for functionality prior to installation. Examine entire valve and report any . 5. The resilient seat knife gate is a bi-directional valve and will operate with the flow in either . The Push-Through design emerged, enabling knife gates to handle high percentage solid slurries in mining. In case of horizontal installation any attached actuator must be supported. CLARKSON SLURRY KNIFE GATE VALVES - KGA+ INSTALLATION AND MAINTENANCE INSTRUCTIONS Operators Retainer flanges Sleeves FIGURE 1 2 INITIAL INSPECTION 1. With a knife gate lying on its side, the gate needs supporting as the packing is pressed by the weight of the gate on the gravity side. A choice of several actuators and accessories is available. Handling Open lockout-tagout . 4. Pneumatic and hydraulic cylinders require additional support when mounted in an orientation other than vertical, and failure to do so could lead to failure of cylinder and/or valve. 12 Gate Valve. The use of a suitable gasket between the body and the pipe line flange shall be selected by the customer. Suggested methods included in this POINTS. Mfr. To actuate the valve after lock and tag condition is no longer required, completely remove the pin. CLARKSON FIGURE 952 KNIFE GATE VALVES STORAGE AND INSTALLATION CYLINDER SUPPORT METHODS FOR . Bidirectional Knife Gate Valve. A gate valve consists of a valve body, seat and disc, a spindle, gland, and a wheel for operating the valve. The valve can now be actuated when needed. This 1 g force can be an effect of traffic, wind, or earthquake, etc. The Bray Knife Gate Series 740's one-piece, cast body design offers rugged performance in applications ranging from general purpose to severe media handling. Series 752. 3.3 Installation position Wey Knife Gate Valves should be installed in one of the positions shown in Fig. The audience resoundingly replied, "Direction of flow.". 1. We recommend the use of a PTFE gasket. Eye bolts in flange through holes can be used to lift the valve body or, for 2" through 12" valves, a sling can be strapped around the top of the valve body. !This!documents!isputtogetherbasedonourexperienceandcurrentknowledge! A gate valve is generally used to completely shut off fluid flow or, in the fully open position, provide full flow in a pipeline. The sealing surfaces between the gate and seats are planar, so knife gate valves are often used when a straight-line flow of fluid and minimum restriction is needed. Handling Equipment orientation - cylinder operated gate valve 1. Knife Gate Valves are divided into the following sections: The preferred orientation for optimum protection of cylinder . CF37 Conventional Knife Gate Valve Installation, Operation, and Maintenance Manual 3. They are pressure rated to 100 or 150 psi CWP. 5. 8. End-users or owners ideally should communicate through the supply chain when a valve will be installed in the horizontal position. Bidirectional Knife Gate Valve. Eye bolts in flange through holes can be used to lift the valve body or, for 2" through 12" valves, a sling can be strapped around the top of the valve body. Disconnect the air pressure as the coupling approaches the gate and see if the coupling will fit directly onto the gate. The Bray Knife Gate Series 740's one-piece, cast body design offers rugged performance in applications ranging from general purpose to severe media handling. Part # 6800BX. The preferred orientation for optimum protection of cylinder . The body and gate shall have guide surfaces to minimize wear of the gate seats during operation of the valve, to accurately position the gate throughout the travel distance to its seat, and to ensure the alignment of the gate and stem in all orientations without gate binding or galling. Most of the times we don't think about the installation position of gate valves to install them in horizontal line with upward stem or horizontal stem or to install them in vertical line with . This can alert the manufacturer to take extra steps to confirm the horizontal operability of the valve or even have an outside facility test the valve in the horizontal position before delivery. The KGC knife gate valve is available in 2-48" (50-1200mm) sizes. Examine entire valve and report any . When installing and operating the gate valve, the following shall be observed: This Original Installation and Operation Manual OM150 Over Molded Lined Knife Gate Valve Installation, Operation, and Maintenance Manual 7 Equipment orientation - handwheel, lever, or manual gear operated gate valve Valves may be stored in the vertical or horizontal position. Equipment orientation - cylinder operated gate valve 1. 7.3 KNIFE GATE VALVE WITH BEVEL GEAR ACTUATOR: For valves with bevel gear actuators, a sling or chain can be For those actuating . 4. But for the knife gate valve, it's different. Design: This design uses a sharply edged gate to separate the "sleeves" spreading them apart. Equipment orientation - handwheel, lever, or manual gear operated gate valve Valves may be stored in the vertical or horizontal position. FNW Figure 6800 8 in. Packing gland nuts should be checked and adjusted to be a firm torque as these could loosen during transport - overtightening may increase valve operating force and shorten packing life. FNW knife gate valves may be installed in any orientation in the pipe line; however the normal method is with DeZURIK manufactures a wide variety of both cast and fabricated Knife Gate Valves which are used in isolation/on-off applications to handle a wide variety of media including liquids, paper stock, slurries, chemicals, and dry materials. The Davis Knife Gate Valve may be installed in any orientation in the pipe line, however, the normal method is with the handwheel vertical above the valve body. The FNW Knife Gate is manufactured with ANSI B 16.5 - 150# raised face flange dimensions. Part # FNW6800BX. It ensures optimal performance and minimal wear and tear of the disc, seat, actuator, and other critical parts. The FNW Knife Gate is manufactured with ANSI B 16.5 - 150# raised face flange dimensions. 