Sera airPUMP AP025 Operating Instructions Manual

Air operated diaphragm pump

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OPERATING INSTRUCTIONS
AIR OPERATED DIAPHRAGM PUMP
airPUMP AP025 (plastic design)
EN
TRANSLATION OF THE ORIGINAL OPERATING INSTRUCTIONS

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Summary of Contents for Sera airPUMP AP025

  • Page 1 OPERATING INSTRUCTIONS AIR OPERATED DIAPHRAGM PUMP airPUMP AP025 (plastic design) TRANSLATION OF THE ORIGINAL OPERATING INSTRUCTIONS...
  • Page 2 AP025 (plastic) www.sera-web.com...
  • Page 3: Table Of Contents

    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 www.sera-web.com...
  • Page 4: Important Information

    U.S. Bureau of Industry and Security(BIS). This affects all sera airPUMP pumps constructed from PVDF with PTFE balls and diaphragms.
  • Page 5 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. Maximum Surface Temperature Maxium Allowable Fluid Temperature Temperature Class Surface Temperature 80°C (176°F) 80°C (176°F) 85°C (185°F) www.sera-web.com...
  • Page 6: Safety Precautions (General)

    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.
  • Page 7 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.
  • Page 8: Material Specification

    PTFE Polytetrafluoroethylene of chemicals. (40°F) (225°F) Similar to PTFE in composition and chemical -40°C 107°C Fluorinated Ethylene Propylene resistance. Used to encapsulate FKM o-rings (-40°F) (225°F) for superior chemical resistance. Santoprene is a registered tradename of Exxon Mobil Corp. www.sera-web.com...
  • Page 9: Dimensions

    AP025 (plastic) DIMENSIONS www.sera-web.com...
  • Page 10: Performance Data

    65,3 dB(A) Max Air Inlet Pressure: 8,3 bar (120 psig) dry: 1,8 mWC (6 ft.) PP & CFPP: 1,0 kg (2.3 lbs) Max Suction Lift (Water) Weight: wet: 8,5 mWC (28 ft.) PVDF: 1,4 kg (3.1 lbs) CHARACTERISTIC CURVES www.sera-web.com...
  • Page 11: Installation/Operation

    Pulsation damper Air regulator Air filter Shut off valve Pressure gauge INLET flexible connection air supply DISCHARGE Shut off valve sera airPUMP Compound vacuum/ Pressure gauge SUCTION Shut off valve flexible connection Drain valve flexible connection at air valve inlet www.sera-web.com...
  • Page 12: Installation / Start Up

    Once the pump primes; the shut-off valve can be opened additionally to increase the pump’s flow. If the pump is operating but not pumping any liquid see the troubleshooting section for tips & suggestions. Accessories Surge suppressors, spill stops & filter regulators are available and should be used with sera airPUMP. www.sera-web.com...
  • Page 13: Troubleshooting Tips And Suggestions

    Clogged suction pipe or hose - Inspect & clear ■ Clogged strainer if used - Inspect & clear ■ Diaphragm failure - Replace diaphragm ■ PUMPED LIQUID RELEASED FROM AIR EXHAUST: Diaphragm failure - Replace diaphragm ■ Outer plate unthreading - Tighten & re-torque ■ www.sera-web.com...
  • Page 14: Maintenance

    Remove the four discharge manifold bolts (item 9) from The discharge seat o-rings, valve seats and valve balls the discharge manifold (item 16) using a T30 or T20 (items 13, 14 &15) can now be accessed and replaced Torx bit.. if needed. www.sera-web.com...
  • Page 15 After performing required maintenance, the pump can be reassembled. The pump can also be reassembled using the disassembly instructions in the reverse order as listed above. For detailed assembly instructions, follow steps „Mounting“ instructions on next page. www.sera-web.com...
  • Page 16: Mounting

