Technical and General Information. Table of Contents

Transcription

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2 Submersible and Dry Mount Pumps Technical and General Information Submersible Elevator Pump Dry Mount Elevator Pump Table of Contents Submersible Pumps (4PIC Pumps) Drawings and Dimensions...3 Performance Charts Specification...6 Dry Mounted Pumps (3D pumps) Drawing and Dimensions...7 Performance Curves Specification...10 Installation Guidelines...11 Elevator Information Submersible Pump (Determining Car Speed for a Pump Model) 4PIC...12 General (Determining Flow Rate from Car Speed)...13 General (Determining Pressure from Gross Loads)...14 General (Effect of Flow Rate on Plunger Speed)

3 Submersible Pump Dimensions (inches) Model Pump Shaft Discharge D 2 I 1 K 2 Q D L T U F G /4 NPT NPT /2 NPT NPT * Model Flange NPT NPT NPT /2 NPT 4.84 Weight (lbs.) A 1 B 1 C C 1 S 1 Y 1 Y 3 Y 4 Net Ship * * A4PICX-276 Pump Dimensions

4 Submersible Pump Performance Data Minimum Flow Rates at Various Pressures for Submersible Elevator 3400 Rpm, 150 SSU Pressure (PSIG) Part Number Pump Model GS USNP38 GPM HP GS USNP46 GPM HP GS USNP50 GPM HP GS USNP56 GPM HP GS USNP41 GPM HP GS USNP49 GPM HP GS USNP36 GPM HP GS USNP42 GPM HP GS USNP46 GPM HP /082 A4PIC-187AJ GPM HP /078 A4PIC-187Y GPM HP /079 A4PIC-187P GPM HP /080 A4PIC-187M GPM HP /081 A4PIC-187 GPM HP /260 A4PIC-217Y GPM HP /259 A4PIC-217P GPM HP /257 A4PIC-217M GPM HP /258 A4PIC-217 GPM HP /266 A4PIC-236G GPM HP /267 A4PIC-236 GPM HP /268 A4PIC-236AS GPM HP /009 A4PIC-276P GPM /012 A4PICX-276P HP /011 A4PIC-276G GPM /013 A4PICX-276G HP *3462/010 A4PIC-276 GPM *3462/014 A4PICX-276 HP * Elevated inlet pressure may be required to prevent cavitation contact Factory. 4

5 Submersible Pump Performance Data Minimum Flow Rates at Various Pressures for Submersible Elevator 3400 Rpm, 150 SSU Pressure (PSIG) Part Number Pump Model GS USNP38 GPM HP GS USNP46 GPM HP GS USNP50 GPM HP GS USNP56 GPM HP GS USNP41 GPM HP GS USNP49 GPM HP GS USNP36 GPM HP GS USNP42 GPM HP GS USNP46 GPM HP /082 A4PIC-187AJ GPM HP /078 A4PIC-187Y GPM HP /079 A4PIC-187P GPM HP /080 A4PIC-187M GPM HP /081 A4PIC-187 GPM HP /260 A4PIC-217Y GPM HP /259 A4PIC-217P GPM HP /257 A4PIC-217M GPM HP /258 A4PIC-217 GPM HP /266 A4PIC-236G GPM HP /267 A4PIC-236 GPM HP /268 A4PIC-236AS GPM HP /009 A4PIC-276P GPM /012 A4PICX-276P HP /011 A4PIC-276G GPM /013 A4PICX-276G HP *3462/010 A4PIC-276 GPM *3462/014 A4PICX-276 HP * Elevated inlet pressure may be required to prevent cavitation contact Factory. 5

6 Submersible Pumps 4PIC Specifications and Features Rotor Housing Aluminum Power Rotor Steel Idler Rotors Pearlitic Iron Operating Pressure 1000 psi maximum Inlet Pressure Submersed in tank Viscosity Minimum 60 SSU Temperature 0 F 180 F Drive Direct Drive Only with submersible motor Rotation Clockwise, as viewed facing pump shaft Mounting Flange mounted directly to submersible motor Discharge Connections Refer to page 3 in this publication Filtration Inlet Strainers are supplied Typical Section Typical Cutaway 6

7 Dry Mounted Pump Dimensions, Rotor Sizes AH Dia. Pump Model A B C D E F G H J K L M N P R A3D A3D G3D G3D d G3D d G3D AG3D AG3D Pump Model U V X AB AC AD AE AF AG AH AJ AK AL AM AN WT (lbs.) A3D A3D G3D c G3D x : G3D x : G3D f x : AG3D x : AG3D x f NOTES: 1. Dimensions are for cast iron cased pumps. 2. U dimensions are subject to standard NEMA tolerances. 3. Dimension AH is weld socket (weld by customer). Removable socket weld flange is included with pump. 4. Top inlet position is standard. 5. A3DB-137 has 1 2 inch NPT inlet and 1 inch NPT outlet, NOT as shown above. 6. A3DB-156 has 2 inch NPT inlet and 1 inch NPT outlet, NOT as shown above. 7. G3DB-187 has 2 2 inch NPT inlet and 1 2 inch NPT outlet, NOT as shown above. 8. All table values are approximate. No tolerances are implied. 7 Key SQ

8 Dry Mounted Hydraulic Elevator Performance Curves Model: 3D-137 Viscosity: 100 SSU Model: 3D-156 Viscosity: 100 SSU Model: 3D-187 Model: 3D-218 Viscosity: 100 SSU 8

