Teryair DP 12 Metal Series Instruction Manual

Operation and Maintenance Guide
DP 12 Aluminum Construction, All variants
Models Descriptions
DP 12 AL N/B/T Aluminum with Neoprene, Buna N and PTFE Fitments
DP 12 AL N/B/T
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

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Operation and Maintenance Guide DP 12 Metal Series
Table of Contents
3 Pump Nomenclature
3 OperangandSafetyInstrucons
4 OperangInstrucons
5 SuggestedLubricants
6 Suggestedsiteseleconandinstallaonrecommendaons
7 Troubleshoong
8 Maintenance
8 DiassemblyandRe-assembly
10 BillofMaterialsforDP12ALNPumps
11 ExplodedViewforDP12Pump
12 BillofMaterialsforDP12ALBPumps
13 BillofMaterialsforDP12ALTPumps
14 DimensionalData
14 AirValveReplacementKits
14 RepairKits
15 RepairandReplacementKits
16 TestCercateOfMaterials,Performance
17 EuDeclaraonOfConformity
18 SummeryForTheAtexRangForTeryairAoddModels
20 WarrantyCercate

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Operation and Maintenance Guide DP 12 Metal 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 Instruc-
tions
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, uid 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
125 PSI.
Make sure all connected hoses and
pipelines are rated to operate safely with the
pressures generated by pump of 125 PSI. Do
not open or handle pump or hoses while pres-
surized.
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 pre-
scribed 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. Cau-
tion: Chemical compatibility

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Operation and Maintenance Guide DP 12 Metal Series
e Teryair Stroke 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 dis-
charge 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 delivery.
Operating Instructions
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-Re-
sistance) 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 be-
tween 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 un-
derstanding of safe working practices and
are equipped with safety equipment when
working on/around the pump.
Caution: Using genuine
teryair fittings & spares
Use genuine teryair parts to ensure correct
pump operation and maximize life.
Warning
Conditions for Certification
1. Control of Environmental humidity to
minimize the generation of the static
electricity.
2. Protection from direct airow causing a
charge transfer.
3. Touch with an insulating object to avoid
electrostatic charge hazard.
4. Clean the surface with damp cloth only to
avoid electrostatic charge hazard.

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Operation and Maintenance Guide DP 12 Metal Series
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
Caution: Temperature limitations and diaphragm options
Neoprene
Anexcellentgeneral-purposediaphragmforusein
non-aggressiveapplicaonssuchaswater-basedslur-
ries,wellwaterorseawater.Exhibitsexcellentex
lifeandlowcost.Temperaturerange-18°Cto+93°C
(0°Fto+200°F)
Nitile
Excellentforapplicaonsinvolvingpetroleum/
oil-baseduidssuchasleadedgasolines,fueloils,
non-synthechydraulicoils,kerosene,turpenneand
motoroils.
Temperaturerange-12°Cto+82°C(+10°Fto+180°F)
Santoprene
Goodabrasionresistance.Lowcost.Canhandlemild
acidsandalkaliswell.Excellentlowcostalternave
tope.ExcellentsuconcapabilitesExcellentgeneral
purposediaphragm.
Temperaturerange-40°Cto+107°C(-40Fto+225°F)
Hytrel Goodabrasionresistance.Lowcost..Excellent
suconcapabilitesGoodgeneralpurposediaphragm.
Temperaturerange-29°Cto+104°C(-20°Fto+220°F)
Viton
Excellentforuseinapplicaonsrequiringextremely
hottemperatures.Mayalsobeusedwithaggressive
uidssuchasaromacorchlorinatedhydrocarbons
andhighlyaggressiveacids.Especiallywherehigh
suconliisimportant.
Temperaturerange-40°Cto+177°C(-40°Fto+350°F)
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)

