When fully open or fully closed, the sealing surfaces of the ball and valve seat are isolated from the medium, and the medium will not cause erosion of the valve sealing surface when the medium passes. When the ball rotates 90 degrees, the spherical surface should be present at the entrance and exit, so as to intercept the flow.
Product Parameters
Nominal diameter
DN15-DN250
Nominal pressure
PN 1.6-6.4Mpa
Test pressure
Strength test
PN 2.4-9.6Mpa
Seal test
PN1.76-7.0Mpa
Applicable medium
water,steam,oil
nitrose
acetic acid
Applicable temperature
-28℃~400℃
-28℃~500℃
Connection type
butt clamp,flange(JB79-59)
Material code
C
P
R
Materials
Body
WCB
304
316
Plate
WCB
304
316
Stem
stainless steel
seal ring
PTFE,stainless steel,hard alloy
Packing
PTFE,flexible graphite
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