Features:

The valve ball and valve seat after coating treatment are processed by special processing technology on all-empty machine tools to ensure product accuracy. After grinding with special equipment, they can reach mirror surface (within Ra O.2), porosity below 1%, and kerosene penetration test to ensure that the paper will not get wet for 24 hours. The hardness of this layer is 63-73HRC, the compressive strength is ≥3000Mpa, the bonding strength with the body is greater than ≥160Mpa, and the hydrostatic pressure strength test is ≥160 Mp. The finished valve ball and valve seat are placed in a vacuum pressurized special equipment and infiltrated with a layer of Si, Al low-torque material.

Product parameters

The third-party testing report on low friction, low torque switch feature

Detection test data: safety valve is in a closed state, the lower end is pressurized to 35Mpa, the torque required for a single person to open is 306N·m, 52Mpa, the switching torque is 430N·m, 70Mpa, and the switching torque is 1774N·m.

Safety valve is in the open state, the lower end is pressurized 35Mpa, the required torque for single person closing is 82N·m, 45Mpa, the closing torque is 81N·m, 70Mpa, and the switching torque is 114N·m.