The Grip-GF combines with functional design with the latest technologies. The GRIP-GF is based on the proven coupling technology, which has been developed for the shipbuilding industry, also is successfully used for tunneling, fire hose applications etc. In the event of a fire, GRIP-GF coupling protectively enclosing the coupling. During this process, the coupling retains its full operational capability without any damage.

Suitable for pipes O.D φ26.9-φ273mm

Suitable for pipes material: Carbon steel, stainless steel, copper, cunifer, GRE, and other material

GRIP-GF Technical parameters

Pipe outside diameter		Clamping range	Working pressure		Product O.D.	Width	Distance between sealing slips	Setting gap between pipe ends		Torque rate	Bolt
O.D.		Min-Max			Φ D	B	C	without strip insert	with strip insert (Max)
（mm）	（In.）	（mm）	(bar)	(bar)	(mm)	(mm)	(mm)	(mm)	(mm)	(Nm)	M
26.9	1.059	26-28	18	46	55	61	19	5～8	10	8	M6×2
30	1.181	29-31	18	46	58	61	19	5～8	10	8
33.7	1.327	32-35	18	40	62	61	19	5～8	10	8
38	1.496	37-39	18	35	69	61	26	5～8	10	10	M8×2
42.4	1.669	41-43	18	32	73.3	61	26	5～8	10	10
44.5	1.752	44-45	18	32	75.4	61	26	5～8	10	10
48.3	1.902	47-49	18	32	79.2	61	26	5～8	10	10
54	2.126	53-55	18	32	85	76	37	5～10	15	10
57	2.244	56-58	18	32	88	76	37	5～10	15	10
60.3	2.374	59-61	18	32	91.2	76	37	5～10	15	10
66.6	2.622	64-68	18	32	100.7	95	37	5～10	25	20	M8×2
70	2.756	68-71	18	32	104	95	41	5～10	25	20
73	2.874	72-74	18	32	107	95	41	5～10	25	20
76.1	2.996	75-77	18	32	110.2	95	41	5～10	25	20
79.5	3.130	78-81	18	32	113.6	95	41	5～10	25	20
84	3.307	83-85	18	32	118	95	41	5～10	25	20
88.9	3.500	88-90	18	32	123	95	41	5～10	25	20
100.6	3.961	99-102	16	32	135	95	41	5～10	25	25
101.6	4.000	100-103	16	32	135.7	95	41	5～10	25	25
104	4.094	103-105	16	32	139	95	41	5～10	25	25
108	4.252	106-109	16	32	142	95	41	5～10	25	25
114.3	4.500	113-116	16	32	148.4	95	41	5～10	25	25
127	5.000	126-128	16	30	171	110	54	5～10	35	40	M10×2
129	5.079	128-130	16	25	173	110	54	5～15	35	40
130.2	5.126	129-132	16	25	174.3	110	54	5～15	35	40
133	5.236	131-135	16	25	177	110	54	5～15	35	40
139.7	5.500	138-142	16	25	183.8	110	54	5～15	35	40
141.3	5.563	140-143	16	25	185.4	110	54	5～15	35	40
154	6.063	153-156	16	25	196.4	110	54	5～15	35	40
159	6.260	158-161	16	25	203	110	54	5～15	35	40
168.3	6.626	167-170	16	25	209	110	54	5～15	35	40
193.7	7.626	192-196	16	22	235	142	80	15～20	40	60	M12×2
200	7.874	198-202	10	22	242	142	80	15～20	40	60
204	8.031	202-206	10	22	252	142	80	15～20	40	60
206	8.110	204-208	10	22	254	142	80	15～20	40	60
219.1	8.626	216-222	10	22	270	142	80	15～20	40	60
244.5	9.626	242-247	10	22	295	142	80	15～20	40	60
250	9.843	247-253	10	20	299	142	80	15～20	40	60
254	10.000	251-257	10	20	302	142	80	15～20	40	60
256	10.079	253-259	10	20	304	142	80	15～20	40	60
267	10.512	264-270	10	20	317	142	80	15～20	40	60
273	10.748	270-276	10	20	323	142	80	15～20	40	60

GRIP-GF Material Selection 

Material                     Components	V1	V2	V3	V4	V5	V6
Casing	AISI 304	AISI 316L	AISI 316TI	AISI 316L	AISI 316TI
Bolts	AISI 304	AISI 316L	AISI 316L	AISI 304	AISI 304
Bars	AISI 304	AISI 316L	AISI 316L	AISI 304	AISI 304
Anchoring ring	AISI 301	AISI 301	AISI 301	AISI 301	AISI 301
Strip insert (optional)	AISI 301	AISI 301	AISI 301	AISI 301	AISI 301

Material of rubber gasket 

Material of seal	Media	Temperature range
EPDM	All quality of waters,waste water, air, solids and chemical products	-30℃ up to+120℃
NBR	Water,gas, oil, fuel and other hydrocanbons	-30℃upto+120℃
MVQ	High temperature liquid, oxygen, ozone, water and so on	-70℃ up to+260℃
FPM/FKM	Ozone, oxygen, acids,gas, oil and fuel (only with strip insert)	95℃up to+300℃

The GRIP-GF represents the ultimate in high security fire protected mechanical pipe couplings.

The advantage of grip fire proof type coupling

1. No thick smoke and smell after burning rubber when fire, will not be choking.

2. Not only keep coupling and pipe well, also protect personnel from rubber smoke dust and smell.

Application:

Shipbuilding industry

Tunneling

Fire hose pipelines

Engine development