1602273-01 Encore Porcelain Enamel Powder Feed Pump

1602273-01 Encore Porcelain Enamel Powder Feed Pump
Instruction Sheet
P/N 1602273-01
Encorer Porcelain Enamel Powder Pump
WARNING: Allow only qualified personnel to perform the following tasks.
Follow the safety instructions in this document and all other related
documentation.
Introduction
The Encore Porcelain Enamel powder feed pump is a venturi-type pump
that supplies porcelain enamel (frit) powder coatings to powder spray guns.
Two streams of air pump and atomize the powder.
Flow air lifts fluidized powder from a hopper through a pickup tube and into
the pump. The powder is forced out of the pump through the powder hose
to the spray guns. Atomizing air dilutes and atomizes the powder stream
and increases its velocity as it exits the pump.
Pump mount kits are available with 18 and 24 in. pickup tubes.
Figure 1
Encore PE Pump
Installation
WARNING: All conductive equipment in the spray area must be connected
to a true earth ground. Ungrounded or poorly grounded equipment used in
a powder spray area can become electrically charged. This charge can
deliver a severe shock.
See Figure 2.
NOTE: Pump mount O-rings (6) are conductive silicone, to provide a
ground connection between the pump and the hopper lid, and from there to
ground. Do not replace these O-rings with non-conductive O-rings.
E 2012 Nordson Corporation
Part 1602273-01
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Encore PE Powder Feed Pump
Installation
(contd)
1. Install the pump mount O-ring (3) in the groove in the base of the pump
mount (4).
2. Thread the pickup tube into the bottom port of the pump mount.
3. Install the pickup tube/pump mount assembly into an open pump port in
the hopper lid or pump mounting plate, thread the lock nut onto the
pump mount and tighten it securely.
4. Remove the nut (8) and sleeve (7) from the throat holder (9). Slide them
both over the end of the powder hose (10). Make sure the end of the
powder hose is cut straight.
5. Insert the powder hose into the throat holder until it bottoms out on the
ceramic sleeve inside the holder.
6. While holding the hose in place, slide the sleeve and nut down the hose
and start threading the nut onto the throat holder.
7. Use a 12-point 15/16 in. flare nut wrench to tighten the nut until it
bottoms out against the throat holder. Refer to Optional Tools for the
wrench part number.
8. Connect 8-mm blue atomizing air tubing (11) to the atomizing air fitting.
9. Connect 8-mm black flow air tubing (12) to the flow air fitting.
11
5
9
10
A
F
6
12
7
8
4
3
2
1
Figure 2
1.
2.
3.
4.
Pick-Up Tube and Pump Installation
Pickup tube
Lock nut
O-ring
Pump mount
Part 1602273-01
5.
6.
7.
8.
Encore PE pump
Conductive O-rings
Sleeve
Nut
9.
10.
11.
12.
Throat holder
Powder hose
Atomizing tubing − 8-mm blue
Flow tubing − 8-mm black
E 2012 Nordson Corporation
Encore PE Powder Feed Pump
3
Operation
Make sure the hopper is grounded.
Connect fluidizing air to the hopper and turn on the fluidizing air.
Typical pump operating pressures are:
Atomizing Air:
Flow Air:
1.4 bar (20 psi) or 0.85 m3/hr (0.5 cfm)
2.1 bar (30 psi) or 2.5 m3/hr (1.5 cfm)
These pressures are average starting points. They can be adjusted higher
or lower to achieve the desired delivery volume and cloud density.
Maintenance
Daily
Disconnect the powder hose and air tubing quick disconnect fittings.
Remove the pump from the pump mount. Blow out the pump with
compressed air.
Make sure the booth exhaust fan is running. Blow out the powder hose with
compressed air. Always blow out the hose from the pump end into the
booth, not from the spray gun end into the pump.
WARNING: Do not replace conductive O-rings with non-conductive
O-rings. Conductive O-rings provide a path to ground that is required for
powder spray equipment. Failure to observe this warning could result in
arcing and personal injury.
CAUTION: Ceramic pump parts are fragile. Handle them with care to
avoid breakage.
Throat Replacement
1. See Figure 3. Unscrew the nut (1) and pull the powder hose out the
throat holder (5).
2. Unscrew the throat holder (5) from the housing (14) with a 25-mm open
end wrench.
3. Pull the throat (8) out of the throat holder. Remove the O-ring (7) from
the throat.
E 2012 Nordson Corporation
Part 1602273-01
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Encore PE Powder Feed Pump
4. Install a new O-ring on the new throat, then install the throat into the
throat holder.
5. Screw the throat holder into the housing and tighten securely.
6. Push the end of the powder hose into the throat holder until it bottoms
out on the ceramic sleeve.
7. Hold the hose in place while threading the nut onto the throat holder,
then tighten the nut until it bottoms out on the holder.
Nozzle and Ceramic Cup Replacement
1. Disconnect the flow air elbow and female quick disconnect coupling (19,
17) from the nozzle assembly (15).
2. Remove the throat (8) as described in Throat Replacement on page 3.
3. Use Nordson wrench 152999 to remove the inlet adapter (10) from the
housing (14).
4. Unscrew the nozzle assembly (15) from the housing (14). The nozzle
tip is carbide; be careful not to damage it.
