Plastic Paddle Flow Switches
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TRIMMABLE PLASTIC PADDLE FLOW SWITCHES
The V8 paddle flow switch is ideal for protection of unattended equipment from damage or loss of production.
Operation is simple and dependable. In most applications, the switch is normally off while there is sufficient flow of liquid or air. When flow stops, the vane spring moves the vane, actuating a single pole double throw switch rated at 5A 120/250Vac to start or stop a motor,pump, engine, etc; operate a damper or valve; shut down a burner or actuate an alarm or signal.
The V8 Flow Switch has a leak proof body and vane constructed of tough durable Polyhenylene Sulfide (equivalent to RYTON®) which has excellent chemical resistance. The full size trimmable vane is provided with moulded-in graduations allowing for installation in pipes from 1 inch to 6 inch diameter. The V8 control is UL recognized as an industrial motor controller per UL standard 508, suitable for mounting in a protected environment.
The V8 paddle flow switch is ideal for protection of unattended equipment from damage or loss of production.
Operation is simple and dependable. In most applications, the switch is normally off while there is sufficient flow of liquid or air. When flow stops, the vane spring moves the vane, actuating a single pole double throw switch rated at 5A 120/250Vac to start or stop a motor,pump, engine, etc; operate a damper or valve; shut down a burner or actuate an alarm or signal.
The V8 Flow Switch has a leak proof body and vane constructed of tough durable Polyhenylene Sulfide (equivalent to RYTON®) which has excellent chemical resistance. The full size trimmable vane is provided with moulded-in graduations allowing for installation in pipes from 1 inch to 6 inch diameter. The V8 control is UL recognized as an industrial motor controller per UL standard 508, suitable for mounting in a protected environment.
Full Product Specification
| Temperature Limit | 100°C (212°F) maximum |
| Pressure Limit | 10 bar (150 psig) |
| Piping Connection | 1” NPT installed in tee or bushing (not supplied). |
| Switch | One SPDT snap action switch 5 A, 125/250 Vac. |
| Wire | 3 x 460mm 18 AWG |
| Overall Length | 238mm |
| Vane | Field trimmable to fit most applications. |
| Weight | 0.13 kg (4.5 oz) |
| Switch Body | Molded Polyphenylene Sulfide (PPS) |
| Wetted Materials of Construction | Polyphenylene Sulfide, Ceramic 8 magnet, 316SS pin and spring. |
| Installation | Install with index arrow in direction of flow. IP 67 weatherproof options are also available. |
Recommended Products
Miniature Control Valve
AIR OPERATED CONTROL VALVE - THE ‘M’ VALVE
The M Valve is a miniature air operated proportional control valve for use on liquids or gases. Available for 1/4”and 1/2”line sizes, a wide range of inner valve trims offer flow control with CV values from 3.0 down to 0.00008. Each valve has a control range of as much as 40:1 and with interchangeable trims the M Valve is ideal for pilot plant control, representing a scaled down version of larger process control valves.
With linear, equal percentage and quick opening control characteristics, the M Valve also has specific application in dosing, sampling and blending systems. Standard valve material is forged 316 Stainless Steel: alternatives of Hastelloy, Monel, PVC or carbon steel body materials are available with Stellite or other trim materials as required.
The standard Air actuator uses a 3-15 psi control input of either Air-to-Open or Air-to-Close. For higher line pressure applications a standard top mounted positioner is recommended, incorporated into the valve. For high integrity applications, alternative designs of valve seal are available. Extension bonnets or cooling fins are used for cold service or high temperature duty.
FEATURES
Plastic Paddle Flow Switches
TRIMMABLE PLASTIC PADDLE FLOW SWITCHES
The V8 paddle flow switch is ideal for protection of unattended equipment from damage or loss of production.
Operation is simple and dependable. In most applications, the switch is normally off while there is sufficient flow of liquid or air. When flow stops, the vane spring moves the vane, actuating a single pole double throw switch rated at 5A 120/250Vac to start or stop a motor,pump, engine, etc; operate a damper or valve; shut down a burner or actuate an alarm or signal.
The V8 Flow Switch has a leak proof body and vane constructed of tough durable Polyhenylene Sulfide (equivalent to RYTON®) which has excellent chemical resistance. The full size trimmable vane is provided with moulded-in graduations allowing for installation in pipes from 1 inch to 6 inch diameter. The V8 control is UL recognized as an industrial motor controller per UL standard 508, suitable for mounting in a protected environment.
