Telescopic Pipeline Expansion Joints
The supplier describes telescopic expansion-joint assemblies separately from its rubber joints and bellows products.
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Changmao Valve Group
Changmao describes rubber-bodied, flanged flexible joints for pipe and pump or valve connections.
Specify the pipe interfaces,medium,operating conditions,required movement and support arrangement. Request the actual connector construction,compound and installation information for comparison with the intended piping connection. Request the current catalogue or drawing for this item, and confirm the offered configuration and supporting documents with the company before specifying an order.
Changmao Valve Group · Zhengzhou, Henan
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Source reviewed: 2026-11-12. This directory summary organises the supplier’s published product information.
Back to company product centerThe supplier describes telescopic expansion-joint assemblies separately from its rubber joints and bellows products.
View product →This family combines stainless steel bellows with flanges or pipe ends; the catalogue distinguishes several pressure-balanced and connection arrangements.
View product →Changmao own description distinguishes flanged and clamped duckbill outlets for one-way drainage and sewage applications.
View product →The catalogue includes circular and rectangular duct compensators in metal and non-metal constructions; select the actual arrangement by duct geometry and movement.
View product →Changmao lists several flange constructions and material choices; individual size, facing and standard must follow the selected flange rather than a range-wide assumption.
View product →