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Operation and Maintenance Guide DP 12 Metal Series
Suggested site selection and installation recommendations
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 125PSI), 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
lubricants on page no 5
Piping
see section on safety if used in hazardous area)
See Figure 1.
Suction side ½ inch or larger, non-collapsible
Delivery side ½ inch or larger.
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 with-
in the pumps suction capabilities
Muffler
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 DP 12 Metal Series
Troubleshooting
Serial No Description Causes Remedial Action
1Pump 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.
2Pumps 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.
3Pump 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
4Air bubbles in
pump discharge or
product sprays out
of exhaust vent
Broken Diaphragm
Proceed to dismantle the pump, exam-
ine component for wear, replace any
worn components, re assembly carefully
as instructed in this manual and re start
the pump
Improper seal between inner pis-
tons, 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 DP 12 Metal Series
1) Replacement of Diaphragm
a. Unscrew bolt (31) along with washer (30) & spring
washer (29) as shown in the exploded view and proceed
to remove outlet (3)& inlet (2). Examine the balls, seals
(and seats) for wear.
b. Now unscrew hex socket head bolt (28) & washer
(27) of any one side and proceed to remove the outer
chamber (6).Now repeat the same procedure to remove
the second outer chamber (6).
c. Now with the help of two spanner hold one of the
across at of one outer ange (5) and rotate the second
outer ange (5) to disassemble it from the sha assem-
bly. Remove the diaphragm (14), & inner ange (4).
* For SST model hold one of the across at of hex. Bolt
(5A) and rotate the second bolt (5A) to disassemble
it from the sha assembly. Remove PTFE diaphragm
(14A), diaphragm (14), & inner ange (4).
d. Now remove the circlip (13) with the help of Nose
plier and remove the collar (11), O-ring (12).
e. Now push the other side of sha (7). Hold the sha
(7) in a vice with proper packing. Care must be taken
not to damage the sha outer surface. Now remove the
outer ange (5) with spanner and remove the dia-
phragm (14)& inner ange(4) respectively.
*For ALT/SST series remove the bolt (5A) and remove
the outer ange (5), Backup diaphragm (14),Inner spac-
Diassembly and Re-assembly
Maintenance
Regular inspection and maintenance schedules will greatly enhance the life of the pump and will en-
sure 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.

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Operation and Maintenance Guide DP 12 Metal Series
er (7A)& PTFE diaphragm (14A).
f. Now replace the diaphragms (14). Ensure that diaphragm
orientation is correct, i.e. For ALB/ ALN the sticker side of
the diaphragm (14) to be located in the outer chamber (6).
* For ALT & SST model the PTFE diaphragm (14A) to be
located in outer chamber (6) side.
g. Lubricate the edge of the sha (7) with specied lubricant.
Slowly insert the sha with rotating motion. Care should be
taken not to damage the backup rings (8).
h. Once the half sha open portion comes out of the bush,
follow the procedure in reverse manner as described in part
(a) & (b) and assemble the pump.
2) Replacement of Shaft O rings
a. For removing the seals from sha, rst follow the step a, b,
c, d & e from the diaphragm replacement.
b. Remove the circlip (13) with the help of nose pliers. is
will allow to remove the sha (7) with seals along with the
collar (11) and O-rings (12).
c. Now pull out the sha (7) from the circlip open side of
sha housing (1).
d. Now remove the PTFE rings (9)& backup ring (8) from
the sha (7) with the help of needle Nose pliers.
e. Once all the old seals are have been removed, the inside
of the bush (located in sha housing) should be cleaned to
ensure no debris is le that may damage to new seals (Pres-
surized air is preferable).
f. Now t new seals in following manner. First back up rings
(8) and later PTFE rings (9).
g. Lubricate the inner portion of bush with specied lubri-
cant.
h. Slowly insert the sha with rotating motion. is will
complete the resizing of the seals.
i. Now replace the O-ring (12), (10)and complete the assem-
bly procedure in reverse manner.
3) Replacement of Ball seat& Ball
a. Follow the step (a) of diaphragm replacement. Replace the
o-ring (18), ball cage (17),ball (16)&ball seat (15) with new
one.
4) Replacement of air valve and oring
of end cap
a. Unscrew bolt (34) from the sha housing (1). Remove the
air valve assembly along with the bolt (32).
b. Now remove the bolt (32) and washer (30) from both
ends. Now remove the end cap (25) & (20) from both ends.
Now slide out the air valve (22). Change the O-ring (21) of
both end caps. Remove the pin (23) and replace the o ring
(24).
c. Now remove and replace the ring (9) and backup ring (8)
from the air valve (22).Lubricate the inner portion of air
valve body (19) before assembling the air valve (22).
d. Now assemble the rest of the parts in reverse manner
e. You can also change the gasket (26) for air valve body.

