BW50 valvola di intercettazione wafer bf control





Butterfly shut-off valve with centered disc with Wafer type and cast iron lens, EPDM elastomer seal, working pressure PN 25, gauge in accordance with EN 558, manufactured in accordance with relevant product standards and the EN ISO 9001 quality management system. Anti-corrosion coating using FBE epoxy powder (Fusion Bonded Epoxy), RAL 5017 blue color, minimum thickness 250 μm.
Wafer butterfly valves are suitable for in-line installation between two flanges (or at the end of the line with counterflange), centering is obtained by means of slots on the valve body.

Use Case

Heating systems, warm water up to 110 ° C. Air conditioning systems (HVAC). Water treatment and distribution systems, waste water, industrial, agricultural, fire prevention applications. They are not suitable for liquids containing mineral oils, hydrocarbons, steam and liquids that exert an aggressive action on the EPDM seal coating. Other liquids and larger diameters on request.
They are suitable for capacity control and flow regulation.
(Subject to the correct choice of the article based on the application) Suitable: for in-line and end-of-line use even without the use of a counterflange, and for service that requires frequent activations; the integrated support according to ISO 5211 allows easy mounting of a wide range of servos.

Also available in versions:
● with padlockable lever in open/closed position
● with lever and limit switch
● with lever and position indicators (Limit Switch Box)
● with manual gearbox
● with manual gearbox and position indicators (Limit Switch Box)
● with electric actuator
● with pneumatic actuator (single and double acting)

BW50 disegno tecnico valvola wafer pn 25


Working pressure: PN 25
Working temperature: -20°C / +110°C
Project standard: EN593
Gauge: EN558-1
Flanges: EN 1092-1
Upper flange: ISO5211
Testing: EN12266-1
Coating: RAL 5017 epoxy powder, thickness 250-300 μm


( 1 ) Body: GGG 50 spheroidal cast iron
( 2 ) Disc: GGG 50 spheroidal cast iron
( 3 ) Seal:  EPDM
( 4 ) Shaft: AISI 431 stainless steel
( 5 ) Plug: AISI 431 stainless steel
( 6 ) Bushing: Fiberglass + PTFE
( 7 ) O-Ring: NBR
( 8 ) Lever: GG 25 lamellar cast iron

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