Design standardï¼ISO 10631ï¼Face to face length: ISO5752 S13/S14ï¼Connecting flange: GOST 33259ï¼GOST12815ï¼
ISO 7005 PN6/10/16/25/40 Test standardï¼ISO 5208, Bi-direction, Double offset, Zero Leakage
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.
Used in blast furnace gas pipelines for regulating and cutting off
Dual eccentric butterfly valves include wafer type and flanged type, rubber sealing or metal sealing with different operation methods.
The valve is composed of butterfly valve and piston valve
The lever cutting butterfly valve has the advantages of small structure size and light weight. The valve plate has a period of opening and closing translation process relative to the valve body at the moment of valve opening and closing, and the friction free operation can ensure the sealing performance of the sealing surface for a long time
opening moment is small, flexible and convenient, and labor-saving and energy-saving are realized.
Regulating valve has straight disc type and inclined disc type
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.
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.
Design standard：API609，Face to face length: API609，Connecting flange: ANSI B16.5/B16.47 Test standard：API598, Bi-direction, dual eccentric, Zero Leakage.
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.
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.