QT450 Double Sphere Rubber expansion joint PN16 “not easy to rust” For fire fittings.

QT450 Double Sphere Rubber expansion joint PN16 “not easy to rust”The material has good plasticity and toughness and is very popular in the field of fire fittings.

Name QT450 Double Sphere Rubber expansion joint PN16 “not easy to rust” For fire fittings.
Pressure:PN1 PN6 PN10 PN16 PN25 or 1Bar/2.5bar/10bar/16bar
QT450 is carbon in the form of spherical graphite, its mechanical properties are far better than gray iron and are close to steel, it has excellent casting, cutting, and wear resistance, a certain degree of elasticity, widely used in the manufacture of crankshafts, gears, pistons and other advanced castings and a variety of mechanical parts.

Medium use of QT450 Double Sphere Rubber expansion joint PN16 “not easy to rust” For fire fittings.
Natural rubber: < 80°, ordinary water, domestic sewage, air conditioning circulating water, river water, cooling water, fire water, drinking water, pulp;
Noted usually overseas clients will require Neoprene rubber expansion bellow to the pass-through same medium, Because Neoprene is an overseas common use material, and Chinese manufacturer need an import to get Neoprene raw material. so it is expensive about 30% more than a natural rubber-made rubber expansion joint. About 60-70% of Chinese manufacturers will sell natural rubber expansion bellow as Neoprene rubber expansion bellow when they know the pass-through medium is water so their price is not high than the market price. We are honest with all clients, you get the same product we promised. So best you get to know is if your client will accept the use of natural rubber if the drawing shows the material is Neoprene.

Related Link: Din-rubber-expansion-joint-industry-case