A knife gate valve is a component that utilizes a blade to cut through clogging of heavy liquids; whereas a slide gate valve is a component utilizing a slide plate in order to better manipulate or control the flow of dry bulk material.
The Knife Gate Valve provides reliable shut-off for both dry and wet line fluids. The bonnet-less valve equipped with a heavy-duty gate to cut though both dry and wet line fluids.
The valves find application in paper and pulp, minerals and metals, steel plants, thermal power plants and chemical/ petrochemical industries.
The versatile metallic and resilient seats for bidirectional and unidirectional applications. The versatile metallic and resilient seats for bidirectional range is available in wafer, lugged and flanged configurations.
Carbon Steel Knife Gate Valve
Knife gate valves provide a lower valve pressure drop and are better suited for handling slurries, solids, and other fluid/solids mixtures than ordinary plug, butterfly, or ball valves. Supcon manufactures knife gate valves for pulp and paper, chemical, petrochemical, power, mining, wastewater and other applications.
Benefits
Valve field maintenance
External access to gland packing allows replacement of the packing ring without removing the valve from the pipeline.
Long service life
The bottom edge of the blade is curved for high cutting power. Precision grinding and hard chrome plating, smooth blade surface, increased wear resistance, long service life
Self-adjusting flexible valve seat supported by O-ring, high wear resistance and long service life.
Reliable sealing
Grommets can be adjusted to restore sealing during maintenance work
Easy to actuate
The stem nut is supported by needle roller bearings, which reduces actuation torque and is easy to actuate.
Name: bidirectional knife gate valve
Model: quz73x-10q
Nominal diameter: dn40-dn1000
Nominal pressure: 0.6mpa-1.6mpa
Material of body: gg20, gg25, ggg40, ggg45
Material of wedge disc: 2cr13, 304, 316, 316l etc.
Type of operation: bevel gear, pneumatic actuator, electric
Actuator.
Accessories: solenoid valve, limit switch, series filter regulator
Made of standard: gb, ansi, jis, iso, din, bs etc.
Name: knife gate valve
Model: qbz73x-10c
Nominal diameter: dn50-dn2000
Suitable pressure: 1.0mpa-1.6mpa
Material of body: wcb, 304, 316, 316l etc.
Material of disc: 2cr13, 304, 316, 316l etc.
Type of operation: bevel gear, pneumatic actuator, electric
Actuator.
Accessories: solenoid valve, limit switch, series filter regulator
Made of standard: gb, ansi, jis, iso, din, bs etc.
Name: bidirectional knife gate valve
Model: quz73x-10q
Nominal diameter: dn40-dn1000
Nominal pressure: 0.6mpa-1.6mpa
Material of body: gg20, gg25, ggg40, ggg45
Material of wedge disc: 2cr13, 304, 316, 316l etc.
Type of operation: bevel gear, pneumatic actuator, electric
Actuator.
Accessories: solenoid valve, limit switch, series filter regulator
Made of standard: gb, ansi, jis, iso, din, bs etc.
Hyunwoo knife gate valves are designed to handle the process industries ash, pulp&paper, power/utility, oil and gas production, chemical refining.
Hw knife gate valves have a lug face to face & raised face to face body design.
Available seats are metal & resilient seat especially epdm, poly-amide, teflon, silicone, etc.
Design feature also include a raised face seat with the groove that prevents clogging.(as the valve is open the flow cleans the groove)
Hw kgv is offered a variety of actuator including handwheel, chain, gear, electric, air or hydraulic actuation.
Specialityvalve is one of the top notch Pneumatic Knife Gate Valve Manufacturer in India. The Pneumatic Knife Gate Valve has a blade to cut through the clogging of heavy liquids. The valve is used in a lots of processing plants and it comes in larger sizes which makes them easier to handle. The Pneumatic Knife Gate valves are mostly used to shut off fluid flow in a fully open position, provide full flow. It is used in industries which deals with fluids. This pneumatic knife gate valve is operated automatically, using an actuator.
