Transcription of Data Sheets & Bulletin: Anderson Greenwood Direct …
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Anderson Greenwood Direct SPRING OPERATED pressure relief VALVES. SERIES 60 AND 80. Premium performance Direct spring operated pressure relief valves that use special internals and soft seats to provide optimum, accurate performance FEATURES. Soft seat design provides repeatable bubble-tight performance before and after each relief cycle. Leak-tight performance near set pressure allows higher operating pressure , resulting in increased process throughput and system optimization. Easily replaceable soft seat and seals eliminate expensive, time-consuming lapping of metal components, resulting in lower long-term maintenance costs. Externally adjustable blowdown on Types 81/83 allows precise adjustment of reseat pressure without affecting set pressure adjustment. Blowdown can be adjusted with valve in service, helping eliminate the need for costly removal and/or system shut down.
6 ANDERSON GREENWOOD DIRECT SPRING OPERATED PRESSURE RELIEF VALVES SERIES 80 TYPE 81P RELIEF VALVE The Type 81P is a soft-seated, balanced valve with an internal nozzle, guide and spindle assembly
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