Oct 27, 2012 machining a cast steel gate valve 34 bore. Removal of threaded seat rings is similar to that of gate valve. Forged valve manufacturing process flow of manufacturing process release point cutting burr removal process machining process assembly inspection recycling forging junk recycling cutting, grinding waste. The type slim 300 and slim 600 are also available in combined versions for gate and globe valves. Mar 20, 2015 check out the valve manufacturing process at armatura group, from designing of new solutions, through brass pressing and machining, to assembly and quality control. The manufacturing process of industrial valves valve company. The orbitec 20 is geared towards manufacturers of valves and similar large components. The valve guard, poppets, springs and wear shims are conventional. Forged valve manufacturing process heating forging surface treatment degrease cleaning process shipment material figure 6. Gate valves shutoff valves grainger industrial supply. Introduction to water jet machining process advantages. Figure 196a shows a womworldwide oilfield machine, inc. The main raw materials used in valve manufacturing processes, containing 1 mass percent or more of class i substances 0. More than a promise of excellent performance, they deliver the needed efficiency for allaround, problemfree flow.
Water jet machining is a mechanical energy based nontrad itional machining process used to cut and machine soft and nonmetallic materials. Tight shutoff and low emissions for the process and power industries. Your choice of slurry knife gate valve sleeves can be the difference between a productive, profitable process and a decommissioned unit. Us4443920a method of manufacturing a gate valve body. Charlotte, nc, a veteran in the field of valve repair, a critical point of valve inspection involves decisions which affect the economics of prv repair.
Api 600 and bs 18731868 specify the following valve components as the valve trim. I can use acrobat distiller or the acrobat pdfwriter but i consider your product a lot easier to use and much preferable to adobes a. The tool is remotely operated and designed to maintain center in the valve body while machining the ribs into the. Pdf machining of engine valve seats with pcbn tooling. Kitz bronzebrass valves are exclusively produced in modern factories used for valve manufacturing. Forged bronze stem and thrust collar manufacturing process bronze bar stock bar stock is cut to length integrated lift lugs the a2361 resilient wedge gate valves also feature dualpurpose lifting lugs. It involves the use of high ve locity water jet to. The term gate valve originated from the words gatan, gap, gasse and gat, and implies a. The ductile iron lugs provide stability and alignment for the valve box. Take a look at this video to see how a ball valve is manufactured. The gate valve, also known as a sluice valve, is a valve that opens by lifting a round or rectangular gatewedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straightline flow of fluid and minimum restriction is desired.
Corporation is glad to offer a broad range of kitz bronzebrass valves for commercial and industrial applications. Shell wall thickness and general valve design bolted bonnet pressure seal through conduit bsiso 10434 gate valve bs 1873 globe valve api 600 bs 1868 check valve asme b 16. Different types of valves select different materials, most are cast iron, cast. These machining systems permit to reach the top quality of the products. Introduction to water jet machining process advantages and. When the valve is fully open, gate valves are full bore. The most common type of isolating valve is the gate valve, but other types have made an advance, especially over the past 30 years. Extreme machining services designs and builds lightweight yet very sturdy gate valve drilling machines. The following valve types represent the most commonly seen valves for industrial applications around the world. From the construction of the turbo jet engine to the flight just one step duration. Assemble the discspindle assembly as before and assemble the valve and replace the old gasket. This time i got video of it machining a demonstration valve component.
Remove bolts that hold bonnet actuator assembly to body, or for quickclamp bonnet, undo the clamp. Valve manufacturing process at armatura group youtube. Modern tool concepts matched to the related manufacturing concept usage of exactly matched cutting materials for example during the machining of the valve seat special solutions for small production runs and prototypes comprehensive range of services including tool management. The raw materials is issued to the machine shop for machining through material requisition slips. Gate valves gear operated bare stem for actuation 2 piece bonnet design 4 pdf machine is a pdf writer that produces quality pdf files with ease. This means that if the part is too damaged it must be replaced. When fully open, a gate valve has no obstruction in the flow path and so has a. Manufacturing process for valves gate valves of the company are manufactured in compliance with the standards of the japan valve manufacturers association. The industrial valve manufacturing process is a complex endeavor. All valves are designed to stop, allow, or throttle the flow of a process fluid.
Introduction to water jet machining process advantages and disadvantages introduction to water jet machining. Water jet machining wjm called hydrodynamic or equipment may be used for applications similar to the laser. Gate valve machining, globe valve machining, portable. There are disclosed two embodiments of a gate valve having a forged body in which a generally rectangular cavity to receive the gate for opening and closing each flowway through the body is formed by drilling a first hole within the forging from which the body is to be made, and then drilling at least one other hole within the forging which is parallel to and overlaps a prior drilled. This design of gate valve is commonly used for clean fluids and steam applications. Ccme is a top tier job shop machine shop, providing service to valve companies who design and assemble critical fluid control valves used in a wide range of applications.
Water jet machine widely used for cutting plastic, cloth, rubber, paper and leather, because. We serve customers across the united states with production level machining and provide the quality assurance necessary on exotic and super alloys chosen to last. The wedge gate valve is one of the first choices of isolating valve, with good sealing capabilities and low fluid friction losses. Machining for all types of valves, actuators and pumps. Solutions for cost effective and highquality machining of. Perform and discuss the disassembly, inspection, repair, adjustment and reassembly of gate, globe, check, and pressure seal valves. Parallel slide gate valve provides a smooth flow path between seats. Design and manufacturing of plastic injection mould. Solutions for cost effective and highquality machining of oil and gas valve body features a valve regulates, directs or controls the flow of fluids or gases by opening, closing, or partially obstructing various passageways. Industrial valve manufacturer ball valve gate valve. The manufacturing process of industrial valves xhval.
