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PGF GMR GNR Catalogue
Flowmeter For Small Flow PGF GMF GNR
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Ryutai Kogyo PGF-N Purge Flowmeter — Discontinued
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.
Ryutai Kogyo PGF-N Purge Flowmeter — Discontinued
The Ryutai Kogyo PGF series has been discontinued and superseded by the PGH series.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
About the PGF-N
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.
Earlier PGF-N Specifications
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.
Replacing PGF-N with PGH
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.
Additional Pictures from the Earlier Listing
These original illustrations are retained for reference to the earlier product information; they do not describe the current PGH specification.
Need Help Selecting a Replacement Purge Flowmeter?
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.
9 other products in the same category:
Kofloc RK120XM Flow Meter for Gas Mixing combines two to four variable-area flowmeters into one compact unit for simple multicomponent gas mixing.
Each gas line has an individual inlet, calibrated flow scale and precision needle valve. The individually adjusted gases combine and leave through a common mixed-gas outlet.
- Mixing of two to four gas lines
- Individual flow indication and adjustment for each gas
- Flow ranges from 50 mL/min to 10 L/min
- Maximum 10 L/min per line and 20 L/min total
- Standard accuracy of ±2% full scale
- Precision non-rotating needle valves
- Brass or stainless-steel construction
- Suitable for laboratory and research gas mixing
Ryutai Kogyo PGH, GPB, GPC and AMF purge and panel flowmeters provide local flow indication for equipment and test systems.
- PGH: compact glass tube meter for small flows.
- GPB and GPC: glass tube panel meters with different flow capacities.
- AMF: lightweight acrylic tube panel meter.
- Choose the series, calibrated range and configuration to match the application.
The Ryutai Kogyo MCF and E-MCF references relate to earlier metal tube flowmeters and transmitters. This page supports existing instrument identification and replacement enquiries.
For current options, see the Ryutai Kogyo EM Series. Confirm the complete model, flow range, connections and electrical requirements before selecting a replacement.
The Ryutai Kogyo EM Series provides metal tube variable area flow measurement with local indication and optional electrical outputs.
- Model configurations for liquids, gases and steam.
- Options for remote flow monitoring, totalising and alarms.
- Select the model, materials and connections for your operating conditions.
The ONICON FT-3000 Series measures electrically conductive liquids in chilled-water, heating-water, condenser-water and other HVAC systems.
- Inline electromagnetic measurement with no moving parts.
- FT-3100 and FT-3200 transmitter options.
- Flow-rate and totalisation outputs, depending on configuration.
- Integral or remote transmitter mounting.
- Individually wet-calibrated with a calibration certificate.
The TOKICO PFA ultrasonic vortex flowmeter measures compatible chemicals, corrosive liquids and ultrapure water using PFA liquid-contacting construction.
- No moving parts.
- Connection sizes: 3/8, 1/2, 3/4 and 1 inch.
- Fluid temperature range: 0–100°C.
- Flow range and pressure rating depend on size and operating conditions.
- Local display with output functions according to configuration.
The Badger Meter ModMAG M2000 measures conductive liquid flow, with applications in data centre chilled-water and cooling-water systems. Communication options support integration with building and plant monitoring systems.
- Flow velocity range: 0.03–12 m/s
- Accuracy: ±0.20% of reading ±1 mm/s with suitable straight pipe
- Integral or remote transmitter arrangements
- BACnet, Modbus and other communication options
- Zero-straight-run capability subject to specified conditions
Ryutai Kogyo ADF and GDF water flowmeters provide direct visual flow indication for equipment and water piping.
- ADF: acrylic tube with Rc ½, Rc ¾ or Rc 1 connections.
- GDF: compact glass tube design with Rc ½ connections.
- Accuracy within ±5% of full scale.
- Vertical installation with bottom-to-top flow.
Ryutai Kogyo GTF, ATF, GTV and ATV variable area flowmeters provide direct visual indication of compatible liquid and gas flow.
- GTF: glass measuring tube with metal connection options.
- ATF: acrylic measuring tube with metal connection options.
- GTV: glass measuring tube with PVC connections.
- ATV: acrylic measuring tube with PVC connections.
- Vertical installation with bottom-to-top flow.