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Operation and Maintenance Guide DP 12 Metal Series
ITEM NO PART
NUMBER
DESCRIPTION BG
MODELS
BP
MODELS
36 171 10 06 ADAPTOR 1/2” BSPT(F) 2 -
36 171 10 10 ADAPTOR 1/2” BSPP(F) - 2
Above all parts are common for BR (NPT), BG (BSPT) & BP (BSPP) Pumps.
e additional parts for BR (NPT), BG (BSPT) & BP (BSPP) pumps model are as follows
Note.
Bill of Materials for DP 12 ALN Pumps
Illustration
Number
Part Number Description DP12ALN
1 171 10 05 COMBINED SHAFT HOUSING 1
2 171 10 01 INLET BASE 1
3 171 10 03 OUTLET 1
4 171 20 07 INNER FLANGE 2
5 171 10 04 OUTER FLANGE WITH BOLT 2
6 171 10 02 OUTER CHAMBER SIDE 2
7 171 21 08 SHAFT 1
8 171 40 42 O RING 4
9 171 36 28T O RING 4
10 171 40 40 O RING 2
11 171 25 14 COLLAR 2
12 101 40 03 O RING 2
13 050 90 23 INT CIRCLIP 2
14 171 40 37N DIAPHRAGM (NEOPRENE) 2
15 171 20 16A VALVE SEAT (BOTTOM) 4
16 171 36 31T VALVE BALL (PTFE) 4
17 171 20 17A VALVE SEAT (CROSS) 4
18 171 40 39N O RING 4
19 171 15 41 AIR VALVE BODY 1
20 171 10 46BL END CAP (LOWER) 1
21 171 40 34 O RING 2
22 171 40 36 NYLON AIR VALVE 1
23 171 25 11 PIN FOR UPPER END CAP 1
24 171 40 35 O RING 2
25 171 10 45BL END CAP (UPPER) 1
26 171 40 38 GASKET 1
27 171 90 50 PLAIN WASHER 12
28 200 90 68 ALLEN BOLT 12
29 500 90 48 SPRING WASHER 8
30 298 00 90 PLAIN WASHER 12
31 500 90 41 ALLEN BOLT 8
32 500 90 51 ALLEN BOLT 4
33 171 25 12 AIR INLET NIPPLE 1
34 171 90 51 ALLEN BOLT 2
35 171 97 44 SILENCER 1

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Operation and Maintenance Guide DP 12 Metal Series
Exploded View for DP 12 Pump

