SERVICE AND OPERATING MANUAL
Model EB1-M
Type 3
PRINCIPLE OF PUMP OPERATION
This ball type check valve pump is powered by compressed air and is a 1:1
pressure ratio design. It alternately pressurizes the inner side of one diaphragm
chamber, while simultaneously exhausting the other inner chamber. This causes the
diaphragms, which are connected by a common rod, to move endwise. Air pressure
is applied over the entire surface of the diaphragm, while liquid is discharged from the
opposite side. The diaphragm operates under a balanced condition during the
discharge stroke, which allows the unit to be operated at discharge heads over 200
feet (61 meters) of water head.
Since the diaphragms are connected by a common rod, secured by plates to the
center of the diaphragms, one diaphragm performs the discharge stroke, while the
other is pulled to perform the suction stroke in the opposite chamber.
For maximum diaphragm life, keep the pump as close to the liquid being pumped
as possible. Positive suction head in excess of 10 feet of liquid (3.048 meters) may
require a back pressure regulating device. This will maximize diaphragm life.
Alternate pressurizing and exhausting of the diaphragm chamber is performed by
means of an externally mounted, pilot operated, four-way spool type air distribution
valve. When the spool shifts to one end of the valve body, inlet air pressure is applied
to one diaphragm chamber and the other diaphragm chamber exhausts. When the
spool shifts to the opposite end of the valve body, the porting of chambers is reversed.
The air distribution valve spool is moved by an internal pilot valve which alternately
pressurizes one side of the air distribution valve spool, while exhausting the other side.
The pilot valve is shifted at each end of the diaphragm stroke by the diaphragm plate
coming in contact with the end of the pilot spool. This pushes it into position for shifting
of the air distribution valve.
The chambers are manifolded together with suction and discharge check valves
for each chamber, maintaining flow in one direction through the pump.
INSTALLATION & START-UP
Locate the pump as close to the product being pumped as possible, keeping
suction line length and number of fittings to a minimum. Do not reduce line size.
For installations of rigid piping, short flexible sections of hose should be installed
between pump and piping. This reduces vibration and strain to the piping system. A
Warren Rupp Tranquilizer® surge suppressor is recommended to further reduce
pulsation in flow.
This pump was tested at the factory prior to shipment and is ready for operation.
It is completely self-priming from a dry start for suction lifts of 10-15 feet (9.14 meters)
or less. For suction lifts exceeding 15 feet of liquid, fill the chambers with liquid prior
to priming.
IMPORTANT
Read these instructions completely,
before installation and start-up. It is the
responsibility of the purchaser to retain
this manual for reference. Failure to
comply with the recommendations
stated in this manual will damage the
pump, and void factory warranty.
HAZARD WARNING
POSSIBLE EXPLOSION HAZARD can
result if 1, 1, 1,-Trichloroethane,
Methylene Chloride or other
Halogenated Hydrocarbon solvents are
used in pressurized fluid systems
having Aluminum or Galvanized wetted
parts. Death, serious bodily injury and/
or property damage could result.
Consult with the factory if you have
questions concerning Halogenated
Hydrocarbon solvents.
DANGER
Before doing any maintenance on the
pump, be certain all pressure is completely vented from the pump, suction,
discharge, piping, and all other openings and connections. Be certain the air
supply is locked out or made nonoperational, so that it cannot be started
while work is being done on the pump.
Be certain that approved eye protection
and protective clothing are worn at all
times in the vicinity of the pump. Failure
to follow these recommendations may
result in serious injury or death.
AIR SUPPLY
Air supply pressures cannot exceed 125 psi (8.61 bar). Connect the pump air inlet
to an air supply of sufficient capacity and pressure required for desired performance.
When the air line is solid piping, use a short length of flexible hose not less than 3/4"
(19mm) in diameter between pump and piping to eliminate strain to pipes.
AIR INLET & PRIMING
For start-up, open an air valve approximately 1/2 to 3/4 turn. After the unit primes, an
air valve can be opened to increase flow as desired. If opening the valve increases
cycling rate, but does not increase flow rate, cavitation has occurred, and the valve
should be closed slightly.
