Specialityvalve is leading Knife Gate valve manufacturer in India. Knife gate valves are built to withstand harsh environments, with a sharpened blade that can cut through thick liquids.
It's made for turning on and off and isolating structures with a lot of dissolved stable particles. Knife gate valves are in handy when dealing with slurry, abrasive, corrosive, or viscous media. The valves feature a minimal strain drop when fully open, are easy to operate, lightweight, and cost-effective.
They're particularly effective in wastewater applications where corrosion is an issue. Apart from the optimized valve layout for slurry media, having an acid-proof stainless steel knife gate valve is advantageous since it is far less prone to corrosion and so requires far less frequent maintenance or replacement.
Types of Knife Gate Valve
· Unidirectional Knife Gate Valve
· Bidirectional Knife Gate Valve
· Slurry Knife Gate Valve
Available materials: WCB, WC6, WCC, LCB, LCC, Cast iron, Ductile Iron, SS316, SS304
Size: 2" to 80"
Class: 150 to 300
Nominal Pressure: PN6 to PN40
Operation: Handwheel Operated, Electric Actuated and Pneumatic Actuated, Gear operated
Ends: Wafer, Lug, Flanged
Advantages of Knife Valve
· They are cost effective,
· Easy to actuate, and
· light.
Industries that use knife valve
· Mining
· Power plants.
· Paper,
· Chemical
Visit - https://www.specialityvalve.com/product-category/knife-gate-valve/
Specialityvalve is the best Gate Valve Manufacturer in India. These products are used in a variety of industries including chemical, petrochemical, energy, pulp, paper, and oil and gas processing. Various valves are available. Gate valves are usually manufactured in India.
Applications of Gate Valve:
· Chemical Industry
· Oil & Gas
· Water & Waste Water treatment plants industry
· Petrochemicals Industry
How does a Gate Valve work?
It is basically operated by a hand wheel, a valve T-Key, or an actuator. The wheel attached transfers rotational energy to it. The rotational of the hand wheel turns the threads of the gate stem into the gate and vice versa for closing. An extension spindle is installed for underground gate valves to conduct operations without direct access to the valve.
Types of Gate Valves:
• Bellow Seal Gate Valve
• Cryogenic Gate Valve
• Forged Gate Valve
Advantages of Gate Valve:
· Provides excellent pressure drop with fewer operations
• Can be used in both directions
• Suitable for high pressure and high temperature
• Low maintenance
Available Materials: Carbon Steel A216 WCB/A105,WCC, Low Carbon, Steel LCB,LCC, Alloy St A217 WC6,WC9,C5, C12, Stainless Steel A351 CF8, CF8M, CF3, CF3M, CF8C, Duplex Steel A890 GR.4A GR.5A, etc.
Class: 150LB-1500LB
Nominal Pressure: PN10-PN450
Size: 1/2” – 64”
Operations: Gear operated, Hand wheel, Electric and Pneumatic actuated
Ends: Flanged, Butt-welding, socket weld, threaded.
Specialityvalve is the largest Non-Rising Stem Gate Valve manufacturer in India. Non Rising Stem Gate Valve is a type of gate valve with a non-rising stem. A Rotating Stem Gate Valve or Blind Stem Wedge Gate Valve is another name for a Non Rising Stem Gate Valve. When the gate is opened and closed, the stem of this sort of valve does not move up and down. Because the stem is not visible, we can't tell if the gate is open or closed by looking at the valve. These valves are similar to the Rising Stem Gate Valve in that they can be used in the same applications. They take up relatively little area in the system and are suitable for both high pressure and high temperature applications.
Advantages of Non-Rising stem gate valve:
• Takes up less room in the system
• Can withstand high temperatures and pressures
• Is simple to maintain
Non-Rising Stem Gate Valve is use in many industries like:
· Oil and gas industry
· Marine Industry
· Automotive Industry
· Manufacturing Industry
Types of Non-Rising Stem Gate Valve:
· NRS Cast Iron Gate Valve
· NRS Carbon Steel Gate Valve
· NRS Ductile Iron Gate Valve
What makes a rising stem gate valve different from a non-rising stem gate valve?
The rising stem gate valve can be identified by its look, which indicates whether the valve is closed or open. While the lead screw is visible, the non-rising stem gate valve is not.
The ascension screw of a rising stem flanged gate valve is exposed from the outside, the nut clinging to the hand wheel is stationary (not rotating axial movement), and the screw and gate rotate only in a relative motion without axial displacement of the disc and stem up and down. The non-rising stem flange gate valve's lifting screw revolves rather than moving up and down.
Available Materials: Cast Iron, Ductile Iron, Casting steel (WCB, WC6, LCB, WCC, LCC, WC9)
Size: 1/2" TO 48”
Class: PN10 to PN450
Nominal Pressure: 150 to 2500
Operations: Hand wheel, Gear operated, Electric Actuated, Pneumatic Actuated
Ends: Butt-weld, Flanged, socket weld, Threaded
Specialityvalve is best Rising stem Gate valve manufacturer in India. Rising Stem is the type of gate Valve. The threads on rising stem gate valves are located on the outside of the valve body. When we open the valve stem of valve rises.
Non-rising stem valves are typically made of brass, bronze, or cast iron, whereas Rising Stem valves are made of cast or forged steel. Rising stem gate valves are used in high pressure applications up to category 2500 or 420 bar.
It allows us to see how far the valve is open. Because of the amount of visible stem, it is simple to determine whether a rising stem gate valve is open or closed. The valve is closed when the handle is flush with the pipe. The valve is open if there is a lot of stem exposed.
Available Materials: Cast iron, Cast steel (WCB, WC6, LCB, WCC, LCC, WC9), Ductile iron, SS304, SS316
Class: PN10 to PN 450 ANSI 150 to 2500
Size: 1/2’’to 64’’
Ends: Socket weld, Butt weld, Flanged, Threaded
Operations: Handwheel Operated, Gear Operated, Electric Actuated, Pneumatic Actuated
Advantages of Rising Stem Gate valve
· It's simple to open and close.
· Small fluid resistance, medium erosion and erosion seal the surface.
· There is no restriction in the medium flow, no turbulence, and no pressure reduction.
Industry that use Rising Stem Gate Valve
· Paper Industry
· Chemical Industry
· Mining Industry
. Power Industry
https://www.specialityvalve.com/product-category/knife-gate-valve/
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