PARKER solenoid valve 491514Q3 available for immediate sale.

Brand

PARKER/American Parker

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Chemical, Petroleum, Mining, Road/Rail/Marine, Comprehensive

Parker Solenoid Valve Structure:

1—Adjusting Screw; 2—Valve Body; 3—Pressure Adjusting Spring; 4—Deflector Plate; 5—Cone Valve; 6—Damping Piston

Function

The damping piston serves two purposes: first, it dampens the cone valve during opening and closing, improving the valve's pressure regulation stability; second, it guides the cone valve, improving its sealing performance.

The deflector plate has an annular groove to change the direction of fluid flow at the cone valve outlet. This results in a hydraulic force acting on the deflector plate, opposite to the spring force, and increasing with the overflow rate. As the overflow rate increases, the cone valve opening widens, causing an increase in spring force. However, the increase in hydraulic force is offset by the structure's design. Therefore, the inlet pressure of this type of valve is unaffected by flow rate changes, its p-Q characteristic curve is relatively ideal, and its opening and closing characteristics are good, which is beneficial for increasing the valve's rated flow rate.

Analysis of the application of control methods for PARKER pressure control valves (USA)

1) Acting as a Parker safety valve (preventing hydraulic system overload): When the relief valve acts as a safety valve, it limits the maximum pressure of the hydraulic system to ensure system safety. Under normal system operation, the valve is closed and does not overflow; the system's working pressure is determined by the external load. When the system pressure reaches the valve's set pressure, the valve opens to overflow, and the system pressure is then determined by the relief valve's set pressure.

2) Acting as a Parker relief valve (maintaining constant hydraulic system pressure): In throttling speed control systems, the relief valve is normally open during normal operation, overflowing excess oil back to the tank to maintain a basically constant hydraulic system pressure.

3) Unloading the Parker hydraulic system: The remote control port of the pilot-operated relief valve is connected to the tank, allowing the system to be unloaded using the relief valve. The DBW-type pilot-operated solenoid relief valve can achieve system unloading using its own solenoid directional valve. Other pilot-operated relief valves require an additional directional valve to be added to the remote control port for system unloading.

4) Remote Pressure Regulation: Connecting a remote pressure regulating valve to the remote control port of the pilot-operated relief valve enables remote pressure regulation.

Parker solenoid valves are electromagnetically controlled industrial devices, fundamental components of automation used to control fluids. They are actuators, not limited to hydraulic or pneumatic systems. They are used in industrial control systems to adjust the direction, flow rate, speed, and other parameters of the medium. Solenoid valves can be used with different circuits to achieve the desired control, ensuring both accuracy and flexibility. There are many types of solenoid valves, each playing a different role in the control system. Commonly used types include check valves, safety valves, directional control valves, and speed regulating valves.

Parker solenoid valves contain a sealed chamber with through-holes at different positions, each connecting to a different oil pipe. Inside the chamber is a piston, flanked by two electromagnets. When the coil of one electromagnet is energized, the valve body is attracted to that side. Controlling the movement of the valve body opens or closes different drain holes. The inlet hole is always open, allowing hydraulic oil to enter different drain pipes. The oil pressure then pushes the piston in the cylinder, which in turn moves the piston rod, which in turn drives the mechanical device. Thus, controlling the current to the electromagnets controls the mechanical movement.

1. When installing a Parker 2-position 5-way solenoid valve, ensure the arrow on the valve body aligns with the direction of media flow. Do not install it in areas with direct dripping or splashing water. The Parker 2-position 5-way solenoid valve should be installed vertically upwards.

2. The Parker 2-position 5-way solenoid valve should operate normally within a power supply voltage fluctuation range of 15%-10% of the rated voltage.

3. After installation, there should be no reverse pressure differential in the pipeline. It needs to be powered on several times to reach the appropriate temperature before it can be put into formal use.

4. Before installing the Parker 2-position 5-way solenoid valve, the pipeline should be thoroughly cleaned. The medium introduced should be free of impurities. A filter should be installed before the valve.

5. When a Parker 2-position 5-way solenoid valve malfunctions or requires cleaning, a bypass device should be installed to ensure continued system operation.

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Our company's business scope includes:

Hydraulic components as follows:

Electromagnetic directional valves, directional valves, check valves, stack valves, relief valves, counterbalancing valves, proportional valves, manual directional valves, flow valves, pressure reducing valves;

throttle valves, pressure control valves, back pressure valves, filling valves, flow dividers, shuttle valves, pressure relays, cartridge valves, pneumatic valves, piston pumps;

gear pumps, vane pumps, cycloidal hydraulic motors, oil coolers, hydraulic cylinders, etc.;

Pneumatic components include:

air source processor assemblies, filters, pressure regulating valves, lubricators, solenoid valves, pneumatic valves, angle seat valves, manual valves, pull valves, foot valves;

mechanical valves, check valves, vacuum generators, cylinders, magnetic switches, shock absorbers, pressure gauges, quick couplings, floating couplings;

pressure gauge switches, water coolers, electric positioners, PU tubing, vacuum suction cups, oil filters, vibrators;

Electrical components include:

relays, sensors, converters, proximity switches, encoders, programmable logic controllers (PLCs). Our company maintains a large inventory, with standard parts readily available. To better serve our customers across various industries, we also distribute other spare parts, utilizing professional sourcing channels to ensure reasonable prices.

Our products are widely used in industrial machinery, machine tools, plastics machinery, shoe machinery, brick machinery, metallurgy, mining, chemical industry, papermaking, coal mining, shipbuilding, power generation, construction machinery, environmental protection machinery, and many other fields.

Short delivery times and low prices! New and existing customers are welcome to inquire and purchase!