Adjustment method of closed safety safety valve

     Closed safety valve is a kind of equipment that can be used in equipment and pipelines of air, petroleum gas and other media with a working temperature of ≤300℃. However, in some cases, the use of closed safety valve will cause excessive opening pressure Phenomenon. Generally, this phenomenon requires some adjustments. The adjustment methods are as follows:

     1. Before adjustment, tighten the closed safety valve adjusting screw to the loosest position so that the spring is not compressed or slightly compressed.

     2. Connect the oil pump power, stabilize the engine above the medium speed, and then turn the distributor operating handle to the "lift" position.

     3. Slowly screw in the safety valve adjusting screw to gradually increase the system pressure. When the pressure rises to allow the suspended agricultural tools to be lifted normally, and the distribution and operation handle "click" jumps from the "lift" position back to the "neutral" position At the time, tighten the screw as 1/8 turn to make the opening pressure of the safety valve slightly higher than the automatic return pressure of the handle, and then lock the adjusting screw with a lock nut.

     The above is the adjustment method steps of the closed safety safety valve, for your reference.