Gate Valve. A gate valve can be defined as a type of valve that used a gate or wedge type disk and the disk moves perpendicular to flow to start or stop the fluid flow in piping. Product Specifications A-2361 Series Resilient Wedge Gate Valves - 350 psi 3" - 12" (form 12933 - rev 10/17) Suggested Specifications A-2361 RWGV Thin Wall 350psi 3" - 12" (form 13813 - rev 7/19) Suggested Specifications A-2361 Large Gate Valves 14" - 54" (form 13896 - rev 9/18) Pinch valve, "beach ball valve": simple, single-part two-port check valve made from soft plastic and molded on to inflatable units such as beach balls, air mattresses, water wings; can … Full-stem travel to open or close a gate valve requires many turns of its hand wheel or an actuator. There is a gate or wedge type disk which moves perpendicular to the flow which directs the flow to stop or start. Gate valve is a sliding type of valve. A gate valve is a linear motion valve that is used to start or stop the flow of the fluid in piping. VAG KOS Gate Valve Sliding washer Gland flange Packing ring Wedge Seat ring Seat ring Bonnet bolt Drain plug Body Bonnet Stem Stem nut. 2. Knife valves – This kind of gate valves use a sharp and beveled edge wedge to allow thicker fluids to easily flow. Butterfly valve Butterfly valve and globe valve Butterfly valve and ball valve Butterfly valve and gate valve Check valve Gate valve Globe valve Ball valve Valve shaped like a Usually these valves are self-cleaning and we … 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. A. A third type of gate valve, called conduit valve, is shown in Fig. Flanged Gate Valve Dimensions Api 600 Gate Valve Dimensions Gate Valve Specification Sheet Gate Valve Weight Chart Gate Valves Dimension Chart Gate Valves Dimensions Class 150, Class 300, Class 600, Class 900 Gate Valves Dimensions In Mm Gate Valves Dimensions : 1 Inch, 2 Inch, 6 Inch, 12 Inch, 14 Inch, 18 Inch, 20 Inch, 24 Inch, 30 Inch, 42 Inch Gate valves are not quick opening or closing valves. STEM TYPES. Steel wedge gate valves are classified by wedge type: plain solid wedge, flexible solid wedge (having a groove cut around the circumference, and … The seat consists of two identical metal wear rings encapsulated in VALVE BY DESIGN. Resilient Wedge Gate Valve AWWA C-509 sizes 2” through 12” Model 2639 = full wall ductile Iron Model 2640 = full wall cast Iron. Gate valves cannot be used for throttling applications, i.e. Product features a High strength ensured by ductile cast iron. When the valve is open, the closure member is fully drawn up into the valve, leaving a complete opening for the flow stream. In gate valves, the closing member is a metal gate. It is a linear motion valve used to start or stop fluid flow. The valve can handle all types of non-pressurized air. Parallel vs wedge-shaped gate valves. The following are some of the disadvantages of gate valves that must be considered when selecting a gate valve for an application: 1. It is very frequent to see the term “OS&Y” associated with gate valves. Design Feature Gate Valve. ASTM Specifications (Specs.-Grades/Types) Part Name A216 WCB Body Seat Ring Seat Ring Surface Gate Gate Sealing Surface Stem Bonnet Gasket Bonnet Bolting Backseat Bushing Stem Packing Gland Gland Flange Grease Nipple Stem Nut Retaining Nut Handwheel Handwheel Nut Compliance to NACE MR-01-75 available on all materials A216-WCB A352-LCC Carbon Steel Gate valve should ideally be used as on-off valve… the flow rate and pressure. The gate acts like a shutter that separates the inside of a house from the outside or a door that separates two rooms. The different types of valves used in the petrochemical industry suit any of the following applications: Start/stop the flow of the fluid (hydrocarbons, oil & gas, steam, water, acids) through the pipeline (example: gate valve, ball valve, butterfly valve, knife gate valve, or plug valve… Learn about the different types of valves used in the oil and gas industry and their differences: API and ASME gate, globe, check, ball, and butterfly designs (manual or actuated, with forged and cast bodies). A gate valve may have a rising stem (in this case, the stem rises above the handwheel if the valve is opened) or a non-rising stem (the stem doesn’t move above the valve when it is opened). In any process plant, the gate valve has the most common use and are suitable for both above-ground and underground installations. In fully open conditions, the flow area is equal to the area of the pipe and hence, there is negligible pressure drop across the valve.