Product Range


Combined shut-off check valves type RA


   
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 Combined shut-off check valves (type RA)
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 Combined shut-off and check valve gears with hydraulic brake