Diaphragm metering pumps Ritmo®05 Ex are designed for use in hazardous areas of zone 1 and 2. It can are dosed all liquids and gases of gas class 2B, with the exception of gases of Class IIC, such as Hydrogen, acetylene or carbon disulfide.
All wetted components are manufactured in Full-PTFE and guarantee an ultimate chemical resistance.
Positively controlled valves valves ensure a perfect seal and metering accuracy. The pump head is decoupled from the explosion-proof housing and avoids any penetration of fluid or gas in the pump housing.

The explosion-proof design is based on the EEx p in accordance with EC Directive 94/9 / EC.
The R05-Ex consists of a pump housing with Ex e approval, a therein Ex p control unit with rinsing- and pressure control function, proportional valves with automatic leakage compensation and pump head with decoupling from the pump Ex-housing.
The external control and automation capability under hazardous conditions is ensured by Start / Stop, via an analog interface 4-20 mA and digital interface RS232. Ex-engineered interface relays in an Ex-terminal box decouple the input signals from the pump.