Benoil Services Ltd

8.9. Burst Discs 1½"-style

8.9.1. 1½"-style disc with chamfered edge to seat on BS.129.VI75 o-ring provided.
           Made in alloy C-276 foil; other materials on request. Bore is nominal 1.5" (38mm).
           Now stocked in two threads.
           Thickness 5/8" (16mm).
             This is the common form for these discs.
1½"-style Burst Disc with thread 1-7/8" 12-UN-2A
1½"-style Burst Disc with thread 1.5" BSP-11tpi
8.9.2. 1½"-style disc with carried BS.131.VI75 o-ring provided.
           Made in alloy C-276 foil; other materials on request. Bore is nominal 1.5" (38mm).
           Thickness 0.9" (23mm).
             This is the less common form for these discs.
1½"-style Burst Disc with thread 2.00" 16-UN-2A

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