1, The seal is desigend with dustproof ring plus three "O"-seal
ring, reliable sealing, on-line replaceable.
2, Both gate and aluminum bronze bearing are in inaid design good
self lubrication, high strength and can have the aluminum bronze
bearing replaced with out need to replace the gate integrally,
aftere a long time use.
3, Rubber wrapped gate anti-corrosion, good tightness.
4, Advanced surface treatment, coated with non-toxic epoxy resign
static powder, anti-corrosion, pollution-free, can be used drinking
5, The body is designed with out gate slot, the smooth passage will
not get impurities filling up, more applicable for sewage working
6, The integral seal works raliably. For the high pressure seal,
leaving zero leakage under 1.5 times nominal pressure and, for the
low pressure one, under 0.02Mpa.
|air seal test||0.6/0.6/0.6Mpa|
Materials of main parts:
|body||ductile cast iron|
|disc||ductile cast iron packed with NBR|
|Cover||ductile cast iron|
|gland||ductile cast iron|
|dust proof gasket||EPDM NBR|
|Hand wheel||ductile cast iron|