For the most efficient use of compressed air and the longest diaphragm life, throttle
the air inlet to the lowest cycling rate that does not reduce flow.
WARREN RUPP, INC. A Unit of IDEX Corporation • P.O. Box 1568 • Mansfield, Ohio 44901-1568 USA • (419) 524-8388 • Fax (419) 522-7867 • www.warrenrupp.com
520-031-000 8/00 Model EB1-M Page 1
A NOTE ABOUT AIR VALVE LUBRICATION
The SandPIPER pump’s pilot valve and main air valve assemblies are designed
to operate WITHOUT lubrication. This is the preferred mode of operation. There may
be instances of personal preference, or poor quality air supplies when lubrication of
the compressed air supply is required. The pump air system will operate with properly
lubricated compressed air supplies. Proper lubrication of the compressed air supply
would entail the use of an air line lubricator (available from Warren Rupp) set to deliver
one drop of 10 wt., non-detergent oil for every 20 SCFM of air the pump consumed at
its point of operation. Consult the pump’s published Performance Curve to determine
this.
It is important to remember to inspect the sleeve and spool set routinely. It should
move back and forth freely. This is most important when the air supply is lubricated.
If a lubricator is used, oil accumulation will, over time, collect any debris from the
compressed air. This can prevent the pump from operating properly.
Water in the compressed air supply can create problems such as icing or freezing
of the exhaust air causing the pump to cycle erratically, or stop operating. This can be
addressed by using a point of use air dryer to supplement a plant’s air drying
equipment. This device will remove excess water from the compressed air supply and
alleviate the icing or freezing problem.
ESADS: Externally Serviceable Air Distribution System
Please refer to the exploded view drawing and parts list in the Service Manual
supplied with your pump. If you need replacement or additional copies, contact your
local Warren Rupp Distributor, or the Warren Rupp factory Literature Department at
the number shown on page one. To receive the correct manual, you must specify the
MODEL and TYPE information found on the name plate of the pump.
WARNING
Take action to prevent static sparking.
Fire or explosion can result, especially
when handling flammable liquids. The
pump, piping, valves, containers or other
miscellaneous equipment must be
grounded.
BEFORE OPERATION
Before pump operation, inspect all
gasketed fasteners for looseness caused
by gasket creep. Retorque loose fasteners to prevent leakage. Follow recommended torques stated in the card attached to the new pump.
MODELS WITH 1" SUCTION/DISCHARGE OR LARGER,
AND NON-METAL CENTER SECTIONS
The main air valve sleeve and spool set is located in the valve body mounted on
the pump with four hex head capscrews. The valve body assembly is removed from
the pump by removing these four hex head capscrews.
With the valve body assembly off the pump, access to the sleeve and spool set is
made by removing a retaining ring (each end) securing the end cap on the valve body
assembly. With the end caps removed, slide the spool back and forth in the sleeve.
The spool is closely sized to the sleeve and must move freely to allow for proper pump
operation. An accumulation of oil, dirt or other contaminants from the pump’s air
supply, or from a failed diaphragm, may prevent the spool from moving freely. This can
cause the spool to stick in a position that prevents the pump from operating. If this is
the case, the sleeve and spool set should be removed from the valve body for cleaning
and further inspection.
Remove the spool from the sleeve. Using an arbor press or bench vise (with an
improvised mandrel), press the sleeve from the valve body. Take care not to damage
the sleeve. At this point, inspect the o-rings on the sleeve for nicks, tears or abrasions.
Damage of this sort could happen during assembly or servicing. A sheared or cut oring can allow the pump’s compressed air supply to leak or bypass within the air valve
assembly, causing the pump to leak compressed air from the pump air exhaust or not
cycle properly. This is most noticeable at pump dead head or high discharge pressure
conditions. Replace any of these o-rings as required or set up a routine, preventive
maintenance schedule to do so on a regular basis. This practice should include
cleaning the spool and sleeve components with a safety solvent or equivalent,
inspecting for signs of wear or damage, and replacing worn components.
