Pentair Myers Aplex Series Installation And Service Manual
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Pentair Myers Aplex Series Installation And Service Manual

Pentair Myers Aplex Series Installation And Service Manual

Triplex pumps
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MODELS
MA-95L, MA-95M, MA-120L, MA-120L-HD, MA-120M, MA-120M-HD,
SC-170, SC-170L, SC-170H, AND SC-170DD
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-03-104 | © 2018 Pentair plc | 04/18/18

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  • 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-03-104 | © 2018 Pentair plc | 04/18/18...

  • Page 2: Table Of Contents

    Engineering Data Stuffing Box, Packing and Plunger Assemblies ..23 MA-95L ..............3 MA-95M ..............4 General ..............23 MA-120L ..............5 Spring Loaded Packing ...........23 MA-120L-HD ............6 J-Style Stuffing Box & Plunger Assembly MA-120M ..............7 (Styles 838 and 858) .......... 23-24 MA-120M-HD ............

  • Page 3: Engineering Data Ma-95L

    MA-95L ENGINEERING DATA MA-95L ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump MA-95L Plunger Type Rokide Stainless Steel: ® Chromium Oxide-Coated 316 S.S. Maximum Input HP at Speed 95 at 450 rpm Stuffing Boxes, Field-Removable and Replaceable: Rated Continuous Plunger Load 6,259 lbs.
  • Page 4 MA-95M ENGINEERING DATA MA-95M ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump MA-95M Packing Types Available: Gland-loaded, Nonadjustable Style 838 Maximum Input HP at Speed 95 at 450 rpm Spring-loaded, Cup-Type Style 120X Rated Continuous Plunger Load 6,259 lbs. Spring-loaded, Braided PTFE Coating &...
  • Page 5 MA-120L ENGINEERING DATA MA-120L ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump MA-120L Plunger Type Rokide Stainless Steel: ® Chromium Oxide-Coated 316 S.S. Maximum Input HP at Speed 120 at 450 rpm Stuffing Boxes, Field-Removable and Replaceable: Rated Continuous Plunger Load 7,452 lbs.

  • Page 6: Ma-120L-Hd

    MA-120L-HD ENGINEERING DATA MA-120L-HD ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump MA-120L-HD Plunger Type Rokide Stainless Steel: ® Chromium Oxide-Coated 316 S.S. Maximum Input HP at Speed 144 at 450 rpm Stuffing Boxes, Field-Removable and Replaceable: Rated Continuous Plunger Load 8,937 lbs.
  • Page 7 MA-120M ENGINEERING DATA MA-120M ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump MA-120M Stuffing Boxes, Field-Removable and Replaceable: Aluminum Bronze B148-C955 Maximum Input HP at Speed 120 at 450 rpm Carbon Steel 1020 Rated Continuous Plunger Load 7,452 lbs. Packing Types Available: Stroke 4-1/4"...

  • Page 8: Ma-120M-Hd

    MA-120M-HD ENGINEERING DATA MA-120M-HD ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump MA-120M-HD Stuffing Boxes, Field-Removable and Replaceable: Aluminum Bronze B148-C955 Maximum Input HP at Speed 120 at 450 rpm Carbon Steel 1020 Rated Continuous Plunger Load 8,937 lbs. Packing Types Available: Stroke 4-1/4"...
  • Page 9 SC-170L ENGINEERING DATA SC-170L ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump SC-170L Stuffing Boxes, Field-Removable and Replaceable: Aluminum Bronze B148-C955 Maximum Input HP at Speed 230 at 450 rpm Carbon Steel 1020 Rated Continuous Plunger Load 14,280 lbs. Piston Liner: Stroke 4-1/4"...
  • Page 10 SC-170 ENGINEERING DATA SC-170 ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump SC-170 Plunger Type Rokide Stainless Steel: ® Chromium Oxide-Coated 316 S.S. Maximum Input HP at Speed 230 at 450 rpm Stuffing Boxes, Field-Removable and Replaceable: Rated Continuous Plunger Load 14,280 lbs.
  • Page 11 SC-170H ENGINEERING DATA SC-170H ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump SC-170H Plunger Type Rokide Stainless Steel: ® Chromium Oxide-Coated 316 S.S. Maximum Input HP at Speed 230 at 450 rpm Stuffing Boxes, Field-Removable and Replaceable: Rated Continuous Plunger Load 14,280 lbs.
  • Page 12 SC-170DD ENGINEERING DATA SC-170DD ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump SC-170DD Piston Cups Available: Urethane Maximum Input HP at Speed 230 at 450 rpm Nitrile Rated Continuous Plunger Load 14,280 lbs. HSN and Aramid Fiber Stroke 4-1/4"...

