DZ30 / DZ10 / DZ20 series pilot operated sequence valve pressure valves
1. Introduction of sequence valve
Sequence valve is a valve that controls the sequence of actuators in a system with more than two branch loops according to the pressure of the loop. The valve can also be used as a unloading valve and a back pressure valve.
2. Characteisticsof sequence valve
The basic function of sequence valves is to control the sequential actions of multiple performing elements, depending on their functions,
They are called sequence valves, back pressure valves, unloading valves and balance valves respectively. The performance of sequence valves is basically the same as that of relief valves, but due to different functions, there are special requirements for sequencel valves:
1) in order to realize the sequence action accurately, it is required that the pressure regulation accuracy of the sequence valve is high and the deviation is small;
(2) for the accuracy of sequential action, small leakage is required when the valve is closed;
For unidirectional sequential valves, the reverse pressure loss and forward pressure loss should be smaller. The main functions of sequential valves are:
(1) controlling the sequential actions of a plurality of elements;
(2) used in voltage control circuit;
(3) to prevent the cylinder piston from falling freely due to self-weight for the purpose of balancing the valve;
4) using the external control sequence valve as the unloading valve, so that the pump can be unloaded;
Use internal control sequence valve as back pressure valve.
3. Parameters of DZ series sequence valve
Three types of pressure regulation
With or without a one-way valve
Working Pressure (Mpa)
4. Other main products of valves
eletro hydraulic valve
pressure reduction valve
speed control valve
If you are interested in the valves above, pls tell me the specific model. No., then I will offer you the details. My wechat:+8613791342630 Lisa Sun.
5. Our company introduction
Dezhou Taigao Import and Export Co., Ltd. is located in Dezhou City, Shandong Province,China.
Our company has machining center, CNC lathe, grinder, boring machine, rocker drill, pipe locking machine and other processing equipments. It mainly produces ultra-high pressure hydraulic products, including hollow hydraulic cylinder, ultra-thin hydraulic cylinder, single action cylinder, super-large tonnage double-action hydraulic cylinder, valve base, manual pump, electric pump, Hydraulic cracking tool, split stone rod, portable rebar extruder, portable rebar bending machine, portable rebar straightening machine, various hydraulic pipe locks, many rescue equipments. The company also provides sales of electromagnetic valve, plunger pump, cargo lifters, hydraulic pressure packing-machine, rescue electric equipment and hand valves.
Dezhou Taigao import and export tries hard to create a professional sales company which has rich products and quality assurance to become one-stop service of purchase and wholesale of China's hydraulic accessories and equipments.