Union Holder - Holders
Union Holder

Union Holder

The Union Type Rupture Disk (bursting disc) Holders are reusable units for use on air conditioning systems, high pressure cleaning equipment, gas cylinders, laboratory equipment and autoclaves.


  • Designed for use with PBUT, DUT or SFAZUT series rupture disks
  • Low cost, ideal where installation space is limited
  • Standard 30° angle seat design. Flat seat in stainless steel and 6000# only
  • Sizes: 1/2” (13mm), 3/4” (20mm), 1” (25mm), 1-1/2” (40mm), 2” (50mm)
  • Standard materials of construction: carbon steel and stainless steel. Other materials are available, contact ZOOK
  • 2U Threaded (FNPT) inlet and outlet connections standard. Contact ZOOK regarding Butt-Weld or Socket-Weld connections
  • ASME UD and CE marking available upon request. Contact ZOOK for more information

Holder Specifications

Union-Type Holder Specifications