How to Choose Good Quality Rubber Joints
Rubber expansion joints are installed in two pipe fittings, taking advantages of the flexible properties, they play important role in cushioning effect of noise reduction, pipeline vibration protection, displacement compensation, etc. Rubber joints are essential accessories for pipes. Bad quality rubber joints don't only function well by itself, but also effect the whole pipeline. So choose good quality rubber joints when buying.
There are certain rules to choose good quality rubber joints. They are much different from bad ones.
1. Test of flexibility can be taken by nails, pinch the surface of rubber joint, traces on good rubber joints automatically recover very fast.
2. Rubber joint appearance can be directly observed with naked eye, different materials different colors, but most of them are unified black color.
3. Mould of rubber joint. Two types of moulds available, air blow film and mechanical film mould. Mechanical film is traditional method, internal wall is fit piece by piece with seams, air blow film internal wall is much more smooth, which become a popular moulding method.
Gongyi HuanZhong Pipeline Equipment Co., Ltd. is a quality driven manufacturer of rubber expansion joints, having over two decades of production experience and advanced production equipment. Product quality is well received by customers at home and abroad.