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Page 12
Operation and Maintenance Guide DP 12 Metal Series
ITEM NO PART
NUMBER
DESCRIPTION BG
MODELS
BP
MODELS
36 171 10 06 ADAPTOR 1/2” BSPT(F) 2 -
36 171 10 10 ADAPTOR 1/2” BSPP(F) - 2
Above all parts are common for BR (NPT), BG (BSPT) & BP (BSPP) Pumps.
e additional parts for BR (NPT), BG (BSPT) & BP (BSPP) pumps model are as follows
Note.
Bill of Materials for DP 12 ALB Pumps
Illustration
Number
Part Number Description DP12ALB
1 171 10 05 COMBINED SHAFT HOUSING 1
2 171 10 01 INLET BASE 1
3 171 10 03 OUTLET 1
4 171 20 07 INNER FLANGE 2
5 171 10 04 OUTER FLANGE WITH BOLT 2
6 171 10 02 OUTER CHAMBER SIDE 2
7 171 21 08 SHAFT 1
8 171 40 42 O RING 4
9 171 36 28T O RING 4
10 171 40 40 O RING 2
11 171 25 14 COLLAR 2
12 101 40 03 O RING 2
13 050 90 23 INT CIRCLIP 2
14 171 40 37B DIAPHRAGM (BUNA) 2
15 171 20 16A VALVE SEAT (BOTTOM) 4
16 171 36 31T VALVE BALL (PTFE) 4
17 171 20 17A VALVE SEAT (CROSS) 4
18 171 40 39 O RING 4
19 171 15 41 AIR VALVE BODY 1
20 171 10 46BL END CAP (LOWER) 1
21 171 40 34 O RING 2
22 171 40 36 NYLON AIR VALVE 1
23 171 25 11 PIN FOR UPPER END CAP 1
24 171 40 35 O RING 2
25 171 10 45BL END CAP (UPPER) 1
26 171 40 38 GASKET 1
27 171 90 50 PLAIN WASHER 12
28 200 90 68 ALLEN BOLT 12
29 500 90 48 SPRING WASHER 8
30 298 00 90 PLAIN WASHER 12
31 500 90 41 ALLEN BOLT 8
32 500 90 51 ALLEN BOLT 4
33 171 25 12 AIR INLET NIPPLE 1
34 171 90 51 ALLEN BOLT 2
35 171 97 44 SILENCER 1

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Operation and Maintenance Guide DP 12 Metal Series
Bill of Materials for DP 12 ALT Pumps
Illustration
Number
Part Number Description DP12ALT
1 171 10 05 COMBINED SHAFT HOUSING 1
2 171 10 01 INLET BASE 1
3 171 10 03 OUTLET 1
4 171 20 07 INNER FLANGE 2
5 171 10 04 OUTER FLANGE WITH BOLT 2
6 171 10 02 OUTER CHAMBER SIDE 2
7 171 21 08 SHAFT 1
8 171 40 42 O RING 4
9 171 36 28T O RING 4
10 171 40 40 O RING 2
11 171 25 14 COLLAR 2
12 101 40 03 O RING 2
13 050 90 23 INT CIRCLIP 2
14 171 40 37N DIAPHRAGM (NEOPRENE) 2
14A 171 36 30T DIAPHRAGM (PTFE) 2
15 171 20 16A VALVE SEAT (BOTTOM) 4
16 171 36 31T VALVE BALL (PTFE) 4
17 171 20 17A VALVE SEAT (CROSS) 4
18 171 36 29T ENCL. O RING 4
19 171 15 41 AIR VALVE BODY 1
20 171 10 46BL END CAP (LOWER) 1
21 171 40 34 O RING 2
22 171 40 36 NYLON AIR VALVE 1
23 171 25 11 PIN FOR UPPER END CAP 1
24 171 40 35 O RING 2
25 171 10 45BL END CAP (UPPER) 1
26 171 40 38 GASKET 1
27 171 90 50 PLAIN WASHER 12
28 200 90 68 ALLEN BOLT 12
29 500 90 48 SPRING WASHER 8
30 298 00 90 PLAIN WASHER 12
31 500 90 41 ALLEN BOLT 8
32 500 90 51 ALLEN BOLT 4
33 171 25 12 AIR INLET NIPPLE 1
34 171 90 51 ALLEN BOLT 2
35 171 97 44 SILENCER 1
ITEM NO PART
NUMBER
DESCRIPTION BG
MODELS
BP
MODELS
36 171 10 06 ADAPTOR 1/2” BSPT(F) 2 -
36 171 10 10 ADAPTOR 1/2” BSPP(F) - 2
Above all parts are common for BR (NPT), BG (BSPT) & BP (BSPP) Pumps.
e additional parts for BR (NPT), BG (BSPT) & BP (BSPP) pumps model are as follows
Note.

