70 degree/280 degree fire damper, fire vent check valve, regulating valve

70 degree/280 degree fire damper, fire vent check valve, regulating valve, smoke exhaust valve, muffler

70 degree/280 degree fire damper, fire vent check valve, regulating valveInstallation method and precautions

1. Installation70 degree/280 degree fire damperCheck valve regulating valveSeries, attention should be paid to the area around the valve, especially on the side where the valve operating mechanism is located. A clear space of no less than 350mm should be reserved for regular action tests and inspections.install70 degree/280 degree fire damperBefore installation, the valve shape and operating mechanism should be checked for integrity, and the action should be flexible. After confirming that all aspects of the valve are normal, installation can be carried out. valve bodyBefore installation or during use after installation, regular closing action tests should be conducted, preferably every six months to one year. The action test includes using electrical signals to close or manually close the valve, and there should be an electrical output after the valve is activated.

70 degree/280 degree fire damper, fire vent check valve, regulating valve shouldThere are separate supports and hangers to avoid deformation of the air duct at high temperatures, which may affect the function of the valve. valve bodyThe air ducts between firewalls (or floor slabs) should be made of steel plates with a thickness of δ ≥ 1.6mm, and then insulated with refractory materials outside the air ducts.

70 degree/280 degree fire damperWhen installing in the ceiling, there should be inspection door holes under the observation and operation mechanism, with a general size of not less than 450 × 450mm. If conditions are limited, the ceiling access hole can also be reduced to 400 × 400mm.

70 degree/280 degree fire damperThe installation method of fire damper products is provided for users' reference.