Production Process

Double Sphere Threaded Union Rubber Expansion Joint

Female threaded ends make installation of these Threaded Union Molded Rubber Expansion Joints (Series AMU) easier. Reduce noise and vibration with these expansion joints designed to absorb movement efficiently.

API Part Number Size Face To Face Dimensions Allowable Motion Ratings*
Allowable Motion Ratings*
Allowable Motion Ratings*
Allowable Motion Ratings*
Approximate Weight
AMU0050-XX 0.5 8 0.875 0.250 0.875 45⁰ 1.50 Lbs
AMU0075-XX 0.75 8 0.875 0.250 0.875 45⁰ 1.80 Lbs
AMU0100-XX 1 8 0.875 0.250 0.875 45⁰ 2.75 Lbs
AMU0125-XX 1.25 8 0.875 0.250 0.875 45⁰ 3.50 Lbs
AMU0150-XX 1.5 8 0.875 0.250 0.875 45⁰ 4.00 Lbs
AMU0200-XX 2 8 0.875 0.250 0.875 45⁰ 5.00 Lbs


Efficient noise and vibration isolation. Ability to absorb large displacement due to eccentric, axial, and angular movement. Applicable for both suction and discharge. Female Threaded Unions allow for easy installation.


Vibration isolation for small pumps and circular pumps. Sewage disposal purifier line. Vibration isolation for air-conditioners and pipes.


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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