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Operation and Maintenance Guide DP 12 Metal Series
Dimensional Data
DP 12 AL N/B/T
Air Valve Replacement Kits
Replacement KIT Ordering
No Suitable for
171 97 41
NPT Fitted ALX Pumps With Any Diaphragm Variant
BSPT Fitted ALX Pumps With Any Diaphragm Variant
BSPP Fitted ALX Pumps With Any Diaphragm Variant
Repair KIT Ordering No Suitable for
171 97 52 DP 12 ALN
171 97 52B DP 12 ALB
171 97 52T DP 12 ALT
Repair Kits

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Operation and Maintenance Guide DP 12 Metal Series
Repair and Replacement Kits
Illu. No. Part No. Description
ALX Pumps
1719741 replacement Kit
Repair Kit 1719752B
Repair Kit 1719752
Repair Kit 1719752T
8 171 40 42 O RING 4 4 4 4
9 171 36 28T O RING 4 4 4 4
14 171 40 37B DIAPHRAGM (BUNA) 2
14 171 40 37N DIAPHRAGM (NEOPRENE) 2 2
14A 171 36 30T DIAPHRAGM (PTFE) 2
15 171 20 16A VALVE SEAT (BOTTOM) 4 4 4
16 171 36 31T VALVE BALL (PTFE) 4 4 4
17 171 20 17A VALVE SEAT (CROSS) 4 4 4
18 171 40 39 O RING 4
18 171 40 39N O RING 4
18 171 36 29T ENCL. O RING 4
19 171 15 41 AIR VALVE BODY 1
20 171 10 46BL END CAP (LOWER) 1 1 1 1
21 171 40 34 O RING 2 2 2 2
22 171 40 36 NYLON AIR VALVE 1 1 1 1
23 171 25 11 PIN FOR UPPER END CAP 1 1 1 1
24 171 40 35 O RING 2 2 2 2
25 171 10 45BL END CAP (UPPER) 1 1 1 1
26 171 40 38 GASKET 1 1 1 1
30 298 00 90 PLAIN WASHER 4 4 4 4
31 500 90 41 ALLEN BOLT
32 500 90 51 ALLEN BOLT 4 4 4 4
33 171 25 12 AIR INLET NIPPLE 1
34 171 90 51 ALLEN BOLT 2

FF-MM-295-REV - 02
Page 16
Operation and Maintenance Guide DP 12 Metal Series
TEST CERTIFICATE OF MATERIALS, PERFORMANCE
DATE :
MODEL NUMBER :
PART DESCRIPTION & S.NO. :
We Hereby Certify at e Above Referenced Product Has Tested And Inspected In Accordance With Our Standard Test Proce-
dures And Meets e Specications For Material And Performance Values As Published In Our Literature. We Further Certify at
e Product Has Been Given Our Standard Factory Test. is Product Is Certied To Be Produced In Our Factory, And Is Of Cur-
rent Production. It Has Been Produced In A Workmanlike Manner And Meets All Quality And Performance Standards Established
By e Company
Authorised Signatory
Q.A Manager
Place - Vasai, Maharastra

