WAFER type butterfly valve
BV12008WSA PN10 │ PN16 │ 150#
Spring return actuator operated
BVALVE Pneumatic actuated soft-seated butterfly valve, One-piece wafer design with extended neck and a concentric disc and seat configuration to allow for DN40-DN1200 of piping insulation. Flanges have hole drilling according to international flange standards. The valves are provided with a non-corrosive bushing and self-adjusting stem seal.
Wafer type butterfly valve for installation between flanges EN 1092-2, PN 10/16, ASME class 150. Acc B16.5. One-piece body, self-centring, two-piece disc and stem connection, bubble-tight up to 16 bar (DN50-DN300), up to 10 bar (DN350-DN1200).
Spring return actuator with rack and pinion design. Rotation angle 90º ± 5º (by means of external travel stops). Maximum working pressure 8 bar (120 psig) Total safety for spring replacement. Anftifriction sliding bearings.
Advantages at a glance
|Size||DN 40 - DN1200|
|Nominal pressure||PN10, PN16 EN 1902-2 / ASME 150# Acc. to B16.5|
|Design||DIN EN 593 / BS 515|
|Certifications||CE-Marking, TA Luft, ATEX, WRAS|
|Face to Face dimension||DIN EN 558 line 20 / API 609 table 1|
|Mounting flange||DIN EN ISO 5211|
|Test||DIN EN 12266-1 leakage rate A bidirectional / API 598 / ISO 5208 category 3|
|Seat materials / Working temperature||NBR from -25ºC to + 100ºC
EPDM from -35ºC to + 130ºC
FKM from -20ºC to + 200ºC