5. Remove the ceramic cup (11) and O-ring (12) from the pump body.
6. Inspect all parts and O-rings and replace any that are damaged or worn.
The O-rings (6, 9) on the throat holder and on the inlet adapter are
conductive silicone. Do not replace them with non-conductive O-rings.
7. Install the O-ring (12) and ceramic cup (11) in the housing. Line up the
smaller hole in the cup with the nozzle port.
8. Hold the cup (11) in place with your finger while you thread the nozzle
assembly (15) into the housing. Tighten the nozzle to 8−10.8 NSm (6−8
ft-lbs).
9. Thread the inlet adapter (10) into the housing and tighten it securely.
10. Re-install the throat (8) as described in Throat Replacement.
Ceramic Tube Replacement
To replace the ceramic tube (4), remove the O-ring (3) first. The O-ring
keeps the tube from falling out of the throat holder and breaking when the
powder hose is removed . Install the tube before installing the O-ring.
Part 1602273-01
E 2012 Nordson Corporation
Encore PE Powder Feed Pump
5
Parts
To order parts, call the Nordson Industrial Coating Systems Customer
Support Center at (800) 433-9319 or contact your local Nordson
representative.
Pump Parts
See Figure 3.
Item
Part
Description
Quantity
—
1602268
PUMP assembly, 90_, Encore PE
—
1
1602252
S NUT, tube, 3/4 diameter
1
2
1602253
S SLEEVE, tube, 3/4 diameter
1
3
942101
S O-RING, silicone, 0.75 x 1.00 x 0.125 in.
1
4
107230
S TUBE, 0.50 x 0.75 x 4, ceramic
1
5
1602251
S HOLDER, throat, housing, 90_, Encore PE
1
6
940147
S O-RING, conductive silicone, 0.50 x 0.625 x
0.063 in.
2
7
941113
S O-RING, silicone, 0.438 x 0.625 x 0.094 in.
1
8
9
1602250
941145
S THROAT, venturi, ceramic, 90_, Encore PE
S O-RING, silicone, conductive, 0.625 x 0.812 in.
1
2
10
1602255
S ADAPTER, inlet, 90_, Encore PE
1
11
12
13
14
1602249
1602266
973466
1602248
S
S
S
S
CUP, ceramic, 90_, Encore PE
O-RING, silicone, 0.296 x 0.574 x 0.139 in.
PLUG, pipe, socket, flush, 1/16 in., zinc
HOUSING, 90_, Encore PE
1
1
1
1
15
16
17
18
19
1602254
940093
241041
241042
1096081
S
S
S
S
S
NOZZLE assembly, 90_, Encore PE
S O-RING, silicone, 0.208 ID x 0.07 W
COUPLING, quick disconnect, socket end
COUPLING, quick disconnect, nipple end
CONNECTOR, female, elbow, 8 mm tube x
1/8 RPT
1
1
2
1
2
Note
A
A
NOTE A: Do not replace conductive silicone O-rings with non-conductive O-rings.
Optional Tools
Item
Part
Description
20
152999
Wrench
NS
1602256
Wrench, flare nut, 15/16 in., 12-point
Quantity
Note
NS: Not Shown
E 2012 Nordson Corporation
Part 1602273-01
6
Encore PE Powder Feed Pump
6
5
4
3
2
1
18
17
19
14
13
8
7
16
17
15
12
11
20
10
9
Figure 3
Pump Parts
Part 1602273-01
E 2012 Nordson Corporation
Encore PE Powder Feed Pump
7
24-inch Pickup Tube Parts
See Figure 4.
Item
−
1
2
3
4
Part
1602269
1602261
942161
939613
309477
Description
Quantity
MOUNT assembly, pump, 24 in.
S MOUNT, pump
S O-RING, silicone, 1.125 x 1.275 x 0.125 in.
S NUT, lock, conduit, 3/4 in. NPS
S TUBE, pickup, 0.490 ID x 24 in., 3/8 in. NPS
Note
1
1
1
1
18-inch Pickup Tube Parts
See Figure 4.
Item
−
1
2
3
4
Part
1602284
1602261
942161
939613
309474
Description
4
Figure 4
Quantity
MOUNT assembly, pump, 18 in.
S MOUNT, pump
S O-RING, silicone, 1.125 x 1.275 x 0.125 in.
S NUT, lock, conduit, 3/4 in. NPS
S TUBE, pickup, 0.490 ID x 18 in., 3/8 in. NPS
3
2
Note
1
1
1
1
1
Pickup Tube Parts
Optional Equipment
Part
Description
Note
900619
TUBING, polyurethane, 8 mm OD, black
A
900618
TUBING, polyurethane, 8 mm OD, blue
B
900724
TUBING, 0.50 in. ID, clear
C
NOTE A: Flow-rate air tubing. Minimum order quantity is 50 ft.
B: Atomizing air tubing. Minimum order quantity is 50 ft.
C: Powder hose. Minimum order quantity is 25 ft.
E 2012 Nordson Corporation
Part 1602273-01
8
Encore PE Powder Feed Pump
Issued 9/12
Original copyright date 2012. Encore, Nordson, and the Nordson logo are registered trademarks of Nordson Corporation.
All other trademarks are the property of their respective owners.
Part 1602273-01
E 2012 Nordson Corporation
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