Pentair Myers Aplex MA-155L Installation And Service Manual
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Pentair Myers Aplex MA-155L Installation And Service Manual

Pentair Myers Aplex MA-155L Installation And Service Manual

Triplex pumps
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MODELS
MA-155L, MA-155M, MA-155M-HD, SC-230
TRIPLEX PUMPS
INSTALLATION AND SERVICE MANUAL
NOTE! To the installer: Please make sure you provide this manual to the owner of the equip ment or to the responsible
party who maintains the system.
Part # AP-03-105 | © 2018 Pentair plc. | 04/12/18

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Summary of Contents for Pentair Myers Aplex MA-155L

  • Page 1 INSTALLATION AND SERVICE MANUAL NOTE! To the installer: Please make sure you provide this manual to the owner of the equip ment or to the responsible party who maintains the system. Part # AP-03-105 | © 2018 Pentair plc. | 04/12/18...

  • Page 2: Table Of Contents

    Engineering Data Stuffing Box, Packing and Plunger Assemblies ..17 MA-155L ..............3 General ..............17 MA-155M ..............4 Spring Loaded Packing..........17 MA-155M-HD ............5 J-Style Stuffing Box & Plunger Assembly SC-230 ..............6 (Styles 838 and 858) ..........17 Inserting the Plunger ..........18 Dimensional Data..........

  • Page 3: Engineering Data Ma-155L

    MA-155L ENGINEERING DATA MA-155L ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump MA-155L Plunger Type Rokide Stainless Steel: ® Chromium Oxide-Coated 316 S.ST. Maximum Input HP at Speed 155 at 450 rpm Stuffing Boxes, Field-Removable and Replaceable: Rated Continuous Plunger Load 9,087 lbs.
  • Page 4 MA-155M ENGINEERING DATA MA-155M ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump MA-155M Plunger Type Rokide Stainless Steel: ® Chromium Oxide-Coated 316 S.ST. Maximum Input HP at Speed 155 at 450 rpm Stuffing Boxes, Field-Removable and Replaceable: Rated Continuous Plunger Load 9,087 lbs.

  • Page 5: Ma-155M-Hd

    MA-155M-HD ENGINEERING DATA MA-155M-HD ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump MA-155M-HD Plunger Type Rokide Stainless Steel: ® Chromium Oxide-Coated 316 S.ST. Maximum Input HP at Speed 175 at 450 rpm Stuffing Boxes, Field-Removable and Replaceable: Rated Continuous Plunger Load 10,259 lbs.
  • Page 6 SC-230 ENGINEERING DATA SC-230 ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump SC-230 Available Liquid End Materials, ASTM: Steel A105 Maximum Input HP at Speed 310 at 450 rpm Piston Type Rubber Rated Continuous Plunger Load 18,320 lbs. Liners Hardened Steel Stroke...

  • Page 7: Dimensional Data

    CROSS-SECTION DIMENSIONAL DATA TABLE Ref. No. MA-155L MA-155M MA-155M-HD SC-230 54-1/2 53-7/8 53-7/8 – – 41-11/16 41-11/16 – 20-13/16 19-3/4 19-3/4 – – 9-1/8 9-1/8 – 5-1/2 6-1/2 6-1/2 – (B) Discharge Connections 3" ANSI 600 FF 2" ANSI 1500 FF 2"...
  • Page 8 DIMENSIONAL DRAWINGS 32-1/4 2-3/8 2-7/8 32-1/4 12-1/2 2-3/8 2-7/8 PUMP PUMP 32-1/4 12-1/2 2-3/8 2-7/8 PUMP PUMP 4 TYP. 12-1/2 2 TYP. 5-3/4 TYP. PUMP PUMP 4 TYP. 2 TYP. 5-3/4 TYP. DISCHARGE CONNECTION 4 TYP. Cast Fluid End 2 TYP. 5-3/4 TYP.

  • Page 9: Installation, Operation, Lubrication, Maintenance And Storage Instructions

    INSTALLATION, OPERATION, access to fluid end, power end and associated drive elements. Do not expect good maintenance to result if LUBRICATION, MAINTENANCE the pump is positioned on muddy terrain, or in a dirty, cramped, dimly lighted area! AND STORAGE INSTRUCTIONS The supply tank(s) should be large to allow dissolved air and other gases to escape from the liquid and allow suspended solids to settle out before entering pump.

