Sera airPUMP AP025 Manuale utente
OPERATING INSTRUCTIONS
TRANSLATION OF THE ORIGINAL OPERATING INSTRUCTIONS EN
AIR OPERATED DIAPHRAGM PUMP
airPUMP AP025 (plastic design)
airPUMP AP025 (plastic)
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airPUMP AP025 (plastic)
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TABLE OF CONTENT
IMPORTANT INFORMATION ����������������������������������������������������������������������������������������������������������������4
Export Information ................................................................................................................4
Chemical Reaction Disclaimer.................................................................................................4
Unpacking & Inspection ......................................................................................................... 4
SAFETY PRECAUTIONS for ATEX pumps �����������������������������������������������������������������������������������������������4
SAFETY PRECAUTIONS (General)���������������������������������������������������������������������������������������������������������6
MATERIAL SPECIFICATION �������������������������������������������������������������������������������������������������������������������8
Material Profiles....................................................................................................................8
DimensIons...........................................................................................................................9
Performance data ...............................................................................................................10
Characteristic curves ...........................................................................................................10
INSTALLATION/OPERATION ��������������������������������������������������������������������������������������������������������������11
Installation Drawing ............................................................................................................ 11
installation / Start up........................................................................................................... 12
Troubleshooting Tips and Suggestions....................................................................................13
MAINTENANCE ��������������������������������������������������������������������������������������������������������������������������������14
Recommended tools for servicing pump ................................................................................. 14
Wet End Servicing (Installing Wet End Kit)..............................................................................14
Disassembly ..................................................................................................................14
Mounting ......................................................................................................................16
Air End Servicing (Installing Air End Kit)................................................................................. 19
Shaft, Bushing and O-ring Replacement ............................................................................19
Air Valve O-Ring Replacement .........................................................................................20
Valve Gasket Replacement .............................................................................................. 21
Replacement Air Valve Kit Installation ..............................................................................22
Exploded View and Spare Parts List.......................................................................................22
CLEARENCE CERTIFICATE �������������������������������������������������������������������������������������������������������������������26
DECLARATION OF CONFORMITY�������������������������������������������������������������������������������������������������������27
airPUMP AP025 (plastic)
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IMPORTANT INFORMATION
SAFETY PRECAUTIONS FOR ATEX PUMPS
Export Information
Chemical Reaction Disclaimer
Unpacking & Inspection
U.S. Export Administration Regulations, pursuant to ECCN 2B350, prohibit the export or re-export to certain enumerated
countries of air operated double diaphragm pumps in which all wetted materials are constructed from fluoropolymers without
first applying for and obtaining a license from the U.S. Bureau of Industry and Security(BIS). This affects all sera airPUMP
pumps constructed from PVDF with PTFE balls and diaphragms.
The user must exercise primary responsibility in selecting the product’s materials of construction which are compatible with the
fluid(s) that come(s) in contact with the product. The user may consult a manufacturer’s representative/distributor agent to seek
a recommendation of the product’s material of construction that offers the optimum available chemical compatibility.
However neither manufacturer nor agent shall be liable for product damage or failure, injuries, or any other damage or loss
arising out of a reaction, interaction or any chemical effect that occurs between the materials of the product’s construction and
fluids that come into contact with the product’s components.
Unpack the pump and examine for any signs of shipping damage.
If damage is detected, save the packaging and notify the carrier immediately.
To install the pump, follow the installation instructions provided.
WARNING
READ THIS SUPPLEMENTAL INSERT COMPLETELY BEFORE INSTALLING AND OPERATING THIS PUMP� FAILURE TO FOLLOW
THESE PRECAUTIONS CAN RESULT IN SERIOUS INJURY OR DEATH�
WARNING
Static sparking can cause explosion. When operating in a hazardous area or pumping a hazardous fluid, the pump’s
grounding screw and entire pump system must be grounded to earth to prevent static discharge. This includes but is not li-
mited to pipes, hoses, tanks, containers, valves, etc. Before operating the pump, ensure the electrical continuity throughout
the pumping system and earth ground is 1 Ohm or less. If it is greater than 1 Ohm, re-check all grounding connections.
