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Address: No. 368 Youyi St. Shijiazhuang, Hebei, China
Contact name:Maria Lee
SHIJIAZHUANG DEYE PIPING INDUSTRY CO., LTD（Pipefittings Department) |
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BIG SIZE DN600 DN800 RUBBER EXPANSION JOINT WITH FLEXIABLE TIE RODS
.Flexible rubber joints are also known as shock absorbers, soft
joints, rubber soft connections, pipeline shock absorbers, etc.
It is commonly used in civil building water supply and drainage
engineering, fire pipe network pump room unit pipeline connection,
sewage treatment pipeline connection, high-pressure gas-liquid
chemical medium transportation, petroleum, ships, etc. to solve the
deviation of
various pipelines, axial expansion and different centricity. It is
the most commonly used rubber joint for pipeline fittings in the
world today.
It has the advantages of reducing pipeline noise, good sealing,
light weight, convenient installation and maintenance, and long
service life.
The Limited tie rods installed on the rubber expansion joint are used to buffer the thrust from internal pressure and in pretension mounting
Material of main Spare Parts
| Cover | EPDM, NBR, Hypalon, NR, PTFE |
| Reinforcing Fabric | Nylon |
| Tube | EPDM, NBR, Hypalon, NR, PTFE |
| Retain Rings | Steel |
| Flange | Carbon Steel, Stainless Steel, Duplex SS |
Supplying Scope
| Size Range | DN50-DN800 |
| PN10 PN16 PN25 for rubber |
| PN10, PN16, PN25, PN40, PN64, PN100 for metal bellow type |
Design Pressure
| Working Pressnre(Bar) | 10 | 16 | 25 |
| Burst pressure(Bar) | 30 | 48 | 55 |
| Vacuam(mmHg) | 400 | 650 | 750 |
Technology/ Technical Data Sheets
Spherical Single Sphere Rubber Expansion Joint
Dimension for Rubber joint PN16
| Nominal diameter DN | Length L( mm)
| NO.of bolt n | Flange Holes Dia. | Dia. Of bolt Circle
| Axial displacement (mm) | Lateral displacement
| Angle of deflection
| |||
| (mm) | (in) | Stretch | Compression | |||||||
| 32 | 11/4 | 95 | 4 | 17.5 | 100 | 6 | 9 | 9 | 15° | |
| 40 | 11/2 | 95 | 4 | 17.5 | 110 | 6 | 10 | 9 | 15° | |
| 50 | 2 | 105 | 4 | 17.5 | 125 | 7 | 10 | 10 | 15° | |
| 65 | 21/2 | 115 | 4 | 17.5 | 145 | 7 | 13 | 11 | 15° | |
| 80 | 3 | 135 | 130 | 8 | 17.5 | 160 | 8 | 15 | 12 | 15° |
| 100 | 4 | 150 | 135 | 8 | 17.5 | 180 | 10 | 19 | 13 | 15° |
| 125 | 5 | 165 | 160 | 8 | 17.5 | 210 | 12 | 19 | 14 | 15° |
| 150 | 6 | 180 | 185 | 8 | 22 | 240 | 12 | 20 | 22 | 15° |
| 200 | 8 | 190 | 200 | 8 | 22 | 295 | 16 | 25 | 22 | 15° |
| 250 | 10 | 230 | 240 | 12 | 22 | 350 | 16 | 25 | 22 | 15° |
| 300 | 12 | 245 | 260 | 12 | 22 | 400 | 16 | 25 | 22 | 15° |
| 350 | 14 | 265 | 16 | 26 | 460 | 16 | 25 | 22 | 15° | |
| 400 | 16 | 265 | 16 | 26 | 515 | 16 | 25 | 22 | 15° | |
| 450 | 18 | 265 | 20 | 26 | 565 | 16 | 25 | 22 | 15° | |
| 500 | 20 | 265 | 20 | 30 | 620 | 16 | 25 | 22 | 15° | |
| 600 | 24 | 265 | 20 | 26 | 725 | 16 | 25 | 22 | 15° | |
| 700 | 28 | 260 | 24 | 30 | 810 | 16 | 25 | 22 | 10° | |
| 800 | 32 | 260 | 24 | 30 | 920 | 16 | 25 | 22 | 10u | |
| 900 | 36 | 260 | 24 | 30 | 1020 | 16 | 25 | 22 | 10w | |
| 1000 | 40 | 260 | 28 | 30 | 1120 | 16 | 25 | 22 | 10° | |
Dimension of Rubber joint 150LBS
| Nominal diameter DN | Length L(mm) | b | NO.of bolt | Dia. Of Flange holes | Dia. Of Bolt Circle. PCD | Axial displacement | Lateral displacement | Angle of deflection | |||
mm | |||||||||||
| (mm)(in) | L1 | L2 | stretch | Compression | |||||||
| 25 | 1 | 152 | 130 | 14 | 4 | 16 | 79.4 | +9.5 | 13 | ±13 | ±15° |
| 32 | 1 1/4 | 152 | 130 | 16 | 4 | 16 | 89 | +9.5 | 13 | ±13 | ±15° |
| 40 | 1-1/2 | 152 | 130 | 16 | 4 | 16 | 98.5 | +9.5 | -13 | ±13 | ±15" |
| 50 | 2 | 152 | 130 | 16 | 4 | 19 | 121 | +9.5 | 13 | ±13 | ±15" |
| 65 | 2-1/2 | 152 | 130 | 18 | 4 | 19 | 139.5 | +9.5 | -13 | ±13 | ±15 |
| 80 | 3 | 152 | 130 | 18 | 4 | 19 | 153 | +9.5 | -13 | ±13 | ±15° |
