Platon GR/GRV Plastic VA Flowmeter
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PLATON PLASTIC TUBE VA METER
TYPE GR, GRV
The Platon GR/GRV flowmeters are moulded plastic tube variable area meters with ball floats. The precision moulded tapered tube has guides to stabilise the float, allowing easy flow reading against the clear 50mm long scale. Units are available calibrated for air or water flows.
Typical applications are for operator monitoring of cooling, purging or sample flows. For simple adjustment of flow rates,the GRV option has a built in multi-turn flow control valve. Designed for vertical mounting on a control panel, the flowmeter is supplied with brackets for flush mounting through a cutout approximately 116 x 19mm. Alternatively the meter can be surface mounted.
For immediate indication of process alarm conditions, adjustable transparent indicators can be clipped into the flowmeter face, presenting a red limit line at the required flow rate. These accessories can be used to show the limits of normal flow adjustment, or an alarm level.
Reliable and rugged process connections are made to stainless steel 1/8 NPT female threads built into a stainless backplate within the meter. The polycarbonate body and flow tube is O-ring sealed to the backplate, and can simply be disassembled for any necessary cleaning or interchange of flow scales.
TYPE GR, GRV
The Platon GR/GRV flowmeters are moulded plastic tube variable area meters with ball floats. The precision moulded tapered tube has guides to stabilise the float, allowing easy flow reading against the clear 50mm long scale. Units are available calibrated for air or water flows.
Typical applications are for operator monitoring of cooling, purging or sample flows. For simple adjustment of flow rates,the GRV option has a built in multi-turn flow control valve. Designed for vertical mounting on a control panel, the flowmeter is supplied with brackets for flush mounting through a cutout approximately 116 x 19mm. Alternatively the meter can be surface mounted.
For immediate indication of process alarm conditions, adjustable transparent indicators can be clipped into the flowmeter face, presenting a red limit line at the required flow rate. These accessories can be used to show the limits of normal flow adjustment, or an alarm level.
Reliable and rugged process connections are made to stainless steel 1/8 NPT female threads built into a stainless backplate within the meter. The polycarbonate body and flow tube is O-ring sealed to the backplate, and can simply be disassembled for any necessary cleaning or interchange of flow scales.
Full Product Specification
| Materials: | Polycarbonate flowtube, Stainless steel connections,Neoprene O-ring seals |
| Float: | Dependent on flow range – (stainless steel/glass/tungsten carbide, monel typical) |
| Scale Length: | 50mm |
| Accuracy: | ±4% FSD |
| Connections: | 1/8” NPT rear facing female |
| Temperature: | 55°C maximum |
| Pressure: | 100psi/7 bar maximum |
| Flow Range: | 30-2,500 cm³/min (air @ ATP) 0.5-100 L/min (air @ ATP) 5-300 cm³/min (water @ 20ºC) |
Recommended Products
DFM All Plastic Variable Area Flowmeter
FLOWMETER MODEL DFM
All Plastic construction variable area flowmeters providing excellent chemical resistance and readability, supplied complete with end connections, either for solvent welding to PVC pipe or threaded. Up to three bi-stable alarms can be fitted to each unit or if required, a 4–20 mA transmitter is available.
ADVANTAGES
Platon GU Glass Tube VA Flowmeter
PLATON SAFETY HOUSED GAPMETER TYPE GU
Gapmeters type GU are glass tube Variable Area Flowmeters for direct display of liquid or gas flowrate. The GU housing provides a robust rigid frame, suitable for mounting directly into plant pipework, protecting the glass tube from pipework stress and random plant damage. The safety Perspex window gives good flow visibility, whilst protecting the operator. A safety blowout disc on the rear of the housing provides a relief vent for process fluids, in case of glass tube damage.
Glass tube VA flowmeters are simple and reliable in operation, and instantaneous in response – they offer flow visualisation to the operator, and the float rotation gives confirmation of correct meter performance. Standard tubes and floats offer low line pressure loss and a high resolution 100mm linear scale, fused into the glass tube. Fluid flow vertically upward through the tapered glass tube causes the float to rise to an equilibrium position. Flow rate is measured on the scale of the flow tube, along the top edge of the float.
The borosilicate glass tubes are individually scaled according to customers requirements, and individually flow calibrated.
FEATURES
Platon LG/NG Glass Variable Area Flowmeters
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Flow up the tapered tube lifts the float to an equilibrium position.Flow rate is then measured against the flat top edge of the float.
UKAS and Traceable Calibration
Roxspur Measurement & Control Ltd is an ISO 9001:2008 company, we offer UKAS and traceable calibration under BS/EN ISO17025 accredited procedures. Our certificate generation systems are purposely geared to meet the strict and specific requirement of the Aerospace industry.
Calibration
Based at our factory in Sheffield our accredited laboratories are available to provide either on-site or in-house calibration to either UKAS or national standards. We cover Temperature (up to 2,200ºC), Pressure (up to 1,200 bar), Flow (up to 2,500 L/min) and Electrical parameters and provide certification using the latest technology.
