Spirax Sarco Type PN9330E Pneumatic Actuator
The Spirax Sarco PN9330E is a linear-output pneumatic actuator designed to provide reliable and precise control for industrial valve assemblies. Part of the renowned PN9000 series, this actuator is built for durability and long-cycle life in demanding steam, water, and process fluid applications.
This specific model is configured for a 6-18 psi spring range, making it ideal for modulating control where a gradual response to pneumatic signal changes is required.
Key Performance Features
Precision Control: Optimized for use with Spirax Sarco control valves, providing the necessary force to modulate flow accurately across a wide range of pressures.
Rugged Construction: Features a robust diaphragm and housing designed to withstand harsh industrial environments and frequent thermal cycling.
Versatile Signal Range: Operates on a standard 6-18 psi (0.4-1.2 bar) pneumatic signal, allowing for seamless integration into existing instrument air systems.
Linear Motion: Designed to convert air pressure into linear stem movement, ensuring consistent valve positioning.
Field Serviceable: Engineered for ease of maintenance, allowing for diaphragm or spring inspections with minimal downtime.
Technical Specifications
| Specification | Details |
| Manufacturer | Spirax Sarco |
| Model / Type | PN9330E |
| Category | Pneumatics / Actuators |
| Spring Range (Imperial) | 6 – 18 psi |
| Spring Range (Metric) | 0.4 – 1.2 bar |
| Identification Code | KMGM AK |
| Action | Linear Pneumatic |
Application Insight
Reliable Steam Management: The PN9000 series actuators are industry favorites for steam pressure and temperature control. When paired with a compatible positioner and valve body, the PN9330E provides the high-seating torque required to ensure tight shut-off and prevent leakage in critical process loops.
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