Overview
The Bettis RP 450 pneumatic valve actuator (part number 118235) delivers dependable pneumatic actuation for quarter-turn industrial valves. This double-acting model operates at a maximum pressure of 120 PSI, making it suitable for process automation, flow control, and isolation applications across manufacturing, utilities, and petrochemical sectors. The compact rack-and-pinion design provides consistent rotary output with minimal external envelope.
Key Features
- Double-acting pneumatic design for reliable bidirectional valve operation
- Rated for maximum 120 PSI operating pressure
- Compact rack-and-pinion mechanism for smooth quarter-turn actuation
- Durable construction suitable for harsh industrial environments
- Direct flange or foot mounting options for flexible installation
Technical Specifications
The following specifications define the Bettis RP 450 actuator’s operating envelope:
- Maximum Operating Pressure: 120 PSI
- Actuation Type: Double-acting pneumatic
- Mechanism: Rack and pinion
- Output: Quarter-turn rotary (90°)
- Model Series: RP 450
- Part Number: 118235 (Bettis SKU)
- Manufacturer: Bettis (Emerson Division)
- Valve Compatibility: Standard ISO and API flange configurations
Typical Applications
The Bettis RP 450 is commonly deployed in:
- Ball valve and butterfly valve automation in flow control systems
- On/off isolation duty in process pipelines
- HVAC damper and louver control
- Water treatment and wastewater management equipment
- Industrial process automation and emergency shutoff service
Compatibility & Replacements
Compatible With
- Standard ISO and API flange-mounted quarter-turn ball valves
- Butterfly valves with compatible mounting patterns
- Industrial pneumatic control systems (2/3-port directional control valves)
- Standard pneumatic supply lines (1/4″ NPT, 3/8″ NPT ports)
- Low-pressure pilot actuation systems
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator or controls engineer before ordering. The Bettis RP 450 (118235) may interchange with other Bettis RP-series models of identical size and pressure rating; consult manufacturer documentation or distributor technical support to confirm compatibility with your existing installation.
Works With
- Pneumatic directional control valves (solenoid or pilot-operated)
- Industrial PLC and automation controller I/O modules
- Pneumatic circuit design using ISO 1219 symbology
- Flow and pressure regulators (ANSI/CETOP mounting)
- Standard pneumatic hoses and fittings (SAE/ISO port configurations)
