Dixon ExD Series Instruction & Operation Manual

Centrifugal pump
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Instruction & Operation Manual
ExD Series Centrifugal Pump
Read and understand this manual prior to
installing, operating or servicing this equipment
July 2018

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Summary of Contents for Dixon ExD Series

  • Page 1 Instruction & Operation Manual ExD Series Centrifugal Pump Read and understand this manual prior to installing, operating or servicing this equipment July 2018...
  • Page 2: Table Of Contents

    Make sure the parts are properly matched to the equipment series, model, serial number and revision level of the equipment. Safety labels are placed on every pump. Do not remove any labeling on any ExD Series pump. Replace any label that is missing.
  • Page 3: Care Of Stainless Steel

    PUMP Care of Stainless Steel The stainless steel components in Dixon Sanitary equipment are machined, welded and assembled by skilled craftsmen using manufacturing methods that preserve the corrosion-resistant quality of the stainless steel. Retention of corrosion-resistant qualities under processing conditions requires regular attention to the precautions listed below.
  • Page 4: Introduction

    Series centrifugal pump. The Dixon ExD Series centrifugal pump is made up of two sections: the pump components (wet end) and the motor. The pump is mounted to the motor with a stainless steel adapter and is coupled to the motor shaft with a stainless steel shaft sleeve and stub shaft.
  • Page 5: Technical Information

    • nominal speed: up to 3500 RPM – 60 Hz Motor Information • Dixon ExD Series centrifugal pumps use standard NEMA TENV/TEFC C-face electric motors • motors are available in a variety of different options including washdown, explosion proof, premium efficiency, general purpose and severe duty •...
  • Page 6: Dimensions

    8.25 3.13 3.63 ExD 230 254/256TC 18.00 1.00 9.63 6.25 10.00 8.25 0.53 ** Contact Dixon Sanitary for detailed drawing. • all dimensions are given in inches • all dimensions given are for guidance only Instruction & Operation Manual 800.789.1718...
  • Page 7 PUMP Dimensions All dimensions are given in inches Dimensions In Inches Casing Drain Pump Model Option ØB Option A 45° ExD 100/110 3.71 0.50 1.13 Option J 90° Option A 45° ExD 120/130 5.06 0.50 1.13 Option J 90° Option A 45°...
  • Page 8: Installation

    Installation Unpacking • Carefully unpack all parts of the pump and inspect for damages that may have occurred during shipment. Report any damages to the carrier immediately. • The ports on the pump are protected with a plastic cover. If any covers are missing or damaged, inspect the ports on the pump thoroughly for any damage.
  • Page 9: Assembly

    PUMP Assembly See page 4 for exploded view. Attach item (X1) motor flange to item (X2) adapter using the (4) socket head cap screws item (X1A). Ensure that the drain hole in the bottom of the adapter (X2) and the drain slot in the back of the motor flange (X1) are facing the same direction. Setting the shaft sleeve: a.
  • Page 10 Assembly ... continued from previous page Install the stationary seal assembly: a. Install the stationary inboard gasket (P80R) into the bottom of the pump casing (X7) stationary seal cavity. Ensure that the gasket is sitting flat and it centered properly by the slight counter bore in the bottom of the seal cavity. b.
  • Page 11 PUMP Assembly Recommended Torque Values Key No. Part Number Description Pump Models Torque Value ExD 100 - 110 ExD 120 - 130 X1A-100-FAB 100 series flange to adapter bolts 20 ft.-lbs. 28 N-m ExD 200 - 210 ExD 220 - 230 ExD 100 - 110 100 series flange to motor bolts and X1B-100-FMB56...
  • Page 12: Installation

    Installation Optional Leg Kit Installation and Leveling The pump can be easily leveled by installing the optional leg kit. Using an adjustable wrench, fit the wrench to the wrench flat shown in the diagram below. When viewed from the top, turn the wrench in a counter-clockwise direction to lower the leg, or clockwise direction to raise the leg.
  • Page 13 PUMP Installation Piping: General Guidelines Improper piping can lead to a number of PROXIMITY problems with pump performance which could lead to increased maintenance costs. VOLUTE • Ensure piping is independently supported at both the suction TUBING and discharge ports of the pump. (see the diagram at right) HANGER •...
  • Page 14 Installation Piping: Suction Guidelines ... continued from previous page • To prevent air leaks, ensure all joints in suction line are well sealed. • Use an eccentric reducer with straight side up to prevent air pockets from forming which will result in a decrease in pump efficiency.
  • Page 15: Electrical

    • Verify pump rotation. An arrow sticker is supplied with every pump to show correct pump rotation. If the arrow stickers are missing, contact Dixon Sanitary for a replacement. • Correct rotation is counter clockwise when facing pump inlet connection.
  • Page 16: Pump Operation

    Operation Priming the Pump To avoid damage to the pump, the pump casing must be flooded with liquid BEFORE starting the pump. Note: This is not a self priming pump. Other means must be installed to prime the pump. Fluid supply above the pump: Open supply line isolation valve.
  • Page 17 PUMP Operation Priming the Pump Fluid supply below the pump: Close discharge valve and open air vents. Open valve in external priming supply line. Close once liquid flows from vent valves. Close vent valves. Turn off priming supply line. Start pump. If the fluid supply is above the pump see page 16.
  • Page 18: Recommended Maintenance