To re-install the sleeve and spool set, lightly lubricate the o-rings on the sleeve with
an o-ring assembly lubricant or lightweight oil (such as 10 wt. air line lubricant). Reinstall one end cap, and retaining ring on the valve body. Using the arbor press or
bench vise that was used in disassembly,
body, without shearing the o-rings. Re-install the spool, opposite end cap and
retaining ring on the valve body. After inspecting and cleaning the gasket surfaces on
the valve body and intermediate, reinstall the valve body on the pump using new
gaskets. Tighten the four hex head capscrews evenly and in an alternating cross
pattern, at 150 in./lbs. (16.94 Newton meters).
carefully press the sleeve back into the valve
Model EB1-M Page 2 520-031-000 8/00
AIR EXHAUST
If a diaphragm fails, the pumped liquid or fumes can enter the air end of the pump,
and be exhausted into the atmosphere. When pumping hazardous or toxic materials,
pipe the exhaust to an appropriate area for safe disposition.
This pump can be submerged if materials of construction are compatible with the
liquid. The air exhaust must be piped above the liquid level. Piping used for the air
exhaust must not be smaller than 1" (2.54 cm). Reducing the pipe size will restrict air
flow and reduce pump performance .When the product source is at a higher level than
the pump (flooded suction), pipe the exhaust higher than the product source to prevent
siphoning spills.
Freezing or icing of the air exhaust can occur under certain temperature and
humidity conditions. Use of an air dryer unit should eliminate most icing problems.
Check exhaust regularly for build-up of ice or contaminants.
PILOT VALVE
The pilot valve assembly is accessed by removing the main air distribution valve
body from the pump and lifting the pilot valve body out of the intermediate housing.
Most problems with the pilot valve can be corrected by replacing the o-rings.
Always grease the spool prior to inserting it into the sleeve. If the sleeve is removed
from the body, reinsertion must be at the chamfered side. Grease the o-rings to slide
the sleeve into the valve body. Securely insert the retaining ring around the sleeve.
When reinserting the pilot valve, push both plungers (located inside the intermediate
bracket) out of the path of the pilot valve spool ends to avoid damage.
PILOT VALVE ACTUATOR
Bushings for the pilot valve actuators are held into inner chambers with retaining
rings. An o-ring is behind each bushing. If the plunger has any sideways motion check
o-rings and bushing for deterioration or wear. The plunger may be removed for
inspection or replacement. First remove the air distribution valve body and the pilot
valve body from the pump. The plungers can be located by looking into the intermediate. It may be necessary to use a fine piece of wire to pull them out. The bushing can
be turned out through the inner chamber by removing the outer chamber assembly.
Replace the bushings if pins have bent.
CAUTION
If a diaphragm fails the pumped product
or fumes can enter the air side of the
pump. This side is exhausted through
the exhaust port (muffler).
When the product is a hazardous or
toxic material, the exhaust should be
piped to an appropriate area for safe
disposition. When the product source is
at a higher level than the pump (flooded
suction), the exhaust should be piped to
a higher level than the product to
prevent spills caused by siphoning.
CAUTION
In the event of diaphragm rupture,
pumped material may enter the air end
of the pump, and be discharged into the
atmosphere. If pumping a product which
is hazardous or toxic, the air exhaust
must be piped to an appropriate area for
safe disposal.
CAUTION
Before maintenance or repair, shut off
the compressed air line, bleed the pressure, and disconnect the air line from
the pump. The discharge line may be
pressurized and must be bled of its
pressure. When used for toxic or aggressive fluids, the pump should
always be flushed clean prior to
disassembly.
CHECK VALVE SERVICING
Need for inspection or service is usually indicated by poor priming, unstable
cycling, reduced performance or the pump’s cycling but not pumping.
Remove the six bolts securing the manifold(s). Inspect the surfaces of both check
valve and seat for wear or damage that could prevent proper sealing. If pump is to prime
properly, valves must seat air tight.
DIAPHRAGM SERVICING
Remove the eight nuts securing the outer diaphragm chamber flange and remove
the chamber. Loosen the capscrew securing the diaphragm and plate to the rod by
leaving the diaphragm engaged with the capscrews around the outer flange, preventing rotation of the rod. DO NOT USE A WRENCH ON THE DIAPHRAGM ROD. FLAWS
ON THE SURFACE MAY DAMAGE BEARINGS AND SEAL.