| 100 | 4 | 152 | 130 | 18 | 8 | 19 | 190 | +9.5 | 16 | ±13 | ±15° |
| 125 | 5 | 152 | 130 | 20 22 | 8 | 22.5 | 216 | +9.5 | -16 | ±13 | ±15° |
| 150 | 6 | 152 | 130 | 8 | 22.5 | 242 | +9.5 | -16 | ±13 | ±15° | |
| 200 | 8 | 152 | 130 | 22 | 8 | 22.5 | 298 | +9.5 | -16 | ±13 | ±15° |
| 250 | 10 | 203 | 130 | 24 | 12 | 25.5 | 362 | +13 | 16 | ±19 | ±15° |
| 300 | 12 | 203 | 130 | 24 | 12 | 25.5 | 432 | +13 | 19 | ±19 | ±15° |
| 350 | 14 | 203 | 200 | 26 | 12 | 28.5 | 476 | +13 | -19 | ±19 | ±15° |
| 400 | 16 | 203 | 200 | 28 | 16 | 28.5 | 540 | +13 | -19 | ±19 | ±15° |
| 450 | 18 | 203 | 200 | 30 | 16 | 32 | 578 | +13 | -19 | ±19 | ±15° |
| 500 | 20 | 203 | 200 | 30 | 20 | 32 | 634 | +13 | -19 | ±19 | ±15° |
| 600 | 24 | 254 | 260 | 32 | 20 | 35 | 749.5 | +13 | -19 | ±19 | ±15° |
| 800 | 32 | 254 | 260 | 36 | 24 | 30 | 920 | +13 | -19 | ±19 | ±15° |
FEATURES
Absorb Axial movements (extension and compression).
Axial movement is the change in dimensional length of the bellows
from its free length in a
direction parallel to its longitudinal axis.
Absorb Lateral movements.
Lateral movement is the relative displacement of one end of the
bellows to the other end in a direction perpendicular to its
longitudinal axis.
Absorb Angular and Torsional Movements.
Angular movement is the rotational displacement of the longitudinal
axis of the bellows toward a point of rotation. Torsion refers to
twisting one
end of the bellows with respect to the other end, about the bellows
centerline.
Reduce Vibration.
Rubber expansion joints isolate or reduce vibration caused by
equipment. The transmission
of vibration is reduced and they protect equipment from these
adverse effects
Dampen Sound Transmission.
Rubber expansion joints tend to dampen transmission of sound
because of the steel rubber interface of joints and mating flanges.
Manual and Install Notes of the Rubber Joint
1, The installation of expansion joints shall be in accordance with the expansion of piping construction drawings and installation instructions requested
2, Install expansion joint of the pipeline must be approx. to increase fixed by the orientation
and expansion joints can be made to play a role, so orientation and fixation of the settings must be in strict accordance with the design departments of the technical information. For orientation, the principle of setting a fixed support, please see "Bellows Expansion joints Installation Guide."
3, With a bellows expansion joint is formed with a thin stainless steel plate, so lost in moving, hoisting and welding should be careful not to hit the period, scratch, arc,weld spatter and other reasons to bellows damage
4, Should be removed before installation and piping bellows foreign body to ensure normal movement bellows
5, On a flow of media requests for expansion joint should be required to install the flow arrows
6, In order to make bellows in good working condition,can not install expansion joints in the deformation, including axial, lateral, turn transfer pipe installation error
7, Expansion joints installed, running in the system before moving to remove all painted yellow lose a fixed screw
8, Fabric fiber expansion joint is not subject to the tensile displacement due to the installation to the proper conduct of the pre-compression, the pipeline can not deflection, displacement and axial extension, should be noted that flexible ring of protection against scratches, installed as soon as possible to dismantle support board, so that in normal working condition
Application:
Oil & gas, Desalination, Cooling systems, Pumps, Chemical
plants, Heating, ventilating
and air conditioning, Shipbuilding, Off-shore applications, Water
treatment plants
Sewage, Sanitary piping systems, Pulp and paper plants, Piping
systems for chilled or hot water, Cooling systems power generation,
Phosphate plants, Potable water, Food process