    Operation Starting the Pump Ensure pump suction is flooded using either method as explained in the previous priming section. Check for any closed valves or obstructions in the suction and discharge lines. Start the motor. Verify liquid is flowing and there is no piping connection or mechanical seal leaks. Adjust throttling valve on discharge line to desired flow.
  • Page 19: Motor Maintenance

    PUMP Recommended Maintenance Motor Maintenance Proper motor maintenance is a critical part of maintaining the entire motor/pump assembly. If the motor is not properly maintained, the potential failure of the motor’s mechanical components can transmit to the pump and possibly cause issues with sealing and general pump operation.
  • Page 20: Disassembly

    Disassembly Remove the adapter guards: Remove the guard screws using a phillips screwdriver, remove the two safety guards (X3) attached to the adapter. Remove the front cover from the casing: Remove the front cover wing nuts (X10) using an adjustable wrench. Remove the front cover O-ring (X9A) from the front cover using a pick tool if necessary.
  • Page 21: Casing Drain Options

    PUMP Casing Drain Options Drain Option A Drain Option J Drain Option K Drain Option D Drain Option J Shown with Drain Option D Shown with Diaphragm Valve Diaphragm Valve Note: All drain options are available with a diaphragm valve as an option. Specifications for the valve need to be provided at time of request.
  • Page 22: Troubleshooting

    Troubleshooting Dixon Sanitary ExD Series pumps are manufactured and inspected to meet sanitary standards. Occasional problems may arise. The following guide will help determine the possible cause and offer suggestions on corrections to maximize the performance of your pump. In case of any electric motors issues, contact the motor manufacturer directly. If you have any questions or concerns in regards to your ExD Series pump, we encourage you to contact Dixon Sanitary.
  • Page 23 Excessive air in fluid Make necessary adjustments in the system to ensure air is removed before material reaches the pump. Wrong impeller diameter was Contact Dixon Sanitary. selected Product is more viscous than Contact Dixon Sanitary. initially thought...
  • Page 24: Model And Part Numbers

    Leg kits will not be assembled. 31 – 30 3500 32 – 40 3500 • Please note, if there are options that are not listed above, please contact Dixon 33 – 50 3500 Sanitary for availability and pricing. 34 – 60 3500 Instruction &...
  • Page 25: Exd 100 / 110

    PUMP Model and Part Numbers ExD 100 / ExD 110 Key No. Part Number Description QTY/Assembly X1-100-5614AMF 100 series adapter to motor flange 56C and 143TC to145TC X1 * X1-100-18AMF 100 series adapter to motor flange 182TC to 184TC X1A-100-FAB 100 series flange to adapter bolts X1B-100-FMB56 100 series flange to motor bolts and lock washers 56TC to 140TC frame...
  • Page 26: Exd 120 / 130

    Model and Part Numbers ExD 120 / ExD 130 Key No. Part Number Description QTY/Assembly X1-100-5614AMF 100 series adapter to motor flange 56C and 143TC to 145TC X1 * X1-100-18AMF 100 series adapter to motor flange 182TC to 184TC X1A-100-FAB 100 series flange to adapter bolts X1B-100-FMB56 100 series flange to motor bolts and lock washers 56TC to 140TC frame...
  • Page 27: Exd 200 / 210

    PUMP Model and Part Numbers ExD 200 / ExD 210 Key No. Part Number Description QTY/Assembly X1-200-1825AMF 200 series adapter to motor flange 182TC to184TC to 254TC to 256TC X1A-100-FAB 100 series flange to adapter bolts X1B * X1B-100-FMB18 100 series flange to motor bolts and lock washers 180TC to 250TC frame X2-200-ADP 200 series adapter X2A-200-ACB...
  • Page 28: Exd 220 / 230

    Model and Part Numbers ExD 220 / ExD 230 Key No. Part Number Description QTY/Assembly X1-200-1825AMF 200 series adapter to motor flange 182TC to 184TC to 254TC to 256TC X1A-100-FAB 100 series flange to adapter bolts X1B * X1B-100-FMB18 100 series flange to motor bolts and lock washers 180TC to 250TC frame X2-200-ADP 200 series adapter X2A-200-ACB...
  • Page 29: Repair Kits

    PUMP Repair Kits ExD Series Repair Kits 1 - Rotary Seal (P80) 1 - Seal Spring (P80C) 1 - Inboard Gasket (P80R) 1 - Seal Cup (P80A) 1 - Seal Seat (P80N) 1 - Impeller O-ring (X8A) 1 - Seal O-ring (P80B)
  • Page 30: Warranty

    No action may be brought against Dixon for an alleged breach of warranty unless such action is instituted within one (1) year from the date the cause of action accrues.
  • Page 31 PUMP Notes Instruction & Operation Manual 800.789.1718...
  • Page 32 Dixon, founded in 1916, is a premier manufacturer and supplier of hose couplings, valves, dry-disconnects, swivels, and other fluid transfer and control products. The company’s global reach includes a wide range of products for numerous industries including petroleum exploration, refining, transportation, chemical processing, food &...

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