Triple Offset Butterfly Valves

Frigate’s high-performance Triple Offset Butterfly Valves deliver engineered zero-leakage isolation for critical industrial systems operating under extreme pressures and temperatures. Designed with a non-rubbing, torque-seated mechanism, these premium valves minimize friction to ensure an extended cycle life and low cost of ownership.

Design Standard

API 609 / ASME B16.34

Nominal Size Range

3″ to 48″ (DN80 to DN1200)

Pressure Class Ratings

ASME Class 150, Class 300, Class 600

Face-to-Face Dimensions

API 609 Category B / ASME B16.10 / ISO 5752

End Connection Styles

Wafer, Lug, Double Flanged (Short & Long Pattern)

Order Type

Quantity Range

Lead Time*

Standard Config Product

1 – 10 Units

4 – 6 Weeks

Standard Config Product

11 – 50 Units

8 – 10 Weeks

Custom Material / Actuated Assembly

1 – 10 Units

10 – 12 Weeks

Bulk Project Order

50+ Units

14 – 16 Weeks

*Please note that these timeframes are indicative ranges only. Actual delivery schedules depend on final design specifications, casting availability, and current production capacity.

Product Description

Frigate’s Triple Offset Butterfly Valve utilizes a cutting-edge tri-eccentric geometry that eliminates seat wear by ensuring the disc makes contact with the seal only at the final point of closure. This precision-engineered design provides robust, bi-directional tight shut-off, making it an ideal alternative to bulky gate or ball valves in space-critical applications.

Testing & Inspection Standard

API 598 / ISO 5208

Operating Temperature Range

-196°C to +550°C (Cryogenic to High-Temp)

Leakage Class

Zero Leakage / API 598 Bubble-Tight / ISO 5208 Rate A

Fire Safety Certifications

API 607 / ISO 10497

Fugitive Emissions Compliance

ISO 15848-1 Class BH / TA-Luft / API 641

Body Material Options

Carbon Steel (WCB/WCC), Stainless Steel (CF8M/CF8)

Disc Sealing Ring Construction

Multi-layered Stainless Steel + Flexible Graphite Laminate

Stem / Shaft Material

17-4 PH Stainless Steel / SUS 630 / Nitronic 50

Stem Packing System

Live-loaded Flexible Graphite / Braided Carbon Rings

Actuator Mounting Interface

ISO 5211 Top Flange for Lever, Gear, or Actuators

Nominal Valve Size (inches)

Stem Diameter (mm)

Body Height (mm)

Total Component Length (mm)

3″

290

114

4″

325

127

6″

390

140

8″

455

152

10″

515

165

12″

580

178

14″

635

190

16″

710

216

Technical Advantages

By using an optimized conical sealing path, our triple offset design entirely eradicates disc-to-seat friction during rotation to drastically reduce operating torque and actuation costs. Furthermore, the combination of a blowout-proof stem and standard fire-safe construction guarantees maximum operational safety and low fugitive emissions in high-temperature or volatile environments.

Compliances

ISO 9001:2015

API-6D

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Industry Application

Oil & Gas Refining

High-temperature hydrocarbon processing and hazardous vapor isolation requiring certified fire-safe protection.

Petrochemical Plants

Managing highly corrosive fluids and chemical compounds reliably with low-emission stem packaging lines.

Power Generation

Critical steam isolation, cooling water distribution, and boiler feed water throttling systems inside modern thermal stations.

LNG & Cryogenic Storage

Delivering bubble-tight closure at sub-zero temperatures with specialized extended-bonnet cryogenic trim.

Water Treatment Utilities

High-capacity municipal water distribution and desalination pipe networks needing reliable bi-directional sealing.

Steel & Iron Foundries

Throttling hot blast furnace gases and cooling exhaust air lines under high particulate, dust-laden environments.

Frigate Approved Quality Management System

At Frigate, quality is built into every stage of manufacturing. Our approved Quality Management System ensures that every material component.

