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67CS and 67CFS Series
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
traffic 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.
Regular 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 set pressure, remove the closing cap or
loosen the locknut and turn the adjusting screw clockwise
to increase set pressure or counterclockwise to decrease
pressure. Monitor the set pressure with a test gauge
during the adjustment. Replace the closing cap or tighten
the locknut to maintain the desired setting.
Taking Out of Service (Shutdown)
▲
To avoid personal injury resulting from
sudden release of pressure, isolate
the regulator from all pressure before
attempting disassembly.
2
Note
WARNING
Parts List
Types 67CS and 67CSR
Key
Description
1
Body
3
Flange Screw
4*
O-ring
7
Spring Case Assembly
10*
Valve Cartridge
(1)
11*
Valve Plug
(1)
12*
Valve Spring
(1)
13*
Valve Retainer
(1)
14*
O-ring
(1)
15*
Soft Seat
(1)
16*
Diaphragm Assembly
17
Spring
18
Adjusting Screw
19
Lock Nut
20
Upper Spring Seat
22
Pressure Gauge (not shown)
23
Pipe Plug (not shown)
30
NACE Tag (not shown)
31
Panel Mounting Nut
33
Closing Cap
39
Bottom Plate
45
Vent Screen
Types 67CFS and 67CFSR
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*
Valve Cartridge
(1)
11*
Valve Plug
(1)
12*
Valve Spring
(1)
13*
Valve Retainer
(1)
14*
O-ring
(1)
15*
Soft Seat
(1)
16*
Diaphragm Assembly
17
Spring
18
Adjusting Screw
19
Locknut
20
Upper Spring Seat
22
Pressure Gauge (not shown)
23
Pipe Plug (not shown)
26*
Filter Gasket
30
NACE Tag (not shown)
31
Panel Mounting Nut
33
Closing Cap
34
Spacer
37
Thrust Washer
45
Vent Screen
*Recommended spare part.
1. Valve Cartridge Assembly includes keys 10, 11, 12, 13, 14 and 15.
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