Benoil Services Ltd

8.9. Burst Discs 1-1/4"-style

8.9.1. 1.25"-style disc with chamfered edge to seat on BS.029.VI75 o-ring provided.
           Usually made in alloy C-276; others on request. Bore is nominal 1.25" (32mm).
           Thread is 1.75"-12UN-2A. Thickness 5/8 (16mm).
             This is the common form for these discs.
8.9.1. Burst Discs 1.25"-style - Chamfered Seat for o-ring
8.9.2. 1.25"-style disc with carried BS.127VI75 o-ring provided.
           Usually made in alloy C-276; others on request. Bore is nominal 1.25" (32mm).
           Thread is 1.75"-12UN-2A. Thickness 0.787 (20mm).
             This is the less common form for these discs.
8.9.2. Burst Discs 1.25"-style - Carried o-ring

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