Pneumatic Knife Gate Valve are used in industries such as:
Chemical industry
Refineries
Mining and Mineral process Power Plant
Cement Industry
Description:-
Materials: Cast Iron , Ductile Iron, CF8M, CF8, SS316, SS304 CF3M, WCB.
Ends: Wafer, Lug, Flanged
Size: 2 to 80
Class: 150 to 600
Pressure: PN 100 PN 450
Operations: Pneumatic Actuated
Configuration for pneumatic actuators:
Pneumatic single acting actuators
Pneumatic double acting actuators
Pneumatic rotary actuators
Pneumatic Scotch and Yoke actuators
Pressure: 25 bar
Temperature:
Standard -4F to 200F (-20C to 93C)
Low -40F to 176 F (-40C to 80C)
High 0F to 300�°F (-18C to 149C)
Looking for the best Pneumatic Knife Gate Valve?
Specialityvalve is the best Pneumatic Knife Gate Valve Manufacturer in India. Here we supply valves to our clients globally. We provide customized valves of the best quality and it is cost-effective. Our company main aim is quality, safety, and reliability of our products. Our valves are manufactured using best quality materials in our advanced manufacturing unit.
Design Feature:
Titanium knife gate valve is designed specifically for reliable in difficult services in pulp and paper mill, petrochemical industries, mining ect. application. This type valve is with optional seats and can be specially designed with electric, pneumatic actuation based on the local control, which facilitates automatically operation.
1. Designed with wafer type structure, shorter face to face dimension, small volume,light weight. It is convenient for installation, carriage, storage and piping layout. Its cost-effective valve.
2. Packing seal use Japan DAKIN PTFE..
3. The knife shape gate can easily cut off materials, fibers and sundries, preventing clogging and easy for closure and open.
4. Replaceable seat make sure easy for repairing.
5. Designed with straight type, small flow resistivity and more safe application.
6. Handwheel with anti-corrosive plastic coating, which obtains good look and convenient for handle
7. The complete round port area provides maximum flow capacity and minimum head loss.
8. Operation: Hand wheel, Gear, Pneumatic, Hydraulic, Electric actuator
Ceramic Knife Gate Valve
FREE-Valves Ceramic Knife Gate Valves are known as slurry gate valves. Its have simple structure and can cut off medium which contains solid particles and fibers, but for some very hard particles or serious erosive mediums, general metal seated knife gate valves will be washed out easily, so ceramic knife gate valves are very suitable for those mediums containing fibers and hard solid particles.
Features:
1) Short length of structuresaving matrial lightweight easy to installsmall space occupation.
2) Seat is designed with single seat type to prevent sticking and accumulation of ash residue.
3) The sealing surface is made of structure ceramic with abrasion resistance and long service life.
2) Pressure Range: Class 150 /PN6/PN10
3) Applicable Temperature.: 0200
4) Connection T ype: Fl
ange , wafer
5) Sealing material: engineering ceramics
6) Body Material: WCB, CF8, CF8M, CF3M
7) Pressure test:GB/T13927, API598
8) Face to Face: GB/T12221, API609
9) Valve body : GB/T12224,ASME B16.34
Operating Mode:Manual/Electric/Pneumatic
Application:
FREE-Valve's Ceramic Knife Gate Valves are suitable for the conveying system with liquid-solid or gas -solid two-phrase medium , such as ash, mine residue and coal residue in iron and steel plant or ash conveying system of power plant , paper pulp in paper industry, sewage and slurry in decontamination plant ,especially useful for the heavy medium system of coal mill.
Gate Valves or Knife Gate Valves find applications in Chemical Industries, Electrostatic Precipitators, Vacuum Retorts, Hydrocarbon Refining, and Cooling Water to Turbines, Flash Tank Discharge, Liquor Heating, Grinding etc.
Gate Valves Technical Specification:
Gate Valves or Knife Gate valves are made of different types of construction materials like Stainless Steel Gate Valves, Alloy Steel Gate Valves, Aluminium Knife Gate Valves, Brass Knife Gate Valves and Bronze Knife Gate Valves. Performance will always depend on the size and material of the valves. Gate valves may have different types of bonnets like screw-in, union, or bolted bonnet. These bonnets provide anti-leakage closure to the valve body. These are mostly used in case of high pressure services, typically in excess of 2250 psi.
