Precision Manufactured in India.Zero Leakage Guaranteed.
21 years. 25,000 sq.ft ISO 9001:2015 certified facility. 30+ CNC machines. CMM-verified accuracy. Sizes DN50 to DN2000+. Supplied to oil & gas, petrochemical, power and water infrastructure projects across India, the Middle East and Southeast Asia.
Triple Offset Butterfly Valves built for processes where failure is not an option.
When a valve fails in a critical pipeline, the cost is never just the valve. It is unplanned downtime, lost production, emergency maintenance teams, safety incidents and regulatory scrutiny. Triple Offset Butterfly Valves eliminate that risk — not by being slightly better than conventional butterfly valves, but by being fundamentally different in how they seal.
Supreme Engineering has manufactured Triple Offset Butterfly Valves in Coimbatore since 2003. Our 25,000 sq.ft ISO 9001:2015 certified facility operates 30+ CNC machines — VMCs, HMCs, VTCs and HTCs — with every critical dimension validated on Coordinate Measuring Machines. This is what precision manufacturing looks like: not a claim on a brochure, but a process you can audit.
Our valves are engineered for oil and gas facilities, petrochemical plants, power generation stations, water infrastructure projects and LNG terminals across India and export markets including the GCC and Southeast Asia.
How the triple offset design delivers zero leakage.
A standard butterfly valve presses its disc against the seat every cycle. Friction creates wear. Wear creates leakage. The triple offset design solves this at the geometry level — not with heavier material or softer seals.
Shaft Behind Seat Centreline
The shaft is positioned behind the valve seat centreline. The moment you begin opening the valve, the disc disengages immediately from the seat. No drag. No friction from the first degree of rotation.
Shaft Off Pipeline Centreline
The shaft sits off-centre from the pipeline axis, creating a cam-like disc movement. The disc follows an efficient arc that further eliminates any rubbing contact during operation.
Conical Sealing Geometry
Sealing surfaces are machined with a conical geometry. Contact between disc and seat happens only at the final moment of closure — uniform, full-circumference, zero rubbing.
What this means
for your plant.
- Friction-free operation extends seal life significantly
- Lower operating torque reduces actuator size and energy consumption
- Metal-to-metal sealing holds at elevated temperatures where soft-seated valves fail
- Consistent shut-off performance from Day 1 to end of service life
- Fewer valve replacements across the plant lifecycle
Engineered features that translate to plant-floor performance.
Triple Offset Geometry
Three precisely engineered offsets eliminate friction between disc and seat. Wear at a fraction of the rate of conventional designs — no unplanned replacements.
Metal Seated Construction
Solid metal seat performs where elastomers cannot: high temperatures, fire exposure, aggressive chemicals. Critical for oil & gas and petrochemical service.
Bi-Directional Sealing
Reliable shut-off in both flow directions. Installation flexibility without specifying separate configurations for forward and reverse flow.
Low Operating Torque
Optimised disc geometry reduces required torque. Specify a smaller, less expensive actuator — lower capex and lower energy consumption.
Fire Safe Design Available
Engineered into the valve from the design stage and documented for compliance with applicable fire safety standards — not an add-on.
Automation Compatible
Compatible with electric, pneumatic, hydraulic and manual actuation. On-off, modulating or remote — engineered to accept the actuator you need.
DN50 to DN2000+ Range
Output of a 25,000 sq.ft precision machining facility with vertical and horizontal turning centres capable of large-diameter components to CMM-verified tolerances.
Precision QMS End-to-End
ISO 9001:2015 compliant. Material verification, dimensional inspection, hydrostatic and seat leakage testing, torque verification — all documented and traceable.
Triple Offset Butterfly Valves: industries and service conditions.
Oil & Gas
Transmission pipelines, process isolation, storage terminals, offshore facilities and refineries demand valves that hold integrity under continuous cycling and elevated pressure. Our valves meet API 609 requirements and are available with fire safe construction, high-alloy material options and extended stem configurations for insulated pipelines.
Discuss your oil & gas application
Metal-to-metal sealing. What zero leakage actually requires.
Zero leakage shut-off is a specification requirement, not a marketing claim. Achieving it consistently requires a sealing system where geometry, material selection and manufacturing precision work together without compromise.
