Unique RV-P
Alfa Laval Unique RV-P 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.
The Unique RV-P Regulating Valve is designed for precise flow control in the Dairy, Food, Beverage, Biotechnology and Pharmaceutical industries, among many others.
Unique RV-P Benefits
- Precision flow control
- Advanced hygienic Valve design
- Dedicated protection
- Reliable operation
- Large operating range
Valves
Max. product pressure: 1000 kPa (10 bar)
Min. product pressure: Full vacuum
Temperature range (EPDM): -10 °C to 140 °C
Flow range Kv (Δ P = 1bar): 0.5 to 110 m³/h
Max. pressure drop: 500 kPa (5 bar)
Materials, Valves
Product wetted steel parts: Stainless steel, 1.4404 (AISI 316L)
Other steel parts: Stainless steel, 1.4301 (AISI 304)
Product wetted seals: EPDM
External finish: Semi-bright (blasted)
Internal finish: Bright (polished), Ra<0.8 µm
Materials, Actuator
Actuator cases: Aluminium with plastic coating
Diaphragms: NBR with reinforced fabric insert
Springs: Stainless steel uncovered/spring steel epoxy resin coated
Actuator stem: Polyamide
Screws, nuts: Stainless steel, polyamide
Other parts: Stainless steel
Unique RV-P Technical Data
Download the Full
Specification Sheet
Unique RV-P Regulatory Valve Key Features
Extremely Accurate Valve Flow Regulation
Alfa Laval offers two regulating Valves: Unique RV-P and an aseptic version, Unique RV-P Aseptic. These normally open or normally closed regulating valves provide highly accurate control of pressure, flow, temperature and fluid levels in tanks and in steel pipe systems.
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 microorganisms 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 duties like metering, blending, weighing and filling.
For the highest accuracy applications, the Unique RV-P, with its high precision actuator and positioner, is the ideal choice. Different plug configurations can be selected for specific Kv requirements. The lower sealing element can be replaced to match flexible Kv values.
Aseptic Version
The aseptic version of Alfa Laval’s Unique RV-P is the Unique RV-P Aseptic. This is an electro-pneumatic modulating Valve that has an IP converter as an integrated part of the actuator. Available with a range of plug designs with different Kv values and capacities.
This is supplied with an aseptic diaphragm that provides a hermetic seal against atmospheric intrusion, ensuring full protection from microorganisms. The design allows aseptic pressure, flow and temperature control in systems and liquid level control in tanks.
Like all Alfa Laval Valves, the Unique RV-P Aseptic’s actuator is constructed with few moving parts for added wear protection. Its compact hygienic design reduces maintenance needs and makes disassembly quick and easy. There are also no loose springs to pose a safety risk when opening the Valve. The diaphragm is fully modular with well-proven Unique SSV Aseptic portfolio diaphragms.
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 optimise maintenance routines and spare parts inventories in the plant. Its compact hygienic design contributes reduces the need for maintenance and makes disassembly, if required, quick and easy. Plus there are no loose springs to pose any 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. Please refer to Documentation for more information.
How the Unique RV-P Works
Construction
The Unique RV-P 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 accurately and reliably convert a controller's electrical signals to pneumatic signals.
The pneumatic signals relay to an integrated positioner, which operates with the force balance principle. This ensures the actuator piston position is directly proportional to the input signal.
For split-range operation, change the standard measuring spring.
Unique RV-P Product Documents
Recent Success Story
Dairy Expansion Improves Production Capacity, Hygiene, Uptime, and Savings
To boost productivity, the TINE Dairies, Norway’s largest Dairy producer, distributor and exporter, selected Dairy equipment from Alfa Laval based on proven safety, hygiene and economy.
Extend the performance of your Valves
Unique RV-P Servicing & Maintenance
Unique RV-P Valves are built for a wide range of duties across the Dairy, Food, Beverage, Personal Care, Biotechnology and Pharmaceutical industries.
Related Industries
Alfa Laval technologies improve sustainability through enhanced efficiency, reducing waste and emissions, while increasing yields and end product quality.
Alfa Laval provide high-performance components to maximise efficiency in tasks across the Dairy industry, from yoghurts and cheeses to milk, cream and butter.
Alfa Laval’s solutions increase output while minimising contamination and enhancing efficiency, making them ideal for applications in the Personal Care industry.

