Unique RV-ST
La Alfa Laval Unique RV-ST es una válvula de control de flujo higiénica y versátil que proporciona un control continuo de flujo y presión para aplicaciones de manejo de líquidos de alto y bajo volumen. Con una configuración sencilla y un posicionador electroneumático, cumple con las más altas exigencias de proceso en cuanto a higiene y seguridad en las industrias láctea, alimentaria, cervecera y muchas otras.
Válvula de control de flujo para un control rápido y preciso del flujo y la presión del proceso
- Garantiza una presión constante
- Mantiene un flujo constante, incluso en volúmenes bajos
- Regula el flujo o la presión de la bomba
- Cumple con todos los requisitos del proceso, cubriendo una amplia gama de valores Kv
Satisfaga las exigencias más rigurosas de higiene de procesos, seguridad y control de flujo y presión con la válvula de regulación Alfa Laval Unique RV-ST. Esta versátil válvula de regulación y control de caudal cubre valores Kv desde 1 hasta 250 m3/hora para satisfacer la mayoría de los requisitos de los clientes, incluso con caudales muy bajos. Construida sobre la probada plataforma Unique SSV, la RV-ST comparte componentes estándar con la serie de válvulas Alfa Laval Unique, lo que reduce el inventario de piezas y los costos, además de simplificar el reemplazo cuando sea necesario.
How does the flow rate control valve work?
Construction
The Alfa Laval Unique RV-ST regulating valve with integrated IP converter is a third-generation single-seat valve. It features:
- A broad selection of stainless steel tapered valve stems
- An Alfa Laval Unique actuator with digital electropneumatic process controller for precise control of product flow and pressure
- Rugged, long-lasting plastic stem bushings that eliminate metal-to-metal galling
Valves from 1½” to 4” have the same standard plug seal as the entire Alfa Laval Unique valve series. The 1” needle valve does not have a plug seal.
The stems are threaded to the actuator shaft, which eliminates the coupling between the stem and the actuator. Bushings at end of the actuator cylinder support the stem and ensure perfect alignment.
Operating principle
The electro-pneumatic controller is controlled from a remote location by means of a digital electropneumatic process controller. The control unit comes in two versions: top control with display or basic control without display. It has an analogue 4-20 mA communication interface and is protected according to IP65 and IP67.
Options
- Male parts or clamp liners in accordance with required standard
- Product-wetted seals in HNBR or FPM
- Maintainable actuator
- External surface finish blasted
- Optional plug seal: HNBR or FPM
Advanced electro-pneumatic controller
The flow rate control valve comes with an advanced electro-pneumatic controller with an integrated IP converter. This offers superior control of product flow by combining different pressure drops and stroke lengths. It also features a contact-free analog position sensor, which measures the position of the valve spindle, and a standard Profibus DP-V1 or optional DeviceNet communications interface. Analogue or binary feedback is available as options.
Easy push-and-play regulating valve setup
With a push of a button, the flow rate regulator valve automatically calibrates itself so that it is fully operational.
Reliable, easy to maintain
Built on the proven Unique SSV (Single Seat Valve) platform, which has an installed base of more than one million valves, the Alfa Laval Unique RV-ST UltraPure offers the same reliability, safety and ease of maintenance. Its offers protection class IP65 and IP67 for tough process environments.
A regulating valve with maximum flexibility
It uses the same few moveable components, spare parts and maintenance tools and procedures as Alfa Laval Unique SSV valves. Using the upgrade kit available, it is possible to upgrade older regulating valves with the new control unit. The new control unit also supports rebuild of the actuator from NC (Normally Closed) to NO (Normally Open) and vice versa.
Catálogo «A mano»
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CAD portal
The Alfa Laval CAD portal is an essential platform for downloading detailed product information, 2D drawings and 3D product models.
Service
Our dedicated Global Service Network supports you with parts and expertise, wherever you are, whenever you need it. By ensuring greater uptime, availability and optimization, we help bring you peace of mind, and maximize your return on investment. We can work with you to integrate our services into an Alfa Laval Service Agreement for predictable and worry-free operations.
Learn more about our service offer Troubleshooting
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