Steel Merchant Coupling ASTM A865

The A865 merchant coupling is a type of coupling used in various mechanical applications, particularly in the context of piping and fluid transfer systems. It is designed to connect two pipes or hoses securely while allowing for some flexibility and movement.

These couplings are widely used as linkages of pipes for the transportation of water, oil, air, gas, etc., There are two surface for steel merchant coupling ASTM A865, the one is black coating and another is hot dipped galvanized, the photos as below:

 

Specification/American Standard ASTM A865

1/8	0.56	3/4	NPSL
1/4	0.72	1-1/8	NPSL
3/8	0.88	1-1/8	NPSL
1/2	1.06	1-1/2	NPSL
3/4	1.31	1-9/16	NPSL
1	1.58	1-15/16	NPSL
1-1/4	1.90	2	NPSL
1-1/2	2.20	2	NPSL
2	2.75	2-1/16	NPSL
2-1/2	3.25	3-1/16	NPT
3	4.00	3-3/16	NPT
3-1/2	4.63	3-5/16	NPT
4	5.00	3-7/16	NPT
5	6.30	3-11/16	NPT
6	7.39	3-15/16	NPT

*All dimensions are in mm unit(inch unit data sheet is also available upon request).

*Download the tolerances and materials for ASTM A865 steel merchant  from Eathu "Price List and Techinical"

*Tolerances of dimensions are in conformance with ASME A865