Common Parker solenoid valve malfunctions are as follows:

Brand

PARKER/American Parker

Flow Direction

Other

3C Valve Category

Industry

Application Areas

Chemical, Petroleum, Energy, Electrical, General

Parker piston pump, Parker controller, Parker solenoid valve, Parker piston pump

Parker Solenoid Valve Performance Requirements:

1. Reversing Performance

Under specified operating conditions, can the solenoid valve reliably reverse direction after being energized, and reliably reset after being de-energized?

2. Pressure Loss

The pressure loss of a solenoid directional valve consists of flow loss and throttling loss generated when the fluid flows through the valve orifice.

3. Internal Leakage

The internal leakage of a solenoid directional valve refers to the leakage from the high-pressure chamber to the low-pressure chamber under specified operating conditions and in various operating positions.

4. Reversing and Reset Time

The time required from the energization of the solenoid to the termination of the valve core reversal; the reset time is the time required from the de-energization of the solenoid to the return of the valve core to its initial position. 5. Reversing frequency

The maximum number of reversing cycles allowed per unit time

6. Service life

The Parker solenoid valve is used until the main components are damaged, and it cannot perform normal reversing and reset actions, or until its main performance indicators deteriorate significantly and exceed the number of reversing cycles specified in the regulations. [1]

Common faults of Parker solenoid valves:

The Parker solenoid valve is composed of an electromagnetic coil and a magnetic core, and is a valve body containing one or more holes. When the coil is energized or de-energized, the operation of the magnetic core will cause the fluid to pass through the valve body or be cut off, so as to change the direction of the fluid. The electromagnetic components of the solenoid valve are composed of a fixed iron core, a moving iron core, a coil, etc.; the valve body is composed of a spool, a spool sleeve, a spring base, etc. The electromagnetic coil is directly installed on the valve body, and the valve body is sealed in a sealing tube, forming a simple and compact combination. The solenoid valves commonly used in our production include two-position three-way, two-position four-way, two-position five-way, etc. Here, let's first talk about the meaning of two-position: for the solenoid valve, it means energized and de-energized, and for the valve it controls, it means open and closed. A malfunction in a Parker solenoid valve will directly affect the operation of switching and regulating valves. Common malfunctions include the solenoid valve not operating. The following troubleshooting steps should be taken:

1. Loose or detached solenoid valve wiring: The solenoid valve will not receive power. Tighten the wiring.

2. Burned-out solenoid valve coil: Disconnect the solenoid valve wiring and use a multimeter to measure. If an open circuit is detected, the solenoid valve coil is burnt out. This can be caused by moisture in the coil, leading to poor insulation and magnetic leakage, resulting in excessive current and burnout. Therefore, prevent rainwater from entering the solenoid valve. Additionally, an overly stiff spring, excessive reaction force, or insufficient coil turns can also cause coil burnout. In an emergency, the manual button on the coil can be switched from the normal "0" position to the "1" position to open the valve.

3. Solenoid valve stuck: The clearance between the solenoid valve's spool and valve core is very small (less than 0.008mm), and they are usually assembled as a single piece. When mechanical impurities are introduced or there is insufficient lubrication, the valve can easily become stuck. One possible solution is to insert a steel wire through the small hole at the head to make it spring back. The fundamental solution is to disassemble the solenoid valve, remove the valve core and valve core sleeve, and clean them with CCI4 to ensure the valve core moves freely within the valve sleeve. During disassembly, pay attention to the assembly sequence of each component and the location of external wiring to ensure correct reassembly and wiring. Also check if the lubricator spray hole is blocked and if the lubricating oil is sufficient.

4. Air Leakage: Air leakage will cause insufficient air pressure, making it difficult to open and close the forced valve. This is caused by damaged gaskets or worn slide valves, resulting in air leakage between several cavities. When troubleshooting a solenoid valve malfunction in a switching system, choose an appropriate time to handle it when the solenoid valve is de-energized. If the problem cannot be resolved within a single switching interval, pause the switching system and handle it at a later time.

Parker solenoid valves are electromagnetically controlled industrial devices used to control fluids. They are fundamental automation components, belonging to the actuator category, and are 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 precision and flexibility. There are many types of solenoid valves, each playing a different role in the control system. Common types include check valves, safety valves, directional control valves, and speed control valves.

Parker solenoid valves have 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 10%-15% of the rated voltage.

3. After installation, there should be no reverse pressure differential in the pipeline. It should be energized several times to allow it to reach operating temperature before being put into formal use.

4. The pipeline should be thoroughly cleaned before installing the Parker 2-position 5-way solenoid valve. The introduced medium 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.

PHS520D-8-110V-D

PHS520D-8-110V-DL

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Our company mainly deals in European and American brands and can source brands from any European country. For example, our advantageous German brands include: BURKERT, DEMAG, HAWE, REXROTH, HYDAC, PILZ relays, FESTO, IFM sensors, E+H, HEIDENHAIN, P+F sensors, SICK, TURCK, and HIRSCHMANN industrial switches. German brands: Hengstler, Murr, Schmersal, Samson, EPRO (Emerson Group)

American brands: MOOG, ASCO, MAC, NUMATICS, PARKER, VICKERS, ROSS

British brands: Norgren

Italian brands: OMAL, ATOS, CAMOZZI, UNIVER, Camozzi