Looking closely, one can see the oring seal through the Quarttz window; it appears as a black line and is the sign of a good seal.
Further tightening of the clamp runs the risk of breaking the flange.
953040
Looking closely, one can see the oring seal through the Quarttz window; it appears as a black line and is the sign of a good seal.
Further tightening of the clamp runs the risk of breaking the flange.
953040
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