Our team of experienced on-site engineers hold accreditation for the on-site calibration of equipment including autoclaves, furnaces, thermocouples and probes, scales and balances, ovens and chambers, indicators and controllers, pressure and electrical. We cover the full spectrum of industry sectors. All calibration standards used meet the requirements of Table 3 of AMS 2750D, whether in the laboratory or on site, ensuring full compliance with the specification. To find out more about our on-site services please click here.
We supply thermocouples calibrated and certified to meet the requirements of Table 1 of AMS 2750D appropriate to customer specified usage.
Aerospace Heat Treatment Specialists
From the supply of a single thermocouple to fully managed service contracts, by working in partnership with our customers we can assist in obtaining and maintaining NADCAP approval. To find out more about our specialist aerospace services please click here.
Certification
Certificates generated are designed to meet the requirements of AMS 2750D with the option of UKAS certificates for added peace of mind.
DFM All Plastic Variable Area Flowmeter
FLOWMETER MODEL DFMAll Plastic construction variable area flowmeters providing excellent chemical resistance and readability, supplied complete with end connections, either for solvent welding to PVC pipe or threaded. Up to three bi-stable alarms can be fitted to each unit or if required, a 4–20 mA transmitter is available.
ADVANTAGES
- 3-50,000 L/h liquid in 13 ranges each with 10:1 operating span
- 6 different overall lengths from 165–350mm
- Choice of tube materials depending upon operating temperature and pressure up to 100°C and 10 Bar
- Positive pipe O-ring sealing requiring less tightening effort when installing
- Standard or magnetic floats (where alarms required) of identical mass ensure identical flow ranges when changing
Platon GU Glass Tube VA Flowmeter
PLATON SAFETY HOUSED GAPMETER TYPE GUGapmeters type GU are glass tube Variable Area Flowmeters for direct display of liquid or gas flowrate. The GU housing provides a robust rigid frame, suitable for mounting directly into plant pipework, protecting the glass tube from pipework stress and random plant damage. The safety Perspex window gives good flow visibility, whilst protecting the operator. A safety blowout disc on the rear of the housing provides a relief vent for process fluids, in case of glass tube damage.
Glass tube VA flowmeters are simple and reliable in operation, and instantaneous in response – they offer flow visualisation to the operator, and the float rotation gives confirmation of correct meter performance. Standard tubes and floats offer low line pressure loss and a high resolution 100mm linear scale, fused into the glass tube. Fluid flow vertically upward through the tapered glass tube causes the float to rise to an equilibrium position. Flow rate is measured on the scale of the flow tube, along the top edge of the float.
The borosilicate glass tubes are individually scaled according to customers requirements, and individually flow calibrated.
FEATURES
- Robust construction
- Instant flow rate visual indication
- Suitable for installation in unsupported pipework
- Flow tube scaled for any gas and most liquids
- Safety housed for operator protection
- Site interchangeable 140mm flowtubes
Platon LG/NG Glass Variable Area Flowmeters
PLATON GAPMETER TYPES LG/NG- Easy to Use, high visibility scale
- Simple and reliable
- Gas or Liquid flow measurement
- Operator confidence from float rotation
- Instantaneous response
- Accuracy up to ±1.25% FSD
- Air flow range 5mL/min to 150L/min
- Linear scales, typically 10:1 range
- Scales 100mm or 30mm long
- Glass tube removal without tools
- Alarm Option - ATEX Infrared Alarm Option
- Standard or custom scaled glass tubes to suit process fluids and conditions
- Wide range of process connections to fit pipe-work requirements
- Brass or stainless steel end blocks with optional flow control valve
- Supplied with studs for surface panel mounting
Flow up the tapered tube lifts the float to an equilibrium position.Flow rate is then measured against the flat top edge of the float.
UKAS and Traceable Calibration
Roxspur Measurement & Control Ltd is an ISO 9001:2008 company, we offer UKAS and traceable calibration under BS/EN ISO17025 accredited procedures. Our certificate generation systems are purposely geared to meet the strict and specific requirement of the Aerospace industry.Calibration
Based at our factory in Sheffield our accredited laboratories are available to provide either on-site or in-house calibration to either UKAS or national standards. We cover Temperature (up to 2,200ºC), Pressure (up to 1,200 bar), Flow (up to 2,500 L/min) and Electrical parameters and provide certification using the latest technology.
Our team of experienced on-site engineers hold accreditation for the on-site calibration of equipment including autoclaves, furnaces, thermocouples and probes, scales and balances, ovens and chambers, indicators and controllers, pressure and electrical. We cover the full spectrum of industry sectors. All calibration standards used meet the requirements of Table 3 of AMS 2750D, whether in the laboratory or on site, ensuring full compliance with the specification. To find out more about our on-site services please click here.
We supply thermocouples calibrated and certified to meet the requirements of Table 1 of AMS 2750D appropriate to customer specified usage.
Aerospace Heat Treatment Specialists
From the supply of a single thermocouple to fully managed service contracts, by working in partnership with our customers we can assist in obtaining and maintaining NADCAP approval. To find out more about our specialist aerospace services please click here.
Certification
Certificates generated are designed to meet the requirements of AMS 2750D with the option of UKAS certificates for added peace of mind.
