Binks MODEL 41-11150
PUMP PROTECTOR
For 3-inch to 10-inch air motors
Replaces
Part Sheet
77-2257R-1
Part
Sheet
77-2257R-2
The Binks “Pump Protector” is an air flow limiting valve with a
manual reset. The Pump Protector senses an increase in air flow
and automatically shuts off the supply of air to a pump (or other
air-driven device) when:
a. Fluid supply to pump is interrupted.
b. Air enters the siphon hose causing cavitation (as when hose
develops a leak).
c. Pump check valves and packings are worn out.
d. Broken air hose between Pump Protector and pump air motor.
e. Broken fluid hose downstream of pump.
SPECIFICATIONS:
Inlet and outlet: 3/4 NPT (f)
Air flow capacity: 10-150 CFM 0.28-4.25 M
3
/Min.
Working Pressure: 20 to 125 PSIG 1-4-8.8 BAR
Shipping Weight: 1-1/4 lbs. .57Kg
Dimensions: 3-1/2” x 3-1/8” x 3-3/16” thick
(8.9 x 7.9 x 8.1 cm)
FUNCTION
TO PUMP AIR MOTOR
AIR LINE LUBRICATOR (IF USED)
RESET BUTTON
“PUMP PROTECTOR”
FILTERED AIR SUPPLY
AIR PRESSURE REGULATOR GAUGE
1. Install Pump Protector as shown in illustration above.
2. Install air pressure regulator upstream of Pump Protector.
3. Install air line lubricator downstream of Pump Protector.
4. For installing a Pump Protector on a Binks air control unit utilizing
1/4” and 1/2” air regulators, use fitting as furnished, and install
as illustrated.
INSTALLATION NOTES
HORIZONTAL INSTALLATION
Air Control Unit with 1/4” Air Regulators
(May also be installed in a vertical position.)
HORIZONTAL INSTALLATION
Air Control Unit with 1/2” Air Regulators
(May also be installed in a vertical position.)
HAR-507 Regulator
NOTE
Each Pump Protector should control one pump ONLY.
NOTE
IMPORTANT: The Pump Protector must be used with an air pres-
sure regulator upstream to obtain best results.
Pipe Nipple – 1/4" NPT x 7/8" Long
Bushing – 1/4" NPT(f) x 3/4" NPT(m)
41-11150 Pump Protector
Ball Valve – 1/4" NPT(m)
237-635 Regulator
Double Male Nipple – 1/2" NPT
Bushing – 1/2" NPT(f) x 3/4" NPT(m)
41-11150 Pump Protector
Double Male Nipple – 1/2" NPT
Ball Valve – 1/2" NPT(f)
2
OPERATING INSTRUCTIONS
1. Turn valve (3) counter-clockwise to full open.
2. Adjust air pressure regulator to obtain desired pump
fluid output pressure while spraying.
3. Turn valve (3) clockwise while spraying until pump
shuts off.
4. Turn valve (3) counter-clockwise a correct number of
turns, according to pump air motor size as indicated in the
table below.
5. Lock valve (3) setting by finger-tightening locknut (4)
against retainer (5).
6. Press valve assembly (11) reset button on side of
“Pump Protector” until pump starts, and is operating
satisfactorily under spraying condition. Release reset
button.
7. If pump accelerates and shuts off, corrective action
should be taken. Refer to a, b, c, or d (below).
8. Restart system by repeating step 6.
AIR MOTOR SIZE, inches 3 4 5 6 8 10
C.C.W. turns 1/8 1/4 3/8 1/2 3/4 1
Check out Pump Protector setting as follows
(for siphon outfitted pumps only):
a. With pump running, remove siphon tube from fluid
container.
b. Note acceleration of pump and increase in air flow.
c. Note whether Pump Protector senses increased air
flow and, in so doing, shuts off air supply to pump.
d. If pump shuts off, return siphon to fluid container
and restart pump by pressing reset button on Pump
Protector.
e. If pump DOES NOT shut off, follow Operating
Instruction step 3, and return siphon to fluid container.
f. Repeat procedure described in Operating Instructions.
TROUBLESHOOTING
PROBLEM SOLUTION
1. Pump does not shut off when fluid supply is used up. Improper Valve (3) setting. Refer to operating instructions.
2. Pump shuts off without accelerating. Turn Valve (3) 1/4 turn C.C.W. and lock.
If above fails to remedy situation, remove Valve Assembly (1),
and check for broken Spring (9).