Platon Liquid Low Flow Alarm
For liquid low flow or flow failure alarm on cooling systems, water heaters or lubrication systems, the Platon LF flow switch is a rugged sensor with simple electrical reed switch output. Installed in a vertical line with flow upwards, normal flows lift the float in the sensor. A magnet encapsulated in the float then actuates a reed switch, giving contact closure. Should the flow drop to below the preset alarm level, the float falls to the rest position and the contacts open to give an alarm output.
The Model LF is available in 1/2” and 3/4” line sizes, with BSP female threaded connections. Alarm rates are factory set between 0.5 L/min and 10 L/min, to suit most applications. The standard unit is in brass, and has a one piece body suitable for high pressures, with no glands or seals to leak. The externally mounted reed switch has flying leads for local connection to a terminal block.
Typical applications are for water supply flow failure into heaters or boilers, where the flame or power supply is cut to prevent overheating accidents, for lubricant or cutting fluid flow failure in machine tools or gearboxes.
For flow failure alarm in cooling circuits, the LF flowswitch is used on X-ray equipment, electron microscopes, transformers, radio transmitters and high frequency generators.
FEATURES
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.
Miniature Control Valve
AIR OPERATED CONTROL VALVE - THE ‘M’ VALVEThe M Valve is a miniature air operated proportional control valve for use on liquids or gases. Available for 1/4”and 1/2”line sizes, a wide range of inner valve trims offer flow control with CV values from 3.0 down to 0.00008. Each valve has a control range of as much as 40:1 and with interchangeable trims the M Valve is ideal for pilot plant control, representing a scaled down version of larger process control valves.
With linear, equal percentage and quick opening control characteristics, the M Valve also has specific application in dosing, sampling and blending systems. Standard valve material is forged 316 Stainless Steel: alternatives of Hastelloy, Monel, PVC or carbon steel body materials are available with Stellite or other trim materials as required.
The standard Air actuator uses a 3-15 psi control input of either Air-to-Open or Air-to-Close. For higher line pressure applications a standard top mounted positioner is recommended, incorporated into the valve. For high integrity applications, alternative designs of valve seal are available. Extension bonnets or cooling fins are used for cold service or high temperature duty.
FEATURES
- 1/4” or 1/2” proportional control
- Interchangeable trims
- CV values 0.00008 to 3.0
- Air operated
- Stainless Steel valve and trim standard
- Linear or equal percentage control characteristics
- Accurate low flow control
Plastic Paddle Flow Switches
TRIMMABLE PLASTIC PADDLE FLOW SWITCHESThe V8 paddle flow switch is ideal for protection of unattended equipment from damage or loss of production.
Operation is simple and dependable. In most applications, the switch is normally off while there is sufficient flow of liquid or air. When flow stops, the vane spring moves the vane, actuating a single pole double throw switch rated at 5A 120/250Vac to start or stop a motor,pump, engine, etc; operate a damper or valve; shut down a burner or actuate an alarm or signal.
The V8 Flow Switch has a leak proof body and vane constructed of tough durable Polyhenylene Sulfide (equivalent to RYTON®) which has excellent chemical resistance. The full size trimmable vane is provided with moulded-in graduations allowing for installation in pipes from 1 inch to 6 inch diameter. The V8 control is UL recognized as an industrial motor controller per UL standard 508, suitable for mounting in a protected environment.
Platon Liquid Low Flow Alarm
For liquid low flow or flow failure alarm on cooling systems, water heaters or lubrication systems, the Platon LF flow switch is a rugged sensor with simple electrical reed switch output. Installed in a vertical line with flow upwards, normal flows lift the float in the sensor. A magnet encapsulated in the float then actuates a reed switch, giving contact closure. Should the flow drop to below the preset alarm level, the float falls to the rest position and the contacts open to give an alarm output.The Model LF is available in 1/2” and 3/4” line sizes, with BSP female threaded connections. Alarm rates are factory set between 0.5 L/min and 10 L/min, to suit most applications. The standard unit is in brass, and has a one piece body suitable for high pressures, with no glands or seals to leak. The externally mounted reed switch has flying leads for local connection to a terminal block.
Typical applications are for water supply flow failure into heaters or boilers, where the flame or power supply is cut to prevent overheating accidents, for lubricant or cutting fluid flow failure in machine tools or gearboxes.
For flow failure alarm in cooling circuits, the LF flowswitch is used on X-ray equipment, electron microscopes, transformers, radio transmitters and high frequency generators.
FEATURES
- Low cost flow alarm
- Simple rugged construction
- Brass,BSP connections
- Selectable alarm trip level (factory set)
- No glands or seals
- Stainless Steel and other special OEM versions available
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.
