Bell & Gossett HS 232C Series I In-line Float and Thermostatic Steam Traps - Manual (Page 5)

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7. Install a pipe union (G) on the inlet pipe (B).
G B
8. Position the F&T trap so that the inlet pipe (B)
will connect with the “IN” tapping on the body (H),
and the “DOWN” arrow (J) is pointing down.
J
H
B
IN
9. Install the F&T trap (K) on the inlet pipe (B)
as positioned in Step 8.
K B
10. Install a tee fitting (L) on the return line (M)
near the trap outlet (N).
N
L
M
Q P
For Applications with a Return Line
11a. Install a gate valve (P) on the outlet pipe (Q)
for test or pressure relief.
b. Close the gate valve (P).