Teryair SDP50PPT-BF Instruction Manual

Models Descriptions
SDP50PPT-BF Polypropylene with PTFE tments
SDP50PPT-BF
Read this manual carefully before installing, operating or servicing this equipment. It’s the responsi-
bility of the employer to ensure this manual is read by the operator. Please preserve this manual.
is document is issued with Product Serial No
Operation and Maintenance Guide

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
Table of Contents
3 Pump Nomenclature
3 Operating and Safety Instructions
5 Suggested Lubricants
5 Suggested site selection and installation recommendations
7 Troubleshooting
8 Maintenance
8 Disassembly and Re assembly
11 Bill of Materials for SDP50PPT-BF Pumps
12 Exploded View for SDP 50 Pump
13 Dimensional Data
13 Repair Kits for SDP50PPT-BF Pumps
13 Repair and Replacement Kits
14 Eu Declaration Of Conformity
15 Warranty Certicate

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
Pump Nomenclature
XX XX XX X X X
Air Valve Type Pump Size Material of Construction Material of
Diaphragm
Bolted or
Clamped
Threading on Inlet
and Outlet
DP - Classic
ADP - Advanced
SDP - MaxFlo
06 - 1/4”
AL - Aluminium
SS - Stainless Steel 316L
PP - Polypropylene
CI - Ductile Iron
B - Nitrile
N - Neoprene
S - Santoprene
T - PTFE
V - Viton
H - Hytrel
B - Bolted
C - Clamped
R- NPT
G - BSPT
P - BSPP
F - Flanged
12 - 1/2”
15 - 1/2”
25 - 1”
40 - 1 - 1/2”
50 - 2 “
75- 3”
100 - 4”
Operating and Safety
Instructions
Warning: Static Electricity
Static sparks can cause explosion resulting in
severe injury or death.
Ground the pump and the pump connections
like hoses and containers into which or from
the uid is being transferred. Connect the
grounding wire to any bolt on the pump.
Check continuity of electrical path to ground
at regular intervals.
Consult local building and electrical codes for
grounding requirements where needed.
Use hoses containing a grounding wire.
Warning: Pump Exhaust
In case of a diaphragm failure, u-
id being pumped may spray out from the
exhaust of the pump. is may cause severe
injury depending on the uid being pumped.
If the uid is hazardous, pipe away the
exhaust to a safe remote location using a
generous diameter pipe preferably with a
grounding arrangement, and ret the muer
at the end of this arrangement.
Always wear safety glasses while in the
vicinity of an operating pump.
Warning: Overpressure / Hazardous Pressure
Do not exceed the max supply air pressure of
100 PSI.
Make sure all connected hoses and pipelines
are rated to operate safely with the pressures
generated by pump of 100 PSI.
Do not open or handle pump or hoses while
pressurized.
Disconnect air supply line and relieve
pressure from the system by carefully opening
discharge and supply lines.
Warning: Hazardous Materials
Do not move a pump that contains
hazardous uids trapped inside it. Please
observe prescribed handling and safety codes.
Drain the pump safely, by turning it upside
down and collecting the uid safely, before
moving the pump.
Warning :Explosion
Please check compatibility of uids
intended to be handled with the materials of
construction of the pump. Severe reactions
and explosions may occur if materials are
incompatible. Caution: Chemical
compatibility

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
Please check that the uid being pumped is
compatible with the wetted parts of the pump.
Refer Cole Parmer compatibility (http://www.
coleparmer.in/Chemical-Resistance) guide
for details. Note that chemical compatibility
may change with temperature; take this into
account while selecting pump material.
Caution: Structural support
Please refer gure 1 and ensure that the
piping system is independently supported
and does not load the pump. e pumps are
not designed to take the continuous and oen
pulsating load of a piping system. Important
to use a exible connection between rigid
piping and pump casings.
Caution: Running dry, disconnection of hoses when
not in use
Although these pumps can be run dry for
long periods, it is advisable to avoid this as it
causes unnecessary wear of wearing parts.
Caution: Operator
understanding
Please ensure that all operators have read this
manual and have the required understanding
of safe working practices and are equipped
with safety equipment when working on/
around the pump.
Caution: Using genuine

