Valvulas

Series 30,000
Rotary Process
Valve

Flow Control

Company Profile

Series 30,000 metal seated,

Vanessa has been successfully producing and
marketing valves worldwide for almost four decades.
After having been a subsidiary of Keystone, the company
joined Tyco International Ltd. in 1997 to operate within
one of its core business segments, Tyco Flow Control. In
2000, Vanessa becamepart of Tyco Valves & Controls
Italia S.r.l., a leading European valve manufacturing group,
which includes the Raimondi and Fasani brand names.
In 1975 Vanessa was the first company to introduce
the revolutionary metal-to-metal seating technology into
the market by offering the Series 30,000 Rotary Process
Valve, a unique quarter turn, triple offset, zero leakage
valve. This has enabled endusers to cover a huge variety
of applications in many different industries and has given
Vanessa an enviable reputation world-wide.
Today, as from its inception, Vanessa is the
international leader in the manufacture of high technology

High-cycle thrust bearing
The high-cycle thrust bearing assembly
rigidly fixes a super hardened thrust
washer to the shaft while maintaining anintermediate sliding thrust washer, to
extend an already long cycle life.

rotary process valves.
The achievements of the Vanessa valve in the
international market have allowed a constant growth of
the company. The reasons for its success can be
attributed to the use of advanced technology,
sophisticated quality control systems and above all the
exclusive design of the Series 30,000.
Vanessa iscommitted to a constant improvement of
its technology and equipment, an attitude which has
contributed to the highest levels of performance of its
products and the satisfaction of its customers.

Resilient metal seal
The flexible, resilient metal seal is located
on the disc and is secured but not locked
in position, so that the metal seal has the
freedom to flex. The seal ring is locatedwith a reference pin.

Stellite® hard-face seat

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Hardfacing ensures durability in the
broadest range of applications, including
higher temperatures and dirtier services.
Stellite® seat is standard on the complete
range of valves.

zero leakage Rotary Process Valves

Reinforced flexible graphite
bearing protectors
Bearing protectors provide the highest
level of protection tothe bearings from
dirty services while extending service life.

Two-piece packing gland
assembly with standard,
externally retained blowout-proof stem
This additional anti-blowout device is in
full compliance with the most up-to-date
standards, such as API 609. Additionally,
Vanessa packing may be flexibly
arranged into numerous configurations,
including packing and bearing flush orpacking monitoring. Fugitive emissions
are in accordance with the most stringent
EPA and TA Luft requirements.

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Design Features
Triple Offset

Resilient Metal Seal

A typical high performance butterfly valve is

The Vanessa Series 30,000 utilizes a resilient, duplex

manufactured with either a single or double offset shaft

stainless steel seal ring installed in the disc assemblyto

design. These shaft offsets are created by designing the

provide true zero leakage*.The resilience of the seal ring is

valve with the shaft located behind the centerline of the

achieved through the radial compression of the seal ring

sealing surface and slightly to one side of the pipe

as torque is applied to the valve shaft. The seal and seat

centerline. The purpose ofthese offsets is to reduce the

contact surface is “cone-in-cone,” where both cones are

rubbing and thus the wear between the seat and seal to

inclined. The angle of contact between the seal and the

approximately 20 degrees of travel.

seat allows the torque applied to the shaft to radially
compress the disc seal ring. By maintaining uniformity of

Vanessa adds a unique third...