Benoil Services Ltd

8.10. Burst Discs 1"-style

8.10.1. 1"-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.
1"-style Burst Disc with thread 1-7/8" 12-UN-2A
1"-style Burst Disc with thread 1.5" BSP-11tpi
8.10.2. 1"-style 'slick' disc with chamfered edge to seat on BS.129.VI75 o-ring provided.
           Made in alloy C-276 foil; Bore is nominal 1.5" (38mm).
           Thickness 5/8" (16mm).
             OD is reduced to 1.75".
1"-style Burst Disc 'slick' form
8.10.3. 1"-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).
           Thread 1.7/8" 12-UN-2A.
           Thickness 5/8" (16mm).
           Reverse dome.
1"-style Burst Disc with thread 1-7/8" 12-UN-2A - reverse dome
8.10.4. 1"-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.
1"-style Burst Disc with thread 2.00" 16-UN-2A

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