Alfa Laval Unique RV-P Regulating Valve
The Alfa Laval Unique RV-P Regulating Valve is an automatic hygienic regulating valve with an electro-pneumatic actuator for use in applications that require precision control of flow as well as pressure, temperature and tank fluid levels.
Alfa Laval’s regulating valves are used for adjusting or monitoring flow volumes and flow directions. It is specially designed for use in a broad range of metering, blending, weighing and filling system applications, they are ideal solutions for precision control of flow rate or pressure.
Extremely accurate valve flow recognition
Alfa Laval offers two regulating valves; Unique RV-P and aseptic version, Unique RV-P Aseptic. These normally open (NO) or normally closed (NC) regulating valves provide highly accurate control of pressure, flow, temperature and fluid levels in tanks and steel pipes.
Advanced hygienic valve design
Unique RV-P valves are ideal for high-volume sanitary process applications that require precision control. With a self-draining valve body, these valves are authorized to carry the 3-A symbol. Especially suitable for aseptic applications that require SIP (Sterilization in Place), the Unique RV-P valves are fitted with PTFE diaphragms that prevent contamination from micro-organisms and particles outside the product zone.
Extreme valve accuracy
The Unique RV-P features an electro-pneumatic actuator with integrated IP converter and integrated positioner, which contribute to greater operational accuracy and reliability. The positioner for Unique RV-P valves are IP66 certified for water and dust protection.
Regulating valves with Unique SSV modularity
The pneumatic actuated regulation valves from Alfa Laval are both built on the same Unique SSV platform and thus modular with the Alfa Laval single seat valve range. The Unique RV-ST is ideal for standard regulating duties like metering, blending, weighing and filling.
If the regulating demands increases then the Unique RV-P is the optimal choice. With a high precision actuator and positioner, it is ideal for regulation in applications where the highest accuracy is required. Based on modular components different plug configurations can be selected to meet specific Kv requirements. The lower sealing element is clamped on and can be replaced to match flexible Kv values.
Aseptic version
The aseptic version of Alfa Laval’s Unique RV-P is called Unique RV-P Aseptic. This is an electro-pneumatic modulating valve that features an IP converter as an integrated part of the actuator. Available with a range of plug designs with different Kv values, providing different capacities.
Supplied with an aseptic diaphragm that provide hermetic sealing against intrusion from the atmosphere, ensuring full protection against the effects of microorganisms during processing. This design allows aseptic control of pressure, flow, temperature in aseptic systems to control the level of liquids in aseptic tanks.
Like all Alfa Laval valves, the Unique RV-P is constructed with few moving parts housed in the actuator for added wear protection. Its compact hygienic design contributes the reduced need for maintenance and makes disassembly, if required, quick and easy. Plus there are o loose springs to pose any safety risk when opening the valve. The diaphragm is fully modular with the well proven diaphragms form the Unique SSV Aseptic portfolio.
Low maintenance requirements
Like all Alfa Laval valves, the Unique RV-P is constructed with few moving parts housed in the actuator for added wear protection. Being modular with the Unique SSV portfolio it is possible to optimize maintenance and makes disassembly, if required, quick and easy. Plus, there are no loose springs to create a safety risk when opening the valve.
Compliance with most hygienic standards
Alfa Laval Unique RV-P valves meet most standards requested in the dairy, food and beverage, and personal care industries.
Product Benefits
- Highly accurate control of pressure, flow, temperature and fluid levels.
- Advanced hygienic valve design
- Extreme valve accuracy
Construction
The Alfa Laval Unique RV-P regulating valve consists of a valve body without seal, cone-shaped regulating plug, lip seal, bonnet and an actuator. The actuator with the bonnet is fitted to the valve body by means of a clamp ring.
The standard valve is supplied with a standard normally open (NO) actuator. Upon request, it may also be supplied with a normally closed (NC) actuator.
Operating Principle
Alfa Laval Unique RV-P valves feature an electro-pneumatic actuator with an integrated IP converter, which provide accurate and reliable conversion of electric signals from a controller directly to pneumatic signals. With the contactless magnetic sensor technology, the actuator and positioner is insensitive to vibrations and pressure shocks.
The pneumatic signals are relayed to an integrated positioner, which operated by means of the force balance principle. This ensures that the position of the actuator piston is directly proportional to the input signal. Signal range and zero point can be adjusted individually.
By changing the standard measuring spring, the actuator may also be used for split-range operation.
