Triple Offset Butterfly Valves

Triple Offset Butterfly Valve (TOV) Manufacturer: FlowBiz Exports

The Triple Offset Butterfly Valve represents the pinnacle of butterfly valve technology. Unlike standard designs, the Triple Offset geometry eliminates friction between the seal and the seat throughout the entire stroke. This is achieved through three distinct offsets:

  1. Offset 1: The shaft is located behind the centerline of the sealing surface.
  2. Offset 2: The shaft is displaced from the pipe/valve centerline.
  3. Offset 3: The seat cone axis is offset from the valve centerline (creating a cam-like action).

This unique design ensures that the disc only contacts the seat at the final point of closure, resulting in zero leakage and significantly extended service life.

Technical Specifications & Compliance

Feature

Specification Details

Size Range

2 inches to 12 inches (50 mm to 300 mm)

Pressure Class

ASME Class 150 (Higher classes on request)

Leakage Class

ASME B16.104 Leakage Class VI (Bubble-tight)

Temperature

Up to 550°C (higher temperatures on request)

Flow Type

Bidirectional Flow Control

Applicable Standards:

  • Design & Manufacturing: API 609
  • Face-to-Face Dimensions: API 609 Category “B”
  • Flange Conformity: ASME / ANSI B 16.5
  • Inspection & Testing: API 598

Material of Construction (MOC)

FlowBiz utilizes high-grade cast and forged materials to ensure structural integrity at extreme temperatures:

  • Body & Disc: ASTM A216 Gr. WCB (Carbon Steel), ASTM A351 Gr. CF8 / CF8M / CF3M (Stainless Steel).
  • Seat / Seal Ring: Metal-to-Metal, SS316 + Graphite (Laminated), or SS316 + PTFE.

Key Advantages

  • Frictionless Closure: The triple-offset geometry allows the disc to "cam" into the seat. This eliminated friction prevents seat wear and allows for consistent, low-torque operation.
  • Space & Weight Savings: Triple Offset valves are significantly lighter and more compact than equivalent gate or globe valves, reducing installation costs and structural support requirements.
  • Low Fugitive Emissions: The smooth drive mechanism and high-integrity stem sealing reduce the risk of environmental leaks.
  • Bidirectional Sealing: Engineered to provide a bubble-tight seal regardless of the pressure direction.
  • Fire-Safe by Design: The metal-to-metal or graphite-laminated seating naturally provides fire-safe performance for hazardous media.

Strategic Industrial Applications

  • Oil & Gas: Refineries, offshore platforms, and hydrocarbon processing.
  • Power Generation: High-pressure steam, condensate, and cooling water systems.
  • Chemical/Petrochemical: Aggressive process media and high-temperature reactors.
  • District Heating: Efficient isolation and throttling for urban heating networks.

Contact Information

Reach out to the FlowBiz technical team for expert guidance and quick quotes:

  • Website: www.flowbizexports.com
  • Email: info@flowbizexports.com
  • Contact: +91 8879358242 / +91 9016989898
  • Location: Mumbai, India (Serving all major industrial hubs across India)

Request Your Quick Quote Today!

Upgrade your system to the highest standard of efficiency with FlowBiz Triple Offset technology. We provide Easy and Quick Quotes for domestic projects and international exports.

Contact FlowBiz Exports Pvt. Ltd. now – Your premier partner for High-Performance Triple Offset Butterfly Valves.