REASSEMBLY
During reassembly make certain that the rubber bumper is on the rod on each side.
Install the diaphragm with the natural bulge outward as indicated on the diaphragm.
Install the heavier plate on the outside of the diaphragm and make certain that the large
radius side of both plates are toward the diaphragm. Place the sealing washer
between the inner diaphragm plate and the end of the rod. Tighten the capscrew to
approximately 25 ft. lbs. (33.90 Newton meters). Torque while allowing diaphragm to
turn freely with plates. Except for EPDM Rubber, use a lightweight oil between plates
and diaphragm when doing this procedure. Use a wrench on the capscrew of the
opposite side to keep the rod from rotating. If the opposite chamber is assembled, the
rod need not be held.
When reassembling the outer chambers and the manifold, the bolts securing the
manifold flange to the chamber should be snugged prior to tightening the chamber
bolts, to insure that the chamber port flange is square with the manifold flange. Finish
tightening the manifold flange bolts after chamber bolting is secured.
520-031-000 8/00 Model EB1-M Page 3
BETWEEN USES
When used for materials that tend to settle out or transform to solid form, the pump
should be completely flushed after each use, to prevent damage. Product remaining
in the pump between uses could dry out or settle out. This could cause problems with
valves and diaphragms at re-start. In freezing temperatures, the pump must be drained
between uses in all cases.
TROUBLESHOOTING
1. Pump will not cycle
A. Check to make sure the unit has enough pressure to operate and that the air inlet
valve is open.
B. Check the discharge line to insure that the discharge line is neither closed nor
blocked.
C. If the spool in the air distribution valve is not shifting, check the main spool. It must
slide freely.
D. Excessive air leakage in the pump can prevent cycling. This condition will be
evident. Air leakage into the discharge line indicates a ruptured diaphragm. Air
leakage from the exhaust port indicates leakage in the air distribution valve.
E. Check for blockage in the liquid chamber. It can impede movement of diaphragm.
WARNING
Before pump operation, all external
gasketed fasteners must be inspected
for looseness caused by gasket creep
after leaving the factory. Retorque loose
fasteners to insure against leakage.
Follow recommended torques where
called out. (A card is attached to each
new pump stating this fact.)
IMPORTANT
This pump is pressurized internally with
air pressure during operation. Always
make certain that all bolting is in good
condition and that all of the correct
bolting is reinstalled during assembly.
2. Pump cycles but will not pump
A. Suction side of pump pulling in air. Check the suction line for air leaks and be sure
that the end of the suction line is submerged. Check flange bolting. Check valve
flanges and manifold to chamber flange joints.
B. Make certain the suction line or strainer is not plugged. Restriction at the suction
is indicated by a high vacuum reading when a vacuum gauge is installed in the suction
line.
C. Check valves may not be seating properly. To check, remove the suction line and
cover the suction port with your hand. If the unit does not pull a good suction (vacuum),
the check valves should be inspected for proper seating.
D. Static suction lift may be too high. Priming can be improved by elevating the suction
and discharge lines higher than the check valves and pouring liquid into the unit
through the suction inlet. When priming at high suction lifts or with long suction lines
operate the pump at maximum cycle rate.
3. Low performance
A. Capacity is reduced as the discharge pressure increases, as indicated on the
performance curve. Performance capability varies with available inlet air supply.
Check air pressure at the pump inlet when the pump is operating to make certain that
adequate air supply is maintained.
B. Check vacuum at the pump suction. Capacity is reduced as vacuum increases.
Reduced flow rate due to starved suction will be evident when cycle rate can be varied
without change in capacity. This condition will be more prevalent when pumping
viscous liquids. When pumping thick, heavy materials the suction line must be kept
as large in diameter and as short as possible, to keep suction loss minimal.
C. Low flow rate and slow cycling rate indicate restricted flow through the discharge
line. Low flow rate and fast cycling rate indicate restriction in the suction line or air
leakage into suction.
D. Unstable cycling indicates improper check valve seating on one chamber. This
condition is confirmed when unstable cycling repeats consistently on alternate
exhausts. Cycling that is not consistently unstable may indicate partial exhaust
restriction due to freezing and thawing of exhaust air. Use of an anti-freeze lubricant
in an air line lubricator should solve this problem.
