The internal bore will include self-cleaning flush out corners and there will be no seat pockets or cavities in the bore for media to settle in. . A knife gate valve is provided, comprising: a unitary valve body having a flow channel extending there through, a guide segment and a stuffing box. Our Insamcor range of lugged wafer (LW) ductile iron & stainless steel bi-directional knife gate valves feature a unique moulded . Using dual transverse seals with a larger packing well ensures zero leakage to atmosphere. . A unique transverse seal, consisting of a transverse seal profile and packing compound, makes the body bubble-tight towards the atmosphere. Backed by innovative engineering, high-grade material alloys, OEM parts and a commitment to customer service, Delta Industrial provides reliable, high-performance knife gate valves. Seal location and seat design provide full bi-directional sealing and zero leakage. . Contoured body interior initiates flushing action to prevent build-up and jamming of deposits in seat area. Apparently its not just a valve but a solution. We offer designs for pressures up to 1440 psi CWP. Full port flow reduces pressure drop and turbulence, thus minimising wear. 2. The Wey Knife Gate Valve Model VL is truly a high performance knife gate valve design. Dual transverse seals Primary and secondary body seals Push Through Knife Gate Valves free discharging to atmosphere. The dual transverse seals ensure the process is contained within the pipeline with zero leakage to atmosphere, and the full round . Knife gate valve Model VM is built to high manufacturing standards and combines rugged construction with design refinements. "Their construction provides a zero leakage . Solid st. stl. different materials may be suitable for certain solids and are available in plastics ( PVC ,'P PVDF, ABS CASE STUDY Proving the Lowest Cost of Ownership Product Details, Solid stainless steel non-rising stem for excellent corrosion resistance and minimum clearance, Bidirectional shut off, 100% bubble-tight shut off, zero leakage, Transverse seal has packing to energize the seal, Enclosed body ensures no leakage to the environment, Seal retained out of the flow stream and flush with the bottom port, Alloys 316 St. Stl. Additional transverse seals help prevent emissions. Transverse Gate Seal The ange face on the tank side is dual drilled with both B16.5 and tank ange drilling. Enclosed body ensures no leakage to the environment. Delta Industrial knife gate valves can guarantee plant operators in difficult process applications, zero leakage, John Abbott, Weir Minerals Global Product Manager for Valves confirms. As the valve closes the gate remains in contact with the Transverse seal, no gate or stem packing. Solutions with a peripheral seal are best suitable at dirt-accumulating locations and with thick, slurry media, in which case the cutting properties of a straight knife gate can be utilised. The transverse seal elements 110 which provide fluid tight seals for the valve 10 may be cleaned, inspected and/or replaced if necessary while the gate valve remains in service. The Knife Gate Valve for pressure rating PN 25 a b c e g l d i m f k j h A D C B. a Repacking valve Section of transverse seal illustrating how sealing compound is insert into chamber to repack valve while valve is in service under full pressure a Double heavy duty transverse seal Type 5 410 . The top "transverse" seal is re-packable while in service under full pressure. The Knife Gate Valve for pressure rating PN 25 a b c e g l d i m f k j h A D C B. a Repacking valve Section of transverse seal illustrating how sealing compound is insert into chamber to repack valve while valve is in service under full pressure a Double heavy duty transverse seal Type 5 Discover how we incorporate an innovative, in-se. Unique top transverse seal is re-packable while in service and , under pressure. Materials Body Gate Seats** Transverse Seal Yoke Assembly Actuators Accessories Options Cast-Iron Ni-Resist 316 St. Stl. The transverse seal can be repacked at any time and under full pressure using the lateral packing screws. Whether you are looking for a Knife Gate valve for high density pulp stock, air conveyed fly ash, or an abrasive tailings line WEY Valve has the products and experience to meet your needs. The transverse seal design features pressure-supporting scrapers that clean the knife gate, protect the seal profile and thus ensure a longer service life. The figure 302 is a bidirectional knife gate valve, mainly being used on sewage and sludge. Transverse seal repackable in line under pressure, 4. Transverse seals coupled with the primary seal prevent fugitive emissions. It has rigid back-up strips (which double as scrapers) to prevent extrusion, and is energized by injectable packing. The gate is in the full open position. Severe service knife gate valves have a secondary seal to back up the primary seal. Fully guided, bevelled edge machined gate shears through obstructions in flowing media. Previous Next Application areas Features include a mechanically retained resilient seat, contoured flushing corners in the body and a transverse seal that is repackable