Bell & Gossett HS 619B Series 754 Self-Contained Pressure Reducing Regulator - Manual (Page 2)

INSTALLATION
Steam
Supply
Globe Valve Recommended
For Throttling Purposes
Optional By-Pass Line
Series 754
Pressure
Reducing
Regulator By-Pass
Inlet
Relief
Valve
Y Strainer
Y Strainer
F&T
Trap
Gate
Valve
Gate
Valve
C
P A
F
H
G
R
D
E
F
Pipe Opening
G
J
1. Determine where to install the regulator, based
on the following requirements:
a. The regulator must be installed where it can
be accessed for adjustment and repair.
2. Install the following ahead of where the regulator
will be installed.
a. A drip trap (A), Y-strainer (P) and gate valve
(R). This insures dry steam.
b. A gate valve (C), Y-strainer (H), pressure
gauge (D), and union (E) in the inlet piping
(F).
c. Install a gate valve (G) in the Y-strainer (H)
for blow down.
3 a. Cap off the outlet pipe (J).
b. Open the Y-strainer’s blow down gate valve (G).
c. Slowly turn steam on with full pressure for five (5)
minutes to blow down the inlet pipe (F).
d. Turn off steam and allow pipe to cool.
e. Remove cap from the outlet pipe (J) and
close the Y-strainer’s blow down gate valve (G).
• To prevent serious burns, the internal pressure of the regulator must be 0 psi (0 bar)
before servicing.
• Connect a pipe to the blow down valve in such a way as to prevent exposure and injury
from discharge.
Failure to follow this caution will cause personal injury.
!
WARNING