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flexible rubber bellow expansion joint with flange

FOB Price: US $10 - 100 / Piece Get Latest Price
Min.Order Quantity: 1 Piece/Pieces more the quantity, lower the price
Supply Ability: 2000 Piece/Pieces per Month Quality assured
Port: Tianjin
Payment Terms: L/C,D/A,D/P,T/T,Western Union
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Quick Details

neoprene with carbon steel flange
Flange,single/double spheres
Place of Origin:
Tianjin China (Mainland)
Model Number:
Brand Name:
Head Code:
explosion pressure:
end flange:
water, air, oil
carbon steel/stainless steel
strengthen ring:
steel wire ring
nylon polyester fabric
inner of rubber be;;ow:
outer of rubber bellow:

Packaging & Delivery

Packaging Detail: Single valve is packed with foam plastic bag. A shipment of valves are packed with plywood case.
Delivery Detail: 5-30 days according to the quantity of goods


1.Convenience installation and maintenance
2.Very good flexibility
3.Reduce noise, shock absorption

TypeSingle sphere or arch/Double spheres or arch
Main Parts and Materials
Outer & Inner RubberEPDM,NR,NBR,Neoprene
Strengthen RingSteel wire ring
FrameNylon polyester fabric
FlangeCarbon steel/Stainless steel
MediumWater, Seawater, Sewage, Air, Oil


Working PressurePN10PN16
Explosion Pressure3.0MPa4.8MPa



1. Feature:

1. Small volume, light in weight, very good flexibility, convenience installation and maintenance.

2. Transverse displacement, axial displacement, angular displacement.

3. Reduce noise, shock absorption.


2. Application:

Due to favourable integrated performance, they can be widely used in chemical industry, construction, water supply, drainage, oil industry, light and heavy industry, refrigeration station, water heating system, fire fighting system, electric power system, etc.


3. Suitable medium:

According to different material, acid resistance rubber joint, flameproof rubber joint, oil resistant rubber joint, thermostatic rubber joint, low temperature resistant rubber joint, wear resistance rubber joint can be made to suitable for various kinds of medium, and environment.


4. Flexible Rubber Joint Features and Benefits:

1. Absorbs Directional Movement

Thermal movements appear in any rigid pipe system due to temperature changes. The Single Sphere Rubber Expansion Joint low profile wide arch allows for axial compression or axial extension, lateral deflection as well as angular and torsional movements. (Note: Rated movements in this publication are based on one plane movements.Multiple movement conditions are based on a multiple movement calculation. Contact Ldflex for information when designing multiple pipe movements.)

2. Less Turbulence or Material Entrapment

Expansion joints are manufactured with the integral rubber flange joining the body at a true 90º angle. This ensures the product will install snug against the mating pipe flange free of voids creating less turbulence in the pipe system. The Single Sphere Rubber Expansion joint also has a self-flushing arch which eliminates media buildup and the need for a filled arch spool joint resulting in greater movement capability and lower spring rates.

3. Absorbs vibration, noise and Shock

The Single Sphere Rubber Expansion Joint joints effectively dampen and insulate downstream piping against the transmission of noise and vibration generated by mechanical equipment. Noise and vibrations caused by equipment can cause stress in pipe, pipe guides, anchors and other equipment downstream. The Single Sphere Rubber Expansion Joints will help relieve noise and vibration occurrences in a pipe system. Water hammer and pumping impulses can also cause strain, stress or shock to a piping system. Install Single Sphere Rubber Expansion Joint to help compensate for these system pressure spikes.


Rubber expansion joints are mainly manufactured by manual wrapping of rubber sheets and fabric reinforced rubber sheets around a bellow-shaped product mandrel. Besides rubber and fabric, reinforced rubber and/or also steel wires or metal rings are added for additional reinforcement. After the entire product is build up on the mandrel, it is covered with a winding of (nylon) peel ply to pressurize all layers together before pressurization.



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Established in 2001, Tianjin Tanggu Valve Equipment Co., Ltd. is a professional manufacturer and exporter that is concerned with the design, development and production of butterfly valve, gate valve, check valve, etc. We are located in Tianjin, with convenient transportation access. All of our products comply with international quality standards and are greatly appreciated in a variety of markets around the world.

Covering an area of 2,500 square meters, we now have over 45 employees and an ... View detail

Basic Information

Product/Service (We Sell): butterfly valves,check valves,gate valves,Y-strainer,joint  
Number of Employees: 11 - 50 People  

Trade & Market

Main Markets: Southern Europe
Northern Europe
South America
Eastern Europe
Western Europe
North America
Total Annual Sales Volume: US$5 Million - US$10 Million  
Export Percentage: 41% - 50%  

Factory Information

Factory Size (Sq.meters): 1,000-3,000 square meters  
Factory Location: (Opposite To Snyuan Oil Depot) Xizhenghe Village, Zhongtang Town, Dagang, Binhai New Area, Tianjin. China  
Number of Production Lines: Above 10  
Number of R&D Staff: Less than 5 People  
Number of QC Staff: 5 - 10 People  
Contract Manufacturing: OEM Service Offered   Design Service Offered   Buyer Label Offered  

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How It Works

China (Mainland) | Manufacturer | Contact Details
Experience: Established 2001 , 5 years OEM

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Mr. Karl Liu
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