Rotary valves type B-S/B-EXS
Rotary valves type B-S/B-EXS are fitted with an 8-bladed rotor with hard-wearing rubber blades bolted to the rotor shaft plate profiles.
The rotor is separated from the rotor housing by felt ring. The shaft is suspended on bearings and connected directly to the gear motor.
The rotor is made of 2 mm plate and painted with industrial primer.
There are two versions:
1. Rotor fitted with neoprene rubber blades for max. temp. 70°C and min. temp. -10°C.
2. Rotor fitted with silicone rubber blades for max. temp. 250°C and min. temp. 60°C.
Supplied as standard ready for fitting of rotation sensor.
B-S rotary valve is ATEX-approved for category 2D.
B-EXS rotary valve is ATEX-approved for category 1D safety system, see page 52 ref. EXS control system.