Flexible Grooved Piping System Pipe Coupling

Flexible Grooved Piping System Pipe Coupling
Flexible Grooved Piping System Pipe Coupling
Flexible Grooved Piping System Pipe Coupling
Flexible Grooved Piping System Pipe Coupling
Flexible Grooved Piping System Pipe Coupling
Flexible Grooved Piping System Pipe Coupling
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Flexible couplings for grooved piping systems are intended to accommodate controlled movement at the pipe joint. Pipe and fittings joined with a flexible coupling are allowed to expand, contract, or deflect from the center line within limits established by the coupling interface with the pipe. The type of pipe, wall thickness, pressure, hanging and laying requirements, as well as the type of groove selected all contribute to the amount of movement the pipe system can do. After the pipe ends are grooved, a rubber gasket that is deemed suitable for the system is stretched over the pipe ends. The coupling segments are then placed over the gasket, and the bolts and nuts are fastened, resulting in a restrained, and leak free joint. Couplings and fittings are cast from ductile iron, meeting ASTM A536 Grade 65-45-12 (tensile-yield-elongation) standards. These light duty flexible grooved couplings are suitable for fire protection services, water supply systems, and other process systems requiring a higher work pressure.

Features
Designed for service up to 300psi depending on the size, the coupling forms a flexible grooved end pipe joint connection and reduces noise and vibration transmissions in the pipeline.

1. Flexible couplings in straight runs should be supported as close to the coupling as possible, or within a distance of 1/6 the span, and evenly spaced.
2. Flexible couplings provide either axial or longitudinal movement. The available movement for roll-grooved joints is 1/2 that of cut groove dimensions per ANSI/AWWA C606-06.
3. When pre-setting power nut drivers, the following torque should not be exceeded. Excessive tightening of the nuts can result in joint failure.
4. Coating options: epoxy, paint, dacromet, hot-dip galvanized

Dimension Drawing
Technical Data
Flexible Coupling XGQT2
Nominal Size mm/in Pipe O.D mm/in Dimensions Bolt Working pressure Psi
ΦD L H inch/mm
mm mm mm
25 33.7 55 97 45 3/8×1-1/2
(M10×40)
300
1 1.327
32 42.4 63.5 107.5 45 3/8×1-3/4
(M10×45)
11/4 1.669
40 48.3 69 114 45
11/2 1.9
50 57 83.6 124 46 3/8×2-1/8
(M10×55)
2 2.244
50 60.3 83.6 124 46
2 2.375
65 73 98 137 46
21/2 2.875
65 76.1 98 139 46
21/2 3
80 88.9 114 156 46
3 3.5
100 108 138 186 50 1/2×2-5/8
(M12×65)
4 4.25
100 114.3 142 189 50
4 4.5
125 133 164 213 50
5 5.25
125 139.7 170 222 50
5 5.5
125 141.3 170 218 50
5 5.563
150 159 192 244 50
6 6.25
150 165.1 196 244 50
6 6.5
150 168.3 198 251 50
6 6.625
200 216.3 254 340 62 3/4×3-1/2
(M20×90)
8 8.515
200 219.1 256 316 60 5/8×3-1/8
(M16×80)
8 8.625
250 267.4 313 400 64 3/4×3-1/2
(M20×90)
10 10.527
250 273.0 319 393 64 3/4×3-1/2
(M20×90)
10 10.75
300 318.5 368 464 64 7/8×4-1/3
(M22×110)
12 12.539
300 323.9 374 453 65 3/4×4-1/3
(M20×110)
12 12.75
350 355.6 410 510 75 7/8×4-1/3
(M22×110)
14 14
400 406 480 597 122 0
16 16
Other Image Gallery of Lightweight Grooved Flexible Coupling

LEDE company design and manufacture grooved piping system jointing fittings, is a leading China flexible grooved pipe coupling manufacturer and supplier, provide pipe jointing and flow control products of fire protection system and water work system. There are different sizes of flexible couplings for grooved piping system, made in accordance with UL, CE, ISO certificates, etc. Engineered with complete automation equipment and manufacturing expertise, LEDE company provides quality ductile iron pipe coupling as well as custom firefighting and water supply solutions based on the client needs.

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