in-line under full pressure. . Dual Transverse Seals, Multiple Body Seals Ensuring process is contained within the pipeline envelope is crucial. A special lip-seal pro le ensures for no leakage to atmosphere. An improved gate valve having a body with an inlet into the valve chamber and an outlet from the chamber, a gate in the chamber, a bonnet with an opening therethrough, secured to the body, a stem connected to operate the gate and extending through the bonnet opening, a seat in the bonnet, a shoulder on the stem, heat responsive means holding the stem out of back seating position during normal . Valve Type: Knife Gate Valve. These are uniquely designed with both ease of maintenance . The design will allow for bi-directional flow against maximum operating pressure. Pressure rating: 0 - 16 bar. The purpose of the secondary seal is to act as a scraper and to extend the life of the primary seal. A mechanically retained round cord seal creates a bubble-tight shut off on the gate edge. A unique transverse seal, consisting of a transverse seal profile and packing compound, makes the body bubble-tight towards the atmosphere. The unique Wey Knife Gate Valve Model DB serves as both a Double Block & Bleed valve and a Line Blind. In the fully open position the valve seals to atmosphere through a combination stufng box acting as the primary seal and a secondary transverse seal. DFC's purpose is to solve typical and perennial valve problems. Assembling Wey Knife Gate Valves Further products Wey Knife Gate Valve VN 2.4.00 PN 10 Actuator options Wey Knife Gate Valve VNA with handwheel . Open and closed OSHA safety lock-out as standard. The through gate design allows valve to be closed through stagnant media columns or if there are long-fiber media. The Shear-Seal Advantage Transverse gate seal To seal from external leakage, the Delta Industrialknife gate valve utilitises an in- service, repackable, transverse (gate) seal. GNK Knife Gate Valves bring a new dimension into your industry. Sealed design Mechanically-retained extruded body seal Combination transverse seal and adjustable stuffing box and gland design Gate guided through full length of the stroke Self-cleaning flush out corners prevent deposit build-up in sealing area Full bore unrestricted flow area - no . Insamcor MLB Series Knife Gate Valves Specifications. Fully guided gate eliminates gate movement during closing and prevents gate deformation. Typical DB Installation Wey Model . In the fully open position the valve is sealed to atmosphere through a combination transverse seal acting as the primary seal and an adjustable secondary stufng box seal. e Unique Wey transverse seal eliminates stuffing box. Isogate knife gate valves are known for their heavy-duty performance, even in coarse slurries, with pressure ratings from 10 to 51 bar, Weir said. Lateral seals are provided in the stuffing box and can be replaced while the valve body is connected in its . The knife gate valve will be of wafer style and semi lugged design with the bore and connecting faces soft rubber lined. The range includes mechanical pinch valves, with open or closed body, and pneumatic pinch valves with one-piece sleeve or two-piece liner. Self-flushing corners provide a reliable sealing of the gate. The transverse seal must be repackable under full line pressure in the open and closed position while the stuffing box seal must be replaceable, with the valve in the fully open position. For the same face to face, it is generally designed for pressures of up to 16 bar. Other Problems We Solve PROBLEM: Leakage to Atmosphere SOLUTION: Dual transverse seals Primary and secondary body seals Ensuring process is contained within the pipeline envelope is the target of operating sites. XI. Transverse seal eliminates stuffing box and permits repacking under full . . Performance Based Design, To seal at the edges of the gate, Elite Valve as incorporated corner seals. The seal wraps around the gate and serves to enlarge the contact area and enhance the sealing ability of the valve. That however doesn't mean they shouldn't be considered for more general applications as well. This unique design has two . Figure B-118 Knife gate valve . Combination metal and resilient seat provides bubble-tight , shut-off. KS1 valves have incorporated a "transverse" type packing gland which can be adjusted with valve in-line under pressure. Previous Next A unique transverse seal, consisting of a transverse seal profile and packing compound, makes the body bubble-tight towards the atmosphere. Diamond shaped, compressed sealing compound provides . Patent-pending gate edge seal interlocks with transverse seal and scrapers to provide a continuous seal around gate, incorporating benefits of adjustments to packing pressure while valve is in service Two-piece cast body available in quad-rated WCB/ LCB/WCC/LCC Carbon Steel, A439 D2 Ni-Resist, and CF8M Stainless Steel A special lip-seal profile ensures for no leakage to atmosphere. . Home; Business Unit . The DSS Severe Service Knife Gate Valve has a Guided Sheer Gate design with a sheering tip that can cut through solids and other media that often comes down the pipeline in these