BL25 valvola a farfalla lug pn 16





Butterfly shut-off valve with centered disc with Lug type body and spheroidal cast iron lens, EPDM elastomer seal, gauge according to EN 558, for flanges type EN1092 PN 16, manufactured in accordance with relevant product standards and the quality management EN ISO 9001. Anti-corrosion coating with FBE epoxy powder (Fusion Bonded Epoxy), blue color RAL 5017, minimum thickness 250 μm.
Lug butterfly valves are fixed to the flanges with through screws that allow them to be fixed at the end of the line even without the use of a counterflange.

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)

Disegno tecnico valvola a farfalla lug pn 16 BL25


Working pressure: PN 10 / PN 16
Working temperature: -10°C / +110°C
Project standard: EN 593, EN 1074-1, EN 1074-2
Gauge: EN 558
Flanges: EN 1092-2 PN 16
Upper flange: ISO 5211
Testing: EN 12266-1
Coating: RAL 5017 epoxy powder, thickness 200-250 μm


( 1 ) Body: GGG 40 spheroidal cast iron
( 2 ) Disc: GGG 40 spheroidal cast iron
( 3 ) Seal:  EPDM
( 4 ) Shaft: AISI 416 stainless steel
( 5 ) Plug: AISI 316 stainless steel
( 6 ) Bushing: Fiberglass + PTFE
( 7 ) O-Ring: NBR
( 8 ) Lever: Carbon steel / Aluminum

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