Magnatex® 3575 Series Operation & Maintenance Manual Mechanical Seal ANSI Process Pumps Phone: 713-972-8666 inquiries@magnatexpumps.com Fax: 713-972-8665 www.magnatexpumps.
TABLE OF CONTENTS SECTION A GENERAL INFORMATION A.1 Preface …………………………………………………………………………………………………….…………….… 1 A.2 Specifications …………………………………………………………………………………………………………..… 2 A.3 Receiving and Inspecting the Pump ……………………………………………………………………….… 3 SECTION B PUMP INSTALLATION B.1 Foundation and Baseplate Alignment ………………………………………..…………………….……… 4 B.2 Alignment ………………………………………………………………………………………………..…………….… 6 SECTION C PREPARATION FOR STARTUP C.1 Checking Rotation ……………………………………………………………………..……………………………… 6 C.
SECTION A GENERAL INFORMATION A.1 PREFACE Magnatex 3575 Series ANSI Pump is a horizontal overhung, end suction and top discharge with an open impeller, which meets the requirements of ANSI B73.1, fabricated with the best materials and continuous inspection. With correct installation, periodic inspection, correct usage and careful maintenance, this pump will yield a long satisfactory service life. WARNING 9 Before performing pump maintenance always make sure power to the driver is locked out.
A.2 SPECIFICATIONS VOLUTE: The volute is top centerline with a fully confined gasket. The foot support is used for maximum resistance to misalignment and distortion from piping loads. However it is important not to impart piping loads on to the pump. IMPELLER: The impeller is fully open and threaded to the shaft. The threads are sealed by a Teflon O‐ ring. Never rotate the pump counter clockwise as the impeller can unscrew and rub on the casing.
A.3 RECEIVING AND INSPECTING THE PUMP Please inspect the pump as soon as it is received and check that everything is in order. File any claims with the transportation company. This is a weighty pump; lifting equipment must be able to adequately support the entire assembly (Fig 2, 3). M a DANGER Pump Model 911 STORAGE REQUIREMENTS Proper storage of your MAGNATEX pump will insure that it is ready for service when needed.
SECTION B PUMP INSTALLATION A pump should be located near the supply of liquid and have adequate space for operation, maintenance and inspection. B.1 FOUNDATION AND BASEPLATE ALIGNMENT FOUNDATION Baseplate mounted pumps are normally grouted on a concrete foundation, which has been poured on a solid footing; foundation bolts commonly used are J – type and sleeve – type. Both designs permit movement for final bolt adjustment.
LEVEL BASEPLATE A. Place one set of wedges or shims on each side of every foundation bolt. The wedges should extend between ¾” and 1 ½” above foundation to allow for adequate grouting. B. Remove liquid and / or debris from anchor bolt holes/sleeve before grouting. If the sleeve type bolts are being used, fill the sleeves with packing or rags to prevent grout from entering. C. Lower Baseplate on to foundation bolts. D.
B.2 ALIGNMENT INITIAL ALIGNMENT CHECKS: (Done prior to operation) 9 Check before grouting the Baseplate to be sure correct alignment is possible. 9 Check after Baseplate is grouted to see if grouting process has altered alignment. 9 After pipes are connected, check to see if strained connections have altered alignment. If so, eliminate piping strain to achieve optimal alignment. FINAL ALIGNMENT: 9 Alignment should be checked after first run when both pump and driver are at operating temperature.
C.2 CHECK IMPELLER CLEARANCE Before starting the pump the impeller clearance must be checked. The pump efficiency is maintained when the proper impeller clearance is set. Impeller front clearance is factory set to predetermined limits. Minimum values for different temperatures appear in the following table. The impeller clearance adjustments are necessary to prevent the impeller from contacting the casing due to differential expansion at higher operating temperatures..
