GDhigh vacuum angle valve is used for turn on or shut off the airflow in the vacuum pipeline,the applicable media is air and non-corrosive gases.
It has two structures, one is (GD-J) angle type and another is (GD-S) a tee type within an ISO-KF or ISO-F various flange end pre-pump port.
a) Small diameter (≤DN50) valve body are precision investment casting.
b) Large diameter (> DN50) valve body are molding shaped seamless steel or steel plate.
c) Bellows sealed structure can withstand 150ºCtemperature, metal sealed structure can withstand 450ºCtemperature.
d) Can install on any position to control the airflow in the vacuum pipeline, as an on-off valve purpose
Scope Of Application | 105~6.7×10-5Pa(Rubber Shaft Seal） 105~6.7×10-7Pa(Bellows Shaft Seal） |
Valve Leakage Rate | ≤1.3×10-5Pa.L/S.( Rubber Shaft Seal） ≤1.3×10-7Pa.L/S.( Bellows Shaft Seal） |
Medium Temperature | -25~+80ºC (NBR) -30~+150ºC (Viton) |
Installation Status | ≤DN160 no requirement, Other specifications proposed upright installation |
Body、Stem、Bonnet | Carbon Steel、Stainless Steel |
Seal | NBR、Viton、Bellows |