Check Bolted Bonnet

Product Description:

Bolted Bonnet Check Valves are normally used in oil and gas, chemical process and pipelines. For pipeline applications Check Valves are based on API 6D design standards and are Full Port and piggeable. Normally the bolted Bonnet design is used in low pressure applications. Applications include pump and compressor discharge, steam lines, condensate lines, chemical feed pumps, cooling towers, loading racks, HVAC systems, pressure pumps, sump pumps and injection lines.

  • Product Types

    • Swing Check
    • Tilting Disc
    • Piston Check
  • Design Standards

    BS 1868 | ASME B 16.34 | EN 12516 or API 6D – both  in cast or forged steel  body.

  • Product Offering

    Size Range: 2” to 64”

    Pressure Class: 150# | 300# | 600#

    Material of construction: Carbon steel (A105-WCB) | Low Alloys (F1-WC1, F11-WC6, F22-WC9) | High Alloys (F91-C12A, F92 & Stainless Steel) | Nickel Alloys (Inconel, Monel, Hastelloy, Duplex & super Duplex) or on customer request or application.

  • Quality

    Materials are 100% European origin. Full trace ability of all components by strict application of restamping procedure. Special attention is given to Pin, Disc and Seat, normally with Stellite 6 overlay, machined with precision and lapped to guarantee tightness. Cladding in various materials can be applied for corrosive and erosive applications .

  • Operation

    The following options are available upon customer request: Hand wheel or gear to be blocked in open or close position or with pneumatic, hydraulic piston for quick closing or opening.