Flow Control Valves
|Minimum Order Quantity||1 Number|
|Type||Flow Control Valve|
|Valve Size||1/2'',3/4'' 1'' & 2''|
|Port Size||1/8 Inch, 1/4 Inch, 1/2 Inch|
, as the name suggests, control the rate of flow of a fluid through a hydraulic circuit. Flow-control valves accurately limit the fluid volume rate from fixed displacement pump to or from branch circuits. Their function is to provide velocity control of linear actuators, or speed control of rotary actuators. Typical application include regulating cutting tool speeds, spindle speeds, surface grinder speeds, and the travel rate of vertically supported loads moved upward and downward by forklifts, and dump lifts. Flow-control valves also allow one fixed displacement pump to supply two or more branch circuits fluid at different flow rates on a priority basis. Typically, fixed displacement pumps are sized to supply maximum system volume flow rate demands. For industrial applications feeding two or more branch circuits from one pressurized manifold source, an oversupply of fluid in any circuit operated by itself is virtually assured. Mobile applications that supply branch circuits, such as the power steering and front end loader from one pump pose a similar situation. If left unrestricted, branch circuits receiving an oversupply of fluid would operate at greater than specified velocity, increasing the likelihood of damage to work, hydraulic system and operator.
In order to understand the function and operation of flow-control devices, one must comprehend the various factors that determine the flow rate(Q) across an orifice or a restrictor. These are given as follows:
- Cross-sectional area of orifice.
- Shape of the orifice (round, square or triangular).
- Length of the restriction.
- Pressure difference across the orifice (Δp).
- Viscosity of the fluid.
or one-way flow control valves
regulate the piston speed of pneumatic drives during advance and return strokes. This is done through suitable restriction of the flow
rate of compressed air in exhaust air or supply air direction.
Flow rate 0 ... 3300 l/min; Port M3, M5, G1/8, G1/4, G3/8, G1/2, G3/4; Plug connector 3, 4, 6, 8, 10, 12 mm; Shut-off valves; Non-return and flow control valves.
- Production Capacity: high
- Delivery Time: 1-3 weeks
- Packaging Details: Damage Protection