  • Page 13: Dimensional Data

    CROSS-SECTION DIMENSIONAL DATA TABLE Ref. No. MA-95L MA-95M MA-120L MA-120L-HD MA-120M SC-170 SC-170L SC-170H SC-170DD – 8-7/8 8-7/8 8-7/8 8-7/8 – – 8-7/8 – 42-5/8 42-5/8 42-5/8 42-5/8 42-5/8 46-3/4 21-1/2 21-1/2 21-1/2 21-1/2 21-1/2 21-1/2 21-1/2 21-1/2 22-5/16 23-3/8 23-3/8 23-3/8 23-3/8...
  • Page 14 DIMENSIONAL DRAWINGS OIL PRESSURE SET VALVE LUBE OIL FILTER 7/8" DRILL OIL PRESSURE GAUGE CRANKSHAFT 4 PLACES 27-13/16 2-7/16 10-13/16 PUMP 21-5/8 2-7/8 1-1/2 6-5/16 Cast Fluid End DISCHARGE CONNECTION SUCTION CONNECTION OIL DRAIN CRADLE DRAIN Block Fluid End DISCHARGE CONNECTION SUCTION CONNECTION...

  • Page 15: Installation, Operation, Lubrication, Maintenance And Storage Instructions

    INSTALLATION, OPERATION, working spaces around the pump to provide ample access to fluid end, power end, and associated drive LUBRICATION, MAINTENANCE elements. Do not expect good maintenance to result if the pump is positioned on muddy terrain, or in a dirty, AND STORAGE INSTRUCTIONS cramped, dimly lighted area! The supply tank(s) should be large to allow dissolved...

  • Page 16: Acceleration Head

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

  • Page 17: Bypass Piping

    Some designers ignore this important aspect of proper should be filled to approximately the halfway point. design of pump piping systems. Myers Aplex Series pumps use S.A.E. 40 wt. A reciprocating pump, especially after maintenance of nondetergent oil in the crank case. This oil requires only...

  • Page 18: Suggested Piping System For Plunger Pumps

    SUGGESTED PIPING SYSTEM FOR PLUNGER PUMPS NOTES 1) CENTERLINE OF PUMP SUCTION (INLET) TO BE SLIGHTLY HIGHER THAN CENTERLINE OF SUCTION (INLET) VALVE, SO ANY AIR IN SUCTION SYSTEM PROMPTLY REACHES THE PUMP AND IS EXPELLED. 2) SLOPE BYPASS SO LOW POINT DRAIN WILL FULLY EMPTY RELIEF AND CHOKE VALVES AND ALL LIQUID IN BYPASS CIRCUIT.

  • Page 19: Direction Of Rotation

    Applying the above forces with a small spring scale, adjust motor position to provide the following deflection at mid-span: GENERAL Approx. Center Deflection, Myers Aplex Series crankshaft suspension uses two Distance inches single-row tapered bearings, which are shim adjusted (Span), inches to provide the correct running clearance.

  • Page 20: Cup Installation

    SEAL must be fully round, chrome plated, and finish ground to the above sizes. (Myers Aplex Series does not Insert oil seal over the end of crankshaft and position perform this function.) it into the oil seal bore in the bearing carrier.

  • Page 21: Connecting Rod, Crosshead, Extension Rod, Cross- Head Pin And Wiper Box Assembly/Disassembly

    Installed Bushing Bore: 2.0251/2.0261 Oil Clearance ..........0013/.0028" GENERAL Replacement bushings are furnished prebored by Myers Aplex Series connecting rod assemblies employ Myers Aplex Series which usually eliminates the precision automotive type steel backed, babbitt-lined need to ream the installed bushing bore. However,...

  • Page 22: Order Of Assembly

    New Connecting Rod Bore: 4.232/4.233 and water. Crankpins that are worn out-of-round, tapered, or Myers Aplex Series has developed a unique sealing set badly scored should either be dis carded or perhaps which operates on a hardened and ground stainless salvaged by grinding under size, hard chrome-plated, steel extension rod (often called “pony”...

  • Page 23: Inserting The Plunger

    ASSEMBLY (STYLES 838 & 858) GENERAL Styles 838 and 858 packing correctly installed with all Myers Aplex Series pumps all feature field removable packing lips facing toward the fluid pressure. Note that and replaceable stuffing boxes with plungers two units of Styles 838 and 858 packing are positioned separable from the extension rods.

  • Page 24: Inserting The Plunger

    INSTALLING THE STUFFING BOX recommended especially for pumps on continuous duty. This provides regular, controlled supply of lubricant Myers Aplex Series stuffing boxes derive their alignment lowering friction and heat. from the bores of the power frame and the faces of the fluid end.

  • Page 25: Plungers

    The puller stem and puller head are provided with tapered (locking) threads. Screw them together using two pipe All threads on Myers Aplex Series plungers must be clean wrenches applied to the knurled areas provided. Then and oiled before assembly. Stainless steel (although very screw the valve seat onto the puller head by hand until it corrosion resistant) has a tendency to gall and seize.

  • Page 26: 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 All Myers Aplex Series valve springs are made of not tighten. Inconel material, precisely designed and fabricated.

  • Page 27: Trouble Location And Remedy

    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 28 TROUBLE LOCATION AND REMEDY Trouble Possible Cause Remedy Pump vibrates or pounds. Gas in liquid. Submerge return, supply or makeup lines in suction supply tank. If operating under a suction lift, check joints for air leaks. Pump valve stuck open. Remove debris beneath valve.
  • Page 29 TROUBLE LOCATION AND REMEDY Trouble Possible Cause Remedy Wear of power end parts (excessive). Poor lubrication. Replace oil as recommended in instructions. Keep oil clean and at correct temperature. Be sure oil is reaching all bearings. Overloading. Modify pump or system to eliminate overload.

