Product
Double Ferrule Fittings
Double ferrule instrumentation tube fittings — also called twin ferrule fittings — for leak-tight, reusable connections on instrumentation tubing.
Tube Fittings & Connectors
Double Ferrule Fittings
Double ferrule tube fittings, also called twin ferrule fittings, make a leak-tight and reusable connection on instrumentation tubing. Each fitting is four pieces: the body, the front ferrule, the back ferrule and the nut. Tightening drives the front ferrule into a seal against both the body and the tube, while the back ferrule grips the tube so the joint holds under vibration and thermal cycling. Supplied 1/16"–2" / 3–38 mm in SS 316, Brass, Monel, with NPT, ISO Taper (BSPT), ISO Parallel RP, ISO Parallel RS threads. Certified to ASTM F1387-99 (2012), ANSI B31.1, ABS, PED. The range covers unions, elbows, tees and crosses, bulkhead fittings, male and female connectors and adapters, reducers, ferrules and end closures.
- Body materials
- SS 316, Brass, Monel
- Thread systems
- NPT, ISO Taper (BSPT), ISO Parallel RP, ISO Parallel RS
Features
- Body materials: SS 316, Brass, Monel
- Thread systems: NPT, ISO Taper (BSPT), ISO Parallel RP, ISO Parallel RS
- Sizes: 1/16"–2" / 3–38 mm
- Four-piece construction: body, front ferrule, back ferrule, nut
- Also called twin ferrule or double compression fittings
- Tube OD range
- 3 mm, 6 mm, 8 mm, 10 mm, 12 mm, 14 mm, 15 mm, 16 mm, 18 mm, 20 mm, 22 mm, 25 mm, 28 mm, 30 mm, 32 mm, 38 mm, 4 mm, 5 mm, 35 mm, 1/4 in, 1/16 in, 1/8 in, 5/16 in, 3/8 in, 1/2 in, 5/8 in, 3/4 in, 7/8 in, 1 in, 1-1/4 in, 1-1/2 in, 2 in
- Size range
- 1/16"–2" / 3–38 mm
- Thread systems
- NPT, ISO Taper (BSPT), ISO Parallel RP, ISO Parallel RS
- Body materials
- SS 316, Brass, Monel
SS 316
standardSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
Brass
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
Monel
on requestSupplied with EN 10204 3.1 material certification and heat-code traceability to the melt.
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