FAQs

How to troubleshoot a hydraulic system?

هیدرویار2017-01-20T14:01:43+03:30Many problems and defects in hydraulic systems have similar symptoms. For example, a sudden or gradual drop in pressure will reduce the speed or power of the cylinder. Sometimes the hydraulic cylinder may stop under load and not move at all. Often, a decrease in the power of the hydraulic system is accompanied by an increase in the volume of the pump. In troubleshooting a simple hydraulic system, the main components of this system, including filters, pumps, pressure relief valves, direction control valves or cylinders, may fail or have problems. Therefore, in order to diagnose and find the problem of the hydraulic system, the performance and condition of the mentioned components should be examined. Using the following step-by-step method, you can track the hydraulic system defects and, if necessary, repair the damaged parts or replace.

• Checking the smoothness (filter)
• Checking the pump and pressure breaker
• Check the cylinder
• Checking the starter valve

What is the function of hydraulic pump and how many pump models are there?

هیدرویار2017-01-20T14:01:41+03:30Hydraulic pump is the power source of many dynamic machines. These pumps push a large amount of oil through hydraulic cylinders. As a result, they convert mechanical energy into flow and pressure. Hydraulic pumps work on the displacement principle and consist of sealed mechanical housings in the pump. If you have noticed, there is a part in every system which is called the heart, and without that part, the whole system will fail. In hydraulic circuits, the pump acts as the heart and without it other components will fail. In fact, the duty of the pump is to flow the desired fluid Hydraulic pump models Because the hydraulic pump is widely used in various industries, it is divided into three main categories. Each of these categories is also divided into smaller categories. The main classification of this type of pump is as follows:

• Piston pump
• Gear pump
• Vane pump

Piston hydraulic pump The rotary mode is used in the structure of the piston hydraulic pump. In this way, in its structure, the pistons inside the cylinder perform a lot of reciprocating movement, and this is done with cylinders and pistons. This pump is divided into two categories, axial and radial. The property of these two categories can be called fixed or variable displacement. Geared hydraulic pump This gear pump is a kind of rotary pump in which the movement of fluid is done by the movement of gears. Two gears in this product are driven and movable. The movement of oil between these gears and the pump shell generates pressure. This type of pump is divided into two categories: internal gear pump and external gear pump. Vane hydraulic pump The vane pump consists of two separate parts, the body and the rotor. that the vanes are placed on the rotor and find the ability to move inside the grooves. The rotor is connected to the internal main drive and rotates with it. This type of pump is divided into five general categories, including external gear pump (external gear), internal gear pump (internal gear), earring pump, screw pump and gyrotor pump.

What types of hydraulic valves are there?

هیدرویار2017-01-20T14:01:38+03:30Hydraulic valves are one of the most key and influential parts of hydraulic systems. Basically, hydraulic valves are the control and command units of hydraulic systems. It is very important to know the functions and operation of the control components and it is one of the important duties of the designer. Hydraulic valves can be classified according to different rules, which include: type of operation, type of stimulation, etc.

• Direction control valve
• Pressure control valve
• Flow or flow control valve
• Proportional hydraulic valves
• Servo hydraulic valves
• Modular hydraulic valves