The ATEX certified Anval RHX Series Rotary Valves is designed for use in a wide range of applications from heavy mineral lumps to light flour dust where there is a potentially Explosive atmosphere.


RH Wired ModelAnval have a vast and exciting selection of Rotary valves including the newly ATEX Certified RHX Series; specifically designed for Explosive atmospheres.

The RHX Series valves are ATEX marked and designed with the intention of being used in potentially explosive atmospheres, provisions have also been made for all essential Health and Safety requirements.

The Anval RHX Series valves are manufactured to robust design standards and an efficacious Quality Management System that enables teh valve to operate under even the toughest conditions with minimal maintenance. This valve series is driven by ATEX approved geared motors for both direct and chain drive options, alternatively the valves can be supplied as "Bare shaft".

Opening Size : 150 to 750 mm
Flange Opening : Square
Differential Pressure : Higher Pressure handling capability
Temperature : Build to eminent Temperature
Drives : Chain Driven / Direct Driven / Bare shaft
Material of Construction : Cast Iron
Capacity Range : Upto 469 m³/hr Max.
Click here for Capacity Chart

RHX SERIES valves are compliant with the requirements of ATEX Directive 94/9/EC to handle tough, volatile applications with low maintenance requirements.

ATEX Codification


ATEX certified with protection by Construction Safety
Heavy duty single piece cast iron body
Available in Direct / Chain / Bare shaft options
Wide selection of rotor types
Equipped with "Labyrinth seals" for improved sealing
Available with Gas or Grease purging
Excellent Airlock perfromance
Minimal maintenace requirement

Sealing Method

Perfect sealing is definitely required on the rotating shaft and Anval rotary airlocks adhere to it by using "labyrinth seals". To seal dust and achieve smooth operation, dust tight seal on a rotating shaft is required. These labyrinth seals even effective with highly abrasive products and also when there is a differential pressure.


The RHX Series can be used in Safety zones 20 (Internal) and 21 (External), in application areas such as steel, cement, power plants, mineral processing, chemicals, flour mills and other areas where a potentially explosive atmosphere may be present.

Product Images

RHX Series RHX Series