Installation Instructions

Types 67C and 67CR
2





or clogging.
4. 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.
5. 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.
6. 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.
7. 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.
8. The second 1/4 NPT outlet can be used for
a gauge or other use. If not used, it must
be plugged.

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.

Key Description
1 Body
3 Flange Screw
4
(1)
O-Ring
7 Spring Case
10
(1, 2)
Valve Cartridge
11
(1, 2)
Valve Plug
12
(1, 2)
Valve Spring
13
(1, 2)
Valve Retainer
14
(1, 2)
O-Ring
15
(1, 2)
Relief Valve Soft Seat
16
(1)
Diaphragm Assembly
17 Spring
18 Adjusting Screw
19 Locknut
20 Upper Spring Seat
39 Bottom Plate
1. Recommended Spare Part
2. Valve cartridge assembly includes keys 10, 11, 12, 13, 14, and 15.
!





control spring to produce an outlet





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.