HT-S-EX rotary valve 

blauw-vinkje.png Autonomous safety system
blauw-vinkje.png Modular concept with numerous rotor variants
blauw-vinkje.png External ball bearings
blauw-vinkje.png Explosion proof and flame proof up to 1.7 bar (PU blades)
blauw-vinkje.png Explosion proof and flame proof up to 2.5 bar
        (steel/stainless steel blades)

Type HT-S-EX rotary valve

The HT-S- EX rotary valves can be used as air locks in high-vacuum systems and for dosing applications in EX environments. The HT-EX lock is certified according to ATEX regulations according to EX II 1D/...
Externally you can choose between a certified ATEX II 2/3D drive or an non-zoned motor.


Suitable as

For pressure differentials up to max. 0.5 bar and products with normal flow characteristics. For even heavier applications up to max. 1 bar differential pressure, it is better to choose an MD-EX.

Pressure shock resistant up to max. 2.5 bar (PU blades 1.7 bar).

The HT-S-EX dosing valve is very suitable for use as an airlock and economic release system in vacuum systems, in combination with suitable pressure relief.


40-jaar-ervaring.gif   ex-logo.jpg


Size  : DN250 - DN 350
Rotor volume   : 6.5 to 20 liters
House  : Cast iron, optional: hard chrome plated or nickel-plated
Rotor  : Steel or stainless steel, 8 blades
Bearing  : External ball bearings

 : Explosion proof and flame proof up to 1.7 bar
   (PU blades) and up to 2.5 bar
   (steel/stainless steel blades)

André Casteels

Sales engineer Belgium and Luxembourg

Jos Louwers

Sales coordinator