  • Page 10: Acceleration Head

    Suction piping should be buried beneath the frost A charging pump is usually not a good substitute line or insulated to avoid freezing in the winter. If the for a short, direct, oversize suction line, nor is it a suction line has a block valve at the supply tank, a substitute for the computation of available NPSH, suitable relief valve is suggested to relieve the suction acceleration head, friction head, vapor pressure...

  • Page 11: Bypass Piping

    Use a full size relief line. amounts of dissolved air or gas. An automatic bypass and purging system for these applications may To minimize vibration (whether hydraulic or be merited. mechanical), discharge lines should be kept short, direct, well supported and solidly anchored. Avoid LUBRICATION “dead”...

  • Page 13: Direction Of Rotation

    AUTOMATIC (SAFETY) SHUTDOWNS Use the following table in adjusting V-belt tension: Belt Tension at Mid-Span Carefully check all electric shutdown devices present, Cross-Section New Belts Used Belts such as crankcase oil level, discharge pressure, “B” 5 – 6 lbs. 3-1/4 – 5 lbs. vibration, lubricator oil level, motor thermostat, etc.

  • Page 14: Installing Crankshaft

    The tool or plate used for this must contact only the holes are provided in the flange of the carrier for outer end face – not on the taper. this purpose. Support the shaft during removal to avoid damage. INSTALLING CRANKSHAFT The crankshaft may now be extracted, once all connecting rods are moved clear.

  • Page 15: Installing Wrist Pin Bushings

    BOLTING THE WRIST PIN power frame bores for scoring and abnormal wear, especially wear of the lower crosshead guide way. Hone smooth, if rough. After pressing in the two bronze bushings, the wrist pin must be bolted to the connecting rod. Place the Measure the bores of the frame using inside connecting rod inside the crosshead and slide the wrist micrometers to determine abnormal frame wear if any.

  • Page 16: Oil Scoop

    fitting of these precision bearings. Using a torque patented rod seal employs a soft nitrile rubber O-ring wrench, tighten cap bolts as follows: to energize a special hard polyurethane Molythane ® shell by forcing the inner lip against the rod and the Thread Size: 5/8"...

  • Page 17: Stuffing Box, Packing And Plunger Assemblies

    Spring Loaded Packing: seals, thread the tapered threads (must be clean!) into the tapered crosshead female threads. Firmly tighten, Three rings of chevron or compression packing applying torque to the wrenching flats only. Never are installed next. For compression packing, install damage the extension rod ground surfaces! them with the skive intersections 180º...

  • Page 18: Inserting The Plunger

    INSERTING THE PLUNGER CONNECTING THE PLUNGER Apply oil liberally to plunger O.D. and lightly tap it Install the metal baffle plate on the extension rod through the packing. When introducing the plunger and roll the pump slowly until the extension rod male through the MA-155M stuffing boxes, also apply oil threads just touch the mating plunger female threads.

  • Page 19: Disc Valve Systems And Abrasion Resistant Valve Construction

    All threads on Myers Aplex Series plungers must all deposits of gyp, salt, or other incrustation. Using be clean and oiled before assembly. Stainless steel emery cloth, lightly rub out any minor imperfections (although very corrosion resistant) has a tendency to found in the deck taper.

  • Page 20: Valve Spring Options

    VALVE SPRING OPTIONS Using a 1/2" bar (or screwdriver), rotate the head clockwise and thread it fully onto the seat. But do not tighten. All Myers Aplex Series valve springs are made of Inconel material, precisely designed and fabricated. Slide the bridge over the stem. Clean and oil the stem Unless otherwise specified, the standard spring is threads.

