Product Description:

ZHW expansion bellows have been designed to control vibration, reduce noise, relieve stress, prevent system shock and compensate for misalignment and movement. Use of braided metal connectors for applications such as pumps, compressors, and other mechanical equipment will enhance the overall operation of the system.

ZHW expansion bellows are used in lots of applications, where it concerns safety, health, environment, durability and lifetime. Bellows are made from stainless steel strip which is first welded to a thin walled tube and formed to a bellow afterwards.

Bellows are normally unbraided and capable to absorb axial, lateral and angular movements while being under low or higher pressures and temperatures. Due to the construction techniques involved the bellows are relative light compared to equivalent non-metallic bellow alternatives in the market.

Product Applications:

• The stainless steel bellows could primarily reduce the vibration and the noise of the piping system. Completely solve the different piping problems as displacement of joint, axial flex and etc.
• According to different material requirement, stainless steel bellows could be made as acid proof, alkali proof, and corrosion proof to suit different medium and environment.
• The material is good sealing, light weighting, easy to fix and maintain, also has long working expecting. But please keep the rubber joint far away from sharp metal in order to avoid breaking of the rubber body. 
• The flexible connectors have EPDM cover, providing excellent resistance to sunlight, ozone, oxidation and is resistant to damage from dropping oil.
• The unit has EPDM tube, which is good for hot, and cold-water service & mild chemicals.
• The fully molded Single Sphere design provides greater flexibility, thus protecting mating flanges, especially PVC and fiberglass types.
• The steel flanges easily rotate on the bellows, which makes it easier to line up the bolt holes during installation when mating flanges are out of line.
• Separate retaining rings are never required. With a temperature rating of -20°C to 100° C .the standard sizes range from 1" through 14" I.D. can be with the working pressure at 300 psi, Sizes 14" through 24" have working pressure at 150 psi.

Product Features:

• To absorb effectively vibration, noise, thermal expansion from pipeline system;
• To resolve minor deviation because of piping connecting and eliminate the pipeline residual stress;
• Applied to repeated motion in high temperature areas, good anti-fatigue performance;
• Good flexibility, resistant to high temperature, resistant to corrosion.
• Applied in the fields of petroleum, chemical industry, aerospace, metallurgy, electricity, gas, building, mechanical, construction, iron and steel, paper making, fabric, medicine, food and vessels ect,.

Product Parameters: