Installation Instructions

67CF Series
2


against condensation or clogging.
5. A clogged spring case vent hole may cause the
regulator to function improperly. To keep this vent
hole from being plugged (and to keep the spring
case from collecting moisture, corrosive chemicals,
or other foreign material) orient the vent to the
lowest possible point on the spring case or
otherwise protect it. Inspect the vent hole regularly
to make sure it is not plugged. Spring case vent
hole orientation may be changed by rotating
the spring case with respect to the body. A
1/4 NPT spring case vent may be remotely
vented by installing tubing or piping into the vent.
6. For regulator shutdown, install upstream block
and vent valves and downstream block and
vent valves (if required), or provide some other
suitable means of properly venting the regulator
inlet and outlet pressures.
7. Apply a good grade of pipe compound to the
male pipe threads before making connections,
making sure not to get the pipe compound inside
the regulator.
8. Install tubing tting or piping into the 1/4 NPT
inlet connection on the body (key 1) and into the
1/4 NPT body outlet connection.
9. The second 1/4 NPT outlet can be used for a
gauge or other use. If not used, it must be plugged.
10. When installing a 67CF Series regulator in
an existing installation, it may be necessary to
use spacers to adapt the installation. If the
mounting bolts are too long, place a spacer on
the bolt. To be sure the regulator is secure, the
bolts should have at least two full threads
of engagement.

1. With proper installation completed and
downstream equipment properly adjusted, slowly
open the upstream and downstream shutoff valve
(when used) while using pressure gauges to
monitor pressure.
!






outlet pressure higher than the upper




proper range.
2. If outlet pressure adjustment is necessary,
monitor outlet pressure with a gauge during the
adjustment procedure. The regulator is adjusted
by loosening the locknut (key 19), if used, and
turning the adjusting screw or handwheel (key 18)
clockwise to increase or counterclockwise
to decrease the outlet pressure setting.
Tighten the locknut to maintain the
adjustment position.
IN
34
Figure 1. Spacer Diameter and Installation
B2697





0.50








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