FF-MM-295-REV - 02
Page 17
Operation and Maintenance Guide DP 12 Metal Series
EU DECLARATION OF CONFORMITY
Object of declaration
PRODUCT : AIR OPERATED DOUBLE DIAPHRAGM PUMP
MODEL :
MANUFACTURER’S NAME : TERYAIR EQUIPMENT PVT. LTD.
ADDRESS : SITE - 1 : BUILDING A - 1/2, 102 TO 105 & BUILDING C 12 & 13,
TIRUPATI UDYOG NAGAR, SATIVALI ROAD, VASAI (E),
PALGHAR: 401208.
SITE - 2: AUGUSTINE - II, COLACO INDUSTRIAL COMPLEX,
GALA NO - 101 TO 107, SATIVALI ROAD, VILLAGE WALIV,
VASAI (E), PALGHAR: 401208
To provide presumption of conformity in order to directive 2014/34/EU; the following harmonized standards and/or
other normative documents as referenced within the following ocial journals are applied:
APPLICABLE DIRECTIVE: ATEX DIRECTIVE (2014/34/EU)
APPLICABE STANDARDS:
EN ISO 80079-36: 2016 : Explosive atmospheres —Part 36: Non-electrical equipment for explosive
atmospheres —Basic method and requirements.
EN ISO 80079-37:2016 : Explosive atmospheres —Part 37: Non-electrical equipment for explosive
atmospheres —Non- electrical type of protection constructional safety ‘c’, control
of ignition sources ‘b’, liquid immersion ‘k’.
Notied body to whom Technical le has logged with: - Technicka Inspekcia (Ref: 1354).
DECLARATION: - TERYAIR EQUIPMENT PVT. LTD., declare that under our sole responsibility for the supply of
the product dened above, the said product complies with all the applicable Directives, Regulations and all essential
Health and Safety requirements applying to it.
I, the undersigned, hereby declare that the product specied above conforms to the above standard(s).
ATEX MARKING APPLIED :
Please Refer ATEX Rating for Teryair Aodd Models Table
Signed for and on behalf of
TERYAIR EQUIPMENT PVT. LTD. Place of Issue:

FF-MM-295-REV - 02
Page 18
Operation and Maintenance Guide DP 12 Metal Series
SUMMERY FOR THE ATEX RATING FOR TERYAIR AODD MODELS
Pump
Size Series Wetted Materials Center Section Dipharagm Materials ATEX Rating
06
(1/4") SDP
Aluminium Aluminium
Neoprene ll 2 GD Ex h IIC T6 Gb
Ex h IIIC T85⁰C Db (IP65)
Buna-N
Viton-FKM ll 2 GD Ex h IIC T3 Gb
Ex h IIIC T200⁰C Db (IP65)
Sentoprene ll 2 GD Ex h IIC T5 Gb
Ex h IIIC T100⁰C Db (IP65)
Hytrel
PTFE
Stainless Steel Stainless Steel
Neoprene ll 2 GD Ex h IIC T6 Gb
Ex h IIIC T85⁰C Db
I M2 Ex h I Mb (IP65)
Buna-N
Viton-FKM
ll 2 GD Ex h IIC T3 Gb
Ex h IIIC T200⁰C Db (IP65)
I M2 Ex h I Mb (IP65)
Sentoprene ll 2 GD Ex h IIC T5 Gb
Ex h IIIC T100⁰C Db (IP65)
I M2 Ex h I Mb (IP65)
Hytrel
PTFE
12
(1/2")
DP/SDP Aluminium Aluminium
Neoprene ll 2 GD Ex h IIC T6 Gb
Ex h IIIC T85⁰C Db (IP65)
Buna-N
Viton-FKM ll 2 GD Ex h IIC T3 Gb
Ex h IIIC T200⁰C Db (IP65)
Sentoprene ll 2 GD Ex h IIC T5 Gb
Ex h IIIC T100⁰C Db (IP65)
Hytrel
PTFE
SDP Stainless Steel Stainless Steel
Neoprene ll 2 GD Ex h IIC T6 Gb
Ex h IIIC T85⁰C Db
I M2 Ex h I Mb (IP65)
Buna-N
Viton-FKM
ll 2 GD Ex h IIC T3 Gb
Ex h IIIC T200⁰C Db (IP65)
I M2 Ex h I Mb (IP65)
Sentoprene ll 2 GD Ex h IIC T5 Gb
Ex h IIIC T100⁰C Db (IP65)
I M2 Ex h I Mb (IP65)
Hytrel
PTFE
25 (1") DP /
SDP
Aluminium / Stain-
less Steel Aluminium
Neoprene ll 2 GD Ex h IIC T6 Gb
Ex h IIIC T85⁰C Db (IP65)
Buna-N
Viton-FKM ll 2 GD Ex h IIC T3 Gb
Ex h IIIC T200⁰C Db (IP65)
Sentoprene ll 2 GD Ex h IIC T5 Gb
Ex h IIIC T100⁰C Db (IP65)
Hytrel
PTFE