For more information, see the Warren Rupp Troubleshooting Guide.
RECOMMENDED
WARREN RUPP
ACCESSORIES
TO MAXIMIZE PUMP
PERFORMANCE:
•Tranquilizer® Surge Suppressor:
For nearly pulse-free flow.
• Warren Rupp Filter/Regulator:
For modular installation and
service convenience.
•Warren Rupp Speed Control:
For manual or programmable
process control. Manual
adjustment or 4-20mA reception.
For more detailed information
on these accessories,
contact your local Warren Rupp
Factory-Authorized Distributor,
or Warren Rupp corporate
headquarters.
WARRANTY
This unit is guaranteed for a period of five years against defective material and
workmanship.
© 2000 Warren Rupp, Inc. All rights reserved.
® Warren Rupp, SandPIPER, and Tranquilizer are registered tradenames of Warren Rupp, Inc.
Printed in U.S.A.
Model EB1-M Page 4 520-031-000 8/00
REPAIR PARTS LIST and DRAWING
ITEM TOTAL
NO. PART NUMBER DESCRIPTION RQD.
1 095-051-551 Body, Spool Valve 1
2 031-039-000 Sleeve & Spool Set 1
3 560-058-360 O-Ring 8
4 165-038-356 Cap, End 2
5 675-043-115 Ring, Retaining 2
6 165-042-157 Cap, Valve Body 1
165-042-551 Cap, Valve Body 1
7 360-056-360 Gasket 1
8 360-057-360 Gasket 1
9 360-058-360 Gasket, Valve Cap 1
10 095-074-000 Pilot Valve Body Assembly
10-A 095-071-551 Pilot Valve Body 1
10-B 755-025-000 Sleeve (with O-Ring) 1
10-C 560-033-360 O-Ring (Sleeve) 4
10-D 775-014-000 Spool (with O-Ring) 1
10-E 560-023-360 O-Ring (Spool) 4
10-F 675-037-080 Retaining Ring 1
11 170-063-330 Capscrew, Hex Head 1
12 901-035-330 Washer, Flat (Aluminum Center) 6
900-005-330 Washer, Flat (Cast Iron Center) 6
13 542-001-330 Nut, Square 1
14 170-033-330 Capscrew, Hex Head 4
15 901-005-330 Washer, Flat 4
16 170-043-330 Capscrew, Hex Head
(Aluminum Center) 6
170-006-330 Capscrew, Hex Head
(Cast Iron Center) 6
17 114-007-157 Bracket, Intermediate 1
114-012-010 Bracket, Intermediate 1
18 196-042-157 Chamber, Inner 1
196-090-010 Chamber, Inner 1
19 196-043-157 Chamber, Inner 1
196-084-010 Chamber, Inner 1
20 560-040-360 O-Ring 2
21 560-001-360 O-Ring 2
22 135-013-162 Bushing 2
23 675-042-115 Ring, Retainer 2
24 620-007-114 Plunger, Actuator 2
25 286-015-604 Diaphragm - Overlay 2
26 070-012-170 Bearing, Sleeve 2
27 720-010-375 Seal, U-Cup 2
28 170-034-330 Capscrew, Hex Head
(Non-overlay) 2
170-059-110 Capscrew, Hex Head
(Strainless Steel, Non-overlay) 2
29 901-012-180 Washer, Sealing 2
* Available in kit form. Order P/N 031-060-000, which also includes
items 7, 8, 9, 24, & 51.
*
1
Model EB1-M
Type 3
Repair Parts shown in bold face (darker)
type are more likely to need replacement
after extended periods of normal use.
They are readily available from most
Warren Rupp distributors. The pump
owner may prefer to maintain a limited
inventory of these parts in his own stock to
reduce repair downtime to a minimum.
IMPORTANT: When ordering repair parts
always furnish pump model number, serial
number and type number.
