Pressure Adjustment:
Turning the adjustment screw in a clockwise direction will increase the pressure
setting; turning in a counterclockwise direction will decrease the pressure setting.
The downstream pressure should always be adjusted to approximately 10 PSI
above the required working pressure, even in the event of pressure fluctuations.
It is advisable to adjust the setting under constant pressure conditions (unit
should not be operating) since a changing flow rate affects the set value.
To avoid readjustment after making a change in pressure setting, we recommend
approaching the required setting from a lower pressure. When adjusting from a
higher to a lower setting, reduce the pressure to a point below what is required,
then adjust upward to the required setting.
Once the desired operating pressure has been reached, the adjusting screw lock
nut should be tightened to maintain the proper setting.
Cleaning and Maintenance:
A clean supply of air to the regulator will assure long periods of uninterrupted
service. Dirt in the stem and disc assembly will lead to erratic operation or loss of
regulation. When cleaning becomes necessary, the air line should be shut off and
depressurized. The regulator should be disassembled using the parts drawing on
this page as a guide. All assembly parts should be cleaned with nothing stronger
than mild household detergent and the regulator body should be blown out with
compressed air.
For proper reassembly, the seat disc must be firmly in place and the poppet stem
must fit into the center hole of the diaphragm assembly.
Components:
Item 1/4" 3/8" 1/2" 3/4" 1"
No. Description (8802) (8803) (8804) (8806) (8808)
1 Adj. Screw Ass'y (Std.) 8804J-12 8804J-12 8804J-12 8806J-12 8806J-12
2 Lock Nut 1484-20 1484-20 1484-20 1488-20 1488-20
3 Bonnet Ass'y (Std.) 8803-2 8803-2 8804-2 8806-2 8806-2
4 Spring Button 1483J-5 1483J-5 1484J-5 1488-5 1488-5
5 Screws 8803-23 8803-23 8804-23 8806-23 8806-23
6 Gauge Plug (not shown) PI004S PI004S PI004S PI004S PI004S
7 Adj. Spring (5-125) 1483-7 1483-7 1484-7 1488-7 1488-7
7 Adj. Spring (1-50) 1483L-7 1483L-7 1484L-7 1488L-7 1488L-7
7 Adj. Spring (100-200) 1483S-7 1483S-7 1484S-7 1488S-7 1488S-7
8 Adj. Screw Ass'y (Panel) 8804P-12 8804P-12 8804P-12 8806P-12 8806P-12
9 Bonnet Ass'y (Panel) 8803P-2 8803P-2 8804P-2 8806P-2 8806P-2
10 Washer (Panel) 1484P-31 1484P-31 1484P-31 1488P-31 1488P-31
11 Nut (Panel) 8804P-3 8804P-3 8804P-3 1488-32 1488-32
12 Tamperproof Bonnet Ass'y N/A N/A J8804-2 N/A N/A
13 Tamperproof Adj. Key 8804-5 8804-5 8804-5 8804-5 8804-5
14 O-Ring 8803-7 8803-7 8803-7 8803-7 8803-7
15 Adj. Screw (Tamperproof) J8804-4 J8804-4 J8804-4 J8806-4 J8806-4
16 O-Ring 7193-1 7193-1 7193-1 7193-1 7193-1
17 Cap (Tamperproof) J8804-3 J8804-3 J8804-3 J8806-3 J8806-3
18 Guide (not shown) N/A N/A N/A 8600A-18 8600A-18
19 Stem, Seat, Retainer Ass'y 8803-56 8803-56 8804-56 8806-56 8806-56
20 Back Cap 8803-3 8803-3 8804-3 8806-3 8806-3
21 Back Cap O-Ring 8803-21 8803-21 8804-21 8806-21 8806-21
22 Back Cap Spring 8804-18 8804-18 8804-18 8806-18 8806-18
23 Diaphragm Ass'y 1483-59A 1483-59A 1484-59A 1488-59A 1488-59A
East: 19 Kimberly Road • East Brunswick, NJ 08816 • Phone: 732-390-8480 / Fax: 732-390-9693
West: 1730 NE Miller Street • McMinnville, OR 97128 • Phone: 503-434-5964 / Fax: 503-472-1989
We reserve the right to make engineering changes in design or materials
without notification.
Rebuilding Kit:
The Regulator Repair Kit includes items 19, 20, 21, 22, and 23. Use Model No.
8800-53 for the 1/4" and 3/8"; 8800-54 for the 1/2"; and 8800-56 for the 3/4" and 1".
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