Heavy Duty Rigid Coupling

Heavy duty rigid coupling, 500PSI rated, ductile iron housing, Grade 8.8 bolts, rigid integral connection, strong and reliable—ideal for fire protection, industrial, and heavy-duty piping systems.

Kerwords：

Category：

Couplings

Email：

WhatsApp：

Heavy Duty Rigid Coupling

Heavy Duty Rigid Coupling

Standard: ANSI/UL 213C

Housing Material: Ductile iron conforming to ASTM A-536, Grade 65-45-12.

Bolt & Nut: Grade 8.8 carbon steel electroplated bolts.

Gasket: EPDM, nitrile, silicone rubber, etc.

Rated pressure: 500PSI.

Surface: Hot dip galvanizing / Epoxy powder painting/Dip Coating, etc.

Color: Variable colors for choice.

Heavy duty rigid coupling, 500PSI rated, ductile iron housing, Grade 8.8 bolts, rigid integral connection, strong and reliable—ideal for fire protection, industrial, and heavy-duty piping systems.

Nominal Size mm/in	Pipe OD. mm/in	Working Pressure psi/Mpa	Dimensions mm/in			Bolt Size
Nominal Size mm/in	Pipe OD. mm/in	Working Pressure psi/Mpa	A mm/in	B mm/in	C mm/in	No.-Size mm
50 2	60.3 2.375	500 psi 3.45 Mpa	89 3.504	136 5.354	49 1.929	M10*55-2
80 3	88.9 3.5		120 4.724	176 6.929	50 1.969	M12*65-2
100 4	114 4.5		143 5.63	201 7.913	53 1.969	M16*85-2
125 5	139.7 5.5		170 6.693	238 9.37	53 1.969	M16*85-2
150 6	159 6.25		192 7.559	252 9.921	53 1.969	M16*85-2
150 6	165.1 6.5		198 7.795	258 10.157	53 1.969	M16*85-2
200 8	219.1 8.625		256 10.079	325 12.441	62 2.244	M20*100-2