Durco G4 Full Area Plug Valves Non-Lubricated Plug Valves for Chemical Service

Durco® G4 Full Area Plug Valves Flowserve, which has supplied the highest quality plug valves for the most corrosive and difficult chemical services, is now pleased to offer the Durco G4 Full Area Sleeveline Plug Valves These valves offer greatly expanded port areas to permit greatly increased flow of process fluid. All of the proven features of the standard G4 remain with the full area model. Special Configuration Valves The G4 Full Area valve is available in a wide number of variations including designs for the following: • Firesealed • Chlorine service • HF alkylation • Weld end • 3-way configurations...

Marathon Option offers High Cycle Positive Stem Sealing 3-Year Performance Guarantee Viton O-Rings Unprecedented limited warranty. The valve will be repaired or replaced if stem seal fails within 3 years after installation. A pair of Viton O-rings prevents stem leakage while containing line pressure. They also protect the thrust collar against attack from atmospheric corrosion. PTFE back-up rings firmly lock the Viton O-rings in the stem grooves and serve as anti-extrusion devices. Unique Stem-Sealing Design The G4B Marathon valve can be used with confidence in chemical processing applications...

Automated Systems FLOWSERVE offers Automax, Norbro and Worcester Actuators and Instrumentation allowing us to supply complete automated on-off or modulating packages to meet exacting technical requirements. Durco Sleeveline valves are readily adaptable for automatic operation because the torque is relatively constant and lubrication is not required. Flowserve, a specialist in complete automation systems, produces a broad line of rack and pinion, heavy duty, electric and linear actuators. In addition, a comprehensive line of engineered special control circuits, solenoid valves, limit switches...

Applicable Valve Standards 1. Registered trademark of Avesta AB 2. Registered trademark of the International Nickel Company, Inc. This list shows several of our common materials; however, any of the wide range of Flowserve materials is available.

For values with PTFE sleeve C/F-contact factory

Testing and Pressure/Temperature Ratings G4 valves have been extensively tested to ensure the highest level of reliability possible. We believe the G4 valve is the best soft-seated valve on the market today, and will outlast and outperform all competitive valves. The unique reverse lip stem seal has been tested from -50°F (-46°C) to 450°F (232°C) maximum, and with pressures up to 720 psig (4960 kPa). Pressure-Temperature Ratings High temperature throttling tests at 450°F (232°C) with pressure drops of 175 psig (1205 kPa) have proven the superiority of G4 valves over other soft-seated valves....

Brazil Av. Tocantins 128 Sao Caetano do Sul SP 09580-130 FCD DVENBR0025-00 08/12 Printed in USA. Brazil To find your local Flowserve representative: For more information about Flowserve Corporation, visit www.flowserve.com or call USA 1 800 225 6989 Flowserve Corporation has established industry leadership in the design and manufacture of its products. When properly selected, this Flowserve product is designed to perform its intended function safely during its useful life. However, the purchaser or user of Flowserve products should be aware that Flowserve products might be used in numerous...