Flanged rubber expansion joint

Update£º2013/6/3 6:12:08      Click£º
  • Brand   Liwei
  • Model   DN32-DN3600
  • Description

    1.Quality approved by BV and SGS; 2.ISO9001 and CE certificate; 3.24 years manufacturing experienc...

Product Introduction
1) Flanged rubber expasnion joint Performance

LIWEI Flanged rubber expansion joint are designed for piping systems to absorb pipe movements, relieve
stress, reduce system noise/vibration, and compensate for misalignment/offset and to protect rotating mechanical equipment against start-up surge forces.

Flanged rubber expansion joint is a single sphere design with less length, the supply range is from 32mm to 3600mm,and design pressure can be 1.0MPa/1.6MPa/2.5MPa, which is always used where low cost or space limitation control.

2) Application Range of Flanged rubber expansion joint

Equipped with the excellent comprehensive performances of Flanged rubber expansion joint, LIWEI Flanged 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.

LIWEI Flanged rubber expansion joint is also suitable to transport all grain and powder material and gas for its highabrasive resistance.

In addition, special notifications are hereby conducted for design units and clients so as to ensure theproject quality. Please note to install anti-break stop device, if LIWEI Flanged 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) Features and Benefits of Flanged rubber expansion joint

a,Versatile hand-built construction. Made in China

b,Absorbs directional movement

c,Absorbs vibration, noise and shock

d,Compensates for misalignment

e,Wide flowing arch design

f,Virtually eliminates sediment buildup

g,Economical fully molded construction

h,High vacuum rating (up to 30" Hg) can be supplied for certain sizes

i,Special grooved flange ring design, prevent rubber end pull out

j,Solid galvanized steel floating flanges speed the installation time

k,High tensile aircraft cable is embedded in the raised face rubber ends to prevent pull out and avoids thesharp cutting edge of solid steel rings

l, No gaskets required; integrally rubber flanged design, no gaskets required, DIN PN10/16 drilling standard, other flange drilling available, including ANSI 150lb/300 lb, BS, and JIS


4) Material list of Flanged rubber expansion joint

 NO.  Name  Material
 1  Inner layer  EPDM,IIR,CR,NR,NBR
 2  Outer layer  EPDM,IIR,CR,NR,NBR
 3  Framework layer Polyester cord fabric
 4  Flange  Carbon steel,stainless steel
 5  Reinforcing ring  Steel wire rope

5) Structure of Flanged rubber expansion joint




Note:

1. The Liwei Flanged rubber expansion joint supply range is from DN32 to DN3600.

2. Control units must be used when piping is not properly anchored.

3. The rated pressure 2.5MPa products will only be sold with control units.

4. The Liwei Flanged rubber expasnion joint Pressure rating is based on 30¡ãC operating temperature.The pressure rating is reduced at higher temperatures.

5. Movements shown in the above table are non-concurrent.

6. Normally, the flange drilling is based on DIN PN16, ANSI 150/250/300 lbs, BS PN10, JIS 10K are also available upon request.

7. Please remark the application standard of structural strength and connection size when placing an order.

8. If the relevant parameters of Flanged rubber expansion joint needed are not within the scope of the foregoing list,please remarks. We can design and manufacture on behalf of you.

7) Physical and Mechanical Properties of Flanged rubber expansion joint

No
Item
Index
Test value
Inner rubber
Outer rubber
1
¡İTensile strength(MPa)
12
13
13.6
2
¡İBreak strength (%)
450
500
564
3
¡ÜBreak permanent deformation (%)
25
30
22
4
¡ÜBrittleness temperature(¡æ)
-30
-30
-40
5
¡İViscosity(KN/m)
2.0
2.0
5.6
6
Aging hot air (100¡æ¡Á48h)
Tensile strength change (%)
+25~-25
+25~-25
20
Tensile rate change (%)
+10~-30
+10~-30
5
7
¡İAcid resistant10%H2SO4¡Á168h
0.7
0.7
0.85
8
¡İAlkali proof10%NaOH1¡Á68h
0.7
0.7
0.85

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