D.2 OPERATING MAGNATEX 3575 PUMP AT REDUCED CAPACITY CAUTION Do not operate pump below minimum rated flows or with suction and/or discharge valve closed. These conditions could cause an explosive hazard due to vaporization of pumpage and can rapidly lead to pump failure and physical injury. RECOMMENDED MINIMUM FLOW FOR MAGNATEX 3575 SERIES PUMPS GPM |M3hr| MAX.IMP.DIA SIZES MODEL 1 x 1‐1/2 ‐ 6 1‐1/2 x 3 ‐ 6 2x3‐6 MAGNATEX 3575S 60HZ 3560 RPM 50HZ 2900 RPM 60HZ 1780 RPM 50HZ 1470 RPM 10 2.3 5 1.
Section E PUMP DISASSEMBLY CAUTION To Prevent Injury 9 Power to the driver should be locked out to prevent accidental startup. 9 Pump operator should be familiar with all safety precautions. 9 Protective equipment should always be worn in case pump is handling fluids that are hazardous and/or toxic. 9 Proper lifting methods should be employed when handling pump components. 9 Heavy work gloves should be worn when handling impellers as they have sharp edges.
E.2 REQUIRED TOOLS • Wrenches 7/16”, ½”, 9/16”, ¾”, 7/8”, and 15/16” • Screwdriver • Pliers • Rubber mallet • Allen wrenches • Snap‐ring pliers • Micrometer • Dial indicator • Bearing puller • Brass drift punch • Lifting sling • Induction bearing heater • Torque wrench • Heavy work gloves •Cleaning agents • Feeler gauges E.3 DISASSEMBLY Step 1 ‐ Drain all liquid from pump and flush if necessary. Disconnect all auxiliary piping and tubing. Step 2 ‐ Remove coupling guard and disconnect coupling.
Step 10 ‐ Removal of impeller: DANGER Wear heavy work gloves to prevent injury from sharp edges! 9 Remove impeller. 9 Slide shaft wrench over the shaft and key. 9 Looking from the impeller end of the shaft, rotate the impeller clockwise, raising the wrench off the work surface. 9 Now turn it quickly back the other way, banging the wrench handle on the workbench or a solid block until impeller comes loose. Step 11 ‐ Remove volute gasket and discard. (Replace with new gasket during re‐assembly.
SECTION F PUMP ASSEMBLY All pumps parts should be inspected before reassembly. Check that all parts are clean before assembly. F.1 ASSEMBLY OF BEARING FRAME Step 1 –Install all threaded plugs in bearing frame (sight oiler plug, for oil mist connection plug, oil fill plug, oil drain plug, relief plug and oil cooler inlet and outlet plugs. Step 2 –Install bearing frame foot and bolts, hand tighten. F.2 ASSEMBLY OF ROTATING ELEMENT Step 1 –For the models 3575S and 3575M: Install outboard bearing on shaft.
Step 10 –Check that the shaft turns freely. Step 11 –Before installing the outboard labyrinth seal, make sure that the grooved edges on the shaft are smooth in order to protect outboard labyrinth seal packing. Step 12 –Install outboard labyrinth seal in bearing housing with packing adjustment type “O”. The groove for oil drainage must be oriented downwards.
SECTION G PUMP DRAWINGS G.1 DIMENSIONAL DRAWING MAGNATEX 3575 SERIES PUMPS 1x 1‐1/2 – 6 1‐1/2 x 3 – 6 MAGNATEX 3575S MAGNATEX 3575M & 3575L MAGNATEX 3575XL SUCTION SIZE SIZE DISCHARGE SIZE FRAME ANSI DESIGNATION GENERAL DIMENSION AA AB 1 1.5 1.5 3 2x3–6 A B C D E F BORE DIMENSIONS IN INCHES (CENTIMETERS) 13.5 (34.3) 5.25 (13.3) 7.25 (18.5) 6 (15.2) WEIGHT LBS (kgs.) .625 (1.58) 84 (38) 42 (92) 2 3 AA 1 1.5 1‐1/2 x 3 – 8 A8 1.5 3 3x4–7 A70 3 4 11 (28.
