Installation Guide

2
67C and 67CF Series
piping and bolting practices. Install the regulator
in any position desired, unless otherwise specied,
but be sure ow through the body is in the direction
indicated by the arrow on the body.
Note
It is important that the regulator be
installed so that the vent hole in the
spring case is unobstructed at all times.
For outdoor installations, the regulator
should be located away from vehicular
trafc and positioned so that water, ice,
and other foreign materials cannot enter
the spring case through the vent. Avoid
placing the regulator beneath eaves or
downspouts, and be sure it is above the
probable snow level.
Overpressure Protection
The recommended pressure limitations are stamped on
the regulator nameplate. Some type of overpressure
protection is needed if the actual inlet pressure
exceeds the maximum operating outlet pressure rating.
Overpressure protection should also be provided if the
regulator inlet pressure is greater than the safe working
pressure of the downstream equipment.
Regulator operation below the maximum pressure
limitations does not preclude the possibility of damage
from external sources or debris in the line. The
regulator should be inspected for damage after any
overpressure condition.
Startup
The regulator is factory set at approximately
the midpoint of the spring range or the pressure
requested, so an initial adjustment may be
required to give the desired results. With
proper installation completed and relief valves
properly adjusted, slowly open the upstream and
downstream shutoff valves.
Adjustment
To change the outlet pressure, remove the
closing cap or loosen the locknut and turn the
adjusting screw clockwise to increase outlet
pressure or counterclockwise to decrease
pressure. Monitor the outlet pressure with a
test gauge during the adjustment. Replace the
closing cap or tighten the locknut to maintain the
desired setting.
Parts List
Types 67CF and 67CFR
Key Description
1 Body
2 Drain Valve
3 Flange Screw
4* O-Ring
5 Dripwell
6* Filter Element
7 Spring Case Assembly
9 Filter Retainer
10*
(1)
Valve Cartridge
11*
(1)
Valve Plug
12*
(1)
Valve Spring
13*
(1)
Valve Retainer
14*
(1)
O-Ring
15*
(1)
Soft Seat
16* Diaphragm Assembly
17 Spring
18 Adjusting Screw
19 Locknut
20 Upper Spring Seat
22 Pressure Gauge (not shown)
23 Pipe Plug (not shown)
24 Tire Valve (not shown)
26* Filter Gasket
30 NACE Tag (not shown)
31 Panel Mounting Nut
33 Closing Cap (not shown)
34 Spacer (not shown)
37* Thrust Washer
Types 67C and 67CR
Key Description
1 Body
3 Flange Screw
4* O-Ring
7 Spring Case Assembly
10*
(1)
Valve Cartridge
11*
(1)
Valve Plug
12*
(1)
Valve Spring
13*
(1)
Valve Retainer
14*
(1)
O-Ring
15*
(1)
Soft Seat
16* Diaphragm Assembly
17 Spring
18 Adjusting Screw
19 Locknut
20 Upper Spring Seat
22 Pressure Gauge (not shown)
23 Pipe Plug (not shown)
24 Tire Valve (not shown)
30 NACE Tag (not shown)
31 Panel Mounting Nut
32 Wire Seal (not shown)
33 Closing Cap (not shown)
39 Bottom Plate
* Recommended Spare Part
1. Valve Cartridge Assembly includes keys 10, 11, 12, 13, 14, and 15.
Taking Out of Service (Shutdown)
!
WARNING
To avoid personal injury resulting from
sudden release of pressure, isolate
the backpressure regulator from all
pressure before attempting disassembly.