Compression Fittings
Internal nut type
Compression fittings
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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)
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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
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The metric range
4, 5, 6, 8, 10, 12, 15, 16, 18,
22, 28 mm o/d
The inch range
1 / , 5/ , 3/ , 1/ , 5/ , 3/ , 1/ ,
8
32
16
4
16
8
2
5/ , 3/ o/d
8
4
Fitting parts
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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
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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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)
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Pressure can then be applied
Tube removal
Internal nut compression fittings
Tube removal (compression fittings)
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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)
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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)
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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)
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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)
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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 adaptors
Tee adaptors
Straight connectors
Connectors (compression fittings)
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Straight connectors
Elbow connectors
Tee connectors
Y connectors 45O
Stem elbows
Stem tees
Side stem tees
Bracketed fittings
Straight connectors
Elbow connectors
Y connectors
Tee connectors
Selection (compression fittings)
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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