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Swing non-return valve KZ
gasbackflowsuction

Swing non-return valve - KZ - SMAY sp. z o.o. - gas / backflow / suction

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Characteristics

Type

swing

Fluid

gas

Applications

backflow, suction

Material

metal

Other characteristics

spring, horizontal

DN

Min.: 100 mm
(3.937 in)

Max.: 315 mm
(12.402 in)

Pressure

Min.: 0 bar
(0 psi)

Max.: 100 bar
(1,450.4 psi)

Temperature

Min.: -20 °C
(-4 °F)

Max.: 90 °C
(194 °F)

Flow rate

Min.: 0 m³/h
(0 ft³/h)

Max.: 2,500 m³/h
(88,286.67 ft³/h)

Description

A circular non-return flap valve with a spring mechanism, against air backflow. Intended Use This type of system element prevents warm air from escaping/migrating or cold air getting inside with the loss of the compression ratio, for example, when the duct fans are off. The flap may be mounted both on the suction side and on the pressure side, in any position. Operating temperature: from -20°C to +90 °C. Design Due to the appropriately sized springs, the leaves of the damper open at relatively low overpressure, shortly after the fan has turned on. When installing in a vertical system, mount the flap according to the flow direction marked with an arrow on the non-return flap housing. When installing in a horizontal system, keep in mind that the damper axle of the non-return flap must be oriented vertically. This position ensures the uniform arrangement of the non-return flap planes during operation.