Concealed stem knife gate valve

Product Overview

The Non-Rising Stem Knife Gate Valve is an advanced valve solution designed for applications where space saving and ease of installation are important. Unlike traditional rising stem valves, non-rising stem knife gate valves utilize a unique stem design that eliminates the need to lift the stem during operation, making them ideal for confined spaces. These valves are commonly used in industries such as wastewater treatment, chemical processing, mining, pulp and paper, where reliable isolation of slurries, viscous liquids and other fluids containing solid particles is critical. The sharp gate design ensures smooth operation in even the most challenging conditions, while minimizing wear and extending valve life.

Product Characteristics

Non-rising stem design: The non-rising stem construction ensures that the stem does not move vertically, but rather rotates, during valve operation, making it particularly suitable for applications where vertical space is limited. This design reduces the overall height of the valve, making installation and operation easier in confined spaces.

Knife Gate Construction: Knife gates feature sharp blades capable of cutting through thick, abrasive slurries, viscous liquids and fluids containing solid particles. The knife gate mechanism provides excellent sealing performance and minimizes the risk of clogging, ensuring a long service life even in demanding applications.

Durable materials: The valve body is usually made of carbon steel, stainless steel or ductile iron, depending on the application. The gate itself is usually made of hardened steel or stainless steel, and the sealing material is available in rubber, PTFE or metal seals for optimal performance in a wide range of media.

Multiple actuation options: The concealed stem knife gate valve can be operated manually (via handwheel) or equipped with electric, pneumatic or hydraulic actuators for automated operation. This flexibility makes it easy to integrate into automation systems, remote operation or centralized control.

Compact Design: The concealed stem design reduces space requirements compared to traditional open stem knife gate valves, making it ideal for installations where vertical space is restricted. Its compact size ensures ease of installation and maintenance, especially in tight spaces.

Product Advantages

Space saving: Non-rising stem construction significantly reduces the vertical space required for valve operation, making it ideal for compact installations or systems with limited height.

Efficient Cutting and Sealing: Knife gate valves are designed to efficiently cut through thick slurries, sludge, and viscous media, ensuring smooth valve operation and reliable sealing even under harsh conditions.

DURABILITY AND RELIABILITY: The valves are constructed of high quality materials to withstand harsh operating conditions and handle abrasive, corrosive, and viscous fluids, ensuring long service life and reduced downtime.

ECONOMICALLY EFFICIENT: The Non-Rising Stem Knife Gate Valve provides an economical solution for applications where vertical space is limited without any compromise in performance. It provides reliable isolation at a lower cost than larger, more complex valve designs.

Low Maintenance Costs: Non-rising stem knife gate valves have fewer moving parts than other types of valves, making them easy to maintain. Its simple design ensures minimal valve maintenance, which reduces maintenance costs and downtime.