Pentair MYERS APLEX RO-174 Installation And Service Manual
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Pentair MYERS APLEX RO-174 Installation And Service Manual

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MODELS
MA-95L, MA-95M, MA-120L, MA-120L-HD, MA-120M,
SC-170, SC-170L, SC-170H, SC-170DD,
RO-174, RO-185
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 | © 2014 Pentair Ltd. | 01/14/14

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Summary of Contents for Pentair MYERS APLEX RO-174

  • 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 | © 2014 Pentair Ltd. | 01/14/14...

  • Page 2: Table Of Contents

    Engineering Data Stuffing Box, Packing and Plunger Assemblies ..25 MA-95L ............. 3 General ............25 MA-95M ............4 Spring Loaded Packing ........25 MA-120L ............5 J-Style Stuffing Box & Plunger Assembly MA-120L-HD ............. 6 (Styles 838 and 858) ........26 MA-120M ............

  • 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 Teflon &...
  • 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 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 9 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 410 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 10 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 11 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 Kevlar ® Stroke 4-1/4"...
  • Page 12 RO-174 ENGINEERING DATA RO-174 ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump RO-174 Stuffing Boxes, Field-Removable and Replaceable: Aluminum Bronze B148-C955 Maximum Input HP at Speed 125 at 450 rpm Stainless Steel, Hardened 17-4PH S.S. Rated Continuous Plunger Load 8,250 lbs.
  • Page 13 RO-185 ENGINEERING DATA RO-185 ENGINEERING DATA Power End Liquid End (Continued) Model Triplex Pump RO-185 Stuffing Boxes, Field-Removable and Replaceable: Aluminum Bronze B148-C955 Maximum Input HP at Speed 140 at 450 rpm Stainless Steel Rated Continuous Plunger Load 8,688 lbs. Packing Types Available: Stroke 4-1/4"...

  • Page 14: 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 RO-174 RO-185 – 8-7/8 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 42-5/8 21-1/2 21-1/2 21-1/2 21-1/2 21-1/2 21-1/2 21-1/2 21-1/2...
  • Page 15 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 16: 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 AND elements. Do not expect good maintenance to result if the pump is positioned on muddy terrain, or in a dirty, STORAGE INSTRUCTIONS cramped, dimly lighted area! The supply tank(s) should be large to allow dissolved...

  • Page 17: Acceleration Head

    airtight and watertight. If you can see water leaking out NOTE: Charge pumps should be sized to 150% of rated of a suction line when the pump is still, that may mean pump volume. Charge pumps need to be centrifugals, air is being sucked in when the pump is running.

  • Page 18: Bypass Piping

    3. A pressure gauge with gauge dampener or end of the stroke. This depends on the design of the snubber. Consider a liquid filled gauge. fluid end and on the plunger size selected. (Scale range to be double the normal pump Choice of the largest size plunger for a particular operating pressure.) fluid end improves this compression ratio and so...

  • Page 20: Direction Of Rotation

    After about one week of operation, new V-belts will WARNING: Do not operate without appropriate guards have stretched somewhat. The motor must be moved in place. on its slide base to re-establish proper belt tensioning. DIRECTION OF ROTATION Insufficient tension results in slippage, burning, squealing (especially during starting) and shortened Before placing pump in operation, check that belt life.

  • Page 21: Cup Installation

    This ruins the bearings!) Using clean, insulated gloves, shimming is correct, the shaft will move laterally from remove the hot cone assembly from the oven, promptly .005" to .010". dropping it on to the shaft. The recommended tightening torque for bearing The cone assembly MUST contact the seat thrust face retainer 5/8"-11UNC cap screws is 118 to 145 ft.

  • Page 22: Disassembly

    CONNECTING ROD, CROSSHEAD, event (not recommended) that the pump is caused to rotate opposite the correct direction. The lube EXTENSION ROD, CROSSHEAD PIN oil pump is readily removed for inspection, repair, or replacement without disturbing any other AND WIPER BOX ASSEMBLY/ pump component.

  • Page 23: Installing Wrist Pin Bushings

    INSTALLING WRIST PIN BUSHINGS A mishap during in sertion can occur caus ing the ruin of the pin or the crosshead, if during application The wrist pin bushing is precision machined of pres sure: bearing bronze which is press fitted into the eye of (a) Pin is not aligned absolutely square with the connecting rod.

  • Page 24: Oil Scoop

    WIPER BOX ASSEMBLY above diameter. (Myers Aplex Series does not offer this service.) Connecting rod /cap bore must be perfectly round and GENERAL with in above sizes and free of taper. Discard if elliptical or tapered as the result of abnormal heat ing. Each cap Extension rod wiper boxes (sometimes referred to and rod is match-marked for correct identification.

