Vacuum ball valve for vacuum system and semiconductor equipment: Our firm also can offer you 3-pc vacuum clamp end ball valve with iso 5211 direct mounting pad that max working pressure are 1000 psi and working temperature range - 20¢fx ~ 160¢fxc . Ro cleaned & oil free. Dimension from nw 16, nw25 , nw40 , nw50 (1/2" ~ 2") in 316 grade. Price, moq, deliver time are for reference only, please contact us for correct quotation and product details