  • Page 21: Trouble Location And Remedy

    TROUBLE LOCATION AND REMEDY Trouble Possible Cause Remedy Pump fails to deliver Speed incorrect. Change drive ratio or tighten required capacity. Belts slipping. belts (if loose). Correct motor speed. Air leaking into pump. Seal with compounds. Liquid cylinder valves, Reface or lap valves and seats; seats or plungers worn.
  • Page 22 TROUBLE LOCATION AND REMEDY Trouble Possible Cause Remedy Consistent knock. Water in power end, crankcase. Drain. Refill with clean oil. Worn or noisy gear. Replace. Worn or loose main bearing, crank Adjust or replace. pin bearing, wrist pin bushing, Add oil to proper level. plunger, valve seat, low oil level.
  • Page 23 TROUBLE LOCATION AND REMEDY Trouble Possible Cause Remedy Excessive heat in power end. Pump operating backward. Correct rotation. (Above 180ºF) Insufficient oil in power end. Fill to proper level. Excessive oil in power end. Drain to proper level. Incorrect oil viscosity. Fill with correct oil.

  • Page 24: Parts Lists

    Power Frame Assembly; Connecting Rod, Crosshead & Extension Rod Assembly MA-155L, MA-155M, MA-155M-HD, SC-230 MA-155L, MA-155M, MA-155M-HD, SC-230 Item Description Eng. No. Item Description Eng. No. Powerframe (Before Jan. 2015) 7201-0048-01K Locking Nut, S.ST. (Before Jan. 2015) 151-012013-405 Powerframe 7201-0049-00E Connecting Rod 7201-0351-00D Crankcase Cover...
  • Page 25 Crankshaft Assembly 4-1/2" Stroke; Right-Hand and Left-Hand Drive; Right-Hand Shown MA-155M-HD, SC-230 MA-155M-HD, SC-230 Item Description Eng. No. Item Description Eng. No. Crankshaft Assembly (includes items 1 & 2) PE293K Shim Set 7502-0237-00A Crankshaft 7201-0725-00D Oil Seal, Drive Side 145-458558-999 Drive Key 146-100700-236 Key, Packing Lubricator Drive Side...
  • Page 26 Fluid End Assembly MA-155L Item Description Eng. No. Valve Cover 7201-0088-00C Valve Cover Seal 7201-0008-00A 3/4" Hex Hd. Pipe Plug, S.ST. 170-034002-405 Liquid End, Nickel Aluminum Bronze 7201-0080-00E 1-1/4" x 5-7/8" Stuffing Box Stud 7507-2738-00A 3/4" x 3-1/2" Stud, Discharge Flange 7507-2735-00A 1-1/4"...
  • Page 27 Fluid End Assembly SC-230 Item Description Eng. No. Fluid End, Steel Consult Factory Valve & Cylinder Cover 7201-0575-00B Valve & Cylinder Cover Seal 7201-0008-00A 1-1/4" x 5-7/8" Stud, Stuffing Box 7507-2738-00A 1-1/4" x 4" Stud, Valve Cover 7507-2737-00A 1-1/4"-8 Thrd., Nut, Hvy. Hex 141-114008-243 1/2"...
  • Page 28 Stuffing Box Assembly Qty. 3 per pump MA-155L Plunger, Stuffing Box Seal, Nitrile Stuffing Box, Stuffing Box, Gland Gland Nut Plunger Chrome-Oxide Baffle Rubber Steel Alum. Bronze Steel Alum. Bronze Diameter (#1) (#2) (#3) (#4) (#4) (#5) (#5) 4" 7201-0325-32B 7201-0039-00A 7201-0007-00A 7201-0584-00B...
  • Page 29 4-1/2" Piston Assembly Qty. 3 per pump SC-230 SC-230 Item Description Eng. No. Item Description Eng. No. Piston Liner, High Chrome Iron 7201-0729-00K Seal, Liner 7201-0727-00A Piston Rod 7201-0728-00B Nut, Piston Rod, Self Locking 151-100008-273 Piston Cup Assembly, 4-1/2", Black Rubber 7201-0731-00K Piston Liner Flange 7201-0730-00B...

  • Page 32: Warranty

    (f) if unit is used for purposes other than for what it is designed and manufactured; (g) to any unit that has been repaired or altered by anyone other than Pentair Myers or an authorized Pentair Myers service provider;...

This manual is also suitable for:

Myers aplex ma-155mMyers aplex ma-155m-hdMyers aplex sc-230

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