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Versa Valves

Delivering Reliability Under Pressure

Introducing the NAMUR ReBreather

Introducing the NAMUR ReBreather


Actuator Controls for Harsh or Dirty Environments

The Versa NAMUR ReBreather is a simple device used in applications where the environment is corrosive from production, plant pollutants or other environmental issues. These applications need something to protect the actuator spring chambers from sucking in external air/contaminants during the return stroke, extending valve and actuator life and reliability. The new Versa NAMUR ReBreather kit prevents this from happening by redirecting the clean instrumentation air, thus preventing external dirty air from entering the control system. 

How it works

The Rebreather block is used on single acting actuators to prevent corrosive atmosphere from entering the actuator spring side. This add on accessory is also designed to use available instrument air to fill spring side, thus assuring only clean air enters the actuator. The instrument air it utilizes on the return stroke is the air from the exhaust cycle of the piston side of actuator. No additional air is required to complete the cycle and keep actuator clean, hence the reason this accessory is called a “ReBreather” - reusing clean exhaust air to keep actuator clean. 

Low profile design

Available on either Versa’s C or C-316 Series NAMUR valves. In applications where closing speed needs to be adjusted, an optional speed control is offered. The material of the main plate is engineered polymer. All fasteners and speed controls are 316 stainless steel for enhanced corrosion protection and product life.


Basic plate is supplied with a ¼” npt vent port. Versa offers a dust screen (MFS) in dusty environments or in areas where moisture may be present, the ReBreather is available with a positive check (DE).