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AL Type (Universal purpose couplings)

Low Pressure , Single valve Type

Widely used and accepted couplings for air line connection.
Important steel parts are hardened for high durability.
Socket have automatic shut-off valve so that fluid in the socket will not run out on disconnection.

Low Pressure , Single valve Type

Low Pressure , Single valve Type

Note:

Types 20( 21,22 ,23 and 24 types ) have sockets and plugs that can be interchanged and types 40 are the same, but not interchangeable between 20 and 40.

Caution:

For vibration or impact tools use , put intermediate hose ( about 30 cm ) between plug and tool.
Fluid should flow from socket to plug.
Do not use as swivels also don't force couplings continuously rotating.

Specification

Type		CAL20				CAL40
Model		21	22	23	24	44	46	48
Nominal size		1/8"	1/4"	3/8"	1/2"	1/2"	3/4"	1"
Body material		Steel (Chrome-plated) , Brass(BSBM) , Stainless steel(SUS303 , SUS304)
Connection		Female thread (F) , Male thread (M) , Hose nipple(H) , Nut type (A , B)
Normal pressure, Max. pressuse, MPa(kgf/cm²)	Steel , Stainless steel	1.5 ( 15) 2.0 ( 20 )
Normal pressure, Max. pressuse, MPa(kgf/cm²)	Brass	1.0 ( 10 ) 1.5 (15)
Packing material	Standard	Nitrile rubber (NBR) : −20°C to + 80°C
Packing material	Option	Viton (FPM) : −20°C to + 180°C
Applicable fluid	Steel	Air , Oil , etc.
Applicable fluid	Brass , Stainless steel	Air , Oil , etc.
Applications		Air tools , Air piping , Water piping , etc.

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