Use genuine teryair parts to ensure correct
pump operation and maximize life.
 
e Teryair diaphragm pump generates a alternate stroking of the diaphragms against the
uid in the liquid chambers of the Pump. is reciprocatory action is responsible for the uid
being pumped.
It is possible to control the output of the pump by controlling the supply air pressure.
It is also possible to control the output of the pump by throttling action on the uid owing
in the outlet piping by means of a valve. if such a valve is shut completely the pressure in the
discharge piping increases to a point when the pressure at pump discharge equals it and the
pump comes to a stop. is causes no damage to the pump and the pump consumes no more
energy.
Upon opening of the valve, the pump starts reciprocating once again and resumes uid deliv-
ery.
Operating Instructions

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
Caution: Temperature limitations and diaphragm options
PTFE
Excellent choice when pumping highly aggressive
uids such as aromac or chlorinated hydrocarbons,
acids, causcs, ketones and acetates.
Temperature range +4°C to +104°C (+40°F to +220°F)
Suggested Lubricants
Brand Above 27 Deg C ( From 5 Deg C to 27 Deg C Below 5 Deg C
Shell Toona R 72 Toona R 41 Toona R 27
Mobil Almo 529 Almo 527 Almo 525
Esso -- -- -- Arox EP 65 Arox EP 45
Caltex Rando Oil 150 Rando Oil 100 Rando Oil 46
Texaco Regal Oil F Regal Oil PE Regal Oil B
Daltron Silkolene 881 Silkolene 548 Silkolene 773
Burmah Castrol RD Oil 3 RD Oil Light Megna SPX
BP RD 220 HP60C RD150 HP20C RD80 HP10C
Duckham Garnet 7 Garnet 6 Zero Flo 5
Sternol Merlin 87 Merlin 71 Merlin 54
Petrona Purifoc 53 Purifoc 46 Purifoc 32
Chevron Vistac Oil 18X Vistac Oil 19X Vistac Oil 9X
Suggested site selection and installation recommendations
Figure 1

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
Location selection
Pump location must be easily accessible with reasonable
space around for maintenance operations.
Pump dimensional data for each variant is available in
section showing exploded views
Air supply
Compressed air at 90 PSI ( Stroke pumps can take a max
of 100 PSI), free from moisture and having an oil mist is
essential. Use of a lter (50 microns), a lubricator and a
regulator is highly recommended and should be installed
as close as possible to the pump inlet.
Ensure correct grade of oil is used in thelubricator bowl.
Too thick oil may slow down the valve shiing mecha-
nism and aect pump performance. See suggested lubri-
cants on page no 5.
Piping
A minimum number of bends and ttings to be used.
A exible connection between suction, delivery and air
supply piping is highly recommended such that piping
stresses and loads do not transfer to pump housing.
Select piping materials such that chemical compatibility is
maintained with the uid being pumped.
Suction
Ensure that the suction head aer installation is well
within the pumps suction capabilities

Use of supplied muer is recommended to bring pump
operation sounds down to comfortable levels, in case of
hazardous uids handling, please read section of safety
regarding piping away of exhaust see
Warning: Pump Exhaust) earlier in this manual.

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
Troubleshooting
Serial No Description Causes Remedial Action
1 Pump stops and
will not start
Insucient Air Pressure Check air pressure is as recommended
at the pump air inlet
Air Filter Blocked Check if debris has clogged the inlet l-
ter on the FRL unit/pump inlet air valve
( some models have air lter on the air
inlet valve ) and ensure clear passage of
air
Internal damage or excessive wear
on components
roceed to dismantle the pump, examine
component for wear, replace any worn
components, re assemble carefully as
instructed in this manual and re start
the pump.
2 Pumps runs slowly,
poor delivery
Cavitation Check if cavitation is occurring in the
suction side, if so reduce suction vacu-
um by slowing down the pump.
Worn Balls and Seats Check proper sealing action of balls
against seals, these components need to
be replaced as a set if they are worn.
Insucient or wrong lubricant in
the air supply.
Ensure that the lubricant is as per the
recommended chart, a thicker lubricant
oen makes the air valve work sluggish-
ly
Internal damage or excessive wear
on components
Proceed to dismantle the pump, exam-
ine component for wear, replace any
worn components, re assemble carefully
as instructed in this manual and re start
the pump.
3 Pump air valve
frerzes
Excessive moisture in supply air
line.
Ensure that the dew point of the
supplied air is low enough. Install a
air dryer or moisture separator on the
supply line
4 Air bubbles in
pump discharge or
product sprays out
of exhaust vent
Broken Diaphragm
Proceed to dismantle the pump,
examine component for wear, replace
any worn components, re assembly care-
fully as instructed in this manual and re
start the pump
mproper seal between inner
pistons, outer pistons and sha.
Air leakage into product from
balls / seats area
Air sucked into suction pipeline
due to insuciently tight joints on
suction pipeline.

