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Related Manuals for US VACUUM RP50B-WS
Summary of Contents for US VACUUM RP50B-WS
- Page 1 MODEL RP50B-WS Oil Lubricated Rotary Vacuum Pump INSTALLATION OPERATION MANUAL WARNING DO NOT OPERATE BEFORE READING MANUAL US VACUUM PUMPS LLC P.O. BOX 909 CANTON, TX USA 75103 TEL: 888-416-7366 FX: 877-416-7599 EMAIL: USVACUUM@EARTHLINK.NET WWW.USVACUUMPUMPS.COM...
- Page 2 FORWARD This manual contains installation, operation, maintenance and troubleshooting information for the Model RP-50B-WS Rotary Piston Vacuum Pump. Please read it in its entirety before operating the pump. Our Rotary Piston Vacuum Pumps are designed to ensure safety when used properly. It is the responsibility of the user to follow safety-related warnings, cautions, notes and other requirements described in this manual.
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Page 3: Safety Precautions
SAFETY PRECAUTIONS CAUTION: When using PVC pipe or any static enhancing material for exhaust piping, make provisions to safeguard against arcing from static electricity. Arcing can ignite oil vapor that may be present. CAUTION: Do not operate the pump without the belt guard properly attached. Operating the pump without the belt guard secured in place exposes people in the vicinity of the pump to risk from rotating drive parts. -
Page 4: Table Of Contents
TABLE OF CONTENTS SAFETY PRECAUTIONS…………………Page 2 INTRODUCTION…………………...………Page 4 PERFORMANCE SPECIFICATIONS…….Page 6 DESCRIPTIONS…………………………….Page 7 GENERAL INFORMATION……….………..Page 8 START-UP……………………………………Page 10 TROUBLESHOOTING………………...……Page 11 PARTS LIST & EXPLODED VIEWS………Page 15 WARRANTY STATEMENT……………..Page 21... -
Page 5: Introduction
CONGRATULATIONS on your purchase of a new Duravac “RP” Series OIL LUBRICATED, Rotary Piston Vacuum Pump from US VACUUM. Please examine the pump for shipping damage, and if any damage is found, report it immediately to the carrier. If the pump is to be installed at a later date make sure it is stored in a Clean, dry location and rotated regularly. - Page 6 PRINCIPLE OF DESIGN The Duravac RP-50B is a cam (eccentric) and piston (Slide) design. Within the pump, the piston is driven by the cam. The open head which the shaft extends, has a shaft seal set-up to prevent air leakage into the pump and an outboard bearing to handle the belt pull force.
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Page 7: Descriptions
DESCRIPTION The US Vacuum Model RP-50B-WS is a Rotary Piston Single Stage vacuum pump suitable for industrial use in medium & high vacu- um pumping systems. The pump nomenclature stands for RP (Rotary Piston), 50 cfm (pumping capacity), WS for water service. - Page 8 The vacuum piping should be designed to insure that no liquids such as condensate or liquid carryover from the process can reach the pump. If this possibility exists, a knock-out liquid separator should be installed…..contact US Vacuum for recommendations. The best piping for the vacuum side of the pump is made up with flanges using neoprene/fiber gaskets or O-rings. Flanges may be welded or threaded to pipe.
- Page 9 VACUUM CONNECTION (cont.) Typical piping arrangement for pump mounted below system (Fig-2) and for the pump mounted above the system (Fig-3) TYPE OF PIPE JOINTS A) Standard steel piping with welded joints makes the best vacuum piping system. B) Copper piping with sweated fittings and joints can also made vacuum tight and has the advantage of providing a neat, clean vacuum installation.
- Page 10 DISCHARGE PIPING It is recommended that the exhaust be piped horizontally a short distance and tied into a vertical exhaust pipe. The vertical exhaust pipe must be at least 1 ft. long and the bottom end of the vertical exhaust pipe be terminated with a plug or drain valve to allow removal of moisture and contaminated oil before it can accumulate sufficiently to drain back into the pump oil reservoir.
- Page 11 EXCESSIVE HEAT: When the pump is subjected to operating conditions that will cause the oil to be heated above 200 Deg F, the oil will carbonize and become contaminated after a relatively low number of operating hours if standard hydrocarbon oil is used. The higher the temperature, the quicker the oil becomes contaminated and thermally breaks down.
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Page 12: Start-Up
START-UP 1) Be sure the suctions lines are free of foreign matter and perfectly tight. Use inlet protection screens or drop-out traps on new installations where large welded piping is employed. 2) Make sure the pump discharge is not obstructed 3) Check that the cooling water is connected to the pump and available (if operated as water cooling) 4) Check belt tension. - Page 13 Repair Kit includes bearings, shaft seals, gaskets, o-rings, discharge valves & misc. hardware . NOTE: US Vacuum Pumps LLC is not liable for operational failure due to mistakes made by non-US Vacuum personnel during the installation/operation or the utilization of non-US Vacuum parts...
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Page 14: Troubleshooting
TROUBLESHOOTING Before attempting to locate the cause of the of poor ultimate pressure, check the accuracy of the vacuum gauges on the system. TROUBLE Possible cause: The internal parts are worn or The pump does not reach “blank-off” pressure damaged. - Page 15 Possible cause: Cylinder may be flooded with TROUBLE excessive oil due to defective solenoid valve (stuck in open position). Pump runs hot Remedy: Turn pump over by hand to remove ex- Possible cause: Water temperature or flow cessive oil. Check solenoid valve, clean or replace inadequate Possible cause: Oil temperature too low, or Remedy: Check water flow to pump.
- Page 16 RP-50B PUMP PARTS...
- Page 17 MODEL RP-50B Parts List REF# DESCRIPTION CYLINDER PISTON SLIDE PIN ENDPLATE, A ENDPLATE, B SHAFT SHAFT SEAL HOUSING BUSHING WOODRUFF KEY SNAP RING O-RING DISCHARGE VALVES VALVE COVER VALVE COVER GASKET HOLD DOWN PLATE GASKET, HOLD DOWN PLATE BOLTS ROUND COVER PLATE GASKET, COVER SHAFT SEAL...
- Page 18 No employee or representative of seller other than an officer of US Vacuum Pumps LLC is authorized to change this warranty in any way or grant any other warranty. Any such change by an officer of the company must be in writing.
- Page 19 NOTES...