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The instrumentation products division of Parker Hannifin has introduced the Pro-Bloc API range of integrated valve assemblies aimed at wellhead equipment suppliers and operators that want to enhance their ‘Christmas tree’ and related equipment designs.

The integrated valve assemblies are said to reduce weight by as much as 40 per cent compared with double-block-and-bleed configurations using discrete valves. According to Parker Hannifin, they can reduce space envelopes by as much as 75 per cent.

The range also removes many potential leak paths and risk compared with configurations based on discrete valves and connectors as it eliminates the need for numerous interconnection joints.

The close-coupled flow paths inside Parker’s Pro-Bloc API process-to-instrument valve assemblies provide another advantage, as they are ‘purpose-designed’ to support accuracy of measurement.

Product information

  • The Pro-Bloc API range integrates a complete double-block-and-bleed assembly of fire-safe isolation and venting valves that is suitable for interfacing process and temperature instruments
  • Users can choose from a range of connection styles, including: flanged; welded; Grayloc hubs; and Autoclave cone-and-thread connectors
  • The assemblies are available in three main forms: with ball valves; with needle valves; or with high-performance needle valves that can also meet the Class A or Class B ultra-low-emissions levels of the ISO 15848 standard
  • They are initially available in three choices of pressure rating: 5K, 10K and 15K PSI
  • All have been independently tested for conformance with the API 6A specification for wellhead and Christmas tree equipment

Parker Hannifin — Parker Sales UK

With annual sales exceeding $10bn, Parker Hannifin is the world's leading manufacturer of motion and control technologies and systems, providing precision-engineered solutions for a wide variety of commercial, mobile, industrial and aerospace markets.

To meet its customers' needs in motion and control, Parker provides the broadest range of products available from any single supplier. This is supported by expertise in nine major technologies:

  • Hydraulics
  • Pneumatics
  • Electromechanical
  • Filtration
  • Process control
  • Fluid and gas handling
  • Sealing and shielding
  • Climate control
  • Aerospace

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