9 Dry Mounted Hydraulic Elevator Performance Curves Model: 3D-250 Viscosity: 100 SSU Model: 3D-275 Viscosity: 100 SSU Model: 3D-312 Viscosity: 100 SSU Model: 3D-350 Viscosity: 100 SSU 9

10 Dry Mounted Elevator Pumps Specifications and Features Rotor Housing Iron Power Rotor Ground Alloy Steel Idler Rotors Ground Pearlitic Iron Operating Pressure To 500 psig Belt Drive (see Performance Charts*) To 600 psig (contact Factory for details) Viscosity 100 SSU minimum at maximum temperature** Temperature 0 F 160 F Drive Direct or Belt Rotation Clockwise, facing pump shaft Mounting Any attitude Shaft Seal Mechanical seal with Buna N bellows, carbon rotating face and iron stationary seat Bearing Cartridge-type, permanently grease-packed, single row radial deep groove ball bearing O-Rings Buna N Gaskets Cellulose fiber Filtration mesh suction strainer recommended * Sizes suitable for 600 psi belt drive. Consult Imo for details. ** Lower viscosities may be permissible with review and approval by Imo Pump. Pump Model Chart for Determining Shaft Speed (RPM) from Flow Rate Flow Rate 100 SSU and 200 PSI Pump Model 3D D-137 3D D-156 3D D-187 3D D-218 3D D-250 3D D-275 3D-312 3D-312 3D-350 3D-350 Pump Model Flow Rate 100 SSU and 200 PSI Pump Model 3D-137 3D-137 3D-156 2D-156 3D-187 3D-187 3D-218 3D-218 3D D-250 3D D-275 3D D-312 3D D

11 Dry Mounted Elevator Pumps Installation Guidelines To assure trouble free operations, please follow these guidelines: Mounting Mount pump and motor as integral units on common, rigid baseplate to avoid shifting and misalignment. Isolation pads (bracket to frame) will help reduce vibration. Check motor/pump rotation to avoid pump damage. Belt Drive Sheaves must be balanced and shaft bores must be concentric with belt grooves. Place sheave close to bearing retainer. Avoid sheave misalignment by using straight-edge to ensure alignment. Adjust belt tension to manufacturer s recommendations. Suction Conditions Size piping adequately and avoid multiple fittings. Install mesh strainer on suction line to protect pump. Assure adequate surface area to avoid excessive pressure drop when dirty. Do not exceed pump suction capability to avoid cavitation which causes noise, vibration and pump damage. Lowest oil level of reservoir must cover inletline to prevent vortexing. Place return lines below lowest oil level. Keep reservoir and piping clean at all times. Clean system before each start-up. Vent reservoir through filter/ breather to exclude dirt. Temperature Avoid exceeding oil temperature specifications. (Normal oil temperature range is 60 o F to 135 o F for most installations). Install tank heaters as required. Run bypass lines from hydraulic block or valve to reservoir, not to pump suction. Start-Up Fill pump with oil before start-up. Open suction and discharge valves, bleed system air and start pump under low pressure. Check system for air leaks, especially suction piping. Set pressure valve at lowest pressure consistent with satisfactory elevator operation. Service Hints If operation of the pump is noisy, check the following points: 1. Air entrained in oil, or leaks in suction line. 2. Vortexing or low oil level in reservoir. 3. Restrictions in suction line or clogged strainer. 4. Incorrect alignment of pump and motor. 5. Excessive belt tension or slip. 6. Motor, pump, bracket or other component loose. 7. Unmatched belt set, or unbalanced sheave. 8. Pump suction capability exceeded oil too cold or pump speed excessive. 9. Worn pump. 10. Damaged or unbalanced motor. If there is no oil flow or pressure is too low, check the following points: 1. Restricted pump suction. 2. Control valve damaged or malfunctioning. 3. Excessively cold and viscous oil. 4. Low oil in reservoir. 5. Incorrect motor rotation. 6. Belts slipping. 7. Worn or damaged pump. 11

12 Submersible Pumps Chart for Determining Car Speed Based on Pump Model (ft/min) Operating Conditions: 3400 RPM, 350 PSI, 150 SSU Pump Model Plunger Diameter GPM USNP USNP USNP USNP USNP USNP USNP USNP USNP A4PIC--187AJ A4PIC-187Y A4PIC-187P A4PIC-187M A4PIC A4PIC-217Y A4PIC-217P A4PIC-217M A4PIC A4PIC-236G A4PIC A4PIC-236AS A4PIC-276P* A4PIC-276G* A4PIC-276* *Includes A4PICX design. 12

13 Elevator Performance Chart for Determining Flow Rate (GPM) from Car Speed (ft/min) Car Speed Plunger Diameter Car Speed Req. GPM = Total Area x.0519 x Car Speed Req. Car Speed = (GPM/ Total Area) x Note: Check with cylinder manufacturer for actual cylinder size/displacement. 13

14 Elevator Performance Chart for Determining PSI from Gross Loads** Net Load* Plunger Diameter (inches) Add per 100 lbs Net Load includes: Platform, Sling, Enclosure, Plunger Weight, and Cargo Friction Loss. For maximum PSI, add CAPACITY to above figures. 14

15 Elevator Reference Information Effect of Flow Rate on Plunger Speed 15

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