- Butterfly Valves
- Butterfly valves with double offset of PA 400 series
- Butterfly valves of PromArm manufacturing
- PA 200
- PA 300
- PA 400
- PA 600
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- PA 900
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Butterfly valves with double offset of PA 400 series
Valves of this series are designed for operation in harsher conditions than valves with a symmetrical disk (high temperatures, more cycles of actuation).
The disk is installed in the body with an offset relative to the axis of symmetry of the valve body and the pipeline axis.
The seat and the disc have a conical profile, which together with a double offset allows the disk to come out of contact with the seat at minimum opening angles.
Connection type is wafer.
Valves of series PA400 are produced with sealing of 3 designs: with soft PTFE seat, in fire-safe design and with "metal-on-metal" seat.
Butterfly valves series PA400 are used in oil refining, chemical industry, metallurgy, technological pipelines of industrial enterprises, in energy industry, shipbuilding.
|Manufacture and supply:||Acc. to TU 3700-001-55604618-2013|
|Type of construction:||Butterfly valves with double offset|
|Nominal diameter:||DN 50 – DN 1000 mm|
|Nominal pressure:||- PN 10, 16, 25, 40 kgf/cm2|
|Temperature of working medium:||Up to +450 ° С depending on the seat material|
|Operation:||– handle DN 50-150 mm – gearbox DN 50-1000 mm – electric or pneumatic actuator DN 50-1000 mm|
|Leakage class:||«А» acc. to GOST Р 54808-2011|
|Main working mediums:||Water, air, low pressure steam, oil, oil products, acids, alkalis, hydrocarbons, alcohols, seawater|
|Connection type:||- wafer type with smooth lugs; - wafer type with threaded lugs; Connecting flanges according to GOST 33259-2015|
|Installation position:||Any, except the position "electric actuator down" for valves with electric actuator|
|Flow direction of the working mediums:||Any|
|Climatic version:||У, УХЛ, Т, ТМ, ТВ acc. to GOST 15150-69|
|Top flange:||Acc. to ISO 5211|