Production Process

Double Sphere Rubber Expansion Joint

The Double Cablesphere is the result of adding the Metraflex innovation of factory-installed control cable to the Doublesphere.  The control cables restrain the hydrostatic end load so there is no need for control rods.  The Double Cablesphere handles more movement than a Cablesphere and provides all the value. The Double Cablesphere’s cables limit the extension of the joint, so it is primarily a pump or equipment connector.  It can also be used as an expansion joint if EJMA guidelines are followed. Control rods are not needed.



Provides sound and vibration isolation.
Gaskets and packing are not required.
Floating flanges allow for easy installation.
Prevents piping system and equipment breakdown by absorbing elongation and contraction caused by temperature variances.
Absorbs water pulsation and minimizes water hammering.

Cooperate with JS FITTINGS, you will enjoy the following benefits.

Pre-sale Service

Cooperation guidance Production process updates Documents of clearance

After-sale Service

1-year warranty time of the products. Any feedback will be replied to within 2 hours. 
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Free Sample

If you need samples in small sizes such as 1", 2", and only one or two pieces, samples are free.

Free Sample

You only need to pay for the courier cost. 
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Fast Quotation

The factory price list can be supplied within 1 day in working days. 

Factory Price

We are a factory of 38 years old, some items are in stock.
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Our factory and products are approved by ISO 9001, CE, TUV, CCS and GOST-R.

Test & Inspection

Before delivery, the SGS inspection, Ultrasonic test and other inspections are acceptable. 
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Customers say:

Boran Turkey
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The flanges are exactly in line with our requirement technically and competitive commercially.
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We tested the elbows and flanges, their performance is very nice. We will make the new purchase plan for the warehouse.
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like the product.. quick response and also nice people.
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This product is exactly in line with our requirement technically and competitive commercially.

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12 tips about importing steel pipe fittings and flanges from China

No matter how long you have kept importing from China, the tips will be helpful for you. 

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