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Vanessa Triple Offset Valves Vanessa Triple Offset Valves
Meet Your Gate Valve Repair Kit
Gate Valve Leaking Steam?

Meet Your Gate Valve Repair Kit

Vanessa triple offset valve (TOV) is the first to provide bi-directional zero leakage* performance, creating a new industry category using a technology not previously available with other quarter turn valves.
Fast, No-Hassle Valve Replacement
Fast, No-Hassle Valve Replacement
Vanessa TOVs offer plug-and-play installation with short and long face-to-face options—no piping changes needed.
 
Lower Actuation Costs
Lower Actuation Costs
Metal-to-metal, non-rubbing design means lower torque and smaller actuators. Torque-seated like gate valves, they’re easy for your team to handle.
 
Local Repair, Not Replacement
Local Repair, Not Replacement
Unlike gate valves, Vanessa TOVs are repairable. Our Suwanee, Georgia service center restores them to like-new, bubble-tight conditions.
 
Cut Fugitive Emissions
Cut Fugitive Emissions
Quarter-turn operation avoids packing wear from rising stems—ideal for reducing emissions.
 
Simplify Safety and Performance with One Solution: Available ready for immediate shipment. Contact us today!
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Features

  • Robust and fire-resistant all-metal construction
  • Stellite® grade 21 seat overlays provide excellent durability
  • Resilient metal seal ring ensures perfect seating force distribution around precision-machined seat circumference
  • Easily replaceable multi-layered duplex and graphite seal rings
  • Robust one-piece shaft designed to transfer/ maintain torque efficiently
  • Two-piece packing gland and graphite packing minimize external emission risk
  • Key secured shaft-to-disc connection for maximum shaft integrity
  • Heavy duty bearings withstand high pressure loads and wear
  • Braided graphite bearing protectors prevent dirt intrusion, ensuring constant running torque and valve operability
  • Internal and external shaft extrusion risk handling complies with international standards
  • Flange spot facing ensures bolting nut and washer planarity, increasing joint reliability and safety
  • Open/closed disc references and external disc position indicator simplify installation/removal procedures to API 609
  • Spiral wound gaskets, seal and packing rings replaceable with no special tools

Technical Data

  • Sizes: DN 80 - 3000 (NPS 3 - 120)
  • Pressure ratings:  ASME class 150 - 1500; EN PN 10 - 250
  • Temperature range:  -60°C to +450°C (-76°F to +842°F)

Standards

  • Design: API 609, EN 593; ASME B16.34, EN 12516
  • Flange: ASME B16.5/ASME B16.47; EN 1092-1; ISO 7005
  • Face to face: ISO 5752; EN 558; ASME B16.10; API 609
*Vanessa triple offset valves perform bidirectional zero leakage tightness (no visible leakage when tested first at high pressure with water and then at low pressure with air according to ‘Leakage Rate A’ of ISO 5208 and EN 12266-1 standards, and the ‘Resilient Seat Valves’ requirement of API 598) through non-rubbing 90-degree rotation and metal-to-metal torque seating.
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