DN80 PN16 double sphere flexible pump rubber coupling


Quick Particulars

Location of Origin:

Zhejiang, China

Model Identify:


Design Amount:

GJQ(X)-SF-I adaptable pump rubber coupling




Carbon Steel







Head Code:



DN80 PN16 flexible pump rubber coupling



Total Duration:





Carbon metal, gavanized

Flange drilling:

DIN2501 PN16



The max temeprature:


Stress checks:

Hydraulic,one.five occasions

Packaging & Supply

Selling Units:
Single item
Single package deal dimensions:
22X22X20 cm
One gross weight:
9.500 kg
Bundle Kind:
DN80 DIN PN16 double sphere flexible pump rubber coupling package:
If qty is less, the package is carton box.
If the qty is big, the inner bundle is plastic, outer package is plywood situation.
Picture Illustration:
Guide Time

On the web Customization

Product Description

Double sphere versatile pump rubber coupling: DN25mm-DN3000mm

In contrast with single sphere versatile pump rubber coupling, double sphere flexible pump rubber coupling’s advantages are its displacement is greater, instantaneous strain on the bigger deformation and so on, specially when put in in the export component of the pump. When the pump starts off, instantaneous force is considerably increased than functioning stress double sphere versatile pump rubber coupling will reflect its benefits. More substantial displacement and decrease rubber growing older speed of double sphere rubber joint will make better effects. However, its draft is extremely complicated, requires large specialized, so the price is very high, as a result the software amount is more compact than one sphere rubber joint.

Attribute Feature of double sphere adaptable pump rubber coupling:

(1)Small volume, mild in weight, quite great flexibility, Convenience set up and routine maintenance.
(two)Transverse displacement, axial displacement, angular displacement
(three)Decrease sound, shock absorption

Thorough Photographs

Liwei brand on the bellow, if you do not want it, we can get rid of them.

We lower the rubber bellow, Internal rubber, outer rubber and frame layer is clear to display

Specialized information


Portion Title



Flange( retaining ring)

Carbon metal, gavanized


Inner Rubber


Outer Rubber


Body layer



Bolstered ring

Metal rope


Overal Length(mm)

Axial motion(mm)

Lateral Motion(mm)

Angular Movement

Unit Fat(kg)

Hydraulic Take a look at Force(bar)


one hundred seventy five


forty five




DIN2501 PN16 flange drilling of DN80 double sphere flexible pump rubber coupling


Flange OD(mm)


Bolt No

Bolt Diameter(mm)


two hundred

one hundred sixty



Packing &amp Supply

Interior deal is plastic, it can shield the rubber bellow expansion joints

Poor circumstance package, it is not fastened at all

Plywood scenario, non fumigation, fastened


1.We have our manufacturing unit and about two hundred workers.
2.Our company established in 1988, 30 several years knowledge.
three.The greatest diameter DN3600.
4.Our double sphere versatile pump rubber coupling has been utilized for 20 a long time and even now underneath procedure in Shanghai.
5.We preserve cooperation with ninety% of Chinese energy plants
six.Hydraulic pressure tests and burst strain assessments can be manufactured.
7.The premier vulcanizing tank in Asia:5000mm*15000mm
eight.The member of CNEA(China Nuclear Energy Affiliation)
9.ISO9001:2008 and ISO14001:2004 certification by CNAS(China Countrywide Accreditation Support Conformity Assessment)

Assemble Guidebook

1. In the course of pipe building, the rubber growth joint shall be held organic, do not deform the merchandise purposely when setting up.

two. For the duration of installing flange loosing rubber enlargement joint, the maximizing ring (jutted inner steel wire rope) of spherical two finishes shall be completely mounted inside of the flange slot so as to stop balls to break away from flanges when pipes bear strain. Throughout installing bolts, screw down symmetric six/4 bolts and hold balls and flanges remaining in buy.

3. When connecting rubber flexible coupling and pipe flange, the bolt pole shall prolong to the pipe flange so as to stop from crushing or pricking the coved screw thread increasing since of stress, all bolts shall be pressures and screwed down and term congruously. If the surrounding circumstance is poor, spring washer and flat gasket shall be included to prevent bolts from loosing.

4.If arch/large arc rubber couplings are adapted(for 6-angle bolt can not move by means of flange gap),double-head bolts shall be used and attempt to reduce spherical screw thread jut and keep away from crushing balls growing under pressure and avert early harm of rubber.

five. When regularly use the rubber growth couplings or in close proximity to h2o (oil) pump nozzles, stop block shall be extra on equally ends of flanges so as to lessen the effect on pump and pipe caused by the size changes of rubber joint.

six. When adapting over DN1000 rubber adaptable coupling, some length brief pipe shall be produced on 1 flange end so as to help set up and reduce labor power. After connecting rubber growth couplings and the brief pipe and other pipe, weld the brief pipe and pertinent pipe collectively.

seven. In purchase to get rid of the radial deviation formed by limited pipe welding, use round metal or other pertinent metallic to briefly weld flanges on pipe&rsquos two ends and make the rubber expansion joint and flange be a metal body. After welding, get rid of the welding yet again and preserve the rubber joint natural as common.

8. When welding steel and flange, bear in mind to cover the rubber enlargement couplings with shielding and avoid from burning balls.

Tags: coupling