Adjustable flow control valve features and working principle
Adjustable flow control valve is a certain pressure difference, relying on the size of the throttle orifice to control the size of the flow control orifice, thereby regulating the implementation of components (hydraulic cylinder or hydraulic motor) speed of the valve. Mainly include throttle, governor valve, overflow throttle and shunt manifold and so on. The installation form is horizontal installation.
Sheng art flow control valve features:
Flow control valve, also known as 400X flow control valve, is a versatile valve that uses high-precision pilot flow control. Suitable for the distribution pipe to control the flow and pressure of the pipeline, to maintain a predetermined flow rate, the flow will be limited to a predetermined value, and appropriate to reduce the upstream high pressure, even if the main valve upstream pressure changes, it will not affect Flow downstream of the main valve.
Flow control valve selection: According to the pipe diameter selection. According to the maximum flow and valve flow range selection.
Art flow control valve works:
Digital flow control valve structure is composed of automatic spool, manual spool and display part. Display part by the flow valve movement, sensor transmitter, electronic calculator display part.
Its job is complicated. Measured water flow through the valve, the flow of water impact flow impeller impeller, impeller rotation and sensor senses, the sensor sends a signal proportional to the flow rate, the flow of electrical signals through the wire into the electronic calculator, through the calculator Calculation, microprocessor processing, the flow value is displayed.
Manual spool is used to adjust the flow, according to the display value to set the desired flow value. Automatic spool is used to maintain a constant flow, that is, when the pipe network pressure changes, the automatic spool will automatically open the fire under the pressure of small valve to maintain the set value unchanged.
Applications Flow control valve is mainly used in: central heating (cold) and other water systems, the network traffic distribution on demand, to eliminate water system imbalance, to solve the problem of uneven heating can be energy saving, saving 15% -20% .
Features 1. The flow can be set according to the design or actual requirements, to avoid blind adjustment, to simplify the complex transfer network work for a simple flow distribution; 2. To completely overcome the system uneven heating and cooling to improve the quality of heating and cooling; Reduce the design workload, do not need to carry on the tedious hydraulic balance calculation in the pipe network; 4.Remove the multi-heat source, pipe network when the heat source is switched over and redistribute the flowrate; 5. Flow movement part of the rotor adopts agate bearing to wear and not rust; 6 on the body of the sensor and sensor no power, the display uses a fully sealed structure, long service life; 7 when not working automatically sleep to save power, design life of more than ten years; 8. Display refresh four times, showing smooth. According to the design or actual requirements set flow, can automatically eliminate the pressure fluctuations in the system to maintain the same flow. To overcome the uneven system of hot and cold, improve heating (cooling) quality. Completely solve the pressure near the end of large, remote pressure small contradictions. Reduce the system of circulating water, reducing system resistance. Reduce the design workload, do not need to carry on the complicated hydraulic balance calculation to the pipe network. Reduce the difficulty of network transfer, the complexity of network transfer work simplified to a simple traffic distribution. Relieve the redistribution of traffic when switching the heat source of multi-heat pipe network. Flow display values ​​are randomly calibrated on the test bench, traffic
Selection according to the pipe diameter selection. According to the maximum flow and valve flow range selection. Technical parameters Medium temperature: 0-150 ℃; Working temperature: 150 ℃; Working pressure: 1.6MPa; Working pressure: 20-600KPa; Flow rate accuracy: 5%. Flow control valve material and life: Body - high quality gray iron trim - brass, stainless steel spring - stainless steel diaphragm - EPDM life - more than 10 years
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