Friday, April 29, 2016

Rupture Disks for Wind Turbine Breaking Systems

Rupture Disks for Wind Turbine Breaking Systems
Wind turbines use rupture discs on
hydraulic braking systems.
A rupture disc is a one-time pressure relief device that, in most cases, protects a pressure vessel, pipe, tank, or reservoir from critical over-pressurization or damaging vacuum conditions. Rupture discs come in many sizes, materials, and mounting patterns. They are used commonly in chemical, petrochemical, pull & paper, pharmaceutical and food and beverage industries.

One unique application for rupture discs is on the hydraulic breaking system on wind turbines.

Continental Disc Corporation, a well known manufacturer of
rupture discs designed a version used for hydraulic brake systems. Their model CD31179 provides over pressure relief in an accurate and leak-free safety relief device for the control valve/accumulator system. The rupture disc assembly protects equipment from damage and down time in the event of overpressure conditions.

rupture disc for hydraulic breaking
Continental Disk
model CD31179
Their rupture disc assembly is an efficient leak-free safety relief device for hydraulic braking systems used to stop the turbine during undesirable wind conditions and maintenance, protecting equipment from damage, and significantly reducing operating costs and downtime.

Specifications for the wind turbine hydraulic breaking system rupture disc are:

  • Available Mounting Thread Interface: 3/8” (9.5 mm) to 1” (M26) diameter threads in most thread classes
  • Available in a wide range of sizes, materials, and burst pressure ratings for use in numerous protection applications
  • Full open design for optimum  ow and reliable performance
  • For use in liquid or gas service and systems operating at up to 70% of the Rupture Disc’s rated burst pressure
  • Single component solid metal tension acting rupture disc
  • Burst Pressure Available From: 1000 to 3000 psig at 72°F (70 Barg to 200 Barg at 22°C)
  • Available Nominal Rupture Disc Size: 3/16” (4.5 mm) to 1” (25mm) diameter
  • Standard Materials:
    • Disc - 316 SS, Inconel®* or Nickel 
    • Holder - Brass or 316 SS
For more information about this application, contact:

21060 Corsair Blvd
Hayward, CA 94545
Phone: (510) 274-1990
Fax: (510) 274-1999