1511 Series - Maintenance Manual

About Dresser ConsolidatedDresser Consolidated, headquartered in Houston,Texas, has been an international leader in dependablepressure relief valves and solutions for more than100 years. A business segment of Dresser, Inc., thecompany delivers the trusted expertise to provideand service reliable flow safety systems in criticalapplications around the world. www.dresser.comAbout Dresser, Inc.Dresser, Inc. is a leader in providing highly engineeredinfrastructure products for the global energy industry.The company has leading positions in a broad portfolioof products, including valves, actuators, meters,switches, regulators, piping products, natural gasfueledengines, retail fuel dispensers and associatedretail point-of-sale systems, and air and gas handlingequipment. Leading brand names within the Dresserportfolio include Dresser Wayne ® retail fueling systems,Waukesha ® natural gas-fired engines, Masoneilan ®control valves, Consolidated ® pressure relief valves, andRoots ® blowers. It has manufacturing and customerservice facilities located strategically worldwide and asales presence in more than 100 countries.Dresser, Inc.15455 Dallas ParkwayAddison, TX 75001T. 972 361 9800F. 972 361 9903www.consolidatedvalve.com© 2009 Dresser, Inc. All rights reserved.MM_1511