Connections suitable with flanges UNI EN 1092-1 PN 10 - 16
Standard API 594
Face to face length: EN 558-1 serie 16, API 609 BS 3135
Installation: horizontal / vertical with down-up flow direction. In horizontal position, the axis must be placed in vertical position. In vertical position, the plates must be opened in the same flow direction. Downstream, a piping of minimum length 5 times diameter, to be installed before the valve, and a pipe of minimum length 2 times diameter after the valve, to allow stabilization of flow and recovery. Installation between counterflanges.
APPLICATIONS ° Water supply ° Heating – conditioning systems ° Pumping stations ° Waste water treatment plants
° Irrigation
- Fig 805: GG/GGG/NBR
- Fig 805I: GG/316/NBR
- Fig 805C: GG/Al Bz / NBR
Materials
body: cast iron GG25, EN-GJL-250
spring: stainless steel 316
disc: ductile iron GGG40 / st.st. 316 / Al Bz
body seats: NBR - EPDM
painting: epoxy