2
67D Series
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
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.
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 shut-off 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.
Taking Out of Service (Shutdown)
!
Warning
To avoid personal injury resulting from
sudden release of pressure, isolate
the regulator from all pressure before
attempting disassembly.
1. Recommended Spare Part
Parts List
Types 67DFS and 67DFSR
Key Description
1
Body
2
Drain Valve
3
Flange Screw
4
(1)
O-Ring (Dripwell)
5
Dripwell
6
(1)
Filter Element
7
Spring Case
9
Filter Retainer
11
(1)
Valve Stem
12
(1)
Valve Spring
14
(1)
O-Ring (Spring Retainer)
15
(1)
Soft Seat
16
(1)
Diaphragm Assembly
17 Spring
18 Adjusting Screw
19 Locknut
20 Upper Spring Seat
22 Pressure Gauge
23 Pipe Plug
30 NACE Tag
31 Panel Mounting Nut
32 Wire Seal
33 Closing Cap
45 Screen Vent
48 Spring Retainer
49
(1)
O-ring (Plug)
50
(1)
O-ring (Stem)
57 Valve Plug
58
(1)
Seat
65 Filter Retainer Screw
66
(1)
Filter Gasket
Types 67DS and 67DSR
Key Description
1
Body
3
Flange Screw
7
Spring Case
11
(1)
Valve Plug
12
(1)
Valve Spring
14
(1)
O-Ring
15
(1)
Soft Seat
16
(1)
Diaphragm Assembly
17 Spring
18 Adjusting Screw
19 Locknut
20 Upper Spring Seat
33 Closing Cap
45 Vent Screen
48 Spring Retainer
49
(1)
O-ring (Plug)
50
(1)
O-ring (Stem)
57 Valve Plug
58
(1)
Seat
