DKJ41HVacuum Shut-off ValveOverview:

Vacuum shut-off valvesGate ValveIt is a valve of the same type, differing in that its closure piece is a valve body, which rotates around the centerline of the valve body to achieve opening and closing. Gate valves are primarily used in pipelines for cutting off, distributing, and altering the flow direction of media.

DKJ41HVacuum shut-off valve features:

1Low fluid resistance; its drag coefficient is equal to that of a pipe section of the same length.

2Simple structure, compact, and lightweight.

3Tight and reliable, the sealing surface material of the gate valve is widely used for plastics, offering good sealing properties, and is also extensively employed in vacuum systems.

4Easy to operate, quick opening and closing, from fully open to fully closed in just one turn.90°Convenient for long-distance control.

5Easier to maintain, the gate valve has a simple structure, with most sealing rings being removable and easy to replace.

6．In full open or full close position, the sealing surface of the sphere and the valve seat is isolated from the medium, so the medium passing through does not cause erosion to the valve sealing surface.

7Wide application range, suitable for pipe diameters from a few millimeters to several meters, and applicable from high vacuum to high pressure.

DKJ41HVacuum Shut-off ValveStructure:

1No friction in opening and closing. This feature completely solves the traditional[wiki]Valve[/wiki]Issue of sealing surfaces affecting the seal due to mutual friction.

2Upfit structure. Valves installed on pipelines can be directly inspected and maintained online, effectively reducing downtime and lowering costs.

3Single valve seat design. Eliminates the issue of using safety being affected by abnormal pressure increase in the valve cavity medium.

4Low-torque design. The valve rod with a special structure design can be easily opened and closed with just a small handwheel valve.

5Wedge seal structure. The valve is sealed by applying mechanical force through the valve stem, pressing the ball wedge onto the valve seat. This ensures the valve's sealing performance is unaffected by pipeline pressure differences, providing reliable sealing under various operating conditions.Guaranteed。

6Self-cleaning structure with a sealed cover. When the sphere moves away from the valve seat, the fluid in the pipeline flows along the sealing surface of the sphere360°Uniform flow not only eliminates the local erosion on the valve seat caused by high-speed fluids but also flushes away deposits on the sealing surface, achieving the purpose of self-cleaning.

7This series of valves features a casting and forging structure, employing parallel double sealing pairs with semi-forced bidirectional sealing. Zero leakage is achieved through stepwise actions of the sealing surface到位 movement and the wedge block楔紧 movement.

8The sealed surface has low friction during movement, operates easily, and features automatic compensation for wear on the sealing surface.

9Simple, compact structure, easy for maintenance, and long service life.

10The valve cover stuffing box is equipped with a vacuum-sealed structure, featuring an automatic expansion and tightness function. It is sealed with high-strength expansion material, ensuring complete isolation from the atmosphere and excellent system airtightness.

11This series of valves features two connection types: flanged and welded, with two driving methods available: manual and electric.

DKJ41HVacuum shut-off valveApplication:

Valves are suitable for operating temperatures≤425℃And≤550℃The working medium is water.SteamOr on air lines, as a shut-off device.

Suitable for power plant steam turbine condensers and vacuum negative pressure systems, serving as a vacuum isolation seal.

DKJ41HVacuum shut-off valveProduct Ordering Guidelines:

When the user has confirmed the type and model of the valve (especially non-standard models), the user should correctly describe the meaning and requirements of the model.

2. Customers should order according to the product models listed in the sample. If there are special requirements for the product items, please specify them in the order.

1) Structural Length2Flange Standard3Valve structural forms: such as full bore or reduced bore passage, body cover connection type4Valve internals and other material requirements5Pressure tests, inspection standards, labeling, and other requirements

3. When the application of valves is crucial or the environment is quite complex,Please provide the design drawings and detailed specifications, and our experts will review and ensure their accuracy.

4. Our company can customize electric devices according to specific customer requirements.,Pneumatic drive unit,Turbine unit.

5. Our company's valves of various types meet all the requirements specified in the order. Each product undergoes rigorous inspections and tests in accordance with the relevant standards before leaving the factory.

6. Zhong Zhi Valves guarantees all product warranties for: official installation and use by the customer12Within a month or upon product shipment18Within a month.

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