Quick-Mech 91 Type Rigid Coupling

Standard: ASTM A536, UL / FM, AWWA C606

Type: Quick-Mech 91 Type Rigid Coupling

Connection: Grooved ends

Body material: Ductile iron GGG40/50

Gasket material: EPDM

Bolt material: Carbon steel, zinc plated

Pressure rating: PN16 / 300 PSI

Temperature range: -20℃ ~ 120℃

Application: Rigid pipeline connection, fire protection, waterworks

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Product details

Product Overview

100TONG Model 91 is a Ductile Iron Grooved Rigid Coupling.Model 91 is designed for use on Schedule 10, Schedule 30, Schedule 40, GB/T 3091, FF, MF, EF, HF, ISO 4200D, ISO 4200E, ISO 4200F, ISO 4200G, EN 10217-1, EN 10220, and KS D3507 pipes.

Sizes of Model 91 range from 25mm–300mm / 1″–12″.Its pressure rating conforms to the list specified by UL.

The quick coupling is designed with a special structure. There is no need to disassemble bolts, nuts, or gaskets during installation. The pipe can be directly inserted into the coupling, and you only need to tighten the bolts and nuts. Installation time is just 1/3 of that for standard couplings.

In addition, there is no risk of losing bolts and nuts during installation, which often occurs with standard couplings.

roduct Applications

Fire protection sprinkler and standpipe systems
Municipal water supply and transmission pipelines
Industrial process water and circulating pipelines
HVAC piping systems
Construction and mechanical piping
Pipeline sections requiring fixed rigid connection

Installation and Maintenance

Inspect pipe grooves, gasket and coupling body before installation
Clean pipe ends and install gasket properly
Position coupling and align two pipe ends evenly
Tighten bolts uniformly with a torque wrench
Ensure no axial or angular movement after installation
Regularly check bolt tightness during system inspection
No additional maintenance required under normal operation

Nominal Size mm/in	Pipe O.D mm/in	Working Pressure PSI/MPa	Bolt Size No.-Size mm	Bolt Size No.-Size inch	Dimensions K (mm)	Dimensions K (inch)	Dimensions L (mm)	Dimensions L (inch)	Dimensions H (mm)	Dimensions H (inch)	UL
25/1	33.7 / 1.327	300 / 2.07	2-M10×55	2-3/8×55	63	2.48	95	3.74	47	1.85	UL
32 / 1¼	42.4 / 1.669	300 / 2.07	2-M10×55	2-3/8×55	72	2.83	104	4.09	47	1.85	UL
40 / 1½	48.3 / 1.900	300 / 2.07	2-M10×55	2-3/8×55	77	3.03	111	4.37	47	1.85	UL
Feb-50	60.3 / 2.375	300 / 2.07	2-M10×55	2-3/8×55	91	3.58	123	4.84	47	1.85	UL
65 / 2½	73.0 / 2.875	300 / 2.07	2-M10×60	2-3/8×60	103	4.06	137	5.39	47	1.85	UL
65 / 2½	76.1 / 3.000	300 / 2.07	2-M10×60	2-3/8×60	107	4.21	141	5.55	47	1.85	UL
Mar-80	88.9 / 3.500	300 / 2.07	2-M10×60	2-3/8×60	119	4.69	155	6.1	48.5	1.91	UL
100 / 4	108 / 4.250	300 / 2.07	2-M12×65	2-1/2×65	144	5.67	178	7.01	51.5	2.03	UL
100 / 4	114.3 / 4.500	300 / 2.07	2-M12×65	2-1/2×65	149	5.87	185	7.28	51.5	2.03	UL
125 / 5	139.7 / 5.500	300 / 2.07	2-M12×75	2-1/2×75	177	6.97	214	8.43	52	2.05	UL
125 / 5	141.3 / 5.563	300 / 2.07	2-M12×75	2-1/2×75	178	7.01	215	8.46	52	2.05	UL
150 / 6	159.0 / 6.250	300 / 2.07	2-M12×80	2-1/2×80	196	7.72	235	9.25	52.5	2.07	UL
150 / 6	165.1 / 6.500	300 / 2.07	2-M12×80	2-1/2×80	201	7.91	240	9.45	52.5	2.07	UL
150 / 6	168.3 / 6.625	300 / 2.07	2-M12×80	2-1/2×80	205	8.07	244	9.61	52.5	2.07	UL
200 / 8	216.3 / 8.516	300 / 2.07	2-M16×100	2-5/8×100	259	10.2	313	12.32	64	2.52	UL
200 / 8	219.1 / 8.625	300 / 2.07	2-M16×100	2-5/8×100	264	10.39	316	12.44	64	2.52	UL
250 / 10	267.0 / 10.512	300 / 2.07	2-M22×155	2-7/8×155	328	12.91	388	15.28	68	2.68	UL
250 / 10	273.0 / 10.748	300 / 2.07	2-M22×155	2-7/8×155	334	13.15	395	15.55	68	2.68	UL
300 / 12	318.4 / 12.535	300 / 2.07	2-M22×155	2-7/8×155	381	15	444	17.48	68	2.68	UL
300 / 12	323.9 / 12.752	300 / 2.07	2-M22×155	2-7/8×155	387	15.24	451	17.76	68	2.68	UL