STANDARD COMPLIANCE

Concentric butterfly valves conform to ISO 5752, KSV 7490, JIS F 7480, JIS B 2032, JIS B 2064, API609,BS5155, DIN2501

PRODUCTION RANGE

Valve Size : 40mm (1-1 / 2 in) ~ 1,800mm (72 in)

Rating Temperature : -20℃ ~ +80℃

Working Pressure : up to 16 bar

APPLICABLE FLANGE

KS / JIS 5K / 10K / 16K

ASME B16.1 CLASS125, ASME B16.5 CLASS150

ASME B16.47 SR.A / B CLASS150

BS EN1092-1 PN6 / PN10 / PN16

AWWA C207 CLASS B / D / E

SCHEMA OF CONCENTRIC TYPE

The valves shall be a 90° turn clockwise to close, no-jamming, and resilient seated valve for zero leakage service. The valves shall be torque seated and designed in such a manner that the disc can not be rotated the seat without the actuator. Also theses valves enable the fluid perfect shut-off regardless of the flow direction.

Symmetric disc design ensures favourable flow characteristics and low pressure drop

Concentric shaft ensures low operating torque

Lining gives a good protection to valve body and acts as flange gasket

- Shaft penetrates the valve seat

- Limited choice of seating materials(Elastomer only)

OPERATIONS

The following operation of the valve is possible depending on the valve location, the type of work and service of the valve to be provided

Manual lever operation

Manual worm gear operation

Hydraulic actuator operation

Electric motor actuator operation

Single or double acting pneumatic actuator operation