applications, ensuring tight shutoff. The transverse seal features an upper and by a pliable compound that can be added while the valve is in service. Gate guides prevent the gate from deflecting when it encounters solids. Transverse seal eliminates stuffing box and permits repacking under full pressure and . We will help you select the correct valve style for your application based on your process conditions and system needs. Robust 4-post topwork for maximum load and a wide variety of actuator types. Transverse seal eliminates stuffing box ensuring no leakage to atmosphere, Minimized chest area prevents solid build-up/jamming by tightening packing screws without system shut-down provides cost savings in maintenance. Delta Industrial knife gate valves are designed for high performance, heavy duty operation with zero leaks. These unique transverse seals are protected by compression-loaded scraper blades which clean the gate prior to seal contact. Modern knife gate valves are zero-leakage. The Penstocks are designed to DIN 19569-4, with frame to be embedded in concrete channel wall or wall mounting. through a combination transverse seal acting as the primary seal and an adjustable secondary stufng box seal. REPACKING, The transverse seal can be repacked at any time and under full pressure using the lateral packing screws. Unique Wey transverse seal eliminates stuffing box. ERHARD KnifE GATE VAlVE Overview of features Sizes DN 700 to DN 1200 Pressure rating PN 2 to PN 10, depending on DN Material Body: cast iron Valve plate: stainless steel 1.4301 Stem: stainless steel 1.4104.05 Seal . Fax : +9714 2236193; Send us a mail info@dutcotennant.com; CALL US ON +9714-2152799. Designed for high performance in the most extreme applications, our Delta Industrial range of gate valves are manufactured using a range of superior materials. Perfect for liquid, gas, steam and water applications, Elite Valve's E5 high performance perimeter seated knife gate valve will withstand the harshest of operating conditions and service environments. Self-flushing corners and a transverse seal provide a reliable . * The valve is tested and rated for zero leakage (liquid or gas) downstream and to atmosphere. The Wey Knife Gate Valve Model VS is truly a high performance knife gate valve design. Width: 13-3/5 in . The scrapers bars, inserted above and below of the transverse seal, prevent any solids which may stick to the blade from being pulled into the transverse seal area during the opening or closing operation.This can be especially critical for valves that are in the open or closed position for an extended period of time.The transverse seal and scrap. The advantage of combination sealing to atmosphere is the ability to maintain and re-pack seals under full line pressure. Transverse seal has packing to energize the seal; Enclosed body ensures no leakage to the environment; Seal retained out of the flow stream and flush with the bottom port; Full port flow reduces pressure drop and turbulence, thus minimizing wear; . This valve provides zero leakage bi-directional shut-off, has mechanically retained seals, has a compact non-rising stem design, and can be repacked in service under full pressure. A Features: The gate is mechanically guided over the full stroke. The center section houses the drain, purge or bleed connections and can be customized for each specifi c application. Transverse seal 6 . Unique Wey transverse seal eliminates stuffing box. Using dual transverse seals with larger packing . Material: Stainless steel, Ductile iron, Special material. The body seal must be fully moulded with a lip seal and must be mechanically retained in the valve body. STRUCTURE AND MATERIALS The advantage of combination sealing to atmosphere is the ability to maintain and re-pack seals under full line pressure. 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. DFC's Insamcor range of lugged wafer ductile iron & stainless steel bi-directional knife gate valves feature a unique moulded body seal without seat pockets or cavities providing trouble free operation in slurry applications.. The cushioned cylinder prevents pressure shocks and initiates flushing 4-post heavy duty solid steel topwork High strength clevis or stemnut for long lasting performance Gate surface ground on 4-sides provides long-life high performance sealing Unique transverse seal eliminates stuffing box and compensates for wear All stainless steel valve bolt. 7 FEATURES 8 9 NOMINAL SIZE RANGE In these valves, transverse upper seals of on the closing . REPACKING The transverse seal can be repacked at any time and under full pressure using the lateral packing screws. The transverse seal design features pressure-supporting scrapers that clean the knife gate, protect the seal profile and thus ensure a longer service life. Solid slide for clamping between flanges according to DIN 2501 and used as end fitting, self-adjusting COMPACT transverse seal to the atmosphere, upstream scraper for cleaning the slide plate, product-tight in both flow directions, two-part housing, metallic and flutter-free guided slide plate with segment-shaped radius, sharpened cutting edge o. Diamond shaped, compressed sealing compound provides necessary sealing pressure, compensates for wear and stands for outstanding service life performance under normal conditions. Overview: Knife gate valves. A knife gate is located in the guide segment, the stuffing box and the flow channel and is slideable between an open and closed position. Standard Body Configuration Design: ASME 150 full flange Body Materials: solid investment cast 316SS and high alloys 316 stainless steel gate . 