Triple offset technology for lower pressures.

Transcription

1 Triple offset technology for lower pressures. Vanessa Series 30-RS Triple Offset Valves A triple offset valve designed for the specific needs of general applications in lower pressure classes. Emerson.com/FinalControl 017 Emerson. All rights reserved.

2 EMERSON A GLOBAL NETWORK OF INTERNATIONAL BRANDS Emerson is the name behind the world s most comprehensive range of valves, actuators and associated flow control products. Supplying a host of leading global brands, we work closely with the oil & gas, power generation, mining, chemical, food & beverage and marine industries, to anticipate their needs and exceed their expectations. The Vanessa triple offset valve was the first to provide bidirectional zero leakage* performance, creating a new industry category using a technology not previously available with other standard quarter turn valves. There are now over 300,000 Vanessa valves operating around the world. A strong commitment to maintaining and improving the quality of both product performance and customer service is inherent within our management policy. * Zero leakage means no visible leakage when tested at high pressure with water and low pressure with air according to existing international standards VANESSA

3 THE NEW VANESSA SERIES 30-RS FOR INCREASED SAFETY IN GENERAL APPLICATIONS THE SERIES 30-RS DELIVERS BIDIRECTIONAL ZERO LEAKAGE IN GENERAL APPLICATIONS, WITH HIGH DURABILITY AND MINIMUM MAINTENANCE REQUIREMENTS. Available in carbon or stainless steel with a double flanged body, Series 30-RS features the same triple offset design principle used by the Vanessa Series 30,000. However, this new isolation valve addresses the specific needs of general applications in lower pressure classes (Class 10 and 300) and sizes (from NPS 3 to NPS 4 - DN 80 to DN 600). The triple offset design completely eliminates any rubbing action of the sealing elements during the 90 degree rotation, making Series 30-RS extremely easy to operate - the low torque requirement significantly reduces the effort to manually open/ close the valve. At the same time, a safer bolted-on seat allows for true positive isolation when pressure is applied from the shaft side, minimizing the risk of dangerous mechanical failures compared to other bolted seat designs. This design allows the Series 30-RS to achieve zero leakage tightness with improved safety compared to other bolted-on seat triple offset valves (TOVs), providing a competitive solution for premium performance. ENGINEERED FOR VERSATILITY The metal-to-metal torque seating ensures controlled torque over a wider range of fluids and higher temperatures compared to softseated high performance butterfly valves (HPBVs). In addition the rotary design of the Series 30-RS translates into lower footprint & weight, reduced fugitive emissions and longer valve life. The all-metal construction ensures inherent fire-resistance making this valve an extremely versatile solution for general applications typically handled by TOVs and HPBVs, but also by gate, ball and plug valves. TECHNICAL SPECIFICATION MATERIALS A16 WCB; A31 CF8M SIZES DN 80 to DN 600 (NPS 3 to NPS 4) CONNECTIONS Double flanged PRESSURE CLASS ASME 10 and 300, EN PN TEMPERATURE RANGE -9 to 30 C (-0 to 66 F) TRIPLE OFFSET VALVES 3

4 TRIPLE OFFSET THE CONCEPT OFFSET The Vanessa valve cone-to-cone sealing mechanism is achieved by quarter turn rotary motion and based on three offsets which eliminate any rubbing throughout the 90 rotation: OFFSET 1 OFFSET 1 The shaft is placed behind the plane of the sealing surface to provide a continuous seat path. OFFSET The shaft is placed to one side of the pipe/valve centerline to allow the displacement of the seal from the seat during the 90 opening. OFFSET 3 The seat and seal cone centerlines are inclined in respect to the pipe/valve centerline. This third offset completely eliminates rubbing. OFFSET 3 SERIES 30-RS SEALING As for all Vanessa triple offset valves, seal rings are easily interchangeable thanks to their self-centering ability and the presence of reference pins that simplify assembly. The use of graphite ensures tightness between seal ring layers and an ideal level of flexibility allowing each metal layer to independently find the optimal seating position. Series 30-RS valves feature a bolted-on seat providing a cost-effective solution for premium performance thanks to a more streamlined and modular manufacturing process. Used on recommended applications, the seat does not require maintenance and is not part of the standard spare part kit. Sealing between seat and body is ensured by a fire-resistant pre-compressed graphite gasket KEY 1&6 Bolts &7 Washers 3 Step 4 Seat gasket Seat 8 Disc retainer 9 Seal ring 10 Spiral wound Gasket 11 Disc & Reference Pin 4 VANESSA