7. Vertical installation aligns the stem with the disc and thereby the disc with the other internal components. KGN Cast Stainless Steel Knife Gate Valves: KGN Cast Stainless Steel Knife Gate Valves are DeZURIK's economical cast knife gate valves. Stainless Steel Bidirectional Resilient Seated Knife Gate Valve with Buna (Nitrile) Seat. However, valves installed in an orientation with the actuator below horizontal may require flushing to prevent the buildup of solids in the housing and may . 7.3 KNIFE GATE VALVE WITH BEVEL GEAR ACTUATOR: For valves with bevel gear actuators, a sling or chain can be 2-24" KGC ES or HD KNIFE GATE VALVES Description KGC knife gate valves have a stainless steel body and gate, and an all-metal or resilient-faced seat. This is a common misconception. Equipment orientation - cylinder operated gate valve 1. However, valves installed in an orientation with the actuator below horizontal may require flushing to prevent the buildup of solids in the housing and may . Series 755. Valves should not be used in applications that exceed 1 g. It is one of the simplest valve designs, and with only one moving part, the preventative maintenance schedule is simple & quick. Large manual hand wheels may sometimes be shipped loose in container. OM150 Over Molded Lined Knife Gate Valve Installation, Operation, and Maintenance Manual 7 Equipment orientation - handwheel, lever, or manual gear operated gate valve Valves may be stored in the vertical or horizontal position. X. assemblies that are in a horizontal orientation. The knife gate valve shall - preferably - be installed with the actuator situated vertically on top. There are two fundamental support areas: (1) internally within the valve body and (2) externally on . 1.2 Additional product information (such as application data, Figure 2 Wey Knife Gate Valves from size 16" up with extended or heavy actuators, that are not vertically installed, should be supported on site. 2. Knife gate valves are so-called because of their ability to cut through media-containing solids. We recommend the use of a PTFE gasket. 2. Knife gate valves are being used for providing isolation in a variety of applications, as explained earlier. Series 940. Do not attempt to open the valve as this may compromise the bubble tight seal and damage the pin. The use of a suitable gasket between the body and the pipe line flange shall be selected by the customer. The preferred orientation for optimum protection of cylinder . EACH $ FNW Figure 61B 10 in. The M81 Knife Gate Valve is now fully locked out in the closed position. 6. FNW knife gate valves may be installed in any orientation in the pipe line; however the normal method is with Ductile Iron and 316L Stainless Steel Flanged Knife Gate Valve . Thus it is used either in the fully closed or fully open positions. This manual covers the 2-24" (50-600mm) sizes. Standard with replaceable soft seat, the Bray Knife Gate Series 740 gate valve is easily automated for on/off applications. 5. Step# 3: Apply air pressure at the top of the cylinder allowing the piston rod & coupling (item 3) to move towards the gate. Created in: 1960. 3. A knife gate valve has a gate that moves up and down, and a seat on one side. Standard with replaceable soft seat, the Bray Knife Gate Series 740 gate valve is easily automated for on/off applications. OM150 Over Molded Lined Knife Gate Valve Installation, Operation, and Maintenance Manual 7 Equipment orientation - handwheel, lever, or manual gear operated gate valve Valves may be stored in the vertical or horizontal position. They are used as isolation/on-off valves in in corrosive, abrasive liquid applications. assemblies that are in a horizontal orientation. Item # 4605065. The vertical installation provides efficient and easy manual operation. Make the packing adjustments once a month. This manual covers the 2-24" (50-600mm) sizes. 2 Transportation and Storage. CLARKSON SLURRY KNIFE GATE VALVES - KGA+ INSTALLATION AND MAINTENANCE INSTRUCTIONS Operators Retainer flanges Sleeves FIGURE 1 2 INITIAL INSPECTION 1. Other positions are acceptable, however, they may result in uneven valve wear. Bidirectional Knife Gate Valve. The KGC knife gate valve is available in 2-48" (50-1200mm) sizes. WARNING 1. Each stroke has a discharge which can increase with every cycle. 6. Push-Through Gate Valve. 2.1 Handling and unpacking guidelines. Knife Gate Valves / Gate Valves. 2-24" KGC ES or HD KNIFE GATE VALVES Description KGC knife gate valves have a stainless steel body and gate, and an all-metal or resilient-faced seat. In order for the valve to seat properly and . If it does not, use the adjustable support either up or down to ensure the alignment. Valves must be installed with . 6. Avoid a different installation position whenever possible. Series 746. Series 770. -!itshouldservemainlyasaguidelinetosupervisoryandmaintenancestaff.All precautions!must!be . Lubricate the stem and stem nut every 3 months. Engineers provide solutions to these challenges with various design techniques to provide proper operation. 1.2 Additional product information (such as application data, involve a risk for the valve. Two body styles are available: the Metal Seated MSU, in sizes 2-36 . Unidirectional Knife Gate Valve. It's true, for many control valves, the arrow does indicate direction of flow. Installation notes A) All slurry knife gate valves are designed and manufactured to be installed in applications where no more than 1 g of force In excess of gravity is applied to the valve in any direction. To see availability for this product, personLog In or Get Online Access. They work by lifting a round or rectangular gate out of the path of the media. Upright installation of bigger gate valves enables . . A choice of several actuators and accessories is available.
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