compression fittings
Post on 31-Dec-2015
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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
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