November 20, 2008 -
Fabri-ValveŽ SV1, available in 3-24 in. dia sizes, can operate at pressures to 150 psi and temperatures to 170°F. Guillotine Gate(TM) cleanly slices through high-density slurry at angle, prevents seat from cutting/tearing, and also minimizes discharge. Suited for controlling heavy slurries, valve also incorporates plastic UHMW Polyethylene gate support liners as well as engineered polymer seats. Positive bi-directional shutoff allows zero downstream leakage.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
New Guillotine GateTM design provides longer life, lower maintenance.
Plant operators can choose a longer lasting, lower maintenance valve for controlling heavy slurries, as ITT today introduced a valve design that incorporates the unique patent-pending Guillotine GateTM. Unlike traditional knife gate valves, the Fabri-Valve SV1 push-through slurry valve, introduced here at the MINExpo show, features a gate design that slices through high density slurry at an angle. The gate slices cleanly through tough slurries and prevents the seat from cutting and tearing, while also reducing the amount of discharge from the valve.
In service at a manufacturer of phosphoric acid - a demanding application where valves must cut through heavy scaling and withstand abrasive acid washes - the SV1 demonstrated far superior durability compared to competing knife gate valves.
How it works
Three key features combine to make the SV1 more durable, with less maintenance than competitive push-through slurry valves. Along with slicing through slurries more efficiently, these features prevent seat damage, which is a common issue with many push-through slurry valves.
1. Guillotine Gate. The angled-cut guillotine gate design slices through media the way that an angled knife would cleanly slice through a tomato, rather than simply pushing through and squishing the seats as a dull, flat knife would do to a tomato.
2. Gate support liner. The slick plastic Ultra-High Molecular Weight (UHMW) Polyethylene gate support liners within the SV1 guide the gate through the entire stroke, shielding the body of the valve from direct contact with the media, while reducing downstream gate deflection and preventing the gate from cutting the seat. Seat protection is key in reducing downtime on slurry valves. Seat damage is a common issue with many push-through slurry valves, leading to a seat replacement or whole valve replacement to fix the problem.
3. Seat. The proprietary engineered polymer seats reduce friction and also increase seat life, particularly in high solid slurries. The Fabri-Valve SV1's resilient material requires no lubrication, which saves tremendously on maintenance costs. Even valves that claim to self-lubricate, as opposed to those that need to be manually lubricated, can create maintenance troubles because lubrication can trap particles, and gritty lubrication can eventually affect valve operation.
The SV1 is designed for easy installation and maintenance. The gate can be completely removed and replaced while the valve is under pressure, actuation can be changed in the field, and valves with manual operators or air cylinders have self-supporting yokes providing valve orientation flexibility.
Fabri-Valve Product Manager Grant Harlow explained that ITT designed the SV1 specifically to meet the needs of mine operators who process heavy slurries and deal with high maintenance costs and downtime concerns of their slurry valves. "Our goal with the SV1 was to make a valve that basically takes care of itself. SV1 lowers the time and money spent on maintenance, and allows mine operators to focus on production without worrying about valve failure," Harlow said. "Along with improving uptime, we also have made maintenance and replacement easy when the need arises."
Price and availability
The SV1 is available in sizes ranging from 3" through 24" diameters (DN80 - DN600). All sizes can operate at 150 psi (pounds per square inch) of working pressure, and up to 170 °F (77°C). The SV1 is designed with positive bi-directional shutoff that allows zero downstream leakage, and the shutoff performance is not affected by low pressure. Other standard features include dead end service capability, mechanical lock-out in the open or closed position, and discharge equal or less than competitors. Fabri-Valve SV1's are competitively priced, and are available from authorized ITT Fabri-Valve distributors.
To learn more or to obtain technical specifications, visit the Engineered Valves website at www.engvalves.com, and click "Fabri-ValveŽ" under Brands and then click "Literature."
Fabri-Valve Ž is a registered brand of ITT Corporation.
About ITT Corporation
ITT Corporation (www.itt.com) supplies advanced technology products and services in several growth markets. ITT is a global leader in water and fluid transport, treatment and control technology. The company plays a vital role in international security with communications and electronics products; space surveillance and intelligence systems; and advanced engineering and services. It also serves a number of growing markets-including marine, transportation and aerospace-with a wide range of motion and flow control technologies. Headquartered in White Plains, N.Y., the company generated $8.8 billion in 2007 sales. Company Information: Name: ITT Industries - A-C Pump Address: 240 Fall Street City: Seneca Falls State: NY ZIP: 13148 Country: USA Phone: 315-568-7122 FAX: 315-568-7759 http://www.acpump.com
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