Stainless Steel Quick Coupling Straub Coupling for Metal Pipe Connection

Restraint Stainless Steel Straub Pipe Coupling with Gear Ring

 
1. Product Introduction :

Our Stainless Steel Grip Straub Coupling is similar to STRAUB-METAL-GRIP which is a high performance coupling suitable for all pipe systems.
This Coupling is mainly used for building construction or civil engineering, power plants and etc .
This pipe joining coupling also absorbs unexpected field stress and applies perfect for seismic retrofits 

Stainless Steel Straub Grip Type Coupling with Axial Restraint is used to join Metal Pipe to Metal Pipe or 
Metal Pipe to Plastic Pipe or Plastic Pipe to Plastic Pipe .

All of our Coupling designated with GRIP have axial restraint .
In order to able to absorb the axial forces arising from the internal pressure, 
anchoring teeth engage in the relevant pipe materials and provide a mechanical frictional connection.
If the axial tensile load on the pipe increases due to increasing internal pressure, 
the teeth engage deeper inot the pipe surface .
 
These flexible and lightweight Couplings come fully assembled and can be installed without using any special tools .

2. Proudct Features :

*   body, bolt, nuts made of stainless steel 
*   flexible pipe connection 
*   allow angular deflection but don't provide restraint 
*   anticorrosive
*   easy installation and disassembly 
*   free of welding and fire risk 

3.  Dimension Sheet : 

3.1  Single-Section Stainless Steel Repair Coupling

 

S/N	O. D Range	Working Pressure	Clamp Length (mm)		Size D	Size H	Bolt	Bolt Torque
	mm	bar	Normal(L1)	Extended(L2)	mm	mm	mm	Nm
1	17-19	32	57		35	55	M6	10
2	21-23	32	57		45	65	M6	10
3	24.5-25.5	32	57		50	70	M6	10
4	26-28	32	57		50	70	M6	10
5	31.5-32.5	32	57		55	75	M6	10
6	33-35	32	57		55	75	M6	10
7	39.5-41.5	32	57		55	75	M6	10
8	42-44	32	57	100	65	85	M6	15
9	44-45	32	57	100	66	86	M6	15
10	47-49	32	57	100	70	90	M6	15
11	53.6-54.6	32	57	100	70	90	M8	30
12	56.3-57.7	32	57	100	80	100	M8	30
13	59-62	32	80	139	85	105	M8	30
14	62-64	32	80	139	85	105	M8	30
15	75-78	28	80	139	100	120	M8	30
16	79-81	28	80	139	100	120	M8	30
17	88-92	28	107	203	110	130	M10	50
18	106-110	28	107	203	130	150	M10	50
19	109-111	28	107	203	130	150	M10	50
20	112-116	28	107	203	135	155	M10	50
21	116-119	28	107	203	140	160	M10	50
22	123-126	28	107	203	150	185	M10	50
23	131-134	28	107	203	160	190	M10	50
24	137-143	28	116	203	165	195	M12	80
25	157-161	24	116	203	185	215	M12	80
26	163-167	24	116	203	190	215	M12	80
27	166-170	24	116	203	195	225	M12	80
28	168-172	24	116	203	195	225	M12	80
29	198-201	16	155	255	240	270	M14	100
30	217-221	16	155	255	250	280	M14	100
31	250-254	16	155	255	285	315	M14	100
32	271-275	16	155	255	305	335	M14	100
33	313-317	14	155	255	340	375	M14	100
34	323-327	14	155	255	355	385	M14	100
35	354-358	14	155	255	385	420	M14	100
36	375-379	14	155	255	410	440	M14	100

3.2  Double-Section Stainless Steel Repair Coupling

S/N	O. D Range	Ship	Industry	Length (mm)		Dimension		Screw	Torque
	mm	PN (bar)	WP (bar)	Normal(L1)	Extended(L2)	D(mm)	H(mm)	mm	Nm
1	21-23	16	32	57		35	50	M6	15
2	24.5-25.5	16	32	57		50	70	M6	15
3	26-28	16	32	57		50	70	M6	15
4	31.5-32.5	16	32	57		55	75	M6	15
5	33-35	16	32	57		55	75	M6	15
6	40-42	16	32	57		55	75	M6	15
7	42-44	16	32	57		65	85	M6	15
8	44-45	16	32	57		65	85	M6	15
9	47-49	16	32	57	100	70	90	M6	15
10	53.3-54.6	16	32	57	100	70	90	M8	30
11	56.3-57.7	16	32	57	100	80	100	M8	30
12	59-62	16	32	80	139	85	105	M8	30
13	62-64	16	32	80	139	85	105	M8	30
14	75-78	14	28	80	139	100	120	M8	30
15	79-81	14	28	80	203	100	120	M8	30
16	88-92	14	28	107	203	110	130	M10	50
17	106-110	14	28	107	203	130	150	M10	50
18	109-111	14	28	107	203	130	150	M10	50
19	112-116	14	28	107	203	135	155	M10	50
20	116-119	14	28	107	203	140	160	M10	50
21	123-126	14	28	107	203	150	185	M10	50
22	131-134	14	28	107	203	160	190	M10	50
23	137-143	14	28	116	203	165	195	M12	80
24	157-161	12	24	116	203	185	215	M12	80
25	163-167	12	24	116	203	190	215	M12	80
26	166-170	12	24	116	203	195	225	M12	80
27	168-172	12	24	116	203	195	225	M12	80
28	198-201	8	16	155	255	240	270	M14	100
29	217-221	8	16	155	255	250	280	M14	100
30	250-254	8	16	155	255	285	315	M14	100
31	271-275	8	16	155	255	305	335	M14	100
32	313-317	7	14	155	255	340	375	M14	100
33	323-327	7	14	155	255	360	390	M14	100
34	354-358	7	14	155	255	385	420	M14	100
35	375-379	7	14	155	255	410	440	M14	100

4. Rubber Sealing Material 
 

Rubber Sealing Sleeve Material Chart
Material	Suit for
EPDM	Temperature Range : -20ºC to +120ºC                                               Suit for water, waster water, air, solid and chemicals fluids
NBR	Temperature Range : -20ºC to +120ºC                                               Suit for gas,oil, crude oil and other hydrocarbon fluids
MVQ(Silicon Rubber)	Temperatuer Range: -75ºC to +200ºC                                          Sunlight resistant, heat resistant, high temperature isolation
VITON( Fluoro Rubber)	Temperature Range: -95ºC to +300ºC                                              Heat resistant, chemical attack resistant

Note: you should choose the kind of rubber material based on the type of fluids of your pipeline .

5. Company Profile :



6. Certificate :


7. Project Cases :

FAQ
1.  Do Straub Coupling offer axial flexibility ? 
Yes,  Straub Flex Couplings offers axial flexibility in case the pipe ends move towards or away from each other .
These couplings can accommodate pipe shifts while ensuring a leak-tight seal for the passing media ?
2.  Do these couplings require welding ?
No, straub couplings can be readily installed onto the pipes with simple tools and do not require welding for leak-tight seals. 
These couplings can be fixed just by screwing bolts onto the pipe using a torque wrench.
3.  Are Straub Coupling reusable ?
Yes, our Straub Coupling are reusable as they have wrap-around design.
4.  What pipes are ideal for Straub Couplings ?
They are ideal for plain end pipes made from ductile iron, steel, stainless steel, PVC, FRP, CPP, CPVC, copper and concrete.
5.  Do these couplings require lubrication?
No,  straub couplings have built-in gaskets and do not require additional lubricants while installation.
6.  What applications are these couplings suitable for ?
They are ideal for vacuum, pressure and suction lines.