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Flexible Rubber Joint, Rubber Expansion Joint, Pipe Fitting
| Model No. : | GJQ(X)-SF |
|---|---|
| Brand Name : | liwei |
Zhengzhou, Henan, China
- Manufacturer
- OEM service
- Platform Certification
- SGS Certification
Product description
Rubber Joint Specification:
1.24 years manufacturing experience
2. ISO9001, ISO14001
3. Import rubber
4. China National Standards Drafting Unit of Rubber Joint
5. Qualified Joint Supplier in Nuclear Power Plant
1)Rubber Joint Performance
The Liwei GJQ(X)-SF Double Sphere Rubber Expansion Joint are double sphere designed with integral rubber flanges for tough, demanding industrial applications, as found in: Chemical/Petrochemical Plants, Industrial Process Piping Systems, Marine Services, Power Generation Plants, Pulp/Paper Plants, Steel Mills, Water/Wastewater and Pollution Control Systems.
Installed next to mechanical equipment or between the anchor points of a piping system to:
(1) Absorb Pipe Movement/Stress
(2) Reduce System Noise
(3) Isolate Mechanical Vibration
(4) Compensate Alignment/Offset
(5) Eliminate Electrolysis,
(6) Protect Against Start-Up Surge Forces.
The Liwei GJQ(X)-SF Double Sphere Rubber Expansion Joint is a twin sphere design with more length, the supply range is from 32mm to 3000mm, and design pressure can be 1.0MPa/1.6MPa/2.5MPa. Compared to Single Sphere Rubber Joint(GJQ(X)-DF- I, GJQ(X)-DF- II ), mechanical and acoustical performance can be almost double by changing to the most commonly specified twin sphere construction. Twin sphere designs are more flexible and allow greater movement.
2) Rubber Joint Application Range
Equipped with the excellent comprehensive performances of flexible rubber joint, Liwei GJQ(X)-SF Double Sphere Rubber Expansion Joint can be used for lift and transportation of raw water and sewage, transportation of water supply, cooling cycle water of thermal power plant, condensate water of metallurgy industry and chemical materials of chemical industries, cooling and dilution of oil and chemical industries and flexible connection of other industries.
It is also suitable to transport all grain and powder material and gas for its high abrasive resistance.
In addition, special notifications are hereby conducted for design units and clients so as to ensure the project quality. Please note to install anti-break stop device, if Liwei GJQ(X)-SF Double Sphere Rubber Expansion Joint are designed to install close to pump exit nozzle and pipes' corner. If your pipes need to be buried, please use our patent-buried protective devices. In a word, remark requirement for use, and we will provide satisfactory service to you.
3) Rubber Joint Features and Benefits:
1, Versatile hand-built construction. Made in China
2, Bellows to Absorb directional movement
3, Absorb vibration, noise and shock
4, Bellows Compensates for misalignment
5, More compensation capability
6, Embedded steel reinforce ring enable the pressure resistance
7, Solid galvanized steel floating flanges speed the installation time
8, Integral rubber flange design, prevent pulling out
9, High tensile aircraft cable is embedded in the raised face rubber ends to prevent pull out and avoids the sharp cutting edge of solid steel rings
10, No gaskets required; DIN PN10/16 drilling standard, other flange drilling available, including ANSI 150lb/300 lb, BS, and JIS
Material lists
No
Name
Material
1
Inner rubber
IIR\CR\EPDM\NR\NBR
2
Outer rubber
IIR\CR\EPDM\NR\NBR
3
Framework layer
Polyester cord fabric
4
Reinforcing bar
Polyester cord fabric
5
Flange
Q235
6
Reinforcing ring
Steel wire rope
Physical and Mechanical Properties Form
No
Item
Index
Test value
Inner rubber
Outer rubber
1
≥Tensile strength(MPa)
12
13
13.6
2
≥Break strength (%)
450
500
564
3
≤Break permanent deformation (%)
25
30
22
4
≤Brittleness temperature
-30
-30
-40
5
≥Viscosity(KN/m)
2.0
2.0
5.6
6
Aging hot air (100degree×48h)
Tensile strength change (%)
+25~-25
+25~-25
20
Tensile rate change (%)
+10~-30
+10~-30
5
7
≥Acid resistant10%H2SO4×168h
0.7
0.7
0.85
8
≥Alkali proof10%NaOH1×68h
0.7
0.7
0.85
Technical Parameters
DN
Diameter
FF Length
(mm)
Axis displacement
Radial
displacement
Deflexion
displacement
Type-I
Type-II
Type-I
Type-II
Type-I
Type-II
mm
inch
Extension
Compression
Extension
Compression
32
1¼″
165
30
50
45
±7.5°
40
1½″
165
30
50
45
±7.5°
50
2″
165
30
50
45
±7.5°
65
2½″
175
30
50
45
±7.5°
80
3″
175
30
50
45
±7.5°
100
4″
225
35
50
45
±7.5°
125
5″
225
35
50
45
±7.5°
150
6″
225
35
50
45
±7.5°
200
8″
325
35
60
250
10″
325
35
60
300
12″
325
35
60
350
14″
325
35
60
400
16″
400
40
60
450
18″
400
65
70
70
±12°
500
20″
400
65
70
70
±12°
600
24″
400
70
75
75
±12°
700
28″
450
70
75
75
±12°
800
32″
450
70
75
75
±12°
900
36″
450
70
75
75
±12°
1000
40″
500
75
80
70
±12°
1200
48″
500
75
80
70
±10°
1400
56″
500
75
80
70
±10°
1600
64″
500
75
80
70
±10°
1800
72″
550
80
85
65
±10°
2000
80″
550
80
85
65
±10°
2200
80″
550
80
85
65
±10°
2400
96″
550
80
85
65
±10°
2600
104″
550
80
85
65
±10°
2800
112″
550
80
85
65
±10°
3000
120″
550
80
85
65
±10°
Zhengzhou, Henan, China
- Manufacturer
- OEM service
- Platform Certification
- SGS Certification
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