Descripción

Válvulas de cierre de retención RVA

GEA check valves open autonomously by the pressure that is exerted by the working medium upon the valve disc. They start to open at a differential pressure of 0.01 to 0.05 bar and are fully open between 0.1 and 0.2 bar. As soon as the flow is interrupted or the flow direction is reversed, the valve closes automatically. Additionally, RVA stop check valves may also be closed manually with a handwheel or a ratchet attached to the lifting stem. Rotating the stem clockwise will keep the valve disc down on the valve seat and therefore keeps the valve closed, counter-clockwise rotation will enable the valve disc to be opened by the pressure of the medium. The built-in damping device makes this type of valve especially suitable in cases where the power requirement / flow rate fluctuates. GEA stop check valves are designed for installation in industrial heating and refrigeration systems. They are installed on either the pressure or suction side of compressors or in pipes in which only one direction of flow is intended. The stem sealing is provided by a threaded bush with spring-elastic PTFE ring.

GEA AWP RVA Stop Check Valve

Stop Check Valve type RVA

Downloads

GEA Insights

Person using a tablet to inspect stainless‑steel industrial equipment with GEA‑branded valves and piping.

GEA Cloud: Máquinas conectadas impulsadas por IA industrial

Descubra cómo las máquinas digitalizadas de GEA se conectan a GEA Cloud para obtener información basada en IA, mejorar el tiempo de actividad e impulsar un rendimiento industrial sostenible.

Transforming sidestreams into jet fuel

Transforming sidestreams into jet fuel

The aviation industry wants to use more sustainable aviation fuel, but supply is limited. To meet demand and secure cleaner air travel, suppliers need to unlock resources from existing sidestreams like fats and oils. How to scale up? That’s where GEA comes in.

In 1926, Ramesohl & Schmidt (later Westfalia Separator AG) launched their first bucket milking system. The Kirchhoff family was among the first to use it on their farm in Germany.

Del cubo de ordeño al robot: 100 años de innovación agrícola en GEA

Desde hace más de 100 años, GEA desarrolla tecnologías para la ganadería lechera, desde las primeras máquinas de ordeño con cubos hasta los sistemas autónomos y conectados digitalmente. Estas innovaciones han transformado radicalmente la ganadería lechera: se ha pasado de rutinas que exigían mucha mano de obra a una mayor productividad, un mejor bienestar animal y unas operaciones diarias más eficientes.

Recibir noticias de GEA

Mantente al día de las innovaciones e historias de GEA suscribiéndote a las noticias GEA.

Contacte con nosotros

¡Estamos aquí para ayudar! Con solo un poco de información podremos responder tu consulta.