In systems with a high concentration of suspended particles, knife gate valves are a type of gate valve that are often utilized for full open or cut off services. When handling slurry, viscous, corrosive, or abrasive media, these valves are very helpful.
The gate works similarly to a knife in that it efficiently cuts through the medium and effectively breaks up any impurities that may be present in the medium in the pipeline. As a result, the classic gate valve’s leaking phenomena in a medium with solid impurities is fully eliminated. In their fully open state, these valves decrease pressure drop. This makes them simple to operate. Knife gate valves are economical and have a comparatively low weight.
Despite being a unique kind of gate valve, the knife gate valve functions similarly to a regular gate valve but with more advanced features which are being manufactured, supplied and exported by Axegic Valves. A knife-like oblique incision is present on the bottom of the valve plate, which may readily cut through the pipe flow medium. As a result, making shutting the valve very simple and efficient, even when the medium is semi-solid. The knife gate valve has manual, pneumatic, and electric drive modes, and its operating concept is relatively straightforward.
A typical Unidirectional Knife Gate is one of the few application-specific industrial valve designs with a single-piece durable and compact cast body construction that provides the best performance and may be used for simple to sophisticated demanding applications for material flow. A cost-effective, simple-to-use shut-off valve that controls the flow of very viscous fluids via the pipe system. Its design minimises contact between moving components by keeping the gate, which is essentially kept between a few layers of gland packing, from coming into contact with the body parts throughout the majority of its motion. With the help of gate wedges that are situated in the body, the gate and seat are finally sealed using a non-sliding motion.
This characteristic makes the valve more adept than other designs to handle abrasive particles in the medium. Even though solid particles have a tendency to settle at the bottom of the body, the bevelled bottom edge of the gate—from whence the term KNIFE is derived—enables positive closing of the valve. Knife gate valves are utilised in a variety of industrial sectors as a reliable solution to the leakage issue in media containing particles.
The grooveless knife gate valve is another name for the bidirectional knife gate valve. The body of the cast iron valve is constructed integrally. The bidirectional knife gate valve consists of a U-shaped sealing strip, the gate, and the valve body.
Grooves and an elastic U-shaped sealing strip are present on the bottom of the middle chamber, the valve body’s inlet, and the valve body’s outlet. When the valve is closed, the gate descends and makes contact with the sealing strip at its bottom edge. This forces the sealing strip into the groove, sealing the valve body and gate.
When the bidirectional knife gate valve is opened, the gate moves up, the bottom edge of the gate separates from the sealing strip, the sealing strip springs up, and the groove is flat. This can prevent medium sediment from settling in the groove of the middle cavity of the valve body during use of the knife gate valve, which is not easily blocked and has no residue, and the pipeline is easy to clean, effectively improving the sealing effect of the valve.
For lines with square and rectangular forms, Axegic’s Square and rectangular knife gate valves are designed. The major applications for rectangular Port knife gate valves are the discharge of bins and tanks. For the storage of solid items and highly charged fluids, under hoppers.
Design of a square knife gate valve for increased flow capacity and reduced pressure drop. Internal engineering prevents any accumulation of solids that can hinder valve closure. For a tighter shutoff, internal gates include guides and wedges.
Our facility is located in Ahmedabad, Gujarat, India, and we are a manufacturer, supplier, and exporter of knife gate valves and fabricated knife gate valves. Numerous industrial sectors have placed big orders and recurrent ones due to the unrivaled quality and exceptional performance. High durability, tensile strength, and resistance to harsh circumstances are also guaranteed by the use of premium raw materials in the production of the Fabricated Gate Valve (Knife Gate). The item’s accessibility at reasonable prices makes purchasing easier for consumers in India and abroad wherever it’s applicable or utilised.
Applications of Knife Gate Valve: –
Available in different sizes, AXEGIC can be customized as per the needs and requirements of the customers. Knife edge Gate Valves for
|Sizes||DN6 to DN50 ( NPS ¼ to NPS 2)|
|Pressure Rating||Class 150 & PN10 / PN 16|
|Design & Manufacturing Standard||MSS SP 81|
|Face to Face Std.||MSS SP81|
|End Connection Std.||MSS SP 81 / Flanged Ends as per ASME B16.5& ASME B16.10, PN 10 / PN 16 & TABLE – D & TABLE – E|
|Testing Standard||API 598 / BS 6755 PART-I|
|Type of Bore||Standard (Full Bore)|
|End Connection Type||Wafer Type, Lugged Type, Flanged Ends, etc.|
|Seat Design||Integral Metal Seated, Integral Weld Deposited, Replaceable Metal Seated, Replaceable Soft Seated as like, PTFE, RPTFE, EPDM, Nitrile, Viton, etc.|
|Operated Type||Hand Wheel, Chain Wheel, Gear, Pneumatic Cylinder, Electric Actuator,& Hydraulic cylinder etc.|