WARNING
Static sparking can cause explosion. Excessive fluid flow rates and improper tank filling methods can produce static
electricity causing an explosion. Ensure safe fluid velocities and tank filling procedures in compliance with EN 13463-1
and CLC/TR 50404.
WARNING
Vibrations from operation may cause mounting surfaces and connections to loosen and generate a spark.
Ensure the pump and connections are securely mounted and fastened prior to each operation.
airPUMP AP025 (plastic)
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WARNING
Do not exceed minimum and maximum temperature limits of pump components.
A table of temperature limits is provided in the “Pump Data” section of the manual.
WARNING
Do not exceed maximum pressure stated on the pump serial number sticker.
WARNING
Prior to operating, check pump for any worn o-rings, gaskets, or seals. Any leaking or damaged o-rings, gaskets, or seals
must be repaired or replaced immediately.
WARNING
Pump exhaust may be loud and contain particles. Wear appropriate ear and eye protection. In the event of a diaphragm
rupture material can be forced out of the air exhaust muffler. If product is hazardous or toxic, pipe exhaust to appropriate
safe area.
WARNING
Pump must be cleaned on a regular basis to avoid dust buildup greater than 5mm.
WARNING
The surface temperature of the pump depends upon the temperature of the fluid that is being pumped. The chart below
lists different fluid temperatures and the corresponding pump surface temperatures, which determine the Temperature Class
when used in a hazardous area.
Fluid Temperature Maximum Surface
Temperature
Temperature
Class
Maxium Allowable
Surface Temperature
80°C (176°F) 80°C (176°F) T6 85°C (185°F)
airPUMP AP025 (plastic)
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WARNING
Hot surfaces. sera airPUMPs are capable of handling liquids with temperatures as high as 104ºC (220ºF).
This may cause the outer areas of the pump to become hot as well and could cause burns.
WARNING
Do not exceed 8.3 bar (120 psig) air supply.
WARNING
If a diaphragm rupture occurs, material being pumped may be forced out of the air exhaust. Proper care should be taken,
always wear protective clothing, eye protection & follow standard safety procedures.
SAFETY PRECAUTIONS (GENERAL)
WARNING
sera airPUMPs maximum temperature limits are based upon the material’s mechanical stress only. Maximum temperature is
application dependent. Consult a chemical resistance guide or the chemical manufacturer for chemical compatibility and
temperature limits.
WARNING
Chemical Hazard. This pump is used for transferring many types of potentially dangerous chemicals.
Always wear protective clothing, eye protection and follow standard safety procedures when handling corrosive or
personally harmful materials. Proper procedures should be followed for draining and decontaminating the pump before
disassembly and inspection of the pump. There may be small quantities of chemicals present during inspection.
EXPLOSION HAZARD
sera airPUMP with standard materials of construction should not be used with halogenated hydrocarbons. Halogenated
hydrocarbon solvents can cause explosion when used with aluminum components in a closed (pressurized) system. sera
airPUMPs with standard materials of construction contain aluminum components and will be affected by halogenated
hydrocarbon solvents.
1-1-1 Trichloroethane and Methylene Chloride are the most common halogenated hydrocarbons. However, other haloge-
nated hydrocarbon solvents are suspect if used either as part of paint or adhesive formulation, or for clean-up flushing.
For applications that may involve halogenated hydrocarbons, contact sera to discuss the availability of alternative pump
materials of construction.
airPUMP AP025 (plastic)
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WARNING
When pumping hazardous liquids, or operating the pump in an enclosed room, it is important to pipe the exhaust air to a
safe area.
