 20 bar.
eBay
1pcs Red Handle Inline Shutoff Ball Valve, Hose Barb, Brass Pipe Fittings for Water, Oil, Air, Gas, Fuel Line, 6mm-12mm
Aliexpress UK
Compression Elbow. Size: 12mm. Heat Free Joints.
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Quick Release Fittings Hose Adapter 12mm/16mm For Aquariums Easy To Use A2BB
Aliexpress UK
They can be found in general use throughout the following industries:- hydraulic, pneumatic, automotive, locomotive, L.P.G., oil and gas, power generation, air conditioning, heating and ventilation - and also for applications where there is the need for the added safety provided by an engineering fitting.
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10PCS Pneumatic Fittings Quick Connector Air Plastic Hose Tube Connectors PU PG 4mm 6mm 8mm 10mm 12mm Push Into Pluglug
Aliexpress UK