Samson 3277 Pneumatic Actuator with 3730-3 Process Controller | Size 1 | 120 cm | ANSI CL150 | 6.0 Bar / 90 PSI

What pressure, flow and temperature is it rated for?

The actuator is rated for 6.0 bar / 90 PSI maximum air supply and the valve flange connection is ANSI CL150. Flow and temperature ratings are not provided in the listing; you'll need to request the valve body specifications and materials documentation from the seller to determine process-side limits.

What gases is it compatible with, and has it been oxygen cleaned?

This is a pneumatic actuator assembly that uses compressed air for actuation—it does not contact process media directly. Compatibility with specific process gases depends on the valve body materials and trim components, which are not detailed here. The listing does not indicate oxygen cleaning or service history; ask the seller for prior service records if oxygen or oxidizer compatibility is required.

What should I inspect before putting it into service?

The listing specifies this unit requires re-certification before use for proper calibration and safe operation. Inspect the diaphragm for tears or hardening, verify stem travel and seating using bench tests, check all pneumatic connections for leaks, and confirm the 3730-3 controller responds correctly across its signal range. Request prior calibration records and any maintenance history from the seller to identify known wear points.