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Vanessa Triple Offset Valves Vanessa Triple Offset Valves
A Truly Unique Steam Isolation Solution

A Truly Unique Steam Isolation Solution

Vanessa triple offset valves are designed for tight shutoff and consistent performance in demanding steam applications. Built on proven triple offset valve technology, each Vanessa valve delivers dependable bidirectional sealing in a compact quarter-turn design. That same design carries through the Vanessa Series featured below.
Triple Offset Design Advantages

Triple Offset Design Advantages

Designed for clean, non-abrasive steam and water service in demanding thermal environments, Vanessa™ TOVs utilize a  precision-machined, triple-offset conical sealing system that eliminates sliding friction at the seat and delivers zero-leakage and metal-to-metal isolation.
 

Vanessa™ Triple Offset Valves (TOVs)
for steam and water isolation are designed to displace traditional gate valves, delivering precision metal-to-metal shutoff, reduced footprint in new piping installations, and long-term reliability in extreme environments.

Each valve is engineered to the exact pressure class, temperature range, and service conditions of your application.

Vanessa Series 30,000

The Vanessa Series 30,000 is built for critical steam service where durability and performance go hand in hand. This triple eccentric butterfly valve combines advanced sealing technology with simple quarter-turn operation, making it a smart alternative to traditional steam isolation valves. 
 

Features

  • Stellite® Grade 21 metal seat
  • Exceptional high-temperature strength
  • Superior corrosion resistance
  • High resistance to thermal fatigue
  • Engineered alignment for thermal expansion

 

Featured Products

Vanessa Series 30,000 (Basic Configuration)
Emerson
Triple Offset Valves
Vanessa Series 30,000 (Basic Configuration)
Vanessa Series 30,000 (Cryogenic Configuration)
Emerson
Triple Offset Valves
Vanessa Series 30,000 (Cryogenic Configuration)

The Case for Gate Valve Replacement

Triple Offset technology delivers measurable performance advantages over traditional gate valves in steam and clean water isolation.

Benefits

  • Lower and more consistent running torque for fast, controlled stroke times
  • Reduced packing wear by eliminating extrusion and abrasion 
  • Compact design that saves space and simplifies installation
  • Capable of full-rated end-of-line service

PERFORMANCE
CRITERIA

TRADITIONAL
GATE VALVE

VANESSA™ TRIPLE
OFFSET VALVE

Sealing Mechanism

Sliding gate with packing and seat wear

Precision-machined metal-to-metal seal – No seat rubbing or wear

Leakage Control

Susceptible to packing degradation
and seat damage

Zero-leakage shutoff capability

Thermal Cycling
Performance

Prone to distortion and sealing loss

Geometry maintains seal integrity
under thermal cycling

Operation

Multi-turn, high operating torque

Quarter-turn, lower torque

Footprint & Weight

Large, heavy body

Compact, lighter-weight design

Maintenance Profile

Packing adjustment and
seat refurbishment

Seal ring is typically the only component requiring replacement

Field Serviceability

Complex disassembly

Easily field repairable

Lifecycle Cost

Higher cumulative maintenance expense

Lower total cost of ownership
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Long-Term Reliability by Design

If your facility is planning maintenance, upgrades, or expansion in steam or clean water service, now is the time to evaluate Triple Offset technology.