Size: DN200 ~ DN2400
Nominal pressure: PN0.25 ~ PN2.5
Applicable media: water, steam, gas, oil, etc.
Medium temperature: ≤ 425℃
Valve open time: 10 ~ 60 seconds (adjustable)
Normal valve clearance: 10 ~ 90 seconds (adjustable)
Quick clearance time: 5 ~ 30 seconds (adjustable)
Slow clearance time: 6 ~ 90 seconds (adjustable)
Quick clearance angle: 70° ± 10°
Slow clearance angle: 20° ± 10°
Full-state minimum flow resistance coefficient: 0.3

DYK743HX series Double-sealed is a kind of self-control valves for the pump station, power station control system design of a new type of self-control valves. The valve fluid dynamics and the use of the current pipeline of new ideas valve control, the use of the electromagnetic interaction and the principle of hydraulic control, only set back to the hydraulic control valves, multifunctional pump control valves, relief valves and other non-return valve closure away the advantages of its shortcomings, the design of a new concept designed. Adjustable closure with a relief function, the automatic valve to achieve pump together, effective removal of water hammer disasters, the protection of pumps and pipe network security. Can be widely used in electric power, metallurgy, petroleum, petrochemical, mining, urban water supply and large-scale irrigation and drainage and other areas to the drainage works.

1, The valve pump station to replace the original system of electric valve and check valve function, the realization of a valve on behalf of the two valves, to reduce the area of space, saving the capital investment. At the same time, the source of their drive hydraulic fluid from the pipeline itself (medium to high water or sand, the water can be used for the driver) in order to avoid the use of hydraulic oil leaked when the disadvantages of pollution of the environment, it is surrounded by green products.

2, The valve can be linked with the water pump can be operated locally or retrofitted valve position signal generator to send the 4-20MA current analog valve control signal to the remote screen on the remote control. And in accordance with the special requirements of users choose to manually control, fluid-controlled hydraulic automatic control or full automatic control mode, multi-position to meet customers needs in the categories of products.

3, Deputy for the main valve seal structure of three-dimensional eccentric, an oval plate with the body axis of butterflies into a 75 °; this shorter trip headstock, Vice instantaneous realization of the sealed-off, and pressure seal extrusion force by friction torque into a pressure and reduce the friction torque to easily hoist valve.

4, The metal hardware with stainless steel valve sealing and wear-resistant rubber seal double coordination structure, brings together the advantages of soft and hard seal, increasing the reliability of the seal. Can also be based on different media, temperature and pressure alone a hard stainless steel high-performance wear-resistant rubber seal or soft seal structure to meet the additional needs of a total situation.