Select the hydraulic valve

In the selection of the hydraulic valve, be sure to see the flow and pressure range, but also pay attention to the flow-pressure curve, if the selection is too small, often cause system pressure loss is too large, the system heat, if the selection is too large, wasteful economy. Two hydraulic valve sealing material optional Viton seals suitable for phosphate medium, NBR seals suitable for mineral oil medium, according to media actually used to select, Viton seal hydraulic valve to be more expensive. When selecting the best conditions for children member selected valve do performance testing, foolproof. Component selection, to the hydraulic schematic diagram of the respective valve type, each channel code, the tool code, each port of the code and the size of a good mark for the hydraulic valve design and proofreading.

Hydraulic valve design

Hydraulic valve design is reasonable to place the various valves to each side hydraulic valve block and hydraulic schematic diagram according to the decision the relevant channels of communication. Both work was carried out a cross, when considering the placement of the valve, it is necessary to consider the case in communication channels, and in the placement of the situation when communication channels, but also change the valve. Hydraulic valve arrangement designed to obtain reasonable channels to minimize deep, inclined holes and technological holes. Hydraulic valve design cumbersome, time-consuming and error-prone.

Hydraulic valve classification

Hydraulic valves according to its installation can be divided into hydraulic valve block, plate hydraulic valves, hydraulic valves and superimposed Cartridge valve and threaded cartridge valves and other five. Connection pipe hydraulic valve for pipe connection, not the composition of a hydraulic valve. According to the hydraulic valve on the main valve types can be divided into plate valve, stacking valve, a way cartridge valve and threaded cartridge valve.

The importance of a hydraulic valve in the hydraulic system

The importance of a hydraulic valve in the hydraulic system has been recognized by more and more people, more and more extensive range of applications. The use of hydraulic valve hydraulic system not only simplifies design and installation, and easy to achieve integration and standardization of hydraulic systems, help to reduce manufacturing costs and improve accuracy and reliability. However, with the degree of complexity of the hydraulic valve manifold system to improve the hydraulic valve design, manufacture and commissioning of increasing difficulty, if ill-considered design, it will cause a complex manufacturing process, the processing costs, raw material waste and use of maintenance problems and a series of problems.

Hydraulic Drive System

hydraulic transmission with its transmission smooth, easy control, power volume ratio and other excellent properties in many areas has been widely applied, hydraulic system configurations currently used hydraulic components integrated configuration, the hydraulic valve is integrated in the hydraulic valve block The surface, which is called hydraulic valve assemblies, hydraulic valve abandon the whole structure of the hydraulic pipe connection of complex messy, easy to leak, shortcomings bulky and inconvenient installation, compact structure, good sealing performance, easy maintenance and facilitate technology security and other advantages.

Six common hydraulic valves

Six common hydraulic valves：
1, the directional control valve: check valve, check valve, solenoid valve, hydraulic valve, hydraulic valve, manual valve, directional control valve other varieties;
2, the pressure control valve: relief, electromagnetic relief valve, unloading relief valve, valves, sequence valves, pressure switch, pressure gauge switches;
3, the flow control valve: throttle, throttle travel, control valve, shunt - flow valve and the like;
4, electro-hydraulic valve manifold
6, the logic valve5, the proportional control valve servo valve

History of the proportional control valve

In the conventional type of hydraulic valve block, hydraulic pressure can only be valued control, such as: pressure valve at a set pressure moving testimony, the flow through the valve to maintain the set flow direction through the valve to the flow direction on / off switch, so the system functions of these control valves are subject to some restrictions, as technology advances, continuously or proportionally change with the control valve input signal varies in many hydraulic systems required flow and hydraulic servo system although able to meet their requirements, and high precision, but for most of the industries, they are not required to have such a high-quality system, and hope that under the conditions of guaranteed control performance, while inexpensive, reliable, maintenance is simple, so the proportional control valve is in this context to develop.

Parher is a professional manufacturer of hydraulic components

Parher is a professional manufacturer of hydraulic components, such as hydraulic fittings, fittings, hoses, machinery, oil block, a pipe wrench and bulk products, machinery factory. Has a number of professional and technical Engineering, digestion and absorption of Japan, Germany, the United States and other developed countries advanced technology to develop and manufacture its own hydraulic control components and a full set of accessories to meet customer needs. Improving processing and testing equipment, reliable product performance and stability.
It is also a unit certified by ISO9001 and UKAS Britain and China Hydraulics Pneumatics & Seals Industry Association. It is in the unit trust product quality and Technical Supervision.