Aqua Environment Inc 1120 User manual

Aqua Environment Inc drw 1121 2/96 980728; 061207; 090805PS
OPERATION AND MAINTENANCE
MODEL 1120 REGULATOR
GENERAL
The model 1120 is a small, piston type, hand load
regulator available in an outlet pressure range of 0 to
5000 PSI. Functionally it is similar to our model 415 -
5000 regulator but has only a single inlet and outlet
port. It is available with a hex head adjusting bolt and
lock nut for single set pressure use or with the same
adjusting hand knob as used on the model 415
regulator. It can be panel mounted using either the
upper 1.25" threaded section and lock nuts (part
number 952) or the lower 1 inch jam nut. It uses an
unbalanced poppet design for ruggedness and
simplicity. There is a small variation of control pressure
with changing inlet pressure as noted in the
specifications. A 20 to 30 micron filter in the poppet
cartridge prevents damage by contaminants.
SPECIFICATIONS
Max inlet pressure 6000 PSI
Outlet pressure 0 to 5000 PSI
Body ports 1/4" MNPT - inlet at the
bottom centerline
1/4" FNPT outlet on
the side as shown
Flow coefficient (Cv) .06 (equals .07" orifice)
Materials anodized aluminum
body, brass and
stainless interiors
viton & KEL-F seals
Outlet pressure variation 70 PSI increase per
with inlet pressure 1000 PSI drop of inlet
ASSEMBLY PROCEDURE
1. Refer to the cross section drawing and assemble in
clean dry area.
2. Blow all parts clean.
3. Inspect sealing area of vent seat item 3 with 10X
magnification and remove any particles.
4. Install O ring 16 on piston 4.
5. Completely pack area between cap 5 and piston 4
with Cristo lub MCG 121 or 111 or equivalent.
Sufficient grease should be used so it takes pressure
to extrude grease out as piston is inserted into
housing. Wipe off excess.
6. Install O ring 17 with Dow 111 grease and install
seat item 3.
7. Install piston 4 assembly in cap 5.
8. Install cartridge 2 and O rings 18 &19 in body 1. Lub
with Dow 111 grease.
9. Install body 1 into cap 3. Insure seat 3 doesn't fall
out of place. Use Dow 11 on threads between body
and cap and torque to 3 to 15 ft lbs.
10. Apply Slick 50 or equivalent EP grease to
bearings 9 and 10 if used, screw 12 and threads in
cap 8.
x
11. Install spring guide 11, bearings 9 and 10, spring
15, and spring guide 7 as shown.
12. Install cap assembly onto regulator using mating
collar 6. Torque to 3 to 15 ft lbs.
11. Install adjusting screw and knob or bolt and lock
nut items 12 and 13 using Slick 50 grease on
threads.
INSTALLATION
Use a suitable pipe thread sealant such as teflon
tape on inlet and outlet threads. Avoid over torquing
pipe thread. Normal torque applied with a 6 or 8 inch
long wrench is ample. Use ample teflon tape - 3 or 4
turns, not 1 or 2 turns. The inlet is at the bottom of
the regulator as shown. The outlet is at the side.
Optional panel mounting nuts are available (part no.
952). These may be used to mount the regulator
through a 1.25" panel hole. Optionally the regulator
can be mounted using the 1 inch jam nut and body
flange shown near the bottom of the regulator. The
regulator is NOT shipped oxygen clean and should
NOT be used for oxygen service as provided.
Consult the factory for details on oxygen service. AS
WITH ANY REGULATOR, A RELIEF VALVE SET
SLIGHTLY ABOVE THE MAXIMUM DESIRED
CONTROL PRESSURE SHOULD BE INSTALLED
ON THE OUTLET SIDE.
MAINTENANCE & REPAIR
CAUTION As with any regulator or valve,
particulates or moisture can plug or freeze the
internal filter or valve seat. This can occur when up -
stream dryers are not changed or remain unused for
long periods allowing corrosion materials to
accumulate. In critical applications where it is
important not to lose flow, a larger particulate filter
should be used upstream. Also an orifice such as
the Aqua model 796 should be used downstream.
This reduces the tendency to freeze when moisture
is present. Consult factory for details. The user
should establish time intervals for changing the
valve cartridge, filter and upstream dryers based on
experience and service conditions. No
representation is made herein as to time intervals as
each use is unique. Back-up systems should be
used in very critical applications since field
maintenance is hard to insure. The poppet cartridge
832 is a factory assembled item and should be
replaced if required and not disassembled unless
absolutely necessary. Spare cartridges are available
at a nominal cost and should be kept on hand if rapid
repairs are required. IN ALL CASES THE UNIT CAN
BE RETURNED TO THE FACTORY OR DEALER
FOR REPAIR UNDER WARRANTY IF APPLICABLE
OR AT A NOMINAL CHARGE. Maintenance or
repairs should only be done by qualified personnel
in a clean environment by following the drawings
herein.

drw 1121 pg. 2 061207
ASSEMBLY AND DISASSEMBLY
Assembly and disassembly can be done by following the
following drawings and parts list. Also refer to instructions of
the opposite side of this sheet.
PARTS LIST - 1120 REGULATOR
ITEM QTY PART NO. DESCRIPTION
1 1 811 body
2 1 832 poppet cartridge
3 1 726 vent seat
1 1062 non-venting seat (optional)
4 1 1125 piston
5 1 1124 cap, lower
6 1 1126 collar
7 1 849 spring guide
8 1 903 cap, upper
9 1 379-38 bearing (for model 1120-1)
0 delete for model 1120
10 2 379-37 plate (for model 1120-1)
0 delete for model 1120
11 1 410 spring guide (for 1120-1
2 410 spring guide (for 1120)
12 1 378-2 adj screw (for model 1120-1)
1 1120-12 bolt (for model 1120)
13 1 379-30 knob (for model 1120-1)
1 1120-13 lock nut (for model 1120)
14 1 or 2 952 mount nut (optional)
15 1 379-5 spring
16 1 2-010 -90V seal
17 1 2-010 - 90V seal
18 1 2-014- 90V seal, ref.
19 1 2-018 - 90V seal
20 1 1120-20 1" x 14 thd jam nut plt stl
PARTS LIST - 832 POPPET CARTRIDGE
ITEM QTY PART NO. DESCRIPTION
1 1 808 retainer nut
2 1 806 poppet housing
3 1 809 sleeve
4 1 807 seat
5 1 741 poppet
6 1 2-014 - 90V seal
7 1 2-009 - 90V seal
8 1 832-8 spring
9 1 832-9 filter
NOTES
1. mount spring guide 410 with bevel side toward adjusting
screw.
2. Part number 1162 repair kit includes; 1 ea. 832 cartridge, 2
ea. 2-010 O ring, 1 ea. 2-018 O ring, 1 ea. 726 vent seat, 1 ea.
1125 piston.
5. Model 1120-1 ( adjustable) uses hand knob instead of bolt
and lock nut.
6. Non-vented part number is 1120-NV and uses p/n1062
as item 3.
7. Technical Bulletin is 1122
AQUA ENVIRONMENT INC
415 453 8157
Inlet
Port
1
2
3
4
5
6
7
8
9&10
11
12
13
14
15
16
17
18
19
20
Outlet
1
2
3
4
5
6
7
8
9