Unox Manual Knife Gate Valve

What is a Manual Knife Gate Valve?

A manual knife gate valve is a type of valve that uses a gate or wedge-shaped disc to control the flow of liquid through a pipeline. The gate is operated manually by turning a handle or wheel, which raises or lowers the gate to open or close the valve. It is called a "knife gate" because the sharp edge of the gate allows it to cut through solids that may be present in the liquid.

This type of valve is widely used in applications where quick shut-off is required, such as irrigation systems, wastewater treatment plants, and industrial process lines. Additionally, because the sharp edge of the gate effectively cuts and stops the flow of solids, it is commonly used in applications where liquids may contain suspended solids.

Technical Specifications of Manual Knife Gate Valve

• Body Material: GGG-40

• Gate Material: AISI 304, AISI 316

• Seat Ring: EPDM, NBR, Viton, Teflon

• Operating Temperature: -10 ºC to +110 ºC

• Operating Pressure: 16 Bar

• Pressure Rating: PN16

General Features of Manual Knife Gate Valve

It should be noted that this is a knife gate valve. Its general features include:

• Provides one-way sealing, so installation orientation must be considered.

• Can be installed at the end of a pipeline between two flanges or using opposing flanges. PN10 flanges are available.

• The gate sealing gasket is replaceable on-site.

• Suitable for actuator installation thanks to the top flange.

• The EPDM rubber gasket is seated within the valve body.

• Available in manual handwheel, pneumatic piston, electric actuator, and gearbox-operated models.

Applications of Manual Knife Gate Valve

• Slurry liquids

• Wastewater, hot and cold water

• Plant installations

• Water treatment plants

• Pump stations

• Tanks

• Seawater applications

• Power plants

• Industrial applications