BL25
BL25: LUG-TYPE BUTTERFLY VALVE PN 16
Description
Centre-seated butterfly shut-off valve with a Lug-type body and spheroidal graphite cast iron disc, EPDM elastomer seal, pitch in accordance with standard EN 558, for EN 1092 PN 16 flanges, manufactured in accordance with the relevant product standards and the EN ISO 9001 quality management system. Corrosion-resistant coating using FBE (Fusion Bonded Epoxy) powder, colour blue RAL 5017, minimum thickness 250 μm.
Lug-type butterfly valves are secured to the flanges using through-bolts, which allow them to be fitted at the end of a pipeline even without the use of a counter-flange.
Application
Heating systems, hot water up to 110°C. Air conditioning systems (HVAC). Water treatment and distribution systems, waste water, industrial and agricultural applications, fire-fighting systems. Not suitable for liquids containing mineral oils, hydrocarbons, steam or liquids that have a corrosive effect on the EPDM seal coating. Other liquids and larger diameters available on request.
They are suitable for flow throttling and regulation.
(Provided the correct product is selected for the application) They are suitable for: in-line and end-of-line applications, and for service requiring frequent operation; the integrated mounting flange in accordance with ISO 5211 allows for easy fitting of a wide range of actuators.
BL25 SPECIFICATIONS
Operating pressure: PN 10 / PN 16
Operating temperature: -10°C / +110°C
Design standards: EN 593, EN 1074-1, EN 1074-2
Gauge: EN 558
Flanges: EN 1092-2 PN 16
Upper flange: ISO 5211
Tests: EN 12266-1
Coating: Epoxy powder RAL 5017, thickness 200–250 μm
BL25 MATERIALS
( 1 ) Body: Spheroidal graphite cast iron GGG 40
( 2 ) Disc: Spheroidal graphite cast iron GGG 40
( 3 ) Seal: EPDM rubber
( 4 ) Shaft: AISI 416 stainless steel
( 5 ) Pin: AISI 316 stainless steel
( 6 ) Bushing: Glass fibre + PTFE
( 7 ) O-ring: NBR
( 8 ) Lever: Carbon steel / Aluminium