MATERIAL CODES
The Last 3 Digits of Part Number
000... Assembly, sub-assembly; and some
purchased items
010... Cast Iron
015... Ductile Iron
025... Music Wire
080... Carbon Steel, AISI B-1112
110... Alloy Type 316 Stainless Steel
112... Alloy “C”
114... 303 Stainless Steel
115... 301/302/304 Stainless Steel
120... 416 Stainless Steel (Wrought Martensitic)
148... Hardcoat Anodized Aluminum
150... 6061-T6 Aluminum
151... 6063-T6 Aluminum
154... Almag 35 Aluminum
155 or 156...356-T6 Aluminum
157... Die Cast Aluminum Alloy #380
159... Anodized Aluminum
162... Brass, Yellow, Screw Machine Stock
170... Bronze, Bearing Type, Oil Impregnated
180... Copper Alloy
330... Plated Steel
331... Chrome Plated Steel
332... Electroless Nickel Plated
335... Galvanized Steel
354... Injection Molded #203-40 Santoprene —
Duro 40D +/-5; Color: RED
356... Hytrel
357... Rupplon (Urethane Rubber)
360... Buna-N Rubber. Color coded: RED
363... Viton (Fluorel). Color coded: YELLOW
364... E.P.D.M. Rubber. Color coded: BLUE
365... Neoprene Rubber. Color coded: GREEN
366... Food Grade Nitrile. Color coded: WHITE
375... Fluorinated Nitrile
405... Cellulose Fibre
408... Cork and Neoprene
425... Compressed Fibre
440... Vegetable Fibre
500... Delrin 500
501... Delrin 570
520... Injection Molded PVDF, Natural Color,
Food Grade/USDA Acceptable
540... Nylon
550... Polyethylene
551... Polypropylene
555... PVC (Polyvinyl Chloride)
580... Ryton
600... Teflon (virgin material) Tetrafluoroethylene (TFE)
603... Blue Gylon
604... Teflon — Diaphragm
610... Encapsulated Silicon
611... Teflon Encapsulated Viton
Delrin, Teflon, Hytrel, and Viton are
registered tradenames of E.I. DuPont.
Gylon is a registered tradename of Garlock, Inc.
Warren Rupp, Rupplon, and SandPIPER are registered
tradenames of Warren Rupp, Inc.
Ryton is a registered tradename of Phillips
Chemical Company.
Loctite is a registered tradename of Loctite Corporation.
WARREN RUPP, INC. A Unit of IDEX Corporation • P.O. Box 1568 • Mansfield, Ohio 44901-1568 USA • (419) 524-8388 • Fax (419) 522-7867 • www.warrenrupp.com
520-031-000 8/00 Model EB1-M Page 5
ITEM TOTAL
NO. PART NUMBER DESCRIPTION RQD.
30 900-003-330 Washer, Lock (Non-overlay) 2
31 675-040-360 Ring, Sealing (Aluminum Center) 2
32 685-039-120 Rod, Diaphragm 1
33 132-019-360 Bumper 2
34 612-023-330 Plate, Outer Diaphragm 2
612-023-110 Plate, Outer Diaphragm 2
34A 612-067-110 Plate, Outer Diaphragm (Used with
Teflon Diaphragm Overlay) 2
612-101-112 Plate, Outer Diaphragm Assembly 2
34B 807-048-330 Stud (Use with 612-101-112) 2
35 612-022-330 Plate, Inner Diaphragm 2
36 286-008-365 Diaphragm 2
286-008-363 Diaphragm 2
286-008-360 Diaphragm 2
286-008-364 Diaphragm 2
286-008-356 Diaphragm 2
286-008-354 Diaphragm 2
37 722-045-365 Seat, Valve 4
722-045-360 Seat, Valve 4
722-045-600 Seat, Valve 4
38 050-019-365 Ball, Check Valve 4
050-019-360 Ball, Check Valve 4
050-024-600 Ball, Check Valve 4
39 518-041-010 Manifold, Suction 1
518-041-110 Manifold, Suction 1
518-041-112 Manifold, Suction 1
40 518-042-010 Manifold, Discharge 1
518-042-110 Manifold, Discharge 1
518-042-112 Manifold, Discharge 1
41 170-029-330 Capscrew, Hex Head 28
42 901-039-330 Washer, Flat 12
43 545-004-330 Nut, Hex 16
44 618-003-330 Pipe, Plug 3
45 618-003-330 Pipe, Plug 2
618-003-110 Pipe, Plug (SS Pumps Only) 2
618-003-112 Pipe, Plug 2
46 196-057-010 Chamber, Outer 2
196-057-112 Chamber, Outer 2
196-057-110 Chamber, Outer 2
47 530-018-000 Muffler, Exhaust 1
48 312-044-555 45° Elbow 1
49 538-025-555 Nipple, Close 1
50 560-030-360 O-Ring (SS Pumps Only) 2
560-030-363 O-Ring (SS Pumps Only) 2
51 132-022-360 Bumper, Actuator 2
53 901-035-330 Washer, Flat 1
NOT SHOWN:
031-030-000 Valve Body Assembly
(Consists of items 1, 2, 3, 4 & 5) 1
Repair Parts shown in bold face (darker)
type are more likely to need replacement
after extended periods of normal use.
