Procurement of equipment for oil and gas industry

CAMERON Valves & Measurement

 

ORBIT BALL VALVES are check valves with top casing joint, rising stem and trunnion bearing. ORBIT valves are perfect for following applications:

  • Hydraulic lines
  • Cutting off flow meters
  • Switching dehumidifiers
  • Interlocking and bypass
  • Fractionation of products
  • Emergency shutdown
  • Separation of vacuum and pressure systems
  • Heat transfer fluids/hot oil and many other fields of application.

ORBIT valves are perfect for applications where frequent open/close operations are required while maintaining a tight seal.

Each ORBIT valve has an in-built capability for tilt and turn operation, which prevents seal wear that is the prime cause of valve failures. When an ORBIT valve closes, the ball (core) wedges up to the seat tightly, ensuring positive closing. When an ORBIT valve starts to open, the ball (core) leaves the seat and the main flow goes evenly around the butt of the internal component. Thus, the local high speed flow, which usually causes uneven seat wear in common ball valves, gate valves and plug valves, is eliminated. The internal component is then turned into the full open position. The absence of wear in the course of both opening and closing means easy response of the valve at low torque and reliable operation over time. When valve leaks are unacceptable, you can rely on the ORBIT valve principle of operation, which will provide positive closing.

 

 

 

CAMERON T-31 BALL VALVES

 

CAMERON T-31 BALL VALVES are among the most reliable valves in the oil industry; they combine the strength of forged components with compact, lightweight spherical design. They are designed to be operated under severe conditions and do not require maintenance. All welded CAMERON ball valves are usually selected for a number of applications, such as:

  • Gas pumping
  • Product pipes
  • Metering units
  • Dehydration systems
  • Gas distribution systems
  • Natural gas storage
  • Dehydrating plants
  • NGL processing plants
  • NGL pipelines
  • Booster stations
  • CO2 services
  • Marine
  • Underwater

All welded CAMERON ball valves meet the requirements of the following standards: ASME/ANSI 150 up to 2,500 (PN 20 to PN 420) and API 2,000 up to 10,000. They are manufactured from forged steel in order to obtain guaranteed uniform fine-grain structure and permanent strength; standard sizes include 2 to 56 inches (50 - 1,400 mm). 

The original design of all welded CAMERON ball valves gives them maximum strength with minimum weight, as well as maximum resistance to both pressure and stresses in pipelines. Compact spherical design also excludes housing flanges, so that overall size becomes smaller and the number of potential leak paths is decreased.

 

 

 

CAMERON B8 BALL VALVES

 

CAMERON B8 BALL VALVES are designed with all welded housing, which decreases the number of potential leak paths and fully complies with the requirements of ISO 14313/API 6D.

The design of the welded housing allows lowering the weight significantly, especially in shortened configurations (B8a) with butt weld ends (WEx WE). The B8 design is well suited for many spheres of application and can be specially ordered with high alloy trimming. B8 ring welded design is perfect for severe operating conditions in high pressure and corrosive environments and can be trimmed exactly per customer's technical specifications. B8a valve is the same as B8, except that the WE x WE configuration has shorter length from end to end as compared to the standard published sizes of WE x WE according to ISO 14313/API 6D.

B8 ball valve with all welded housing is designed for operation under severe conditions without maintenance. B8 are usually selected for several spheres of application, including:

  • Gas pumping
  • Gas distribution systems
  • Booster stations
  • Product pipes
  • Natural gas storage
  • CO2 services
  • Metering units
  • Dehydrating plants
  • Offshore and deep-sea applications
  • Dehydration systems
  • NGL plants and pipelines

B8 means welded housing and forged steel. Support bearing assemblies are produced in the size range of 6 inches (150 mm) to 60 inches (1,500 mm) and ASME pressure grades from 150 to 2,500.

  • Housing execution: the housing consists of three forged components and the all-welded design minimizes the number of leak paths into the environment; they are shipped in a wide range of materials.
  • The ball is installed on the supports
  • Triple inner stem seal
  • The stem is separated from the ball
  • Anti-blowout stem design
  • Metal-lined self-lubricating friction bearings are manufactured from PTFE with low friction and bearing retaining rings in order to decrease the torque and prolong the service life.
  • PMSS (Primary Metal Secondary Soft): Primary sealing by metal contact between the seat and the ball; secondary protected sealing ring in B8 and B8a
  • Flexible polymeric bearing for soft sealing in B8.1
  • Double piston effect (DPE): double inner sealing in both directions in B8 and B8a
  • Single piston effect (SPE) provides sealing from the pipeline side in B8.1
  • Interlocking and pressure relief and double interlocking and pressure relief
  • Safety relief valve in order to relief the high pressure due to thermal expansion of liquid in B8 and B8a
  • The sealant injection system for pressure sealing of stem and seat
  • External stops adjusted at the factory
  • Built-in stop in the coupler platform for constant indication of closed or open position
  • Electroless nickel plating (ENP) on pressure-controlling parts and stem
  • Support structure with bearing assembly in B8 and B8a

 

GROVE B4, B5 and B7

BALL VALVES WITH SIDE CASING JOINT

 

DESIGN FEATURES OF B4, B5 and B7 SEAT SEALING 
B5 seat design guarantees double inner sealing in both directions (regular self-adjusting to pressure seats have simple inner sealing).

The sealing is achieved by both primary metal contact sealing and secondary pressure sealing by the sealing ring. 

DOUBLE PISTON EFFECT (DPE) 
DPE seat design was invented and patented by the GROVE Company. 

DPE seat design makes it possible for both seats to be sealed by pressure applied from the same side of the valve. In case one of the seats is damaged, there is additional advantage of pressure sealing by the opposite seat. Via this double barrier, the pressure sealing is ensured irrespective of the direction of the flow through the valve. If an upstream seat (1) is damaged, the pressure entering the housing chamber is applied on the downstream seat (2), pressing it tightly to the ball. 

NOTE: Do not confuse the characteristics of DPE and double block and bleed (DBB). 

The first sealing, under the conditions of low pressure drop or vacuum, is achieved by means of floating spring seats, which move freely over small distance along the valve longitudinal axis. Main line pressure downstream of the seat ring supplements the spring seat load and the seat is pressed tightly to the ball. 

GROVE B4, B5 and B7 valves find application at major pipelines, booster, pump and pumping stations, sea platforms, ground terminals, scraper traps. Valves with special configuration are used for underwater plants and liquefied natural gas factories. Grove ball valves are produced in a wide range of diameters and pressure grades (nominal diameter - 1.5"-60"; pressure grades: ANSI 150-2500). Dismountable valve design allows use of forged materials of various grades of carbon, stainless and heat-resistant steels and alloys, thus satisfying the most critical operation conditions.

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