Ball – Trunnion Mounted – Pipeline
Robert Cort C-B5 Trunnion Mounted Ball Valves (Pipeline)
Manufacturer of pipeline ball valves for a wide range of applications. With a global reputation for high quality, reliability and safety, the Cort C-B5 trunnion mounted pipeline ball valve is available in sizes from 150mm – 1200mm (6” to 48”) and pressure ratings from class 150 to 2500.
The Cort C-B5 Ball Valve uses a three piece, bolted body design manufactured from ring rolled forgings. The cast or forged ball features integral, external trunnions which turn in bearings mounted in bearing retainer blocks. These bearing retainers are precision located between the valve closures which are then able to resist the pressure loading on the ball.
Size Range
DN150 – DN1400 / 6” – 56” Bore
Pressure Rating
ANSI 150 up to 2500
Materials
Carbon Steel, Stainless Steel & Ferralium®
Applications
Flowlines, manifolds, pipeline transmission and distribution, pressure regulation and metering runs, underground storage, waterflood and general pipeline service in onshore, offshore and subsea locations. Our C-B5 ball valves can also be used as sphere launchers or receivers when fitted with a sphere-lock ball.
Standard Features
- Approved to API 6D.
- Trunnion Mounted (Low operating torque).
- Bubble-tight sealing from zero to full rated pressure.
- Metal-to-metal primary seal – protected ‘O’ ring secondary seal.
- Self-cleaning ball.
- Piggable.
- 3 – piece Bolted construction allows for disassembly maintenance on site.
- Double stem seals – can be replaced with pipeline under pressure.
- Integral mechanical stops.
- Both upstream and downstream seat seals capable of sealing upstream pressure.
- Full block and bleed capability.
- Seal integrity can be checked by pressurising the body cavity only.
Option
- Hardness controlled materials (to suit NACE MR-01-75).
- Spring Energized Polymer Seals.
- Emergency sealant injection (seat and stem seals).
- Stem extensions for operating underground.
- Transition pups for welded ends.
- Regular or Venturi Port.
MATERIALS OF CONSTRUCTION
| Standard | Options Include | |
| BODY | Carbon Steel | Weld Overlayed |
| ASTM A350-LF2 (class 1) Modified (50000psi min yield) | Epoxy/Phenolic Linig | |
| CLOSURES | Carbon Steel | Weld Overlayed |
| ASTM A350-LF2 (class 1) Modified (50000psi min yield) | Epoxy/Phenolic Linig | |
| BODY BOLTING | ASTM A193 Grade B7 Studs | Low Temperature Alloy Steel |
| ASTM A194 Class 2H Nuts | ||
| GLAND PLATE | Carbon Steel | Stainless Steels |
| BS EN10025 S355 | Weld Overlayed | |
| ASTM A350-LF2 | Epoxy/Phenolic Linig | |
| BEARING RETAINERS | Carbon Steel | Weld Overlayed |
| BS EN10025 S355 | Fibreglide Resin | |
| BEARINGS | Steel backed PTFE Type DU | Weld Overlayed |
| THRUST WASHERS | Electroless Nickel Coated Carbon Steel | |
| BALL | Electroless Nickel Coated Carbon Steel | Stainless Steels |
| ASTM A350-LF2 | Weld Overlayed | |
| Hard Faced (Tungsten Carbide or Stellite) | ||
| SEAT RINGS | Electroless Nickel Coated Carbon Steel | Stainless Steels |
| BS 970 070M20 | Duplex Stainless Steel | |
| BS 970 080M40 | Weld Overlayed | |
| Hard Faced (Tungsten Carbide or Stellite) | ||
| SEAT SPRINGS | 18/8 Austenitic Stainless Steel | Inconel X750 |
| ‘O’ RING SEALS | Specially compounded Nitrile synthetic rubber | Viton |
| HNBR | ||
| Nylon PA12G (Face Seal) | ||
| STEM | Electroless Nickel Coated Alloy Steel | Stainless Steels |
| BS 970 709M40 | Duplex Stainless Steel | |
| DRIVE PINS | Alloy Steel | Stainless Steels |
| BS 970 709M40 | Duplex Stainless Steels |
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