Programmable valve is an important part of pressure swing adsorption (PSA) or temperature swing adsorption (TSA) plant to complete the process, and it is also the key equipment to realize normal and reliable operation of the plant. DKT’s special programmable valves meet the zero leakage standard of American Petroleum Institute (API), and can be on and off for more than 1 million times without leakage. They have the functions of resisting frequent air scouring and automatic compensation of sealing materials.

Applicable pressure of programmable valve: ≤ 16MpaG.

Nominal diameter: shutoff valve ≤ DN400; three-eccentric center butterfly valve ≤ DN1600.

DKT’s programmable valves have the following characteristics:

1.Long service life, and no leakage occurs for more than 1 million times of on and off.

2.Fast closing speed. Depending on the diameter of the valve, the opening and closing time is within1-2 seconds.

3.The opening speed can be adjusted. According to the function of the programmable valve, different opening speeds can be adjusted. For example, the adsorption inlet and outlet valves need to be opened quickly, and the pressure equalizing valves need to be opened slowly.

4. The programmable valve has two-way flow, which does not affect the gas flow in the pressure equalizing process.

5. It has the functions of on-site indication of valve position and remote transmission of signals, which have a service life equivalent to that of the programmable valve, and meet the explosion-proof requirements of Zone 2.

6. The special wrapped anti-scour design is adopted on the valve spool structure, which greatly improves the service life of the sealing material.

7. The packing gland adopts radial and axial self-tightening sealing structure, and the valve stem adopts nickel-chromium alloy electroplating process to minimize the friction coefficient and ensure reliable external sealing performance.

8. In the large-diameter poppet valve, the structure with inner balance cylinder is adopted to reduce the volume of the actuator and make the valve appearance more good-looking.