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
Maintenance
Regular inspection and maintenance schedules will greatly enhance the life of the pump and
will ensure a trouble free and safe working environment with little chance of breakdowns.
Follow the instructions clearly in “Disassembly and Reassembly” of the pump and in the
troubleshooting section.
Use genuine Teryair spares and if possible mention the serial number of the pump when
ordering spares.
Always replace elastomers as a set, eg diaphragms, balls and seats.
Disassembly and Re assembly
• Shut o air supply and allow residual Pres-
sure to bleed o.
• Disconnect air supply
• Disconnect suction and discharge piping
• Turn pump upside down allow process u-
id to drain away. If uid is hazardous due
care should be taken.
• Make a mark to indicate the positioning of
each liquid chamber relative to the hous-
ing.
NOTE: Replace worn parts with genuine
TERYAIR parts for reliable performance.
1. Replacement Of Diaphragm
a. Unscrew bolts (23) as shown in the ex-
ploded view and proceed to remove the
outlet (3).
b. Unscrew bolts (22) as shown in the ex-
ploded view and proceed to remove the
inlet (2).
c. Make sure to collect the Ball (12), Ball seat
(13) and Oring (18) and keep it.

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
d. Now unscrew the bolts (25), (26) and Flange
nut (28). is will allow to remove the Outer
chamber (6).
e. Now open the other side Outer chamber (6) in
the same manner.
f. Now Hold one of the outer ange (5) by its
across at and rotate the other.
g. Now hold the sha in a bench vice with proper
packing in order not to damage the sha. Now
remove the second outer ange (5).
h. Now the Bonded diaphragm (11) can be re-
moved and replaced with new one. Make sure
to keep the orientation of diaphragm correct
I.e; PTFE side towards Outer chamber (6) side.
i. Now re-assemble in reverse manner. Insert
the sha assembly in rotating manner into the
center piece assembly.. Some drop of recom-
mend oil must be applied in the center piece to
have ease in assembly.
j. Care must be taken while tting the outer
chamber (6). Make sure to put the bolt (25)
and (26) in proper holes.
2. Replacement of Shaft O rings
a. For removing the rubber rings (9) from center
piece assembly, rst follow the steps a, b, c,
d, e & f from the diaphragm replacement.
is time need to remove both the diaphragm
from any one side and on the other side you
can remove the diaphragm with the sha.
b. Now remove the seals with the help of needle
Nose pliers. Care should be taken not to dam-
age the inner face of bush.
c. Once all the old seals are have been removed,
the inside of the bushing should be cleaned
to ensure no debris is le that may damage to
new seals (Pressurized air is preferable).
d. ese following tools can be used to aid in the
installation of new seals:
• Needle Nose pliers
• Phillips Screwdriver
• Electrical Tape
e. Wrap electrical tape around each leg of the
needle nose pliers (heat shrink may also be used)
. is is done to prevent damaging the inside
portion of the new seals.
f. With a new seal in hand, place the two legs of the
nose pliers inside the seal ring. Open the pliers
as wide as the seal diameter will allow, then two
ngers pull down on the top portion of the seal
to form kidney bean shape.
g. Lightly clamp the pliers together to hold the seal
into the kidney shape. Be sure to pull the seal
into as tight of a kidney shape as possible, this
will allow the seal to travel down the bushing
bore easier.
h. With the seal clamped in the pliers, insert the
seal into the bushing bore and position the bot-
tom of the seal into the correct groove. Once the
bottom of the seal is seated in the groove, release
the clamp pressure on the pliers. is will allow
the seal to partially snap back to its original
shape.
i. Aer the pliers are removed, you will notice a
slight bump in the seal shape. Before the seal
can be properly resized, the bump in the seal
should be removed as much as possible. is can
be done with either the Phillips screw driver or
your nger, apply light pressure to the peak of
the bump. is pressure will cause the bump to
be almost completely eliminated.
j. Lubricate the edge of the sha with specied
lubricant.
k. Slowly insert the sha with rotating motion. is
will complete the resizing of the seals.
l. Perform these steps for the remaining seals.

