67D Series
7
the valve seat (key 58) for damage or wear.
Replace part if damaged. The valve stem may
be cleaned or replaced. If the soft seat (key 15)
was removed, make sure it is properly snapped
into place before installing the valve stem. Apply
a high quality lubricant to the O-ring (key 50)
before reinstalling the valve stem.
4. Slide valve plug (key 57) onto valve stem (key 11).
Apply lubricant to O-ring (key 14) and thread in
spring retainer (key 48). Torque spring retainer
to 10 to 12 foot pounds (14 to 16 N•m). Reinstall
the filter gasket (key 66) and filter (key 6) and
secure it with the filter retainer (key 9) and screw
(key 65) and torque to 15 to 30-inch-pounds (1,7 to
3,4 N•m). Reinstall the O-ring (key 4), secure the
dripwell with screws (key 3), and torque to 15 to
30-inch-pounds (1,7 to 3,4 N•m).
Diaphragm Maintenance
Key numbers are referenced in Figures 5 and 6.
1. Back out the adjusting screw or handwheel
(key 18) until compression is removed from the
spring (key 17).
2. Remove the six spring case screws (key 3) to
separate the spring case (key 7) from the body
(key 1). Remove the upper spring seat (key 20)
and spring (key 17).
3. Remove the diaphragm assembly (key 16),
inspect the diaphragm, and replace the assembly,
if necessary.
4. Place the diaphragm assembly (key 16) on the
body (key 1) as shown in Figure 5. Push down on
the diaphragm assembly to make sure the valve
plug (key 57) strokes smoothly and approximately
1/16-inch (1,6 mm).
note
in step 5, if installing a control spring of
a different range, be sure to delete the
spring range originally appearing on the
label and indicate the new spring range.
5. Stack the control spring (key 17) and upper spring
seat (key 20) onto the diaphragm assembly (key 16).
6. Install the spring case (key 7) on the body (key 1)
with the vent oriented to prevent clogging or entrance
of moisture. Install the six spring case screws
(key 3) using a crisscross pattern and torque to 15 to
30-inch-pounds (1,7 to 3,4 N•m).
note
on Types 67DFS and 67DFSR, lubricate
the adjusting screw (key 18) thread to
reduce galling of stainless steel.
7. When all maintenance is complete, refer to the
Startup and Adjustment section to put the regulator
back into operation and adjust the pressure
setting. Tighten the locknut (key 19) if used, and
install the closing cap (key 33) if used
.
Parts ordering
When corresponding with the local Sales Office about
this regulator, include the type number and all other
pertinent information printed on the label. Specify
the eleven-character part number when ordering new
parts from the following parts list.
When ordering replacement parts, reference the key
number of each needed part as found in the following
parts list. Separate kit containing all recommended
spare parts is available.
Parts list
Key Description Part number
Parts Kits
Types 67D, 67DR, 67DS, and 67DSR
- Includes seat (key 58),
O-rings (keys 14, 49, and 50), soft seat (key 15), and
diaphragm assembly (key 16)
Type 67D (without relief)
Brass and Nitrile (NBR) seat R67DX000012
Type 67DR (with relief)
Brass and Nitrile (NBR) seat R67DRX00012
Types 67D NACE, 67DS, and
67DS NACE (without relief)
316L Stainless steel and Nitrile (NBR) seat R67DSX00N12
Types 67DR NACE, 67DSR, and
67DSR NACE (with relief)
316L Stainless steel and Nitrile (NBR) seat R67DSRX0N12
Types 67DF, 67DFR, 67DFS, and 67DFSR
- Includes seat
(key 58), O-rings (keys 14, 49, and 50), soft seat (key 15),
diaphragm assembly (key 16), 5 micron polyethylene filter
(key 6), filter gasket (key 66), dripwell O-ring (key 4), and
four screws (key 3).
Type 67DF (without relief)
Brass and Nitrile (NBR) seat R67DFX00012
Type 67DFR (with relief)
Brass and Nitrile (NBR) seat
Standard kit R67DFRX0012
Low temperature kit (-60°F) R67DFRX0022
Types 67DF NACE, 67DFS, and
67DFS NACE (without relief)
316L Stainless steel and Nitrile (NBR) seat R67DFSX0N12
Types 67DFR NACE, 67DFSR, and
67DFSR NACE (with relief)
316L Stainless steel and Nitrile (NBR) seat R67DFSRXN12