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H.1 MODULAR INTERCHANGEABILITY (cont.
H.1 MODULAR INTERCHANGEABILITY (cont.
ITEM QTY PER PUMP H.
SECTION I MAINTENANCE, OPERATIONS AND REBUILD CHECKLIST I.1 ‐ OPERATION CHECKS LUBRICATION MAGNATEX 3575 SERIES OIL SUMP CAPACITY Recommended lubricants: OIL: ISO VG68 High Quality turbine oil. For pumpage temperatures above 250°F (121°C) use synthetic oil GREASE: NLGI No.2, sodium or lithium based Model 3575S 3575M oz. 16 42 ml. 475 1250 3575L 48 1425 3575XL 96 2850 MAGNATEX 3575 SERIES RELUBRICATION INTERVALS (OIL) Power End Type Mineral Oil Synthetic Oil Regreaseable Standard 3mo. 6mo.
I.2 – IMPELLER CLEARANCE SETTINGS It is imperative that these procedures for proper impeller clearance are followed. Improper setting of the impeller clearance can result in sparks, greater heat generation and equipment failure.
6. Zero out dial indicator. 7. Evenly back off each jack bolt and tighten locking bolts to move the impeller away from the stuffing box cover or seal chamber until the dial indicator reads a .060” clearance. 8. Evenly turn jack bolts and tighten jam nuts. 9. Verify shaft turns freely. 10. Install Coupling. 11. Install Coupling guard. FEELER GAUGE METHOD 1. Remove coupling guard. 2. Remove coupling. 3.
I.3 – REBUILD CHECKS BEARING FIT AND TOLERANCES MAGNATEX 3575 SERIES BEARING FIT AND TOLERANCES MODEL SHAFT O.D. INBOARD BEARING I.D. INBOARD FRAME I.D. INBOARD BEARING O.D. INBOARD SHAFT O.D. OUTBOARD BEARING I.D. OUTBOARD HOUSING I.D. OUTBOARD BEARING O.D. OUTBOARD 3575S in.(mm) 1.3785 (35.013) 1.3781 (35.002) 0.0010 (0.025) TIGHT 0.0001 (0.002) TIGHT 1.3780 (35.000) 1.3775 (34.988) 2.8346 (72.000) 2.8353 (71.987) 0.0012 (0.032) LOOSE 0.0000 (0.000) LOOSE 2.8346 (72.000) 2.8341 (71.987) 1.1815 ( 30.
TORQUE VALUES MAGNATEX 3575 SERIES TORQUE VALUES Location (370)Casing bolts (370B) Frame to Adapter Bolts Bearing Clamp ring Bolts (236A) Duplex bearing only (371C) Bearing End Covers (265) Dynamic Seal Cap Screw 6” 3575S 8” 3575S 3575L, 3575M 3575XL 3575S, 3575M 3575L 3575XL 3575S, 3575M, 3575L 3575XL ‐ 29 ‐ Lubricates Threads Dry Threads 30FT‐LBS (40 N∙m) 20FT‐LBS (27 N∙m) 30FT‐LBS (40 N∙m) 30FT‐LBS (40 N∙m) 20FT‐LBS (27 N∙m) 10IN‐LBS (1.1 N∙m) 55IN‐LBS (6.
Magnatex Pumps, Inc. “Since 1985 your process reliability has been our #1 priority.” MAXP Series ANSI 3575 Series ANSI (Magnetic Drive) Max. Flow: 2000 gpm Max. Head: 470 feet Temperature: -150°F to 800°F Max. Power: 200 hp Materials of Construction: Carbon Steel 304 & 316 Stainless Steel Alloy 20, Hastelloy® equivalent, Monel, Titanium (Mechanical Seal) Max. Flow: 5000 gpm Max. Head: 720 feet Temperature: up to 700°F Max.