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Operation and Maintenance Guide SDP 50 Plastic Pump Series

a. Follow the step (a) and (b) of diaphragm
replacement. Replace the ball (12) , seat (13)
and Oring (18) with new one.
4. Replacement of secondary shaft
assembly
a. For removing the secondary sha assembly
from center piece assembly, rst follow the
steps a, b, c, d from the diaphragm replace-
ment and remove the outer chamber (6).
b. Repeat the same procedure to remove the
other side also.
c. Remove the oring (39) from both sides of
secondary sha assembly (41).
d. Now if you see there is a center drill mark on
one side of the secondary sha assembly (41).
Pull the secondary sha assembly (41) from
this side only.
e. During assembly make sure to push the sec-
ondary sha assembly (41) from the plain side
only into the sleeve (8).
5. Replacement of air valve and oring
of end cap
a. Remove the circlip (38) with the help of a
circlip opener. Now use a Bolt with M6 thread
to pull the end cap (31) with its oring (33) out
of the air valve body (14).
b. Use the same M6 bolt to pull the air piston
assembly (40) with all its seals. is piston
assembly (40)need to replace as a single piece.
c. In order to remove the end plug assembly (42)
with its seals, remove the screw with washer
(37) and push it. End plug assembly (42) also
need to be replace with seals.
d. d) Its recommend to change both the orings
(33) and (32) during replacing of internal
parts.
• Note: Some part of air valve assembly can be
done with out removing it from the center
piece. In case to replace the whole air valve
assembly unscrew the bolts (35). Refer g-
ure on page no. 9.

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
ITEM
NO.
PART NUMBER DESCRIPTION QTY "REPAIR KIT
203 97 05"
"REPLACEMENT KIT
203 97 01"
1 203 10 01 CENTRE PIECE 1
1A 203 10 02 AIR DISC 2
2 205 08 03 INLET 1
3 205 08 02 OUTLET 1
4 203 08 06 INNER FLANGE 2
5 203 08 04 OUTER FLANGE 2
6 205 08 04 LIQUID CHAMBER 2
7 203 21 01 PRIMARY SHAFT 1
8 203 21 03 SLEEVE 1
9 200 40 13 SHAFT SEAL 2 2
10 203 40 01 GASKET 2
11 203 60 01 BONDED DIAPHRAGM 2 2
12 205 36 19 PTFE BALL 4 4
13 203 36 02 VALVE BALL SEAT 4 4
14 203 10 03 AIR VALVE BODY 1 1
15 203 40 08 GASKET 1 1 1
16 203 10 04 AIR VALVE BODY COVER 1 1
17 203 40 04 GASKET 1 1 1
18 203 40 02V O' RING 4 4
19 203 40 03 O' RING 4 4
20 203 90 01 HEX BOLT 8
21 210 90 36 PLAIN WASHER 8
22 203 90 04S HEX BOLT 8
23 203 90 05S HEX BOLT 8
24 612 90 40S PLAIN WASHER 16
25 203 90 06S HEX BOLT 4
26 203 90 07S HEX BOLT 12
27 203 90 03S PLAIN WASHER 16
28 203 90 08S FLANGE NUT 16
29 203 90 11S SQUARE NUT 4
30 150 97 35 MUFFLER 1
31 203 08 03 END CAP 1 1
32 163 40 01 O RING 1 1 1
33 203 40 05 O RING 1 1 1
34 171 27 19S S.H.C.S. 3 3
35 203 90 10S H.S.C.S. 4 4
36 612 90 11S PLAIN WASHER 7 7
37 203 90 15A EXT. CIRCLIP 1 1
38 203 90 09 INT. CIRCLIP 1 1 1
39 022 90 30 O' RING 2 2
40 203 98 01 SPOOL ASSEMBLY 1 1 1
41 203 98 02 SECONDARY SHAFT ASSLY. 1 1
42 203 98 03 END PLUG ASSLY. 1 1 1
Bill of Materials for SDP50PPT-BF Pumps