  • Page 25: Inserting The Plunger

    INSERTING THE PLUNGER SPRING LOADED PACKING Compression Packing SPRING GUIDE WRENCHING FLATS EXTENSION SPACERS GLAND RING PACKING SPRING WIPER TAPERED THREADS GLAND RING SPRING GUIDE Chevron Packing Note that the gland is screwed tightly onto the box and contacts its face. The spring is providing all of the Insert the extension rod through the wiper seals with initial compression and adjustment.

  • Page 26: J-Style Stuffing Box & Plunger Assembly (Styles 838 And 858)

    J-STYLE STUFFING BOX & PLUNGER ASSEMBLY Lantern rings are provided with O.D. and I.D. reliefs and two (or more) oil holes to allow lubricant to reach (STYLES 838 & 858) the plunger. After the last unit of Styles 838 and 858 packing is in place, generously oil the lips of all seal rings to ease plunger entry.

  • Page 27: Installing The Stuffing Box

    INSTALLING THE STUFFING BOX Additionally, the regular application of the correct lubricant aids dissolving of salt and gyp tending Myers Aplex Series stuffing to build up on the plungers in produced water JACK SCREW HOLES FOR BOX REMOVAL boxes derive their alignment applications.

  • Page 28: Disc Valve Systems And Abrasion Resistant

    DISC VALVE SYSTEMS AND seat. An anti-seizing lubricant applied to all threads is good insurance against future difficulty. ABRASION RESISTANT SETTING THE VALVE SEAT GENERAL Myers Aplex Series has developed a unique setting/ INSERT 1/2" BAR TO puller system permitting quick, easy and safe methods UNSCREW HEAD of installing and removing tapered seat valves.

  • Page 29: Installing O-Rings, Abrasion Resistant Spring And Cage

    INSTALLING O-RINGS, ABRASION bouncing and erratic seating may occur. Contact Myers for more information. RESISTANT SPRING AND CAGE VALVE DISC OPTIONS Install nitrile O-ring over the threaded section of the seat and position it at Myers Aplex Series acetal resin discs made of DuPont the bottom of the threads.

  • Page 30: Salvage Of Worn Seats

    SALVAGE OF WORN SEATS OTHER PUMP BRANDS Rough valve seat faces may often be renewed by Myers Aplex Series Industries can provide its unique lapping or grinding, if not deeply fluid-cut. (patented) valve to fit nearly all brands and models of multiplex pumps.
  • Page 31 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 32 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 pin Adjust or replace. bearing, wrist pin bushing, plunger, Add oil to proper level.

  • Page 33: 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 34 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 35 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 36 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) PE336K Switchgauge, Murphy 7509-0008-00A Crankshaft...
  • Page 37 Fluid End Assembly (Ductile Iron) MA-95L, MA-120L-HD, 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 38 Fluid End Assembly (Steel Block Weld-Neck Flanges) MA-95L, MA-120L-HD Item Quantity Description Part Number Valve Cover Screw, Ductile Iron 7204-0345-00B Valve Cover, Steel 7204-0403-10B O-Ring, Nitrile Rubber 110-000243-201 1/4" Hex Hd. Pipe Plug, S.S. (optional) 170-014002-405 Liquid End, Forged Steel Weldment 7204-0861-00E 1"...
  • Page 39 Fluid End Assembly (Steel Block Weld-Neck Flanges) MA-120L 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 7204-1239-00E 1"...
  • Page 40 Stuffing Box Assembly Qty. 3 per pump ea. MA-95L, MA-120L-HD, SC-170L, SC-170, RO-185 Stuffing Box Seal, Stuffing Box, Stuffing Box, Stuffing Box, Nickel Gland, Gland, Plunger Baffle Nitrile Rubber *Steel Stainless Steel Alum. Bronze (#4) *Steel Nickel Alum. Bronze Diameter (#2) (#3) (#4)
  • Page 41 Stuffing Box Assembly Qty. 3 per pump ea. MA-120L Stuffing Box Seal, Stuffing Box, Gland Nut, Plunger Baffle Nitrile Rubber Steel Steel Diameter (#2) (#3) (#4) (#5) 2-3/8" 7204-0016-00A 7204-0054-00A 7204-1305-02B 7204-0375-00B GLAND NUT WRENCH 7204-0464-00B 4" Piston Assembly Qty. 3 per pump ea. SC-170L, SC-170DD SC-170L, SC-170DD Item...
  • Page 42 4-1/4" Piston Assembly Qty. 3 per pump SC-170L SC-170L 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) 7204-1057-00K Piston Liner Flange 7204-1054-00B Part of #3 Above Baffle...
  • Page 43 THIS PAGE INTENTIONALLY LEFT BLANK...

  • Page 44: 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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