1.Flexible rubber bellow introduction:
1) Flexible rubber bellowcan greatly reduce pipeline system shock and noise.
And canfundamentallyresolve pipe joints displacement, axial stretch and
2)By using different materials, rubber expansion joints can be made
many kinds to cater
for differentmedium andenvironment. Such asacid resistance, alkali resistance, corrosion
resistance, oil resistanceandheat resistance etc.
3)The material is pure rubber, sealing is very good. It is in light
weight, very easy for installation.
Rubber expansion joint has long life performance, but must be not
contact with sharp metal
instruments to avoid piercing the sphere.
4)Rubber expansion joints can be used for lift and transportation
of raw water and sewage,
transportationof water supply cooling cycle water thermal power
,condensate water of metallurgy
industry and chemical industry.
2. Flexible rubber bellowdisplacement diagram:
3. Flexible rubber bellow material list:
Polyester cord fabric
Steel wire rope
4. Flexible rubber bellow production progress:
1. Raw material: we never use reclaimed raw rubber, II rubber is
imported from USA. Before used, raw material should be tested,
including physical test and some chemical experiment to test the
hardness and so on;
2. Rubber pretreating and ingredients;
3. Milling: first, rubber plastication, second, rubber mixing, we
will add rubber compounds, like sulfuring reagent, surfactant,
softener, stabilizer, foaming agent and some special compounds, at
the same time, rubber will be extruded into plates, cut, produce 45
degree angle. The plates cannot directly be used , they should be
cooled about 24 hours;
4. Molding: it will cost much time;
5. Vulcanizing: the largest vulcanizing tank in Asia ø5000*15000,
right time, temperature, pressure is very important;
6.Flexible rubber bellow test and experiment: these tests should be
done, hydraulic test, resistance to vacuum, displacement of the
performance, rubber physical properties, thickness and the strength
and other quality test;
7. Package: out package the free of fumigation wooden case; inside
package: plastic film and textile membrane.
enviromental mnagement systems certificate,rating certificate of
internationa quality credit
China Anticorrosion Construction Qualitification
Certificate,quality management system certification