Product Range

Check valves type R

Nominal Sizes:
DN 100 to DN 2000

Nominal pressures:
Up to PN 63

Temperature range:
-196 °C up to +550 °C

Design Industrial valves in double eccentric butterfly design
Welded design
Type Check valves (type R)
End connections DIN, ANSI, BS, MSS, API, JIS etc.
Welding ends (up to DN 800)
Face-to-face dimensions
EN 558-1 / ISO 5752 series 14 (F4) or upon the customer‘s request
Materials 1.0038 (S235 JR), 1.0425 (P265 GH/HII), 16 Mo3
1.4301, 1.4401, 1.4439, 1.4462, 1.4541, 1.4571 etc.
Inlet linings Hard rubber, soft rubber, natural rubber, hard protective coating
Disc seals NBR (Perbunan®), FKM (Viton®), PTFE, stainless steel, SS graphite or PTFE lamination
Shaft seals Stuffing box
Double stuffing box or safety stuffing box
Lip seal and O-ring made of NBR, FKM, PTFE
Double lip seal and O-ring made of NBR, FKM, PTFE
Actuators Gear lever and weight as support (type R) Check valve gears with infinitely variable hydraulic brake (type rbh) Pneumatic and hydraulic force-controlled check valve drives (type RBH-PN)