WARNING
Pump exhaust may be loud and contain particles. Wear appropriate ear and eye protection. In the event of a diaphragm
rupture material can be forced out of the air exhaust muffler. If product is hazardous or toxic, pipe exhaust to appropriate
safe area.
CAUTION
Before attaching air supply to pump to make sure all airline debris is clear. It is recommended to use a
minimum 5µ (micron) air filter before the air valve.
CAUTION
Do not over-tighten the air inlet fitting or muffler. Too much torque could damage the air valve or muffler plate.
CAUTION
Before maintenance or repair, close the compressed air line supply valve, bleed the pressure and disconnect air line from
the pump. Discharge line may also be pressurized. Any pressure must be relieved prior to servicing. Remove suction /
discharge lines & drain the pump.
CAUTION
If pump is used with materials that tend to solidify or settle, the pump should be flushed after each use to prevent damage.
CAUTION
Use only genuine sera replacement parts to assure compatibility and longest service life.
CAUTION
Check the temperature limits for all wetted components when choosing pump materials. See table below.
airPUMP AP025 (plastic)
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MATERIAL SPECIFICATION
MATERIAL PROFILES
Material Chemical composition Description Operating temperature
min� max�
PP Pure Polypropylene Thermoplastic that is resistant to alkali and
strong acids.
0°C
(32°F)
70°C
(158°F)
Conductive PP Carbon filled Polypropylen Thermoplastic that is resistant to alkali and
strong acids and conductive.
0°C
(32°F)
70°C
(158°F)
PVDF Pure Polyvinylidene Fluoride Strong fluoropolymer with excellent chemical
resistance.
-12°C
(10°F)
104°C
(220°F)
Buna Acrylonitrile-butadiene Rubber General purpose elastomer.Resistant to oil,
water, solvent, and hydraulic fluid.
-12°C
(10°F)
88°C
(190°F)
Neoprene Chloroprene Rubber
General purpose elastomer with good resi-
stance to moderate chemicals, oils, grease,
solvents, and some refrigerants.
-18°C
(0°F)
100°C
(212°F)
SantopreneTM
Fully cured EPDM rubber
particles encapsulated in a
polypropylene (PP) matrix
Thermoplastic elastomer with good abrasion
resistance with chemical resistance to a wide
range of solvents and chemicals.
Injection molded with no fabric layer.
-40°C
(-40°F)
107°C
(225°F)
PTFE Polytetrafluoroethylene Chemically inert. Resistant to a wide range
of chemicals.
4°C
(40°F)
107°C
(225°F)
FEP Fluorinated Ethylene Propylene
Similar to PTFE in composition and chemical
resistance. Used to encapsulate FKM o-rings
for superior chemical resistance.
-40°C
(-40°F)
107°C
(225°F)
SantopreneTM is a registered tradename of Exxon Mobil Corp.
airPUMP AP025 (plastic)
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DIMENSIONS
airPUMP AP025 (plastic)
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CHARACTERISTIC CURVES
PERFORMANCE DATA
Air operated diaphragm pump AP025 (Plastic)
Max Flow Rate: 22 Litre/min. (5.8 gal/m) Suction/Discharge Size: 1/4“ BSB (i) / FNPT or
3/4“ BSP (a) / MNPT
Displacement Per Stroke: 0,02 Litre (0.005 gal) Air Inlet: 1/8“ FNPT or FBSPT
Max Outlet Pressure: 8,3 bar (120 psig) Air Consumption @6,9 bar: 13,6 Nm³/h (8 sfcm)
Max Particle Size: 0,06“ (1,8 mm) Max Material Inlet Pressure: 0,7 bar (10 psig)
Noise Level: 65,3 dB(A) Max Air Inlet Pressure: 8,3 bar (120 psig)
Max Suction Lift (Water) dry:
wet:
1,8 mWC (6 ft.)
8,5 mWC (28 ft.) Weight: PP & CFPP:
PVDF:
1,0 kg (2.3 lbs)
1,4 kg (3.1 lbs)
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