Wey by sistag your partner for high performance knife gate valves, water control gates and butterfly valves. Jun 17, 2014 the linuo knife gate is an economical, high performance knife gate valve used in pulp and paper, refining, wastewater, water treatment, mining, and chemical fiber industries. Standard knife gate valve design features 4 standard knife gate valve, tappi. Whats the difference between a knife gate and slide gate. Radii on gate edges improve packing efficiency and life. Avk 70210103 knife gate valve with nonrising stem and handwheel. Stellite is added to the gates lower edge to protect it from abrasion. Gate edge is beveled for easier packing seal and longer packing life.
Gate is polished on both sides to avoid jamming and seat damage. The creative slurry knife edge gate valve includes rubber polyurethane material to provide highly efficient operation in tough abrasive and corrosive applications. Our valve is made utilizing quality carbon steel and covered with a clean to keep the surfacefrom rust. A gate valve, also known as a sluice valve, is a valve that opens by lifting a barrier gate out of the path of the fluid. Pneumatic knife gate valve or hydraulic knife edge gate. Thicker knife gate thicker knife gate to eliminate distortion under maximum differential pressure and to provide tight seating.
We have solution to sludges, slurries, powders, problem fluids that challenge todays pulp and paper, chemical, textile and sugar mills. Unidirectional metal seated bidirectional resilient. This manual addresses handwheel operated knife gate valves only. Knifegate valve maintenance and repair valve magazine. Knife gate valves henry pratt company valve manufacturer.
Installation, operation, and maintenance manual itt engineered. Our staff has many years of combined experience in building knife gate valves in particular. Knife gate valves are used to provide isolation in various applications including oil sands slurries, pulp stock, waste water and power generation. Fnw figure 65b, stainless steel metal seated knife gate valve.
A gate valve will have a vring packing set that seals the shaft attached to the gate, while a knife gate valve has a packing gland that seals around the gate. From the most common application to the most severe, velan has a solution. Another significant difference between an ansi gate valve and a knife gate valve is in the packing gland area. Knife gate valveknife gate valve manufacturers, suppliers.
Jash entered the knife gate valve business in the year 1995 with the introduction of zft. The knife gate valve provides reliable shutoff for both dry and wet line fluids. A knife gate valve is a component that utilizes a blade to cut through clogging of heavy liquids. Available with integral metal or replaceable soft seat, the bray series 950 gate valve is easily automated for onoff applications. This valve is fabricated by making utilize premium quality. Unimac knife edge gate valves are designed for isolation, onoff and throttling services in paper and pulp industries, power plants, steel plants, cement plants, sugar industries, chemical and textile processing industries, mining, water and sewage plants to handle slurries, slag, plug, and fibrous materials, fly ash, powders, clean or corrosive gases. The brayvaas knife gate valves series provides repeatable bidirectional and unidirectional shutoff in a rugged, single piece cast body. Jun 22, 2017 a knife gate valve is a component that utilizes a blade to cut through clogging of heavy liquids. These highquality metalseated knife gate valves, with ground knife gates and lapped seating faces, have maximum leakage rate 410 times less than the. Knife edge gate valve manufacturer exporter supplier in. Knife gate valve how is knife gate valve abbreviated. Whats the difference between a knife gate and a slide gate.
As a the leading european and a prominent international knife gate valve manufacture, orbinox offers a wide range of knife gate valves for a large variety of industrial and water related applications. Pull up the packing gland to the top of the blade and secure it to the top of the. Seating materials can be metal, elastomer, or plastic. Knife edge gate valve is leading manuafactures, exporters and suppliers of knife edge gate valve in india and uae. Valve suppliers often receive quote requests for a knife gate when what a company is really looking for is a slide gate for dry bulk material handling. These valves were designed to work in some of the most corrosive, erosive and abrasive environments in the world. Leader in the manufacturing of knife gate valves, tecofi has a comprehensive range able to respond to all needs and applications. The gate faces can be parallel but are most commonly wedgeshaped in order to be able to apply pressure on the sealing surface. Knife egde gate valve the series 10 model knife gate is an unidirectional wafer valve designed for general industrial service applications. Applications outside of their conditions require special design considerations. The cr model knife gate is a heavy duty valve designed for handling difficult applications.
Mvs pneumatic knife edge gate valve body is onepiece solid, rugged and heavy duty casting including flanges. The bottom edge shall have a 45 degree beveled knife edge. Knife gate valves process systems knife gate valves are available in ductle iron and stainless steel, including semi lugged or fully lugged body with an open shroud or bonnet. Knife edge gate valves suppliers of broad extent of knife gate valveto our patrons. The bonnetless valve equipped with a heavyduty gate to cut though both dry and wet line fluids. The linuo knife gate is an economical, high performance knife gate valve used in pulp and paper, refining, wastewater, water treatment, mining, and chemical fiber industries. This valve is mainly used for viscous products as the gate has a sharp edge thanks to an external chamfer. All valves shall be model kgces cast knife gate valves as manufactured by dezurik or approved equal. Lug bolt pattern holes are tapped according to asme b16. Knife gate valves were originally designed for the pulp and paper industry. Standard knife gate valve through conduit knife gate valve. All red valve knife gate valves are designed and engineered to a higher standard, to provide the best performance possible. One of the most comprehensive valve product lines available from any manufacturer.