FF-MM-295-REV - 02
Page 19
Operation and Maintenance Guide DP 12 Metal Series
SUMMERY FOR THE ATEX RATING FOR TERYAIR AODD MODELS
Pump
Size Series Wetted Materials Center Section Dipharagm Materials ATEX Rating
40
(1-1/2")
DP /
SDP
Aluminium / Stain-
less Steel Aluminium
Neoprene ll 2 GD Ex h IIC T6 Gb
Ex h IIIC T85⁰C Db (IP65)
Buna-N
Viton-FKM ll 2 GD Ex h IIC T3 Gb
Ex h IIIC T200⁰C Db (IP65)
Sentoprene ll 2 GD Ex h IIC T5 Gb
Ex h IIIC T100⁰C Db (IP65)
Hytrel
PTFE
50 (2")
DP /
SDP
Aluminium / Stain-
less Steel Aluminium
Neoprene ll 2 GD Ex h IIC T6 Gb
Ex h IIIC T85⁰C Db (IP65)
Buna-N
Viton-FKM ll 2 GD Ex h IIC T3 Gb
Ex h IIIC T200⁰C Db (IP65)
Sentoprene ll 2 GD Ex h IIC T5 Gb
Ex h IIIC T100⁰C Db (IP65)
Hytrel
PTFE
SDP Cast Iron Cast Iron
Neoprene ll 2 GD Ex h IIC T6 Gb
Ex h IIIC T85⁰C Db
I M2 Ex h I Mb (IP65)
Buna-N
Viton-FKM
"ll 2 GD Ex h IIC T3 Gb
Ex h IIIC T200⁰C Db (IP65)
I M2 Ex h I Mb (IP65)"
Sentoprene ll 2 GD Ex h IIC T5 Gb
Ex h IIIC T100⁰C Db (IP65)
I M2 Ex h I Mb (IP65)
Hytrel
PTFE
75 (3")
DP /
SDP Aluminium Aluminium
Neoprene ll 2 GD Ex h IIC T6 Gb
Ex h IIIC T85⁰C Db (IP65)
Buna-N
Viton-FKM ll 2 GD Ex h IIC T3 Gb
Ex h IIIC T200⁰C Db (IP65)
Sentoprene ll 2 GD Ex h IIC T5 Gb
Ex h IIIC T100⁰C Db (IP65)
Hytrel
PTFE
SDP Cast Iron Cast Iron
Neoprene ll 2 GD Ex h IIC T6 Gb
Ex h IIIC T85⁰C Db
I M2 Ex h I Mb (IP65)
Buna-N
Viton-FKM
ll 2 GD Ex h IIC T3 Gb
Ex h IIIC T200⁰C Db (IP65)
I M2 Ex h I Mb (IP65)
Sentoprene ll 2 GD Ex h IIC T5 Gb
Ex h IIIC T100⁰C Db (IP65)
I M2 Ex h I Mb (IP65)
Hytrel
PTFE

FF-MM-295-REV - 02
Page 20
Operation and Maintenance Guide DP 12 Metal Series
Warranty Certificate
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 damage or expense arising from the use or
misuse of its products on any application. Teryair does not warranty 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 replacement 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, modified 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 design, specification or other specific 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.
Dated :
Product Model Number :
Product Serial Numbar : Ajay Bhagat, Q.A. Manager
(Company Seal)