The OCT Triple Offset Butterfly valve offers cutting edge Butterfly control technology.
Incorporating over 60 years of Engineering Excellence and experience in Butterfly Control engineering and application, Severn can offer an industry leading and patented engineering technology solution for your Butterfly valve requirements.
Incorporating Severn’s Repair Intelligence capabilities which involves providing real market feedback from extensive in-depth analysis from failed valves.
Severn have designed each facet of this valve to provide the most accurate, reliable, and robust service capability possible to help you achieve your core remit of safe operations and minimum downtime.
Severn’s patented Oblique Cone sealing technology (OCT) has been designed from the outset to provide the ultimate cutting edge Butterfly Valve design. With flexibility in mind, the OCT Butterfly Valve can be used in both control and isolation duty, and benefits from interchangeable seals and control trims, this coupled with enhanced safety features means Severn’s OCT valves are some of the most versatile Triple Offset Valves available.
- Patented OCT sealing technology designed from the outset to provide the ultimate in cutting edge Butterfly Valve technology.
- Valve size range – 80mm (3”) – 600mm (24”) with larger sizes up to 72” on request.
- Standard pressure ratings #150 and #300, higher ratings up to #2500 on request.
- Standard face to face dimensions to API 609/ISO 5752 and B16.10 with non-standard dimensions available on request.
- Seat leakage class to ANSI/FCI 70.2. Class IV, API 598 Zero.
- Standard Design temperature: -47°C to 230°C – Higher/lower temperatures available on request.
- Manufactured in most castable materials such as Carbon Steel, Stainless Steel, Duplex, Super Duplex, Aluminium Bronze, Monel, Titanium etc.
- Designed to be used for both control & isolation duty.
- Fire safe certified
- Fugitive Emission Packings as standard
- Interchangeable Seal options
- OCT-SW designed for seawater applications to eliminate the risk of galvanic corrosion.
- The quarter turn design ensures ease of actuation.
- Fully in-field serviceable, designed to be repaired, not replaced.
- Dual anti-blowout protection as standard.
- No internal bolting to come loose due to vibration.
- Streamlined one piece disc, maximises Cv and minimises flow restriction.
- Disc supplied hard faced as standard for improved abrasion resistance.
- Seal options include Laminate Seal, Hybrid Polymer Metallic Seal and Solid Metal Seal.
- Torque seated design ensures consistent sealing performance.
- Self-compensating design for wear and temperature.
- Available with a range of low noise and anti-cavitation trims.
- OCT-SW – Isolates all graphite from contacting the line media to remove the risk of galvanic corrosion.
- ISO 15848 Certified packings as standard.
- Fire safe certified in accordance with ISO 10497, API 607 & API 6FA. (#150 & #300)
- In field serviceable with only basic tools.
Sizes
- Valve size range – 80mm (3”) – 600mm (24”) with larger sizes up to 72” on request.
Valve Body Ratings
- ASME / ANSI #150 and #300 – Standard.
- Up to #2500 on request.
- Special / Non-standard ratings such as: API, BS EN, JIS available on request.
Body Styles
- Wafer.
- Lugged.
- Double flanged (Short Pattern).
- Double flange Long Pattern available on request.
- Butt Weld End available on request.
End Connections
- Raised Face.
- Flat Face.
- Ring Type Joint.
- Butt Weld End available on request.
Face to Face Dimensions
- API 609.
- ISO 5752.
- B16.10.
- Non-standard available on request.
Bonnet Styles
- Standard.
- High temperature.
- Cryogenic.
Trim options
- Standard.
- Anti Cavitation / Low Noise.
- Full Baffles.
- Half Baffles.
- Hard Faced (coatings and weld overlay).
Construction Materials
- A wide range of standard materials are available for both the valve pressure containing parts and trim, including carbon and stainless steel, duplex/super duplex, aluminium bronze, titanium, and high nickel alloys. Stellite, and other hard facings/coatings are available. For further details on materials please contact us via sales@severnvalve.com
Paint
- A wide range of paint finishes are available including enamel, alkyd gloss and various epoxy finishes.
Clean Build
- Severn maintains high clean build standards-utilising clean build areas including Oxygen clean and a Ultra High Purity clean room.
Actuation
- We offer a wide range of actuators including-pneumatic scotch yoke and rack and pinion, electric, hydraulic, electro-hydraulic and manually operated.
Instruments
- A wide range of control instruments are available from Severn, including: positioners, air-filter regulators, volume boosters, solenoid valves, and lock-up valves.
Bespoke Solutions
We can offer bespoke tailored solutions to suit specific customer needs, these include reduced diameter internals, steam jackets and 3-way valves etc.
Offshore Platform & FPSO
- Seawater lift pump back pressure control
- Ballast water flow control
- Hydrocarbon gas flow control
- Fire main bypass control
- Fire Water Isolation & Control
Refinery
- Flare gas control
- Flow balancing for fiscal metering
Power Generation
- LP and MP steam control
- Cooling water flow and back pressure control
- Cooling tower de-icing
LNG Storage and Transportation
- Loading & unloading flow control
- LNG recirculation control
- LNG tank flow control
- LNG, LPG & GTL Plants
Urea, Ammonia & Fertilizer Production
- Synthesis gas flow control
- Urea flow control
- HP steam pressure reduction
- Regulator Level Control & Isolation Valves
Chemical Processing Valves
- Brine Control
- Flare inlet Control
- Steam
- Tail Gas
- Hydrogen Gas
- Cooling Water Isolation & Control
More available on request via sales@severnvalve.com