Single-acting, non magnetic ø 8, 12, 20, 32, 50, 63

Series QP: single and double-acting, magnetic Series QPR: double-acting magnetic, non-rotating ø 12, 16, 20, 25, 32, 40, 50, 63, 80, 100

Double and single-acting, double-acting non-rotating, magnetic ø12, 16, 20, 25 ø 32, 40, 50, 63, 80, 100 UNITOP

Double-acting (31M-31F) ø 12, 16, 20, 25, 32, 40, 50, 63, 80, 100