We offer manually operated right angle valves that come with leak rate of 1X 10-8 std. cc./ Sec. Further, the material of construction includes valve body in S.S 304 grade finish, use of viton sealing material & Bakelite knobs. stainless steel vacuum angle valves are precision engineered with maximum conductance and minimum size for easy installation. High vacuum (HV) and ultra high vacuum (UHV) valves are ideally suited for systems requiring high reliability and low outgassing.