3. Pump stops and starts repeatedly by itself after fluid. Check the following parts for damage, and replace if necessary:
has been used up. Diaphragm (17), seating surface on Valve Assembly (11) and
Diaphragm (14).
NOTE
When changing air pressure regulator setting, repeat operating
instructions 1 through 6.
CA PROP
65
PROP 65 WARNING
WARNING: This product contains chemicals known
to the State of California to cause cancer and
birth defects or other reproductive harm.
3
Binks MODEL 41-11150 PUMP PROTECTOR
For 3-inch to 10-inch air motors
1 41-11145 ■† VALVE ASSEMBLY . ..............1
2 20-3626* SPIROL PIN,
7/32” DIA. X 2-1/2 “ LONG ......1
3 41-11144* VALVE ........................1
4 54-323* LOCKNUT......................1
5 41-11143* RETAINER......................1
6 20-4445* O-RING, VITON 2-022 (Not Shown) . . .1
7 20-4761* O-RING, (Not Shown)
9/16” I.D. X 11/16” O.D. ........1
8 20-388 BALL, 3/8” DIA. .................1
9 41-17 SPRING........................1
10 41-11146 GUIDE ........................1
11 41-10445† VALVE ASSEMBLY ...............1
12 20-2288 PLUG, 1/4 NPT ..................1
13 41-11142 BODY .........................1
14 85-306 DIAPHRAGM ...................1
15 41-11148 HOLDER .......................1
16 20-1160 FLAT HD. SCREW,
10-32 X 1/2” LONG ............1
17 41-11149 DIAPHRAGM ...................1
18 41-11147 CAP ..........................1
19 41-11140# INSTRUCTION PLATE (Not Shown) ....1
20 20-842◆ FIL. HD. SCREW,
10-24 X 1/2” LONG ............6
◆ Tighten to 20-25 in. lbs. torque.
* Included in Valve Assembly (1).
† Sold only as a complete assembly.
# Outlet port located on same side as word "Binks"
on Instruction Plate (19).
■ Remove first and install last to prevent damage
to Diaphragm (17).
PARTS LIST
(When ordering, please specify part number)
ITEM PART
NO. NO. DESCRIPTION QTY
NOTE
When disassembly or reassembly is required, the
Valve Assembly (1) should be REMOVED FIRST and
INSTALLED LAST to prevent damage to the Diaphragm (17).
20
18
17
15
14
13
11
1
6
5
4
2
12
10
9
8
7
3
16
19
Located on bottom
Located inside
(not shown)
Note position of
diaphragm (17):
The nipple in center
of diaphragm is
toward the cap (18).
Binks MODEL 41-11150 PUMP PROTECTOR
For 3-inch to 10-inch air motors
ALARM HOOK-UP DIAGRAMS FOR PUMP PROTECTORS
(optional)
AIR REGULATOR
PUMP PROTECTOR
41-11150
HAR-507 (60 CFM)
85-214 (30 CFM)
237-635 (100 CFM)
PUMP
AIR
MOTOR
AIR PILOT LINES
(NORMALLY CLOSED)
AIR OPERATED
ELECTRIC SWITCH
(NORMALLY OPEN)
LIGHT
OR
BUZZER
AIR HORN
(20-3654)
(NORMALLY OPEN)
AIR PILOT LINES
PUMP PROTECTOR
41-11150
MANUAL ALARM SHUT-OFF
W/PNEUMATIC RESET
AIR REGULATOR
HAR-507 (60 CFM)
85-214 (30 CFM)
237-635 (100 CFM)
HUMPHREY 2 WAY
VALVE #125A-3-11-20
MILLER FLUID POWER
VALVE #201-301-623
PUMP
AIR
MOTOR
3/13 ©2013 Binks All rights reserved. Printed in U.S.A.
Binks Sales and Service: www.binks.com
WARRANTY
This product is covered by Binks’ 1 Year Limited Warranty.
77-2257R-2 Revisions: Trademark updates;
(P2) Added Prop 65 warning; (P4) Updated
contact information.
U.S.A./Canada Customer Service
195 Internationale Blvd.
Glendale Heights, IL 60139
630-237-5000
Toll Free Customer Service
and Technical Support
800-992-4657
Toll Free Fax
888-246-5732
/