    Loctite SF7649 should be used. Thread of lithium thickened grease. Avoid over lubrication as it ® the shaft onto the outer plate bolt until it is snug. can cause decreased performance of the air distribution system. www.sera-web.com...
  • Page 17 (items 19 & 23) can be installed onto the opposite end (4,5 Nm). of the shaft (item 27). It may be easier to thread the mol- ded in bolt into the shaft if the diaphragm(s) is inverted on one or both sides. This can be done by hand. www.sera-web.com...
  • Page 18 Place the suction manifold (item 12) atop the pump. the valve seat o-rings (item 13) into the groove that is Tighten and torque the suction manifold bolts (item 11) formed by the seats. in an “X” pattern. Torque to 50 in-lbs (5,6 Nm) www.sera-web.com...
  • Page 19: Air End Servicing (Installing Air End Kit)

    (item 17) using a T20 Torx bit. Use 1 or 2 flat head patible lubricant and push it into the bushing (item 28) screw drivers to pry the bushing out. Repeat for the gland in the center section. Reinstall the bushing hold other side. down screw (item 17). www.sera-web.com...
  • Page 20: Air Valve O-Ring Replacement

    (item 7), then pull straight up. The use of an M6 bolt, sure to lubricate the o-rings prior to inserting into the vise grip, and pry bars may be necessary. See 1 and valve body with a compatible lubricant. 1A pictures. www.sera-web.com...
  • Page 21: Valve Gasket Replacement

    (item 8). Ensure the slide valve and valve Torque the cap screws in an “X” pattern. Do not exceed plate (items 8 & 9) are in place and the valve sits flat on 15 in-lbs (1,7 Nm). the center section. www.sera-web.com...
  • Page 22: Replacement Air Valve Kit Installation

    VALVE CAP O-RING, BUNA 109877 A1/V1/V2 VALVE CAP, DELRIN W/O-RINGS (ITEM 5) 111796 V1/V2 RETAINING RING, HO-81SSTL 109649 V1/V2 SLIDE VALVE 109256 V1/V2 VALVE PLATE 109260 V1/V2 GASKET, AIR VALVE 109264 A1/V1/V2 TORX HD, DELTA P60-2.14 X 25MM 109764 www.sera-web.com...
  • Page 23 O-RING, BUSHING ID 111737 SHAFT, SS 109172 CENTER SECTION, PP 109148 CENTER SECTION, CFPP 109148-1 PIPE PLUG, PP 1/4" NPT/BSPT SEE MANIFOLD TABLE PIPE PLUG, PVDF 1/4" NPT/BSPT SEE MANIFOLD TABLE GROUNDING LUG 109698 MUFFLER FELT 109072 NS - Not Shown www.sera-web.com...
  • Page 24 * Asterisk (*) from the exploded view diagram indicates fasteners to be torqued. Design: AP025 PP, AP025 C & AP025 PVDF Pos� Torque 1,7 Nm (15 in-lbs) 5,6 Nm (50 in-lbs) 3,4 Nm (30 in-lbs) 4,5 Nm (40 in-lbs) www.sera-web.com...
  • Page 25 Pos. 29 (NS) Pipe plug, PP 109754 109754 AP025 PVDF 109131-2 109747-2 109747-3 109131-2 Pos. 29 (NS) Pipe plug, PVDF 109755 109755 OPTIONAL PORTING LOCATIONS: = Standard Porting = Center Horizontal = Center Vertical CV & END = Center Vertical Suction & END discharge� www.sera-web.com...
  • Page 26: Clearence Certificate

    Machines which are operated with radioactive media shall only be inspected and/or repaired in the safety area of the owner by a sera specialized fitter. The clearance certificate is part of the inspection-/repair order. sera reserves the right to refuse acceptance of the order for other reasons. DOWNLOAD Clearance Certificate...
  • Page 27: Declaration Of Conformity

    DECLARATION OF CONFORMITY Original Business name and full address of the manufacturer: sera GmbH, sera-Straße 1, D - 34376 Immenhausen Name and address of the person authorised to compile the technical file: Sabine Morell, sera-Straße 1, D – 34376 Immenhausen Description and identification of the machinery: Air-operated diaphragm pump for dosing fluids for industrial applications.
  • Page 28 FOLLOW US sera GmbH sera-Str. 1 34376 Immenhausen Germany Tel. +49 5673 999 00 Fax +49 5673 999 01 info@sera-web.com www.sera-web.com...

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