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Vaycom Model KQ Square Knife Gate Valves have proven to be a highly efficient solution for the discharge of silos and bins handling solid products and highly charged fluids.

In this article, we will explore in detail the features and advantages of these square and rectangular valves that are essential in a variety of industries, from the paper mill to the mining industry.

KQ Square Knife Gate Valve

Robust and Flexible Design

With their robust design and welded construction, they are highly resistant and durable.  Versatile in construction, they can be designed in both square and rectangular formats, and can thus be adapted to the needs of the client and each installation.

Design and Pressure Standards

To meet quality and safety standards, KQ valves are available in a variety of design standards, including EN1092 PN10, DIN PN10, ASME B16.5 (class 150), and ANSI150.

They can withstand a range of pressures from 1 bar to 4 bar depending on the size of each valve.


The choice of materials is essential to ensure compatibility with the products being handled. KQ knife gate valves offer high quality material options for body, gate and packing.

Available materials include S275JR, AISI304L, AISI316L and others on request. Gasket can be SYNT+PTFE, Graphite or O-ring, providing flexibility and adaptability to different environments.

Variety of Seats and Actuators

KQ valves feature a variety of seats, including Metal/Metal, EPDM, Viton and Silicone, to ensure proper sealing in various applications.

In addition, these valves can be operated by a wide range of actuators, from handwheels and levers to pneumatic, hydraulic, and electric actuators, making them easy to integrate into automated systems.

Square Knife Gate Valve applications in Various Industries

Vaycom Engineering KQ knife gate valves are suitable for different industries and uses, but they are mainly recommended for gravity discharge applications of fluids heavily loaded with solids, such as the emptying of aggregate hoppers, granulates, chips,…

Accessories and Customised Options

To suit specific needs, KQ valves can be equipped with a variety of accessories, such as deflector cone, reinforced bushing, scraper bushing, cleaning injections, emergency manual override, limit switches, proximity switches, solenoid valves, strainers, emergency systems, junction box, actuator extensions and much more.

Vaycom’s KQ square knife gate valves are a versatile and reliable solution for the discharge of solids and highly charged fluids.

With their robust design, variety of materials and customization options, these valves are essential in a variety of industries. If you are looking for an efficient and durable solution for your unloading needs, KQ valves are a wise choice.

For more information on these Vaycom KQ square knife gate valves, we invite you to download the product data sheet or contact Vaycom directly.