Emerson Fisher R622 - Parts Ordering and List; Parts List; Inlet Screen and Orifice Replacement

Type R622
6
8. Remove lever (key 27)
9. Remove stem assembly (key 28)
10. Remove disk (key 33) from stem assembly
(key 28). Examine the disk. If it is nicked, cut, or
otherwise damaged, the disk should be replaced.
11. Put together in reverse order.
Inlet Screen and Orice Replacement
1. Remove the regulator from line.
2. Remove machine screws (key 4).
3. Remove inlet O-ring (key 5). Lubricate a new inlet
O-ring and place on inlet tting (key 3).
4. Remove inlet screen (key 13). Clean and/or
replace the inlet screen, if necessary.
5. Install the inlet screen (key 13) and inlet tting
(key 3). Then install and tighten the machine
screws (key 4) to 15 to 30-inch-pounds-force (2 to
4 N•m).
6. To replace the orice, follow steps 1 through 4,
and then remove orice (key 24) from body.
Examine the seating edge of the orice. If it is
nicked or rough, it should be replaced. Treat the
external threads of the new orice with lubricant
before reassembling, tightening to 15 to
20-inch-pounds (2 to 3 N•m) of torque.
7. Install the inlet screen (key 13) and inlet tting
(key 3). Then install and tighten the machine
screws (key 4) to 15 to 30-inch-pounds-force
(2 to 4 N•m).
Parts List
Key Description Part Number
1 Body, Aluminum T80567T0GY2
2 Pipe Plug, Carbon steel (2 required) 1D8293T0022
3 Inlet Fitting, Aluminum T21176T0BK2
4 Machine Screw, Carbon Steel (12 required) T13526T0012
5 O-Ring, Nitrile (NBR) T14431T0012
13 Inlet Screen, 18-8 Stainless steel T14436T0012
16 Relief Spring, 302 Stainless steel T13612T0012
17 Diaphragm T21163T0012
18 Pusher Post, Acetal T40653T0012
19 Lower Spring Seat, Zinc-plated steel T14396T0012
20 Relief Spring Retainer, 18-8 Stainless steel T13613T0012
22 Spring, Zinc-plated steel See Table 1
23 Adjusting Screw, Delrin
®
For use with inches w.c. springs T21186T0012
For use with psig spring T21202T0012
24 Orice, Aluminum T21126T0012
25 Spring Case Assembly, Aluminum T40655T0022
26 Vent Screen, 18-8 Stainless steel T1121338982
27 Lever, Zinc-plated steel T21197T0012
28 Stem Assembly T14452T0012
29 Pin Lever, 18-8 Stainless steel T14397T0012
30 Machine Screw, Carbon-plated steel (2 required) 1E175828982
31 Closing Cap T21187T0012
33* Disk, Nitrile (NBR) T14437T0012
38 O-Ring, Nitrile (NBR) T14422T0012
41 Information Label - - - - - - - - - - -
*Recommended spare part
Delrin
®
is a mark owned by E.I. du Pont de Nemours and Co.
Parts Ordering
The type number, orice size, spring range, and date
of manufacture are located on the spring case. Always
provide this information in any correspondence with
your local Sales Ofce regarding replacement parts
or technical assistance. If construction changes are
made in the eld, be sure that the information label is
also changed to reect the most recent construction.