We, at Hitesh Metal, make sure to provide the best material according to the client's specifications. Our company is well equipped with all kinds of resources for successfully meeting the demand of its products. Contact us today to get the best value price for gate valves or knife gate valves.
ANSI/ASME B16.10 Gate Valve / Knife Gate Valve Specifications:
Type Bolted Bonnet O. S. & Y Type Rising Stem
Size 50mm to 600 mm
Pressure Rating 150, 300, 600, 900, 1500
Design & Mfg. Standard API 600 / BS 1414
Inspection & Testing Standard API 598
Body Material WCB, Cast Iron, CF8, CF8M, Alloy 20
Trim Materials 13% Cr. Stellited, AISI 304/316/Monel
End Connection Flanged, Butt Welded as per ANSI B 16.5 / B 16.25
Face to Face Dimension ANSI B 16.10
FREE-Valves Bi directional knife gate valves are known as slurry gate valves. Its are bidirectional valve deals with flow in both directions, while offering zero leakage. The U shape peripheral seat design ensures full-port flow and non-clogging shutoff.The disc bottom of knife gate valve is made into a blade shape with the purpose to cut some soft materials such as fiber,pulp or wood pulp, and it also serves favorable closing and opening.
Features:
1) Knife gate valve is Bi directional,zero leakage,withstanding high differential pressure and full bore valve with minimal seat cavity for maximum flow capacity.
2) No groove is designed on the valve seat,which prevents accumulating media on the sealing surface, and thus avoids sealing surface leakage or disc blockage cause by media accumulation.
3) The integrated body structure with precision casing.
4) U shaped resilient seat is embed into the body and is well connected with the gate,and the friction is reduced during the upward and downward movements of the gate.This greatly prolongs the using life of the seat and realized bi directional sealing.
5) Replaceable flexible wire reinforced elastomer seat ensures bi-directional zero leakage shutoff.
6) Full port flow path with minimal pressure drop achieved through full port valve design.
Technical Specification:
1)Size Range: NPS2~NPS48,DN50~DN1200
2)Pressure Range: Class 150 /PN6 /PN10
3) Applicable Temperature.: 0~200
4) Connection Type: wafer
5) Sealing material: Rubber,PTFE
6) Body Material: Ductile Iron
7) Disc material:Stainless steel
8) Pressure test:GB/T13927, API598
9) Face to Face: GB/T12221, API609
10) Valve body : GB/T12224,ASME B16.34
Operating Mode: Hand wheel,Bevel Gear,Pneumatic,Electric,Hydraulic
Application:
1. Mining, coal washing, iron and steel industry used for washing coal pipes, filter slurry pipes, discharging ash pipes, etc.
2. Purification system used for waste water, mud, sewage and water with suspended solids.
3. Paper industry used for any mixture of pulp, material and water of any concentration.
PZ Series Knife Gate Valve
This series knife gate valve is a kind of gate valve, it is straight stroke cut off valve, the knife gate valve gate head has oblique cutting edge, has certain cutting effect to the medium, can be equipped with manual, pneumatic, electric actuator, widely used in papermaking, mining, chemical, sewage treatment and other process automatic control system.
The knife gate valve is truly a high performance knife gate valve design. This valve provides zero leakage
Bi-directional shut-off, has mechanically retained seal, has a compact non-rising stem design, and can be
Repacked in service under full pressure. The chest and seating areas of the valve are self-cleaning. The
Reduced chest area, minimal gate arc, and contoured flushing corners in the body prevent jamming by
Eliminating material build-up in the chest, body and seating area. The gate seals against a combination
Metal and resilient seat and is guided for the full stroke length of the valve. The top “transverse” seal is repackable while in service under full pressure. The valve is tested and rated for zero leakage (liquid or
Gas) downstream and to atmosphere.
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