Unique parallel slide forged cage unit design comprises all operating parts of the slide discs. A parallel slide gate valve generally provides better shut off than a wedge gate. Velan parallel slide gate valve steam and auxiliary. This is because the gate is not torqued into the seats like a wedge gate. Flanged parallel slide gate valve, 1236 inch landee valve. Available in sizes from 2 to 24 diameter pressure seal valves are manufactured in strict accordance with the following standards. Consult factory for shut off capability with standard and optional seats. Carbon steel, alloy steel, stainless steel parallel gate valves, 1236 inch, 150lb600lb, flanged, buttwelded. Hifluidic high energy service valves key valve technologies.
Sempell dewrance high pressure parallel slide gate valve. Sempell model va500 din high pressure globe valves. For steam generators that frequently start up and shutdown this is a major issue. Actuator size of the parallel slide gate valve can be much smaller than the wedge type. Ham mer blow or impact hand wheels are not usually necessary on parallel slide gate valves.
Full bore wedge gate valves seat dimension is usually based on 90% of end bore to achieve. In 1996, key valve technologies became a member of the high energy alliance of manufacturers, consisting of hp valves b. Structure and parts parallel slide gate valves parallel slide gate valves structure and parts handwheel yoke flange yoke bar stem disc holder body disc guide bonnet seat ring stopper pressure seal gasket packing packing gland fig. Materials of construction carbon steel alloy steel stainless body a216wcb. Therefore actuator size can be much smaller for a parallel slide gate valve than for the wedge type. Standard production range for valve sizes, asme classes and designs not. F39 slide gate valve with cylinder remote operated f39 valves are equipped with a bottom protection shroud as standard. A parallel slide gate valve is much less likely to get stuck in the closed position. Valves 200mm bore and over incorporate thrust bearings to reduce torque. The forged body construction allows fluitek orsenigo valves to supply this product with dimensions and pressure classes out of standard, designed to the specific requirements of the customer temperature, pressure, size of the line without any dimensional limitation. Dewrance parallel slide gate valves, sempell, isolation.
All production occurs at our manufacturing facility in changwon, south korea using only castings and parts made in south korea. The dsi pressure seal product line offers flexwedge and parallel slide gate valves, straight and ypattern globe valves, swing, lift and tiltdisk check valves. Body made of superior strength forgings and optional cast steel. Pressure seal valves are engineered and manufactured in strict conformance to asme, ansi, astm, api and other applicable standards. 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. These reduced operating forces allow a reduction in size for. Available in variety of high quality material combinations and end connections, a prolonged life and minimal maintenance is ensured for customers. This design of gate valve is commonly used for clean fluids and steam applications.
Style b high pressure gate valve a wide range of gate valves specifically designed for high pressure and high temperature applications. The valvtechnologies parallel slide gate valve psg addresses the need for true inline valve reparability in large diameter, highenergy piping systems. Gate valves parallel slide pressure seal bonnet an example. The seats are parallel and the disc has no contact with the seats during the stroke of the valve. For example, using cookies with the websites allows you to come back to. Ham mer blow or impact hand wheels are not usually. Only at the end of the stroke the disc mechanism ensures the. Seats and doors are made of our special tda58 nickel based alloy developed for high galling resistance. Features and benefits velan bolted bonnet parallel slide gate valves are ideal for clean service and high temperature steam. Velan pressure seal parallel slide gate valves are ideal for clean service and steam. The valve is fitted with a backseating device to further protect the gland packing when fully open.
Hydraulic testing of bonettis parallel slide gate valve. Specifically designed for steam and feedwater applications, the psg provides bidirectional zeroleakage using the ram coating systems. Parallel slide gate valves inclined globe valve design available but not shown. Parallel slide valves jv060022 cast steel parallel slide gate valve parallel slide valve with spring loaded discs which automatically create a wiping action. Gate valves northeast controls emerson local business. Parallel slide gate valves carbon,alloy or stainless steel asme classes 6002500, 2 24 50600 mm flange dimensions are in accordance with asme b16. Versatile, reliable ypattern globe valve designed with ideal size and weight parameters to deliver maximum utility when new or replacement class 600, 900 and 1500 valves are required. Thermal binding cannot occur with a parallel slide gate valve. Parallel slide gate valve provides a smooth flow path between seats. Available in wedge gate and parallel slide configurations. Peter smith valves cast steel parallel slide valves. Parallel slide valves, parallel slide valves suppliers and. Hydraulic testing of a singlepiece forged steel parallel slide gate valve size 12 asme class 2500 manufactured by bonetti company.
Sempell dewrance parallel slide gate valves high pressure. Parallel slide gate valves flowone korean valve manufacturer. The compressed spring between the two closure members provides an initial seal during low pressure conditions. Parallel slide flanged gate valve dimensions, find complete details about parallel slide flanged gate valve dimensions, gate valve,flanged gate valve dimensions, parallel slide gate valve from valves supplier or manufacturertianjin bell automatic instrument technology co. Dhv parallel slide gate valves can be fitted with bypass valves when. The increasing line pressure will push the closure members with higer forces aginst each other which creates the primary seal. Parallel gate valves parallel slide gate valves for those applications when large temperature variations are expected or fast shuttoff is required, this is the most ideal design. All figure 39 slide gate valves with handwheels include a provision for a locking device. Bypass valves parallel slide gate valves can be fitted with bypass valves when specified by the customer. Peter smith parallel slide valves dupleix liquid meters. Thermal binding is associated with wedge gate valves and occurs when a wedge gate valve is closed at high temperature and is allowed to cool before attempting opening.
A wide variety of parallel slide valves options are available to you, such as stainless steel, casting, and brass. The range includes high and low pressure parallel slide gate, blowdown, globe, angle, boiler mountings fittings and special valves for critical applications. Blackhall manufacture world renowned taylorshaw parallel slide gate valves which are used in high pressure and high temperature applications. Typically, operating forces for parallel slide gate valves are lower than for wedge gate valves.
Valves for power generation industries uk valve manufacturer. This design allows complete removal from the valve when service is required. There is international acceptance that where arduous duties with high pressure hot water and steam are concerned the parallel slide isolating gate valve is superior to all forms of wedge gate valves, and to globe stop valves. Parallel slide flanged gate valve dimensions buy gate. Stronger, leakproof bolted body bonnet joint ensures joint tightness with a higher bolting torque. Flowserve uses cookies to ensure the functioning of the websites, as well as to provide better service when users return to our websites. Parallel slide gate valves pressure seal configuration both designs accordingly asme b16. A gate valve is the most common type of valve that used in any process plant.
Forged steel parallel slide gate valves, pressure seal bonnet06. It reduces the size of the operating gear and also provide a convenient. Neway parallel slide gate valves are designed with positional seal, using the line pressure as a sealing force. High pressure and temperature parallel slide gate valve. Bypass valves have a parallel slide gate design with a pressure seal bonnet, a forged body, buttweld ends, can be motor operated and are in accordance with mss sp45. Peter smith parallel slide valves back to valves division specialising in the manufacturing of small to medium size valves for the control of fluids and gases in most pipe conveying systems, the peter smith valve company offers quality products in cast iron, cast steel and gunmetal for. Compare compare sempell style a high pressure globe valve.
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