Membranes are designed for use in membrane valves of “15ч74П”, “15ч75П”, “15ч76П” types (technical specification 26-07-1458-88) lined with a protective coating of fluoroplast or polyethylene. Membranes provide trim sealing and valve internal cavity insulation from the environment. Membranes of “Ф-4” are produced having required dimensions for the following nominal inside diameter values: 15, 20, 25, 32, 40, 50, 80, 100 mm.

Nominal inside diameter of valve (Dy), mm Weight, kg
15 0.025
20 0.030
25 0.035
32 0.040
40 0.055
50 0.070
80 0.140
100 0.260