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Consolidated Type 2700 Safety Valve

Consolidated Type 2700 Safety Valve
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Consolidated* Products 2700 Series Safety Valve Overview GE's Consolidated Type 2700 safety valve is designed to meet the needs of the combined cycle gas turbine (CCGT) segment. Specifications INLET SIZES 1.5” (38 mm) through 6” (152 mm) in either flanged or weld neck design INLET RATINGS OUTLET SIZES OUTLET RATINGS ORIFICE SIZES Seven sizes: 1 through Q TEMPERATURE RANGE MATERIALS Alloy and carbon steel cast body with stainless steel trim (standard) special alloys are available for specific applications BLOWDOWN BACK PRESSURE LIMIT Valve Operation In Figure 1, the upper adjusting ring (G) is positioned to attain full lift at pop and to control the pressure at which the valve will begin to close. The lower adjusting ring (O) ensures a sharp pop action at the set pressure and cushions the valve on closing. When full lift is attained (Figure 2), the lift stop (M) rests against the yoke (T) to eliminate rapid opening and closing of the valve, adding stability to the valve. When the valve discharges in an open position, steam is bled into the chamber (H) through two bleed holes (J) in the roof of the disc holder. The steam escapes to the atmosphere through the pipe discharge connection (R). Figure 2: Full Lift fact sheet

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fact sheet Features and Benefits LIFTING GEAR Adjustable position for flexibility and ease of installation. ADVANCED YOKE DESIGN Provides spring cooling and ensures stable set pressure. THRUST BEARING Promotes accurate and simple adjustment of set pressures when in service and also promotes uniform loading of the valve spring. STAINLESS STEEL SPINDLE Has spherical bearing with large contact area for low unit loading. Low spindle point improves seat tightness. PRECISION WOUND SPRING Specifically designed to eliminate eccentric loading and to provide full relieving capacity at minimum...

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fact sheet ThermodiscTM Design The Thermodisc seat was designed and developed to address the problem of safety valve leakage. The disc design uses Inconel material and has an improved spindle pocket with concentric loading of the disc. These features, when combined with a low spindle bearing point and a thin flexible seat can provide a superior safety valve that has repeatable seat tightness. Inconel Disc Material Inconel material can provide superior corrosive resistance and strength at high temperatures over a long period of time. The strength of the Inconel material prevents distortion...

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Standards and Regulation Compliance 3300 North Sam Houston Parkway East * Consolidated is a registered trademark of the General Electric Company. Other company names and product names used in this document are the registered trademarks or trademarks of their respective owners. © 2014 General Electric Company. All rights reserved.

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