Quick Specifics

Place of Origin:

Zhejiang, China

Brand name Identify:


Product Number:

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




Carbon Steel







Head Code:



DN80 PN16 adaptable pump rubber coupling



Overall Length:





Carbon metal, gavanized

Flange drilling:

DIN2501 PN16



The max temeprature:


Stress tests:

Hydraulic,one.5 occasions

Packaging & Shipping and delivery

Marketing Units:
One merchandise
One bundle dimension:
22X22X20 cm
Solitary gross bodyweight:
9.five hundred kg
Package deal Sort:
DN80 DIN PN16 double sphere flexible pump rubber coupling bundle:
If qty is significantly less, the package deal is carton box.
If the qty is large, the interior bundle is plastic, outer package is plywood circumstance.
Image Illustration:
Lead Time

On the internet Customization

Item Description

Double sphere flexible pump rubber coupling: DN25mm-DN3000mm

In comparison with one sphere adaptable pump rubber coupling, double sphere adaptable pump rubber coupling’s advantages are its displacement is greater, instantaneous force on the more substantial deformation and so on, specially when set up in the export portion of the pump. When the pump commences, instantaneous strain is a lot larger than operating stress double sphere flexible pump rubber coupling will replicate its advantages. Larger displacement and reduce rubber ageing velocity of double sphere rubber joint will make better results. Nonetheless, its draft is quite complicated, calls for substantial technical, so the expense is quite higher, hence the application variety is more compact than single sphere rubber joint.

Characteristic Attribute of double sphere adaptable pump rubber coupling:

(one)Modest volume, light in excess weight, really excellent adaptability, Usefulness installation and routine maintenance.
(two)Transverse displacement, axial displacement, angular displacement
(three)Lessen sounds, shock absorption

Detailed Images

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

We cut the rubber bellow, Inner rubber, outer rubber and body layer is very clear to display

Specialized information


Component Title



Flange( retaining ring)

Carbon steel, gavanized


Interior Rubber


Outer Rubber


Frame layer



Bolstered ring

Metal rope


Overal Size(mm)

Axial movement(mm)

Lateral Movement(mm)

Angular Movement

Device Bodyweight(kg)

Hydraulic Examination Force(bar)


a 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)



a hundred and sixty



Packing &amp Shipping and delivery

Internal package is plastic, it can defend the rubber bellow growth joints

Undesirable case deal, it is not fixed at all

Plywood circumstance, non fumigation, fastened


1.We have our manufacturing facility and about 200 staff.
2.Our business proven in 1988, thirty several years expertise.
3.The premier diameter DN3600.
4.Our double sphere flexible pump rubber coupling has been used for twenty years and still underneath procedure in Shanghai.
five.We keep cooperation with 90% of Chinese power crops
six.Hydraulic force assessments and burst stress assessments can be created.
7.The biggest vulcanizing tank in Asia:5000mm*15000mm
8.The member of CNEA(China Nuclear Power Association)
9.ISO9001:2008 and ISO14001:2004 certification by CNAS(China Nationwide Accreditation Service Conformity Evaluation)

Assemble Information

one. In the course of pipe development, the rubber expansion joint shall be stored all-natural, do not deform the merchandise purposely when putting in.

two. During installing flange loosing rubber growth joint, the enhancing ring (jutted internal steel wire rope) of spherical two ends shall be completely set up within the flange slot so as to prevent balls to break away from flanges when pipes bear force. In the course of setting up bolts, screw down symmetric six/4 bolts and preserve balls and flanges remaining in purchase.

3. When connecting rubber adaptable coupling and pipe flange, the bolt pole shall lengthen to the pipe flange so as to avert from crushing or pricking the coved screw thread increasing since of force, all bolts shall be pressures and screwed down and word congruously. If the bordering circumstance is bad, spring washer and flat gasket shall be additional to avert bolts from loosing.

four.If arch/higher arc rubber couplings are adapted(for 6-angle bolt are not able to go via flange gap),double-head bolts shall be employed and attempt to lessen spherical screw thread jut and steer clear of crushing balls increasing under strain and stop early hurt of rubber.

five. When usually use the rubber enlargement couplings or in close proximity to h2o (oil) pump nozzles, quit block shall be extra on each finishes of flanges so as to reduce the impact on pump and pipe brought on by the duration modifications of rubber joint.

6. When adapting above DN1000 rubber flexible coupling, some size short pipe shall be created on one flange stop so as to support installation and decrease labor power. Right after connecting rubber expansion couplings and the quick pipe and other pipe, weld the brief pipe and appropriate pipe with each other.

seven. In order to get rid of the radial deviation formed by short pipe welding, use round metal or other relevant metal to quickly weld flanges on pipe&rsquos two finishes and make the rubber enlargement joint and flange be a metal human body. Following welding, take away the welding again and preserve the rubber joint organic as usual.

eight. When welding metallic and flange, keep in mind to cover the rubber enlargement couplings with shielding and prevent from burning balls.