OPK_drawingWhenever boosted air extraction is required, such as when showering, the valve can be opened by operating the chain, and the exhaust air flw rate will then incease.

It can be closed manually to the normal position

OPK_drawing_ceiling

Specifications (All dimensions in mm)

A B D E TYPE
165 70 20 35 OPF 125K
150 80 17 35 OPK 100K
195 115 19 35 OPK 160K

 

Capacity Charts for Exhaust Air Valves with chain control- OPK

TYPE CAPACITY CHART
OPF 125K Click for detailed chart
OPK 100K Click for detailed chart
OPK 160K Click for detailed chart