(1) -
2-1/2" - 8 UN used for BF Systems
(2) - 4"-8 UN Top used
for smaller RF Systems
(3) - 6"-8 UN Top and
Bottom used for larger RF Systems
(4) - 6"TF 6"BF - 6" SNA TOP
FLANGE (TF) AND BOTTOM FLANGE (BF) - Used for MF FG and VN FG Systems
Remember negative pressures
will void fiberglass tank warranties. Maximum negative pressure is five
inches of mercury. Install a vacuum breaker to prevent negative pressures.
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