Page 111 - Impiantistica Novembre-Dicemvre 2015
P. 111
Speciale Valvole per l’impiantistica
PENTAIR VALVES
& CONTROLS
Triple Offset Valve Technology to
Revolutionize LNG
LNG is a key market focus for These benefits also make the Vanessa Series 30,000
Pentair Valves & Controls TOVs suitable to respond to the cycling and temperature
challenges of the gas treatment process. They are desi-
Pentair Valves & Controls is a leading manufacturer of gned to offer excellent non-rubbing rotation characteri-
valves, actuators and controls under key brands includ- stics, opening and closing freely as standard without any
ing Anderson Greenwood, Biffi, Crosby, Fasani, Key- friction between the sealing elements to withstand high
stone, Narvik-Yarway, Raimondi, Sempell, Vanessa and cycles and ensure low cost of ownership.
Westlock. The business develops solutions for the most Critically, this range of valves is produced with a welded
challenging applications in a range of industries including Stellite® grade 21 cobalt alloy overlay to harden the seat
oil and gas, power, mining, chemical, food and beverage, and minimize the impact of abrasion from surrounding
and construction. media. This key feature
LNG (Liquified Natural Gas) is a key market focus for enables the Vanessa TOV
Pentair and continues to see vast changes worldwi- to better handle cryoge-
de. With safety and cost-effectiveness key industry nic and non-cryogenic
requirements, manufacturers must ensure that critical processes within the LNG
equipment is reliable and of superior quality to meet ap- industry, while delivering
plication needs. Valves, in particular, are subject to inno- excellent tightness for
vative developments to adapt and keep pace with this dependable shut-off over
changing market. many years of service.
A further benefit of the
Double Flanged Basic TOV technology Series 30,000 is the pos-
Configuration Pentair has pioneered Triple Offset Valves (TOV) under sibility of inline trim acces-
its world-renowned Vanessa brand. The company’s ran- sibility for unpredictable
ge offers zero leakage performance (*) and is suitable for repair needs, a new trend
use across a range of cryogenic and non-cryogenic LNG in LNG. While much of
applications. the valve market respon- Double Flanged Cryogenic
The Vanessa Series 30,000 TOVs can be used for dia- ds to this need with side Configuration
meters above 6” in cryogenic processes of LNG produc- entry valves, the Vanessa
tion, such as the liquefaction stage. This is due to their buttweld top entry design has been developed to mini-
space, weight and cost-saving benefits, coupled with mize the hazards and inconvenience that come with side
their zero leakage shut-off performance due to fully metal entry options. Similarly to top entry ball valves, Vanessa
seats. Furthermore, their non-rubbing rotation capability design allows for the complete removal of the valve trim
increases operability and reliability and eliminates main- and the repair/substitution of any component. As for all
tenance requirements. Vanessa cryogenic valves, maintenance remains largely
unnecessary.
Sergio Casaroli
Global product manager – triple offset valves
Pentair Valves & Controls
www.valves.pentair.com
(*) Zero Leakage means no visible leakage when tested at high
pressure with water and low pressure with air according to exi-
sting international standards
Impiantistica Italiana - Novembre-Dicembre 2015 107
