Flanged rubber seated butterfly valveDN32-DN4000,PN10-PN40, -29℃-200℃,
It is common butterfly valve preferred for pipelines. It has simple structure, small flow resistance coefficient, almost linear flow characteristics, and will not hold debris. It also has the advantages of light weight, convenient installation and low torque. The valve can be used not only for cutting off the medium, but also for regulating the flow rate of the medium. It is suitable for manual, pneumatic or electric operation.
DIN
Design standard：DIN3354，Face to face length: DIN3202 F16/F4，Connecting flange: DIN2532, DIN2533, DIN2501 PN6/10/16/25/40 Test standard：DIN3230, Bi-direction, dual eccentric, zero Leakage.
Internally and externally coated with fusion bonded epoxy coating, thickness Min. min250m or liquid epoxy painting.
EU:
Design standard：EN593，Face to face length: EN558 S13/S14，Connecting flange: EN1092-1/2 PN6/10/16/25/40 Test standard：EN12266-1, Bi-direction, dual eccentric, zero Leakage.
Internally and externally coated with fusion bonded epoxy coating, thickness Min. min250m or liquid epoxy painting.
BS:
Design standard：EN593, BS5155，Face to face length: EN558, BS2080 S13/S14，Connecting flange: EN1092-1/2, BS4504, BS1560 PN6/10/16/25/40 Test standard：EN12266-1, BS5146, Bi-direction, dual eccentric, zero Leakage.
Internally and externally coated with fusion bonded epoxy coating, thickness Min. min250m or liquid epoxy painting
ANSI:
Design standard：API609，Face to face length: API609，Connecting flange: ANSI B16.5/B16.47 Test standard：API598, Bi-direction, dual eccentric, Zero Leakage.
Internally and externally coated with fusion bonded epoxy coating, thickness Min. min250m or liquid epoxy painting.
ISO/GOST:
Design standard：ISO 10631，Face to face length: ISO5752 S13/S14，Connecting flange: GOST 33259，GOST12815，
ISO 7005 PN6/10/16/25/40 Test standard：ISO 5208, Bi-direction, Double offset, Zero Leakage.
Internally and externally coated with fusion bonded epoxy coating, thickness Min. min250m or liquid epoxy painting.
AS:
Design standard：EN593/ AS4795，Face to face length: ISO5752/EN558 S13/S14，Connecting flange: AS4087/AS2129 PN6/10/16/25/40 Test standard：AS4795, Bi-direction, Double offset, Zero Leakage.
Internally and externally coated with fusion bonded epoxy coating, thickness Min. min250m or liquid epoxy painting.
IS:
Design standard：EN593，Face to face length: ISO5752/EN558 S13/S14，Connecting flange: EN1092-1/2 PN6/10/16/25/40 Test standard：EN12266-1, Bi-direction, Double offset, Zero Leakage.
Internally and externally coated with fusion bonded epoxy coating, thickness Min. min250m or liquid epoxy painting.