Our conical seating arrangement creates a uniform sealing load across the full circumference of the seat at the moment of closure. Unlike line-contact systems, the conical geometry distributes load evenly — eliminating localised stress points that cause sealing degradation over time.
Every valve is seat leakage tested before it leaves our facility. The test result is documented as part of the valve's quality dossier. You receive a valve with a proven seal — not a valve where you find out the seal performance at commissioning.
Tight Shut-Off
Zero leakage performance at design conditions.
Reduced Leakage Risk
Uniform sealing load eliminates degradation points.
Reliable Long-Term Sealing
Consistent performance across thousands of cycles.
Built for industrial conditions your plant actually operates in.
Industrial process equipment does not operate in ideal conditions. Temperature cycling, pressure transients, abrasive particles in the flow stream, corrosive media and continuous operation over years — these are the real conditions your valve must handle. Supreme Engineering builds for actual plant conditions, not catalogue conditions:
- Heavy-duty body construction for sustained pressure and mechanical load
- Precision-machined sealing components with CMM-verified dimensional accuracy
- High-strength shaft design for high-torque, elevated differential pressure applications
- Advanced bearing arrangements to maintain alignment under operational loads
- Material selection matched to specific process media, temperatures and corrosion environments
- Surface protection systems including coatings and linings specified for the application
Every valve is hydrostatic pressure tested and seat leakage tested before despatch.
Documented and shipped as part of the quality dossier with every order.
Materials manufactured in-house. Not sourced and assembled — precision machined.
Material selection is not a catalogue decision. It is an engineering decision based on process media chemistry, operating temperature, pressure class and corrosion environment. Our application engineering team works with your process data to specify the correct material configuration before manufacture begins.
Our 1,200 MT forging capacity and CNC machining infrastructure — VMCs, HMCs, VTCs and HTCs — mean the material that goes into your valve is machined to tolerance in our facility, not outsourced and assembled.
- 1,200 MT in-house forging capacity
- 30+ CNC machining centres across full size range
- CMM, Contour & Equator Measuring Machines
- Dedicated Tool Room and Gauge Room
- 100% dimensional validation pre-assembly
All materials machined in-house at our Coimbatore facility. CMM-verified dimensional accuracy on every component.
What you actually gain when you specify a Supreme Engineering valve.
Every procurement decision is a lifecycle decision. The valve that costs less to buy but fails in 18 months is the most expensive valve you ever installed.
Reduced unplanned downtime
Metal-to-metal sealing and friction-free operation mean consistent performance. Plan maintenance on your schedule, not the valve's failure schedule.
Lower lifecycle cost
Extended service life and reduced seat wear translate directly to fewer replacements, lower spares inventory and reduced maintenance labour.
Actuator downsizing
Lower operating torque means a smaller actuator — reducing capital cost on new installations and energy on existing automated applications.
Improved process safety
Zero leakage shut-off at design conditions eliminates process fluid migration across the isolation boundary — critical in hazardous, flammable and toxic media service.
Audit-ready documentation
Every valve ships with a complete quality dossier: material certificates, dimensional records, hydrostatic and seat leakage test reports.
Flexible supply chain
Bonded warehousing, local transportation and pick-and-pack logistics from Coimbatore. Port access via Chennai, Cochin and Thoothukudi for export.
Ready to specify? Get a quote from our engineering team.
Typical response within 24 hours. Engineering-led, not a call centre.
ISO 9001:2015. Every valve tested before it reaches your site.
Quality at our facility is not a final inspection — it is a process that begins at raw material verification and ends with a documented quality dossier that ships with your valve. We have maintained a documented QMS since 2003.
- 01
Material Verification
Mill certificates reviewed and material chemistry verified against specification before manufacture begins.
- 02
Dimensional Inspection
Critical dimensions validated on CMM, Contour Measuring Machines and Equator Measuring Machines.
- 03
Precision Machining Validation
In-process inspection at each machining stage using dedicated Gauge Room instruments.
- 04
Hydrostatic Pressure Testing
Body and seat pressure tested to applicable standard requirements.
- 05
Seat Leakage Testing
Bi-directional seat leakage test conducted and documented against leakage class requirements.
- 06
Operational Torque Testing
Valve operated through full stroke and torque verified against design specification.
- 07
Final Quality Inspection
100% final inspection before despatch. Non-conformances are quarantined, not shipped.
Third-party inspection by internationally recognised agencies available on all export orders.
