The Insert Holder is a 30° seat holder which fits within the bolting pattern of ASME, DIN or JIS companion pipe flanges. Insert Holders are furnished with pre-assembly screws and side clips for bench assembly. These holders are designed to be used with either Standard or Composite 30° Seat (LL) or (HL) Rupture Discs.
The Insert Holder is available in nominal sizes ranging from 1/2" through 12" (13 - 300 mm) to mate with the ASME bolting classes 150# through 2500# and corresponding DIN or JIS flanges. Standard materials of construction include carbon steel and 316 SS. Other materials are available upon request. Refer to Table 9 for holder dimensions.
Insert holders are supplied with a permanently attached stainless steel nameplate indicating flow direction. A three dimensional stainless steel flow direction tag is attached to the rupture disc. Directional arrows on the tags and nameplates provide immediate visual verification that the holder and rupture disc assembly have been properly oriented in the system. In addition, whenever specific holder identification tagging is required, a stainless steel Customer Identification Tag is attached.
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