FV Automatic Flow Controller
Platon Type FV Flostats automatically regulate the flow of liquids or gases by using available line pressure. Once adjusted to the required value, flow is maintained accurately at this rate independent of supply pressure fluctuations or varying back pressure downstream of the meter. No electrical power or external flow measurement input is required – the Flostat control system uses the available line pressure to control the balanced control valve, maintaining the flow rate at the operator preset value.
Accurate flow control is vital to a wide variety of processes, for example blending and dosing applications. By keeping the required fluid delivery rate constant, a Flostat can ensure consistent product quality irrespective of process liquid head changes throughout a batch.
Flostat Type FV Flow controllers are used in flow control systems such as aircraft fuel delivery systems, to prevent the hazard of excessive flows and protect metering systems from over-speeding. On natural gas or fuel oil delivery systems to multiple burners, Flostat units can maintain optimum flow rate to each burner independently.
Available in sizes from ½" to 4", all Type FV units can be fitted with a flow scale plate calibrated for process conditions.
- Fully automatic flow control
- No power required
- 1/2" – 4" line sizes
- 10:1 control range
- Fast response
- Suitable for hazardous liquids or gases
|Materials||1/2” – 3/4”||Brass (FVAB or FVBB) or 316 stainless steel (FVAS or FVBS)|
|1” – 4”||Cast iron (FVC) or 316 stainless steel (FVS)|
|Valve Trim||Stainless steel|
|Diaphragm||Nitrile or PTFE|
|Connection||1/2” – 3/4”||BSP female threads|
|1” – 4”||Flanged to BS, EN or ANSI|
|Type A||Constant upstream pressure|
Variable downstream pressure
|Type B||Variable upstream pressure|
Constant downstream pressure
|Rangeability||10:1 turndown of flow|
|Max pressure||16 bar (or flange rating it lower)|
|Max controllable pressure|
|Max temperature||80°C with nitrile diaphragm|
100°C with PTFE diaphragm
|Flow scale plate||Standard on 1” – 4” units|
Option on 1/2” – 3/4” units