Pulp and paper power plants wastewater treatment plants. The design of the body and seat assures nonclogging shut off on suspended solids in industries such as. We specialize in custom knife gate valves from 2 to 96 and above, utilizing carbon steel to stainless steels and other weldable alloys. The bray series 950s single piece, cast body design offers rugged performance in applications ranging from general purpose to severe media handling in an economical semilug body. Sealing face of the gate is lapped to provide the best possible seat tightness. The thickness andor material of the gate can be changed on request for higher pressure requirements. The gate of knife edge gate valve is made from ss 304, ss 316,ss 410 and we can do the special treatment for lincrease the life span. Flowage solid cast knifeedge gate valve provides value and performance with many standard features not found in other, commodity knifeedge gate valve. Stringy pulp would get stuck between the wedge and the seat of. A knife edge gate valves is a segment that uses a sharp edge to slice through stopping up of overwhelming fluids and gristly pulverize would stall out between the hold and the place of a gate valve and counteracts stream stop. Bidirectional wafer knife gate valve unified alloys. Dezurik kgces cast knife gate valves application data 35. C67 bidirectional knife gate valve installation, operation, and maintenance manual.
Knife gate valve, two lugs type, wafer type, flangless. This knife edge gate valves were uniquely structured with a sharp edge to slice through the mash and seal. Misapplication of the valve can result in injury or property damage. We have both resilent and metal seated versions in sizes from dn 50 50 mm to dn 1200 1. As often as the two terms are intermingled, a knife gate and a slide gate are not the same. Factl procurement of knife edge gate valves knife edge gate valve for phosphoric acid handling as per specification no 062 14 gav 8, due date. It is one of the simplest valve designs, and with only one moving part, the preventative maintenance schedule is straightforward.
Series g knife gate valves can be fitted with a variety of actuators, including standard handwheel, bevel gear, pneumatic actuators, hydraulic actuators, electric actuators and chainwheel actuators. Install the chest liners with the chest liner edge catching on the packing ledge in the. The cr model is suitable for use in recycle applications, like junk or sand traps of pulpers, high consistency cleaners or as silo outlet with solid material. In addition, the knife gate valves are designed to slowly open and close to safeguard against the impacts of water hammer. Procurement of knife edge gate valves knife edge g tender. For nps 28 dn 50200 velan knife gate valves feature highprecision investment cast packing flanges for a tight contactfree fit. Valtorc knife gate valve series are a high performance solution to your industrial need. All metal seated valves meet or exceed seat test requirements of the design standards. The knife gate valve shall be supplied with all equipmentsaccessories like pneumatic cylinder, limit switches. Gate valves require very little space along the pipe axis and hardly restrict the flow of fluid when the gate is fully opened. Available in sizes 2 through 24 available in cast stainless steel, stainless steel lined. Bottom of the gate edge is machined to a bevel to cut through solids for a tighter seal in the closed position. Pratt knife gate and slide gate valves have been produced since 1995.
Red valve s knife gate valves are the perfect compliment to our broad range of slurry handling products. Abo series 200 knife gate valves are unidirectional waferlug type knife gate valves ideal for installations handling liquids. Knife gate valves 18 inches and larger provide excellent service laying either on edge or horizontally, when additional support to the gate and valve is designed to accommodate the orientation and service conditions of the valve. The shearing action of the knife gate cuts through solids and cleans the seat as it closes. Pulp and paper power plants wastewater treatment plants chemical plants. Knife edge gate valve knife gate valve slide gate valve. We handle every facet of the fabrication process from engineering to. Cutting edge knife gate valve technology for diversified applications.
The bonnetless valve sediments and is ideally suited for abrasive slurries, pulp stock, semisolids, dry ash, chips, etc. Red valves knife gate valves are the perfect compliment to our broad range of slurry handling products. Download valve catalogue, pdf drawing, ga drawing, cross sectional arrangement design drawing, 3d model drawing, valve strainer filter sight glass flow indicator operation and maintenance manual download from here free. The fabrivalve hd line of heavy duty knife gate valves are specifically designed to. Velan is a world leader in the design and production of a wide range of cast and forged steel gate, globe, check, ball, tripleoffset butterfly, knife gate, highly engineered severe service valves, and steam traps offering superior performance across all major industrial applications. Pg test of knife gate valve as 6 days over 3 visits to site2 days x 3 visits and the visit is inclusive of expenses towards travel, accommodation etc. Velan is one of the worlds leading manufacturers of industrial valves, supplying forged and. Custom fabricated and cast knife gate valves pratt industrial. Mvs knife edge gate valves are avaibale in unidirectional and bidirectional body design in foll m.
Oct 16, 2014 the gate valve is only available with metal seats. This knife gate valve is suitable for liquids that contain a maximum of 5%. Both the wedge type gate valves and the knife gate valves are primarily designed for onoff services where the valve is completely opened or completely closed. Cast iron knife gate valves 2 cast iron unidirectional and bidirectional wafer construction ansi 150, pn10 and pn16. Knife gate valves including agricultural, biogas, slurry and economy knife gate valves, designed for arduous duty, used in liquid, slurry and powder applications. We are a team of experts who can undertake any challenges and can provide consultancy for the most optimized solution. High performance knife gate valves maintenance manual bolted bonnet and bonnetless, 236 50900 mm bolted bonnet tappi metal or resilient seated bolted bonnet, electric, air or hydraulic actuated bonnetless, throughbolted. Our arra compliant knife gate valves are available in ductile iron, cast iron, carbon steel or stainless steel 304316 and are available in sizes from 2 up to 36 and beyond for custom fabrications such as extended knife gate valve stems and hand wheels. The 65b is designed to handle dense mixtures of stock and slurries with unidirectional shutoff. Flowage solid cast knife edge gate valve provides value and performance with many standard features not found in other, commodity knife edge gate valve. Other options include limit switches, solenoid valves and bonnets. At the same time, the sharp edges on the gate are rounded to prevent the seal from being cut. Flowage knife edge gate valve is one of the specific design among industrial valves and generally unidirectional design with solid cast single wafer, full lugged, two lugs and flanged type.