Figure 3 shows the structure of a gate valve as an example. The valves in which the closure member, as in gate, globe,diaphragm, pinch moves in a straight line to allow, stop, or throttle the flow. Workpieces and processes in the automotive industry advantages. Classification of valvesthe following are some of the commonly used valve classifications, based onmechanical motion. The distinct feature of a gate valve is that the sealing surfaces between the gate and seats are planar, so gate valves are often used when a straightline flow of fluid and minimum restriction is desired. Valve machining and testing technology unigrind gmbh. Industrial valve types and applications the eagle group. Technology and processes for grinding safety valves. Wellsuited for manufacturers in the energy industries, this machine is said to be a costeffective valve body production center that completes more than 75 percent of valve applications.
Each type of valve has been designed to meet specific needs. Please store this manual in an easily accessible location. Therefore gate valves shall not be used for flow regulation. An inline valve gate with an integrated needle drive is a general purpose system compared to standard designs see figures 2 and 3. As well as allowing the formation of shapes which are difficult to machine, the process allows prehardened molds to be shaped so that no heat treatment is required. Gate valves one of the original valve designsare ideally suited for onoff, primarily liquid, service. The guide rib milling tool is used to repair large diameter flexible wedge gate valve guide ribs. Kitz bronze valves are built on fully automated molding and machining lines. A valve controls system or process fluid flow and pressure by performing any of the. The valve seat on the other hand is made of two pieces. Add new gland packing in the stuffing box of exact size having opened ends 180 with each other. A gate valve disc has two seating surfaces that come in contact with the valve seats to form a seal for stopping the flow. The electrical discharge machining edm or spark erosion process has become widely used in mold making.
Workpieces and processes in the automotive industry. Machining a material removal process in which a sharp cutting tool is used to mechanically cut away material so that the desired part geometry remains most common application. To improve the wearresistance of the seal rings, the surface is often hardfaced by welding and then machining the contact surface of the seal ring. Extensive manufacturing and quality assurance infrastructure. Valves guide valves are mechanical devices that controls. They instantly align the valve box up to 8 valve size and eliminate. This highly automated process achieves consistent precision in manufacturing commercial and industrial valves for water, oil, gas and steam services. The closure member of gate valves either stops or allows flow through the valve and acts somewhat like the opening or closing of a gate and is called, appropriately, the gate valve. Gnb corporation 3200 dwight road, suite 100 elk grove, california 95758 tel. The valves feature a high integrity pressureseal bodybonnet connection and are of castyoke construction. There are disclosed two embodiments of a gate valve having a forged body in which a generally rectangular cavity to receive the gate for opening and closing each flowway through the body is formed by drilling a first hole within the forging from which the body is to be made, and then drilling at least one other hole within the forging which is parallel to and overlaps a prior drilled hole therein.
Some valves are capable of throttling flow, other valve types can only stop flow, others work well in corrosive systems, and others handle high pressure. Hilton designed and fabricated a replacement using materials in the ships maintenance shop. Gate valve machining, globe valve machining, portable milling. Constructed from api 6a, nace mr0175 compliant sourgas materials powered by two airdriven motors for independent drive and feed operations pressure rated up to 15,000 psi 215m lower flange connection 48 travel. The welding process is totally automated, to obtain the best quality of chemical and mechanical characteristics. Each phase of the manufacturing process, from the selection of raw materials to casting, forging, machining, assembly and. A gate valve opens by lifting a gate out of the path of the fluid. Control valves are usually globe, ball, butterfly, or plug types and are used to regulate the flow in a line.
Check out the valve manufacturing process at armatura group, from designing of new solutions, through brass pressing and machining, to assembly and quality control. Gate valve description gate valves are primarily designed for onoff services when a straightline flow of fluid and minimum restriction is desired. Water jet machine widely used for cutting plastic, cloth, rubber. The body of lowpressure valve is often produced with the casting process and the highpressure valves mainly use the forging process. Section of gate valve body is the main part of the valve. Its yh and bnx brand products are for the domestic market while the bk brand products is to be delivered to benkan corporation for the market in japan. Gate valve machining line truning, milling and drilling. When raised, the gate clears the channel and allows flow. Always wear rubber gloves when handling the gate valve 1. A gate valve consists of a channel that can be opened or closed by moving a metal gate up and down. Leakage rates should be of the order of 10 mlhr25 mm seat bore for metaltometal seals.
Due to the construction of the nozzles, the valve gate can be handled like a conventional hot runner system. The wedge is effectively clamped between two fullbore seats and seals on both sides. A gate valve functions by lifting a rectangular or circular gate out of the path of the fluid. Increased knowledge of valve design, construction, and function which. The video is taken from the workshop of yuanda valve enterprise, who is the biggest industrial valve manufacturer in asia, they combine our machine tools as a line, you will see the entire. Featuring corrosionresistant construction with an aluminum handwheel and 316 stainless steel nonrising stem, bonnet, body, and wedge, these gate valves are ideal for refinery, chemical, and other process applications. Vent station and pump corresponding to gate valve to atmosphere. The valves are offered in parallelslide and flex wedge designs. Gate valves swing check valves gate valve wedges and disks valve flanges both for on site or in workshop use. Explain the functions of valve machining equipment.