They are readily available from most
Warren Rupp distributors. The pump
owner may prefer to maintain a limited
inventory of these parts in his own stock to
reduce repair downtime to a minimum.
IMPORTANT: When ordering repair parts
always furnish pump model number, serial
number and type number.
MATERIAL CODES
The Last 3 Digits of Part Number
000... Assembly, sub-assembly; and some
purchased items
010... Cast Iron
015... Ductile Iron
025... Music Wire
080... Carbon Steel, AISI B-1112
110... Alloy Type 316 Stainless Steel
112... Alloy “C”
114... 303 Stainless Steel
115... 301/302/304 Stainless Steel
120... 416 Stainless Steel (Wrought Martensitic)
148... Hardcoat Anodized Aluminum
150... 6061-T6 Aluminum
151... 6063-T6 Aluminum
154... Almag 35 Aluminum
155 or 156...356-T6 Aluminum
157... Die Cast Aluminum Alloy #380
159... Anodized Aluminum
162... Brass, Yellow, Screw Machine Stock
170... Bronze, Bearing Type, Oil Impregnated
180... Copper Alloy
330... Plated Steel
331... Chrome Plated Steel
332... Electroless Nickel Plated
335... Galvanized Steel
354... Injection Molded #203-40 Santoprene —
Duro 40D +/-5; Color: RED
356... Hytrel
357... Rupplon (Urethane Rubber)
360... Buna-N Rubber. Color coded: RED
363... Viton (Fluorel). Color coded: YELLOW
364... E.P.D.M. Rubber. Color coded: BLUE
365... Neoprene Rubber. Color coded: GREEN
366... Food Grade Nitrile. Color coded: WHITE
375... Fluorinated Nitrile
405... Cellulose Fibre
408... Cork and Neoprene
425... Compressed Fibre
440... Vegetable Fibre
500... Delrin 500
501... Delrin 570
520... Injection Molded PVDF, Natural Color,
Food Grade/USDA Acceptable
540... Nylon
550... Polyethylene
551... Polypropylene
555... PVC (Polyvinyl Chloride)
580... Ryton
600... Teflon (virgin material) Tetrafluoroethylene (TFE)
603... Blue Gylon
604... Teflon — Diaphragm
610... Encapsulated Silicon
611... Teflon Encapsulated Viton
Delrin, Teflon, Hytrel, and Viton are
registered tradenames of E.I. DuPont.
Gylon is a registered tradename of Garlock, Inc.
Warren Rupp, Rupplon, and SandPIPER are registered
tradenames of Warren Rupp, Inc.
Ryton is a registered tradename of Phillips
Chemical Company.
Loctite is a registered tradename of Loctite Corporation.
Model EB1-M Page 6 520-031-000 8/00
USE WITH OVERLAY
DIAPHRAGM ONLY
© 2000 Warren Rupp, Inc. All rights reserved.
® Warren Rupp and SandPIPER are registered tradenames of Warren
Rupp, Inc.
Printed in U.S.A.
WARREN RUPP, INC. A Unit of IDEX Corporation • P.O. Box 1568 • Mansfield, Ohio 44901-1568 USA • (419) 524-8388 • Fax (419) 522-7867 • www.warrenrupp.com
USE W/SS UNITS ONLY
520-031-000 8/00 Model EB1-M Page 7
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