5 SERIES 30-RS A SAFER BOLTED-ON SEAT FOR TRUE POSITIVE ISOLATION Series 30-RS has been designed to handle positive isolation through a safer and more robust seat compared to other bolted-on seat designs. Series 30-RS seats are installed upstream of the preferred sealing direction and are positively retained through a step integral to the body in order to eliminate the risk of: Seat bolting failure - bolts do not retain pressure or withstand most of the torque-generated load Leakage between the seat and gasket - the seat is pushed on its gasket by pressure and torque The seat material is a hard faced stainless steel, designed to ensure consistent thermal expansion. The newly designed bolted seat does not affect the downstream flange Raised Face (RF) area, ensuring the highest integrity of the flange joints KEY 1 Raised face Step 3 Resulting force 4 Unbalanced pressure (torque) Preferred sealing direction when positive isolation is required 4 3 FEATURES 1 The one-piece shaft ensures high pressure containment safety/ maximum torque seating integrity. 1 The Series 30-RS is designed to handle the risk of shaft extrusion both internally and externally in total compliance with API External emissions are minimized with safer packing Robust bearings and thrust bearings are designed to withstand high pressure and minimize galling. Open/close indicators & flange hole spot facing facilitate quick installation and maximize piping joint integrity. 6 The Series 30-RS does not feature pins that would reduce the shaft resistant section. 4 6 TRIPLE OFFSET VALVES

6 SERIES 30-RS FOR A WIDE RANGE OF APPLICATIONS Available for pressures up to 0 bar (70 psi), Series 30-RS valves handle the isolation of fluids ranging from clean hydrocarbons to gases, from mild corrosive chemicals to steam and water to ethanol at temperatures from -9 C (-0 F) to +30 C (66 F). INDUSTRY PLANT HYDROCARBONS Storage tank farms Airport tankage Crude oil, naptha, diesel, jet fuel, kerosene, gasoline OIL & GAS Import/export terminal Crude oil, naptha, diesel, jet fuel, kerosene, gasoline Non-critical chemical storage Our engineering expertise, state-ofthe-art technology and manufacturing capabilities ensure we provide the most reliable triple offset valves across a wide range of applications for our customers worldwide. UTILITIES CHEMICALS Water, wastewater, air, steam, nitrogen thermal oil Non-corrosive, non-polymerizing / crystalizing, nonerosive chemicals TRIPLE OFFSET VALVES FOR OTHER SERVICE CONDITIONS AND CRITICAL APPLICATIONS For other valve functionalities and service conditions across a wider range of sizes and pressure classes including Stellite 1 overlay seats or other material specifications and customized solutions, refer to Vanessa Series 30,000 basic, cryogenic or high temperature literature or visit: vanessaemerson.com/finalcontrol INDUSTRY PLANT UTILITIES OTHER FLUIDS Refineries, chemical & petrochemical plants Water, wastewater, air, steam, nitrogen, thermal oil Sweet gas (noncorrosive gases) HVAC PROCESS Water, steam, air Sugar, ethanol, pulp and paper plants Water, wastewater, air, steam Ethanol, black liquor 6 VANESSA

7 WORLDWIDE CUSTOMER SUPPORT Our goal is to ensure that our customers receive services matching the same outstanding level of quality we deliver through our products. Emerson has a truly global presence through a network of sales offices, service centers, valve automation centers and local inventory. This is extended to training and service operations in all the major industrial markets, allowing us to support our customers throughout a valve s lifecycle. TRIPLE OFFSET VALVES 7

8 A triple offset valve designed specifically for general applications in lower pressure classes. Emerson Electric Co. Global Headquarters 8000 West Florissant Avenue St. Louis, Missouri, T ContactUs@Emerson.com Emerson.com/FinalControl Emerson.com Facebook.com/EmersonAutomationSolutions LinkedIn.com/company/Emerson-Automation-Solutions Twitter.com/EMR-Automation 017 Emerson Electric Co. All rights reserved. Final Control North America Marshalltown 301 South 1st Avenue Marshalltown, Iowa, 018 T McKinney 300 Emerson Way McKinney, Texas, 7070 T Houston 1900 Northwest Freeway Houston, Texas, 7706 T Stafford 390 Greenbriar Drive Stafford, Texas, T Emerson Automation Solutions World Area Headquarters Asia Pacific 1 Pandan Crescent Singapore T Europe Neuhofstrasse 19a P.O. Box 1046 CH 6340 Baar, Switzerland T Latin America 1300 Concord Terrace Suite 400 Sunrise, Florida 3333, T Middle East & Africa Emerson FZE P.O. Box 17033, Jebel Ali Free Zone - South, Dubai, United Arab Emirates T Vanessa is a mark owned by one of the companies in the Emerson Automation Solutions business unit of Emerson Electric Co. The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are property of their respective owners. The contents of this publication are presented for information purposes only, and while effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and conditions, which are available on request. We reserve the right to modify or improve the designs or specifications of our products at any time without notice. Responsibility for proper selection, use and maintenance of any product or service remains solely with the purchaser and end user. VCPBR EN 17/07