3. Toggle navigation. Seals The transverse seal is contained within slots on both bodies and compressed by the gate. 2. The transverse seal can be repacked at any time and under full pressure using the lateral packing screws. They have an axial seated design and gate guides. Standard materials of construction range from Cast Iron to Titanium. The knife gate valve is truly a high performance knife gate valve design. Sizes from 2" (50mm) through 36" (900mm). Enter a query in the search input above and hit return to see results here. or alloy body with integral yoke. April 3, 2018 Related To: Wey Valve Inc. As the valve closes the gate remains in contact with the mechanically retained moulded body seal throughout the Capabilities/Where it works: Severe Service Knife Gate Valves are designed to handle the harshest of conditions in a variety of industries. The transverse seal can be repacked at any time and under full pressure using the lateral packing screws. This valve provides zero leakage bi-directional shut-off, has mechanically retained seals, has a compact non-rising stem design, and can be repacked in service under full pressure. . typical gate misalignment found in other styles of through-gate valves. Patent-pending gate edge seal interlocks with transverse seal and scrapers to provide a continuous seal around gate, incorporating benefits of adjustments to packing pressure while valve is in service Two-piece cast body available in quad-rated WCB/ LCB/WCC/LCC Carbon Steel, A439 D2 Ni-Resist, and CF8M Stainless Steel The Transmitter Isolation Valve is a customized 3" (80mm) series 150 guided isolation valve designed for close coupling to a tank wall operated by a ratchet handle to minimize dead space when using transmitters to measure level, pressure, pH etc. Overview The Delta Industrial Center, Block and Bleed combines two separate gates into one body, each sealed with their own seats and transverse seals and operated by a single actuator. The figure 303 is a bidirectional knife gate valve, for heavy duty applications in mining. Eliminates need to drain storage tank when , new packing is required. Knife gate valves with an EN 558/ISO 5752 20 series face to face often quickly reach their pressure limit values of 10 bar - but not our MG series. The company, a manufacturer of knife- and ported blade-gate valves, finished the order for three 1 200 mm valves for the Department of Water Affairs and Forestry to be used at the Flag Boshielo . gate arc and high performance Transverse Seal, prevent de-watering . Dutco Tennant LLC Utilities Segment Supply includes Knife Gate Valve for Waste Water Treatment type Screens and Gates. Resistant Construction Find 6 PVC Knife Gate Valves related suppliers, manufacturers, products and specifications on GlobalSpec - a trusted source of 6 PVC Knife Gate Valves information. Delta Industrial Series 30 Knife Gate Valve Product Features 10 3 The patented gate edge seal incorporates a transverse seal design inside . over the life of the valve, delivering higher cycle life at zero leakage compared to O-ring designs Patent-pending gate edge seal interlocks with transverse seal and scrapers to provide a continuous seal around gate, incorporating benefits of adjustments to packing pressure while valve is in service Two-piece cast body available in quad-rated WCB/ Knife Gate Valve (SSKGV). Our GNK Knife Gate Valve is a true bi-directional slurry knife gate valve with a self-flushing design capable of withstanding the harsh, abrasive conditions inherent in mining, milling and processing applications. Conventionally, knife gate valves are used in the case of liquids with low solids content. WEY delivers: 1. The add-on Weyotine cutter-pack can be used to cut long-fiber media, preventing jamming and blockages. KS1 valves have incorporated a "transverse" type packing gland which can be adjusted with valve in-line under pressure. Mechanically retained seal prevents shifting during valve operation. knife-like gate and body cutting edge. 3. Seal retained out of the flow stream and flush with the bottom port. With its optimized gate geometry, accumulated media is pushed out of the gate guide and flushed out into the bore by the increased flow. Emerson's Clarkson KS1 Knife Gate Valve utilizes a patented field-adjustable gate edge seal and precision-molded elastomer seat to eliminate any leakage. Weir Minerals is a global leader in the mining and oil sands markets and the acquisition of Delta Industrial Valves, Inc strengthens our comprehensive offering to customers with a range of high performance knife gate valves for heavy duty slurry application and high pressure environments.". 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