PARKER Parker Flow Valve Description

Parker Parker is the world's leading diversified manufacturer of motion and control technology and systems, offering a wide range of precision solutions for the mobile, industrial and aerospace markets. Parker Parker flow valves are available in:


Parker Parker MVI Series Cut-Off and Throttle
Parker Parker MVI Series Cut-Off and Throttle: The needle valve of the steel body can be mounted on the valve block in the form of a threaded cartridge valve. The spool can be selected from a 30 degree taper, a V-shaped cut or a rectangular cut. The shape of the orifice affects the accuracy of the flow regulation, which is related to pressure and viscosity. The needle valve spool is made of stainless steel and forms an annular gap in the valve barrel. The forming tool for machining the valve block hole is described in detail.

Parker Parker FS Series One-Way Throttle Valve
The Parker Parker FS Series One-Way Throttle Valve regulates flow in a defined flow direction. In the opposite direction, the oil flows through the installed check valve against a small flow resistance. The two-stage needle valve allows for precise adjustment of small flows in the first 3 turns of the adjustment knob. The rear 3 lap valves are all open. The adjustment result of the valve can be locked by the positioning bolt.

Parker Parker NS Series Cut-Off and Throttle
Parker Parker NS Series Cut-Off and Throttle 2-stage needle-cone needle adjustment knob The first 3 turns of the needle are level 1 and can be used to adjust the flow rate sensitively. The last 3 turns are level 2, which has ordinary throttling characteristics. In order to reduce the effect of viscosity, valves with a size of 400 and 600 can be used with cylindrical needle valves with rectangular cutouts. Flow is related to pressure and viscosity.

Parker Parker F Series One-way Throttle
The Parker Parker F-Series one-way throttle valve regulates flow in a defined flow direction. In the opposite direction, the oil flows through the installed check valve against a small flow resistance. The two-stage needle valve allows for precise adjustment of small flows in the first 3 turns of the adjustment knob. The rear 3 lap valves are all open. The adjustment result of the valve can be locked by the positioning bolt.

Parker Parker 6F Series One-Way Throttle Valve
Parker Parker 6F series one-way throttle valves have metric connection threads. The flow rate can be adjusted sensitively in the specified flow direction. In the opposite direction of the throttling action, the oil can flow freely through the bypass check valve.

Parker Parker N Series Cut-Off and Throttle
Parker Parker N Series Cut-Off and Throttle: The cut-off of the 2-stage needle-shaped cone and the first 3 turns of the adjustment knob of the throttle valve are Level 1, which allows for a sensitive adjustment of the flow. The last 3 turns are level 2, which has ordinary throttling characteristics. In order to reduce the effect of viscosity, a cylindrical needle valve with a rectangular cutout can be used for a valve having a structural size of 200 to 600. Flow is related to pressure and viscosity.

Parker Parker 6N Series Cut-Off and Throttle
The Parker Parker 6N series cut-off and throttle Manatrol-valve has a metric connection thread. Different needle spools are available for precise flow adjustment. The advantages are: the connection method conforms to the ISO6149 standard, it has a tapered contact surface for the O-ring; the metric connection thread; the O-ring can effectively prevent the leakage between the screw and the connecting thread; Replace within the scope.

Parker Parker MV Series Cut-Off and Throttle
Parker Parker MV Series Cut-Off and Throttle Needle Valves are available with a 30 degree taper, V-notch or rectangular cut-out spool. The shape of the orifice affects the accuracy of the flow regulation, which is related to pressure and viscosity. The needle spool is stainless steel and forms an annular gap within the valve barrel. Choice of steel or brass body and tubular or panel mounting.

Parker Parker 6MV Series Cut-Off and Throttle
The Parker Parker 6MV series cut-off and throttle Manatrol-valve has a metric connection thread. The needle spool allows precise adjustment of the flow rate. The advantages are: the connection method conforms to the ISO6149 standard, it has a tapered contact surface for the O-ring; the metric connection thread; the O-ring can effectively prevent the leakage between the screw and the connecting thread; Replace within the scope.

Parker Parker TDA Series Proportional Throttle Valve
The Parker Parker TDA series proportional throttle valve consists of three stages. The valve cone is pilot controlled by the servo spool of the seat valve structure. A proportional solenoid valve with force feedback adjusts the position of the servo spool. Therefore, the position of the valve cone is not affected by the pressure difference. The differential pressure can reach the maximum working pressure. The pilot controlled control oil flow is approximately 1 l/min. The minimum pressure for operation is 3 bar. The control pressure must be greater than 25% of the system pressure at port A. The flow adjustment accuracy is 0.5%. Since the flow characteristic curve is gradual, the adjustment accuracy is improved to 0.25% in the progressive region at a small flow rate. The adjustment time for the entire stroke is approximately 25ms. When the oil flows from B to A, there is no leakage from B to A at the initial position of closing. Pilot control does not require control oil at this initial position. The pressure at the return port T cannot be higher than 100 bar.

Parker Parker GFG Series 2-way Speed Control Valve
Parker Parker GFG Series 2-way Speed Control Valve: The 2-way speed control valve is a flow control element in the hydraulic system. The adjusted flow rate is independent of fluctuations in pressure, temperature and viscosity. The instantaneous oil pressure P (starting jump) at the time of the oil passage is prevented by the external control port P on the component structure. Structure: The 2-way speed control valve is composed of a triangular orifice and a differential pressure reducing valve. The adjusted flow value can be locked by a cylinder lock on the knob to prevent accidental changes.

Parker Parker PCMS Series 2-way Speed Control Valve
Parker Parker PCMS Series 2-way speed control valve: for pressure compensation adjustment of flow. As a result of the pressure change, the adjusted value can be varied within a tolerance of ± 5%. Of course, changes in viscosity can also have an effect and must be noticed.

Parker Parker PCM Series 2-way Speed Control Valve
Parker Parker PCM Series 2-way speed control valve: for pressure compensation adjustment of flow. As a result of the pressure change, the adjusted value can be varied within a tolerance of ± 5%. Of course, changes in viscosity can also have an effect and must be noticed.

Parker Parker DUR*L06 Series 2-way Proportional Speed Control Valve
Parker Parker DUR*L06 series 2-way proportional speed control valve: The DUR*L06 series proportional speed control valve can be used to electrically adjust the speed of hydraulic actuators (hydraulic cylinders, hydraulic motors). The flow can be independent of the load (load sensing) by the installed compensator pressure. It is further ensured that the temperature is independent of the pressure compensator. If the valve is equipped with a displacement feedback device, the displacement of the measuring spool and the opening of the pressure compensator should be electrically monitored and position adjusted. This can improve hysteresis and repeatability. The oil can flow through the check valve in the opposite direction. If it is necessary to flow into the actuator and the flow of the outflow actuator (for example, the differential cylinder) is independent of the load pressure, then a rectifier intermediate plate can be used to cause the oil flow to always flow through the working direction of the governor valve (from A to B).