Why ‘manufacturer’ matters. The Supreme Engineering facility at Coimbatore.
There are many valve suppliers in India. There are far fewer valve manufacturers — companies that actually machine, assemble and test the valve in their own facility, under their own QMS, with their own tooling. Supreme Engineering is a manufacturer.
Manufacturing Facility
Forging, precision CNC machining, assembly and testing — all under one roof in Coimbatore. Every process controlled and auditable.
Forging Capacity
In-house forging means control over raw material form from the earliest production stage — precise dimensional requirements, not third-party tolerances.
CNC Machines
VMCs, HMCs, VTCs and HTCs producing precision components across the full DN50 to DN2000+ range. Large-diameter work requires the right turning centres.
CMM & Metrology Validated
Coordinate, Contour and Equator Measuring Machines. Dimensional accuracy is not assumed — it is measured.
Tool Room + Gauge Room
Dedicated tooling, calibrated measurement instruments and process consistency across every production batch.
Sea Freight Access
Chennai Port, Cochin Port and Thoothukudi (V.O.C.) Port. Coimbatore International Airport for urgent air freight.
Non-standard requirements? Our engineering team works from your process conditions up.
Standard catalogue valves are engineered for typical applications. Your application may not be typical. Our in-house engineering capability lets us develop solutions matched to your specific operating conditions — not adapted from a catalogue that was not designed for your process.
All customised solutions are manufactured under the same ISO 9001:2015 QMS as our standard range. No quality compromise on non-standard configurations.
Triple Offset Butterfly Valve — technical specifications.
| Parameter | Supreme Engineering — Range |
|---|---|
| Valve Size Range | DN50 to DN2000 (and above on request) / 2" to 78"+ |
| Pressure Class | ANSI Class 150 to ANSI Class 2500 / PN10 to PN420 |
| Temperature Range | Application specific — contact engineering team with process data |
| Seat Design | Metal Seated (conical geometry, full circumference sealing) |
| Sealing Performance | Zero Leakage / Class VI / As specified per project |
| End Connections | Wafer, Lug, Flanged (ASME B16.5 / B16.47 / EN 1092-1) |
| Flow Direction | Bi-Directional |
| Body Materials | Carbon Steel, SS 304/316/316L, Duplex SS, Super Duplex SS, Alloy Steel, Nickel Alloys |
| Seat / Disc Materials | As specified — stainless steel, hard-faced, special alloys |
| Actuation | Manual (gear / lever), Electric, Pneumatic, Hydraulic |
| Manufacturing Standards | API 609, API 598, ASME B16.34, ASME B16.5, BS EN 593, ISO 15848 |
| Fire Safe | Available in accordance with applicable fire safe standards |
| Inspection & Testing | Per API 598 / project specification. Third-party inspection supported |
| Quality Certification | ISO 9001:2015 — Supreme Engineering, Coimbatore |
| Export Capability | India domestic + Middle East (GCC) + Southeast Asia + Global |
| Lead Time | Contact engineering team — varies by size, material and quantity |
Design & Manufacturing Standards
Manufactured in accordance with applicable international valve standards governing each application and export market.
Quality Certification
- Customer project-specific quality plans and documentation packages available
- Third-party inspection by international agencies: supported and facilitated
- Full material traceability and audit-ready dossiers
Third-party inspection by internationally recognised agencies: supported and facilitated for all export orders.
Engineer-level answers to the questions you'll be asked.
A Triple Offset Butterfly Valve uses three geometric offsets — shaft behind seat centreline, shaft off pipeline centreline, and a conical sealing geometry — to eliminate all friction between disc and seat during operation. Unlike standard butterfly valves, where the disc presses against the seat on every opening and closing cycle and generates progressive wear, the triple offset disc contacts the seat only at the final moment of closure. This delivers metal-to-metal sealing, zero leakage shut-off and significantly extended service life.
Have a question not covered here? Speak to our engineering team directly →
Specify with confidence.
Source from a manufacturer.
Tell us your operating conditions. Our engineering team will specify the right valve configuration for your project — and give you the documentation your QA team needs.
Explore our full valve range
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View productDiscuss your requirements with our engineering team.
Share your project details and our valve engineers will respond with a technical recommendation and commercial proposal — typically within 24 hours.
Typical response: within 24 hours. Engineering team, not a call centre.