Compression Fittings

Internal nut type

Compression fittings

Rugged and durable. Firm joint using all brass

construction For use with plastic and

metal tubing Suitable for low and high

operating temperatures Vacuum to high pressure Comprehensive range of

sizes and forms General purpose

application

Thread sizes (compression fittings)

Thread sizes range R 1/8 , R 1/4 , R 3/8 , R 1/2 , R 3/4

G 1/8 , G 1/4 , G 3/8 , G 1/2 , G 3/4 , G 1

NPTF 1/8 , 1/4 , 3/8 , 1/2

Tube sizes

The metric range 4, 5, 6, 8, 10, 12, 15, 16, 18, 22, 28 mm o/d

The inch range 1/8 , 5/32, 3/16, 1/4, 5/16, 3/8, 1/2, 5/8, 3/4 o/d

Fitting parts

Tubing nut Tubing sleeve Tubing thread Machined profile for

forming the tubing sleeve on to the tube and making a seal

Fitting body

Tube preparation

Tube preparation For plastic tube use a standard tube cutter to give a

square end Ensure that the tube end is clean and free from surface

damage For metal tube use correct cutting equipment and ensure

the tube end is free from burrs

900

Tube assembly

Internal nut compression fitting

Tube assembly (compression fittings)

Place the tubing nut and sleeve on to the tube Push the tube in up to the tube stop and hold it there Screw the tubing nut until finger tight With a spanner tighten the nut by 1 to 13/4 turns

Slacken off and pinch down again

Tube assembly (compression fittings)

Place the tubing nut and sleeve on to the tube Push the tube in up to the tube stop and hold it there Screw the tubing nut until finger tight With a spanner tighten the nut by 1 to 13/4 turns

Slacken off and pinch down again

Tube assembly (compression fittings)

Place the tubing nut and sleeve on to the tube Push the tube in up to the tube stop and hold it there Screw the tubing nut until finger tight With a spanner tighten the nut by 1 to 13/4 turns

Slacken off and pinch down again

Tube assembly (compression fittings)

Place the tubing nut and sleeve on to the tube Push the tube in up to the tube stop and hold it there Screw the tubing nut until finger tight With a spanner tighten the nut by 1 to 13/4 turns

Slacken off and pinch down again

Tube assembly (compression fittings)

Place the tubing nut and sleeve on to the tube Push the tube in up to the tube stop and hold it there Screw the tubing nut until finger tight With a spanner tighten the nut by 1 to 13/4 turns

Slacken off and pinch down again

Tube assembly (compression fittings)

Place the tubing nut and sleeve on to the tube Push the tube in up to the tube stop and hold it there Screw the tubing nut until finger tight With a spanner tighten the nut by 1 to 13/4 turns

Slacken off and pinch down again

Tube assembly (compression fittings)

Place the tubing nut and sleeve on to the tube Push the tube in up to the tube stop and hold it there Screw the tubing nut until finger tight With a spanner tighten the nut by 1 to 13/4 turns

Slacken off and pinch down again

Tube assembly (compression fittings)

Pressure can then be applied

Tube removal

Internal nut compression fittings

Tube removal (compression fittings)

Turn off and exhaust the pressure Undo the tubing nut and pull out the tube The tubing sleeve is permanently swaged to the tube The joint can be made and remade many times If the tube is cut to shorten it a new sleeve is required but

the tubing nut can be reused

Tube removal (compression fittings)

Turn off and exhaust the pressure Undo the tubing nut and pull out the tube The tubing sleeve is permanently swaged to the tube The joint can be made and remade many times If the tube is cut to shorten it a new sleeve is required but

the tubing nut can be reused

Tube removal (compression fittings)

Turn off and exhaust the pressure Undo the tubing nut and pull out the tube The tubing sleeve is permanently swaged to the tube The joint can be made and remade many times If the tube is cut to shorten it a new sleeve is required but

the tubing nut can be reused

Tube removal (compression fittings)

Turn off and exhaust the pressure Undo the tubing nut and pull out the tube The tubing sleeve is permanently swaged to the tube The joint can be made and remade many times If the tube is cut to shorten it a new sleeve is required but

the tubing nut can be reused

Selection from the range

Compression fittings

Adaptors (compression fittings)

Male straight adaptors R, G, and NPTF threads

Female straight adaptors Male elbow adaptors Male tee adaptors Male side tee adaptors Nippled adaptors male Nippled adaptors female

metric and G threads Locknut and ring seal

fixing ( Hobbs )Elbow adaptorsTee adaptorsStraight connectors

Connectors (compression fittings)

Straight connectors Elbow connectors Tee connectors Y connectors 45O

Stem elbows Stem tees Side stem tees Bracketed fittings

Straight connectorsElbow connectorsY connectorsTee connectors

Selection (compression fittings)

Reducing connector Unequal connector

(expanding) Nippled connectors Metric to inch adaptors Nippled stem adaptors Bulkhead adaptor and

connectors Plugs Banjo bodies bolts and

assemblies

End