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
Exploded View for SDP 50 Pump

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
Dimensional Data
SDP50PPT-BF

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
EU DECLARATION OF CONFORMITY
We hereby certify that the Listed Product stipulated below comply with all relevant provisions of the machinery direc-
tive (2006/42/EC) and the national laws and regulations adopting this directive.
Description : AIR OPERATED DOUBLE DIAPHRAGM PUMP
Model Number : SDP 50 Series
Date :
Serial Number :
Is in conformity with the provisions of the following European Directives: (2006/42/EC) Machinery Safety and Har-
monized standards
ISO 12100-1: 2010: Safety of Machinery –general Principles for Design –Risk Assessment and Risk Reduction.
Registered Oce : 416 Gundecha Industrial Complex, Akuril Road,
Kandivali East, Mumbai – 400101, Maharashtra, India.
Web site : www.teryair.com
Works : A-1, Tirupati Udyog Nagar, Sativali Road, Vasai East,
Palghar – 401208, Maharashtra, India.
CE certication registration no – C E 16831
Issued by – BMQR Certications Pvt Ltd.
www.cemarking-india.com
Valid Till – 03/11/2025
Signed for and on behalf of
TERYAIR EQUIPMENT PVT. LTD. Place of Issue : Vasai
Date :

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
Warranty Certicate
Every product manufactured by Teryair
is built to meet the highest standards of quality.
Teryair warrants that the Products, accessories and parts manufactured or supplied by the company be
free from defects in material and workmanship for a period of six months from date of Teryair authorized
dealer invoice to customer, or one year from date of Teryair invoice to dealer, whichever is earlier. Failure
due to normal wear, misapplication, or abuse is, of course, excluded from this warranty.
Since the use of Teryair products and parts is beyond our control, Teryair cannot guarantee the suitability
of any product or part for a particular application and Teryair shall not be liable for any consequential dam-
age or expense arising from the use or misuse of its products on any application. Teryair does not war-
ranty bought out products or components such as electric motors and hardware but will assist in directing
warranty queries to the dealer/manufacturer responsible. Teryair responsibility is limited solely to replace-
ment or repair of defective Teryair products or components.
Dealer/End User shall have no right or remedy and Teryair shall have no liability or obligation under the warranty, if: (i) a Product is altered,
changed, modied or tampered with in any way, (ii) a Product is damaged after deposit with the transporter for shipment; (iii) a Product is not
properly preserved, packaged, stored, processed or handled after receipt; (iv) a Product is not used and maintained in accordance with Teryair’s
recommended operating and maintenance manuals, instructions and procedures, if any; (v) a Product is not properly incorporated or installed in,
or not properly combined with, an Other Product; (vi) the issue with a Product is directly or indirectly attributable to, or directly or indirectly results
from or arises out of, a failure, substandard performance or other issue with another product, material, component or part not supplied by Teryair;
(vii) the issue with a Product is directly or indirectly attributable to, or directly or indirectly results from or arises out of, compliance with any de-
sign, specication or other specic requirement of Dealer/End User; (viii) a Product is used in a manner, with a substance or for a purpose other
than the normal manner, substance and purpose for which it is intended or is otherwise subjected to abnormal use or service; (ix) a Product is
subjected to a power surge, brown out or other similar occurrence; (x) the issue with a Product is directly or indirectly attributable to, or directly or
indirectly results from or arises out of, normal wear and tear of such Product (including, without limitation, things such as worn seals, diaphragms,
balls, O rings, gaskets, chisels, cutters, hoses and other such wearing components; (xi) the issue with a Product is directly or indirectly.
Model Number : SDP 50
Serial Numbar :
Dated : Ajay Bhagat, Q.A. Manager
(Company Seal)

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Operation and Maintenance Guide SDP 50 Plastic Pump Series
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