Incoming Material Checking

Before production begins, all incoming materials are checked against specifications, drawings, and supplier documents.

In-Process Inspection

Quality is monitored during manufacturing to prevent defects and maintain process consistency.

Final Dimensional Checking

Finished parts are inspected before dispatch to confirm compliance with customer drawings and tolerances.

Packaging Control

Finished components are packed safely to prevent damage during handling and transportation.

Incoming Material Checking

In-Process Inspection

Final Dimensional Checking

Packaging Control

Quality Document

To help buyers evaluate our quality systems, we provide sample documents that reflect our inspection and reporting standards.

How We Delivered

Complex geometries engineered solutions that move businesses forward.

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Bento Boxes for D2C Segment

Units Manufactured Monthly

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Defence-Grade Cable Supply

Cost savings

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Flange Assembly for Pump

Faster Production

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Having Doubts? Our FAQ

Are these valves bi-directional, and does the shut-off rating change based on flow direction?

Yes, Frigate triple offset butterfly valves are engineered for bi-directional zero-leakage shut-off compliant with API 598 and ISO 5208 Rate A. While they seal perfectly in both directions, we flag a “preferred flow direction” on the body to optimize torque performance and maximize the lifespan of the seal ring under continuous high-differential pressures.

What materials do you offer for highly corrosive or abrasive media?

Beyond our standard stock of Carbon Steel (WCB) and Stainless Steel (CF8M), Frigate routinely manufactures these valves in specialty alloys for severe service. We provide Super Duplex, Monel, Hastelloy, and Inconel configurations, alongside hard-faced Stellite seating surfaces to withstand severe erosion and chemical attack.

Do your valves comply with low fugitive emission mandates?

Absolutely. Environmental safety is a core priority for Frigate. Our standard triple offset configurations are designed and certified to meet stringent fugitive emissions standards, including ISO 15848-1 Class BH and TA-Luft, utilizing live-loaded graphite packing systems to prevent hazardous material leaks.

Can Frigate supply fully automated valve packages, or do you only sell bare-stem valves?

We offer both. Frigate can deliver bare-stem valves with ISO 5211 mounting pads for your own integration, or deliver a fully tested, turnkey automated assembly. We partner with leading global brands to supply pneumatic, electric, or electro-hydraulic actuators complete with positioners, limit switches, and solenoid valves.

How do I request a custom quotation for a specific project?

You can contact our technical sales team directly through our inquiry form or via email. To provide an accurate proposal, please supply your pipeline’s operating medium, design pressure, minimum/maximum operating temperatures, preferred body/trim materials, and whether automation is required.

We'd love to Manufacture for you!

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LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

10-A, First Floor, V.V Complex, Prakash Nagar, Thiruverumbur, Trichy-620013, Tamil Nadu, India.

Operations Office

9/1, Poonthottam Nagar, Ramanandha Nagar, Saravanampatti, Coimbatore-641035, Tamil Nadu, India. ㅤ

Components Built for Critical Performance

Engineered Products for Critical Applications

Triple Offset Butterfly Valves

Order Type

Quantity Range

Lead Time*

Product Description

Testing & Inspection Standard

Operating Temperature Range

Leakage Class

Fire Safety Certifications

Fugitive Emissions Compliance

Body Material Options

Disc Sealing Ring Construction

Stem / Shaft Material

Stem Packing System

Actuator Mounting Interface

Nominal Valve Size (inches)

Stem Diameter (mm)

Body Height (mm)

Total Component Length (mm)

Technical Advantages

Compliances

ISO 9001:2015

API-6D

Let's Get Started

Industry Application

Frigate Approved Quality Management System

Quality Document

How We Delivered

Having Doubts? Our FAQ

We'd love to Manufacture for you!

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

LOCATIONS

Registered Office

Operations Office

Other Locations

GENERAL ENQUIRIES

Get Your Quote Now

Triple Offset Butterfly Valves

Get Latest Price

Triple Offset Butterfly Valves

Get Latest Price