  • Page 30: Parts Lists

    Power Frame Assembly; Connecting Rod, Crosshead & Wiper Box Assembly SC-170DD SC-170DD Item Quantity Description Part Number Item Quantity Description Part Number Power Frame 7204-0305-00K Crankpin Bearing Pair, w/Oil Groove 7204-0073-10K Crankcase Cover 7204-0304-00C Wrist Pin 7204-0005-00A 3/8"NC Hex Head Cap Screw x 3/4" Long 100-038034-273 3/8"NC Socket Hd.
  • Page 31 Crankshaft Assembly 4" Stroke; Right-Hand and Left-Hand Drive; Right-Hand Shown MA-95L, MA-95M MA-95L, MA-95M Item Quantity Description Part Number Item Quantity Description Part Number Crankshaft Assembly (includes items 1 & 2) PE103K Oil Seal, Drive Side 145-393538-999 Crankshaft 7204-0019-40D Frame Plug 7204-0315-00A Drive Key 146-078634-236...
  • Page 32 Crankshaft Assembly 4-1/4" Stroke; Right-Hand and Left-Hand Drive MA-120L-HD, SC-170L, SC-170, SC-170H MA-120L-HD, SC-170L, SC-170, SC-170H Item Quantity Description Part Number Item Quantity Description Part Number Crankshaft Assembly (includes items 1 & 2) PE301K Bearing Retainer & Lube Oil Pump Driver Assembly 7204-0322-01B Crankshaft Forged and Nitrided 7204-0957-00D...
  • Page 33 Crankshaft Assembly 4-1/4" Stroke Auburn Gear #8; Left-Hand Drive 11 14 22 20 SC-170L, SC-170, SC-170H, SC-170DD SC-170L, SC-170, SC-170H, SC-170DD Item Quantity Description Part Number Item Quantity Description Part Number Crankshaft Assembly (includes items 1, 2 & 27) PE304K Switchgauge, Murphy 7509-0008-00A Crankshaft...
  • Page 34 Fluid End Assembly (Ductile Iron) MA-95L, MA-120L, SC-170L Item Quantity Description Part Number Valve Cover Screw, Ductile Iron 7204-0345-00B Valve Cover, Steel 7204-0403-10B O-Ring, Nitrile Rubber 001500131 1/4" Hex Hd. Pipe Plug, S.S. 170-014002-405 Liquid End, Ductile Iron, for Tapered Seats 7204-0405-00E 1"...
  • Page 35 Fluid End Assembly (Nickel Aluminum Bronze Block) MA-95M, MA-120M Item Quantity Description Part Number Valve Cover, Aluminum Bronze 7204-0059-00B Valve Cover Gasket 7204-0060-00A 1" x 3-3/4" Stud, Valve Cover 7507-2793-00A 1" -8 Thread Nut, Hvy. Hex 133-100008-243 1" x 4-7/8" Stud, Stuffing Box 7507-2791-00A 7/8"...
  • Page 36 Fluid End Assembly (Steel Block Weld-Neck Flanges) MA-120L, MA-95L, SC-170L Item Quantity Description Part Number Valve Cover Screw, Ductile Iron 7204-0345-00B Valve Cover, Steel 7204-0403-10B O-Ring, Nitrile Rubber 001500131 1/4" Hex Hd. Pipe Plug, S.S. (Optional) 170-014002-405 Liquid End, Forged Steel Weldment Refer to factory 1"...
  • Page 37 Stuffing Box Assembly Qty. 3 per pump ea. MA-95L, MA-120L, SC-170L, SC-170 Stuffing Box Stuffing Box, Stuffing Box, Stuffing Box, Gland, Gland, Seal, Nitrile *Steel Stainless Steel Nickel Alum. *Steel Nickel Alum. Plunger Baffle Rubber (#4) (#4) Bronze (#4) (#5) Bronze (#5) Diameter (#2)
  • Page 38 4" Piston Assembly Qty. 3 per pump ea. SC-170L, SC-170DD SC-170L, SC-170DD Item Quantity Description Part Number Item Quantity Description Part Number Piston Liner, 4" High Chrome Iron 7204-1106-00K Stud 7204-1143-00A Piston Rod 7204-1056-00B Nut, 1"NC 127-100008-243 Piston Assembly (Black) 7204-1146-00K Piston Liner Flange 7204-1054-00B...
  • Page 39 4-1/4" Piston Assembly Qty. 3 per pump SC-170DD SC-170DD Item Quantity Description Part Number Item Quantity Description Part Number Piston Liner, 4-1/4" White Ceramic 7204-1265-00K Stud 7204-1143-00A Piston Rod 7204-1056-00B Nut, 1"NC 127-100008-243 Piston Assembly (Black) 7204-1290-00A Piston Liner Flange 7204-1054-00B Part of #3 Above Baffle...

  • Page 40: 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;...

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