Grooved Rigid Coupling

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Website: http://grooved-fittings.com/1-1-grooved-rigid-coupling.html

Ductile iron grooved fittings

Key Specifications

• Available sizes: 1~12 inch | DN25~DN300
• Working pressure: 300PSI/2.07MPa
• Certificate: FM/UL/CE certified
• Coating: epoxy/galvanized
• Color: red/orange/white, etc.
• Material: ductile iron

Specifications

Nominal Size	Pipe OD	Dimensions			Bolt Size
mm/in	mm/in	mm/in			No.-Size mm
		A mm/in	B mm/in	C mm/in
25/1	33.7/1.327	58/2.28	98/3.85	45/1.77	3/8*45-2
32/(1 1/4)	42.4/1.669	68/2.68	106/4.17	45/1.77	3/8*45-2
40/(1 1/2)	48.3/1.9	74/2.91	114/4.49	45/1.77	3/8*45-2
50/2	60.3/2.375	86/3.39	128/5.04	45/1.77	3/8*55-2
65/(1 1/2)	73/2.875	98/3.86	137/5.39	45/1.77	3/8*55-2
65/(1 1/2)	76.1/3	98/3.86	141/5.55	45/1.77	3/8*55-2
80/3	88.9/3.5	112/4.41	155/6.10	45/1.77	3/8*55-2
100/4	108/4.25	140/5.51	189/7.44	50/1.96	1/2*65-2
100/4	114.3/4.5	140/5.51	192/7.56	50/1.96	1/2*65-2
125/5	133/5.25	164/6.46	216/8.5	50/1.96	1/2*75-2
125/5	139.7/5.5	166/6.54	217/8.54	50/1.96	1/2*75-2
125/5	141.3/5.563	173/6.81	225/8.86	50/1.96	1/2*75-2
150/6	159/6.25	193/7.59	246/9.69	50/1.96	1/2*75-2
150/6	165.1/6.5	199/7.83	252/9.92	50/1.96	1/2*75-2
150/6	168.3/6.625	197/7.76	244/9.61	48/1.89	1/2*75-2
200/8	219.1/8.625	255/10.04	322/12.67	58/2.28	5/8*95-2
250/10	273/10.75	318/12.51	400/15.74	62/2.44	3/4*110-2
300/12	323.9/12.75	372/14.64	454/17.87	64/2.51	3/4*120-2

What are the advantages of grooved rigid couplings?

Grooved rigid couplings offer advantages such as easy installation and maintenance, compact structure, light weight, reliability, durability, and cost-effectiveness.

What is a grooved rigid coupling used for?

A grooved rigid coupling is a common pipe fitting used in building piping systems, industrial conveying piping systems, fire protection piping systems, etc., providing convenience for the installation and maintenance of piping systems.

Why choose grooved rigid or flexible couplings for fire sprinklers and other fire protection systems?

Grooved rigid and flexible couplings are among the most important equipment in the fire protection field. They enable quick and waterproof connections without the need for welding, threading, or using flanges, making installation convenient and reducing potential risks during the installation process.