DFM All Plastic Variable Area Flowmeter
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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
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
- 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
Full Product Specification
| Tube Material | PVC(Options: Polyamide, Polysulphon) |
| Float Material | PVDF |
| Float Trap | PVDF |
| Union Nut | PVC (Options: Cast Iron, St/steel) |
| Inserts | PVC (Options: St/steel) |
| O-rings | EPDM (Options:Viton,Teflon) |
| Max. Pressure | 10 Bar operating (at 20°C) |
| Installation | Vertical - Flow upwards. For best results ensure pipework vertical to within 2-3° |
| Nominal Size | DN 25 to DN 65 (1” to 21/2”) |
| Temperature | PVC 60°C PA 75°C PSU 100°C |
| Connections | Rigid PVC socket connections for adhesive pipe coupling, BSP threads available Special stainless steel inserts available |
| Accuracy | ±2.5% full scale |
| Flow Range | 3-50,000 L/h liquid in 13 ranges each with 10:1 operating span |
Recommended Products
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Please call one of our Technical Sales Team on +44 (0)870 220 0724 for more details.
Platon Flow Alarms For Glass VA
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FEATURES
Platon LG/NG Glass Variable Area Flowmeters
PLATON GAPMETER TYPES LG/NG
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.
DFM350 Bi-Stable Alarm and 4-20mA Transmitter
DMF350 all plastic VA flowmeters provide 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 4-20mA transmitter is available. All units are available on quick delivery from our extensive stock.Please call one of our Technical Sales Team on +44 (0)870 220 0724 for more details.
Platon Flow Alarms For Glass VA
PLATON FLOSCAN INFRA-RED FLOW ALARM SYSTEMSPlaton Floscan sensors use an infra-red beam across the glass flowtube of a Variable Area (VA) flowmeter. Passage of the float between the sensor arms is detected, and logic within the electronics determines whether the float is above or below the sensor position. Electronics inside the sensor module gives an open collector transistor output, suitable for external logic circuits.
Suitable for all gas flows, and liquid flows where the float is visible, the sensor is clipped to the back of the flowmeter frame, typically on a Platon NG/NGX Series (normal 100mm scale) or LG/LGX series (miniature 30mm scale) VA meter.
Movement up and down the frame allows the sensor to provide a flow alarm at any point on the tube scale, as required. The sensor can also be supplied on Platon GU or SGUV style flowmeters.
The optional mains interface and relay module is used to provide the DC power needed to drive the sensor electronics, plus a SPCO 8 Amp mains relay output. This relay acts as a slave to the transistor output from the sensor module. Each Floscan relay module has two output relays, and can be used to monitor two separate alarm sensors.
FEATURES
- High or Low flow alarm
- Intelligent: Knows whether float above or below sensor
- Adjustable over full range of flowtube
- Suitable for normal (NG/NGX) or miniature (LG/LGX) flowmeters
- DC output direct to standard logic circuits
- Optional mains interface relay module
- ATEX approval (Directive 94/9/EC)
- EMC approval (Directive 2004/108/EC)
Platon LG/NG Glass Variable Area Flowmeters
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- Simple and reliable
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- 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.
