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VO-ll & VO-76

VO-ll & VO-76
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Copes-Vulcan has been providing control valves and desuperheaters for the power, process and nuclear industries since 1903. SPX provides a wide range of valves for the control of pressure, temperature and flow-induced noise in all types of power plants. Products include severe service and general service control valves, variable orifice desuperheaters, Raven™, trim and steamconditioning valves and nuclear control valves, as well as custom designed specialty valves. Copes-Vulcan is recognized worldwide as a leader in valves for severe and critical service applications. Our strength lies in...

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Typical product applications As more vapor flows through the desuperheater, the higher the plug is lifted, thus creating a variable orifice for the vapor flow. The energy used in lifting the plug creates a pressure drop across the seat which is quite constant regardless of the vapor flow. This pressure drop creates a relatively high velocity across the seat area, and it is at this point of low pressure constant velocity that the coolant is admitted into the vapor Power Generation Coolant enters the annulus under the dictates of a control valve responsive to a temperature controller sensing...

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Model VO-II The basic design of the pressure retaining part of the VO-II is in accordance with ANSI B16.5 (B.S.1560). Sizes The VO-II is currently available in sizes 3” (80mm) through 20” (500mm). Materials of Construction Carbon steel ASTM A216-WCB Low allow steel ASTM A217-WC6 Other castable materials available on request. Pressure Ratings VO-II desuperheaters are available in ANS pressure classes 150, 300, 600 and 900. For additional sizes, pressure classes, and configurations, refer to Model VO-76. End Connections VO-II desuperheaters are normally supplied with flanged connections to...

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Model VO-76 While virtually identical in operation and performance to the VOII, the VO-76 is offered by Copes-Vulcan as an alternate when existing piping requires a custom fit, where pressure ratings exceed class 900, or where size requirements exceed those offered in the VO-II. As “Arrangement #1,” the VO-76 housing is supplied as a cast unit with integral inlet flange and butt weld outlet. “Arrangement #2” welds a reducer to the above description. The standard reducer results in a butt weld outlet the same nominal size as the flanged inlet, but non-standard sizes are also available. As...

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A HOUSING HOUSING W/ REDUCER housing W/ REDUCER & OUTLET FLANGE HOUSING & REDUCER I.D. Flange size per ANSI B16.5 Typical Fabricated Arrangement 1 (25.4) A VO-76 typically will be one nominal size smaller than the equivalent VO-II. Both will have the same size plug and internal components. Request available pressure/ temperature ratings and dimensions. Note: All dimensions are subject to change without notice. Request certified drawings. Inch (millimeter)

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A VO-76 typically will be one nominal size smaller than the equivalent VO-II. Both will have the same size plug and internal components. Request available pressure/ temperature ratings and dimensions. Note: All dimensions are subject to change without notice. Request certified drawings.

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VO-ll & V0-76 variable orifice D esuperheater Global locations S PX F low T ech n ology Road Two, Industrial Estate 25 International Business Park United States of America Based in Charlotte, North Carolina, SPX Corporation (NYSE: SPW) is a global Fortune 500 multi-industry manufacturing leader. For more information, please visit www.spx.com S PX F low T ech n ology 5620 West Rd. McKean, PA 16426 P: (814)476-5800 F: (814)476-5854 E: cv@spx.com SPX reserves the right to incorporate our latest design and material changes without notice or obligation. Design features, materials of construction...

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