The Ryutai Kogyo PGF-N purge flowmeter belongs to the discontinued PGF series. Its original specifications remain available here for existing users.
For new requirements or replacement enquiries, see the Ryutai Kogyo PGH Purge Flowmeter.
Contact Seacom to check your flow range, fluid, operating conditions and installation before selecting a replacement.
The Ryutai Kogyo PGF series has been discontinued and superseded by the PGH series. This page retains earlier PGF-N information to help identify existing instruments and discuss replacement requirements.
View the current Ryutai Kogyo PGH Purge Flowmeter
The PGF-N is a variable-area purge flowmeter for small flows of compatible liquids and gases, including compressed air. Its glass taper tube provides local flow indication, while a metering valve allows manual adjustment. The scale is specified for the fluid and operating conditions.
The following details are retained from the original Seacom listing for reference. Check the instrument label and original order documentation for the specification of an installed unit.
| Specification | PGF-N reference |
|---|---|
| Measurement principle | Variable area |
| Listed air flow coverage | 2–2000 L/h (ntp) |
| Listed liquid flow coverage | 0.1–100 L/h |
| Connections | Rc ½-inch threaded |
| Accuracy | Within ±5% of full scale |
| Listed maximum temperature | 80°C; 60°C for continuous use |
| Listed maximum pressure | 5 bar |
| Materials | SUS304 and glass taper tube |
| Flow direction | Bottom to top |
Flow coverage represents the earlier product offering, not the measuring span of every individual meter. Readings must be interpreted using the scale and calibration conditions of the installed instrument.
Ryutai identifies PGH as the successor to PGF. Its PGH guide states mounting compatibility with PGF, but the replacement still needs to be selected for the actual service and connections.
| Check before replacement | Information to provide |
|---|---|
| Existing instrument | Complete model code, serial number and a clear photograph of the scale and label. |
| Fluid and flow | Liquid or gas type, required minimum and maximum flow, and scale units. |
| Operating conditions | Temperature and inlet and outlet pressures during measurement. |
| Installation | Thread size, mounting dimensions, panel thickness and photographs of the pipe connections. |
| Adjustment | Existing valve position and whether manual flow adjustment is required. |
Compare PGH specifications and valve configurations.
These original illustrations are retained for reference to the earlier product information; they do not describe the current PGH specification.
Contact Seacom with your existing PGF-N details and operating requirements. We can help check the appropriate PGH configuration and the installation changes, if any, needed for your application.
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The Ryutai Kogyo PGF-N purge flowmeter belongs to the discontinued PGF series. Its original specifications remain available here for existing users.
For new requirements or replacement enquiries, see the Ryutai Kogyo PGH Purge Flowmeter.
Contact Seacom to check your flow range, fluid, operating conditions and installation before selecting a replacement.
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PGF GMR GNR Catalogue
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