Knife Gate Valves

Product Code : 08

Product Specification

Knife Gate Valves

We specializes in providing our customers with Knife Gate Valves that are designed using latest technology to cater various growing challenges of the industry. We have developed an exclusive range of valves that are widely used in diverse industries. These valves are durable and sturdy by frame and are anti corrosive in nature. Our Knife Gate Valves are dimensionally quite accurate and have uniform formation which is necessary to cater needs of our various clients. These valves are checked for their quality and efficacy before being consumed in the market. We offer best deals at really affordable prices.

Features:

Knife gate is one of the few application-specific designs among industrial valves. It basically features a design that ensures minimum contact between moving parts of the valves. This is achieved by having a gate that is practically held between layers of gland packing without touching the body parts during most of its travels.
The seating itself is accomplished with a non-sliding motion aided by jams located in the body. Avoiding sliding contact between gate and body permits this valve to handle abrasive particles present in the media much better than conventional designs.
Another feature is the bevelled bottom edge of the gate (from which knife derives its name) which allows positive closure of the gate even when solid particles settles at the bottom of the body.
In handling abrasive media, deflection cones are generally used in order to avoid direct impingement of the media on the seat surface; hard facing of seat part is also sometimes used which involves stelliting of the seat or gate or complete intruding of body and gate.
Another feature is the purge connection which let in suitable fluids at pressures higher than line pressure to clean seating surfaces (body purges) and packing area (chest purges). This minimises abrasive wear and tear during opening and closure of valve.
Knife gate valves are excellent hopper isolation valves with their ability to cut through flowing powders and close by dislodging any material in the seating area. This is also perhaps the only valve design which can tolerate differential thermal expansion of its parts without affecting its functions, thus making an ideal choice for handling high temperature media.

Applications:

Knife Gate Valves are used in a variety of applications such as:

Pulp and Paper Stock Lines

On-Off & Control Applications

Slurry Lines

Thermal Power Plants, Mining, Collieries.

Sludge and Viscous Media Handling

Sewage and Waste Water Treatment, Chemical Sludges, Sticky Media Molasses.

Dry Solid and Powder Handling

Hopper Isolation valves, Pneumatic conveying systems, polymer Chips Handling, Weighing & Batching Systems, Dryers; Coal Burner Valves to NFPA-8503 specifications.

High Temperature Gas Lines

Carbon Black Plants.

Usage In Industries:

Pulp & Paper Industries
Thermal Power Plants
Sugar Mills
Textiles Industries
Sewage Plants.
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