Termék részletei

FB - Quarter-Turn Fire Protection gearbox

FB - Quarter-Turn Fire Protection gearbox

kategória:

Újdonságok

Cikkszám:

FBROTF

Rövid leírás:


Quarter-turn cast iron gearbox suitable for use with fire protection (i.e. sprinkler) systems, includes limit switches to be incorporated into a supervisory electrical circuit. Designed and tested specifically to meet UL1091 specification and FM1112 approval.


Common features, application:


New durable and economic FB series of gearboxes are capable of withstanding in excess of three times the rated input torque and have a lifespan of over 1000 cycles.

Also incorporated is an external overload feature in the form of a shear pin fixing the handwheel to the input shaft to prevent damage to the valve if subjected to abuse for UL applications and for FM application an internal overload feature can be incorporated between the valve stem and the gearbox output (shear pin, shear key etc.) 

All FB gearboxes include electrical switches activated when the valve is moved from the open position.