OMAC B110 - User Manual

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O.M.A.C. s.r.l.

Via Giovanni Falcone, 8 42048 Rubiera (RE) - Italy Tel.0522/629371 - 629923 Fax 0522/628980

E-mail:info@omacpompe.com SitoWeb:www.omacpompe.com

1

Rev.4 del 01/2011 O.M.A.C. s.r.l.

Operation and Maintenance

B Series

Lobe Positive Displacement

Group Pump Unit

Translation from the Original Instructions

O.M.M. B SERIES rev.4 01/2011 All rights reserved

O.M.A.C. S.R.L.

RUBIERA (RE) - ITALY

Table of Contents

Other manuals for OMAC B110

Installation, Operation And Maintenance Manual52 pages

Questions and Answers

U
urogersSep 8, 2025
Why is the GPVL of my OMAC B110 Water Pump blocking just starting?
- C
  carriethompsonSep 8, 2025
  If your OMAC Water Pump's GPVL is blocking just starting, there might be several reasons. Excessive medium viscosity can cause this; decrease the speed of the pump and increase the temperature of the medium. Low media temperature can also be a factor; increase the temperature of the medium and heat the pumping case (within the limits given by the manufacturer). Check for excessive back-pressure by removing possible obstructions in the outlet piping, increasing the piping diameter, and reducing its length and the number of bends. Worn-out or untimed gears can also cause the GPVL to block; replace the gears or time them according to the instructions. If parts are in contact in the pumping case, check that the design pressure coincides with the operating pressure.
L
lauralongSep 12, 2025
What to do if my OMAC Water Pump is still overheating?
- C
  Christine LittleSep 12, 2025
  If your OMAC Water Pump continues to overheat, even after initial troubleshooting, check if parts are in contact in the pumping case, and ensure that the design pressure coincides with the operating pressure. Also, examine the relief valve for leaks; check its setting, clean sealing parts, and substitute worn parts if necessary.
D
Dr. William Peterson DDSSep 13, 2025
What causes fast seals wear in my OMAC Water Pump?
- A
  Adam ArnoldSep 13, 2025
  If your OMAC Water Pump is experiencing fast seal wear, it could be due to a few reasons. The presence of suspended particles in the medium can cause this; clean the suction piping and install a filter on it. If the packing gland is too tight, this can also lead to fast seal wear; loosen the packing gland and tighten it correctly, following the instructions. Insufficient flushing seal liquid level can be another cause; check the flushing seal liquid and, if necessary, increase its flow-rate.
W
william26Nov 16, 2025
What to do if my OMAC B110 has no flow-rate?
- J
  John LeonardNov 16, 2025
  If your OMAC Water Pump has no flow rate, first check if the rotation direction is wrong and invert it, if needed. Also, the pump may be unprimed; in this case, fill the pumping case and feeding piping with liquid, expelling air. Insufficient N.P.S.H. could be another cause, so increase the head and the piping inlet diameter, reduce the suction piping length and the number of bends, and decrease the speed of the pump and the temperature of the medium, ensuring the temperature decrease suits the motor power. The presence of air in the suction could also be the reason; increase the medium level and lower the suction opening position. Check for a dirty or blocked valve or suction filter and clean the filters if necessary. Finally, a leaking relief valve can cause this issue; check its setting...
G
Gary WilliamsNov 19, 2025
Why is my OMAC Water Pump overheating?
- J
  jonathansimmonsNov 19, 2025
  If your OMAC Water Pump is overheating, several factors could be responsible. Excessive medium viscosity can cause overheating; decrease the pump speed and increase the medium temperature. High medium temperature is another potential cause; decrease the medium temperature and cool the pumping case. Check for excessive back-pressure by removing obstructions in the outlet piping, increasing the piping diameter, and reducing its length and the number of bends. A too-tight packing gland can also lead to overheating; loosen the packing gland and tighten it correctly, following the instructions. Ensure that the piping is not pressing on the pumping case by checking the piping alignment, fitting flexible expansion joints if necessary, and fixing the piping on the plant structure. Misalignment of ...
G
gonzalezhaleyNov 21, 2025
Why is my OMAC Water Pump so noisy and vibrating?
- J
  Jaime HoltNov 21, 2025
  If your OMAC Water Pump is experiencing noise and LDPU vibration, consider the following potential causes. Insufficient N.P.S.H. (Net Positive Suction Head) can lead to these issues; increase the head and piping inlet diameter, reduce the suction piping length and the number of bends, and decrease the pump speed and medium temperature, ensuring the temperature decrease suits the motor power. Medium evaporation in the inlet or air entering the inlet can also cause noise and vibration; increase the head and piping inlet diameter, reduce the suction piping length and the number of bends, decrease the pump speed and medium temperature, check and tighten suction piping connections, and tighten the packing glands, replacing them if necessary. The presence of air in the suction or not enough liqu...
R
ryansmithNov 24, 2025
What causes low flow-rate in my OMAC Water Pump's LDPU?
- W
  watkinsmarkNov 24, 2025
  If your OMAC Water Pump's LDPU has a low flow-rate, several factors could be responsible. Insufficient N.P.S.H. could be the cause; increase the head and the piping inlet diameter, reduce the suction piping length and the number of the bends, decrease the speed of the pump and the temperature of the medium, and check that the increase (caused by the decreasing temperature) is suitable to the motor power. If the medium evaporates in the inlet, take the same steps as for insufficient N.P.S.H. Air entering in inlet can also cause low flow; check and tighten suction piping connections and tighten the packing glands, replacing them if necessary. If there's air in the suction, fill pumping case and feeding piping with liquid, expelling air. A low liquid level in the tank in the suction requires ...
A
Andrea WadeNov 27, 2025
Why is the motorization of my OMAC B110 overheating?
- G
  guerreroaudreyNov 27, 2025
  If the motorization of your OMAC Water Pump is overheating, it could be due to several reasons. Low medium temperature might be the cause; increase the temperature of the medium and heat the pumping case, staying within the manufacturer's limits. Excessive medium viscosity can also lead to overheating; decrease the speed of the pump and increase the temperature of the medium. Check for excessive back-pressure by removing obstructions in the outlet piping, increasing the piping diameter, and reducing its length and the number of bends. A too-tight packing gland can also cause this issue; loosen the packing gland and tighten it correctly, following the instructions. Excessive pump speed can contribute to overheating; decrease the speed of the pump. Ensure that the piping is not pressing on t...
J
Jonathan SharpDec 1, 2025
What causes the seizure of my OMAC B110?
- A
  Adam TateDec 1, 2025
  If your OMAC Water Pump experiences seizure, it could be due to several reasons. Excessive medium temperature can cause this; decrease the temperature of the medium and cool the pumping case. The presence of suspended particles in the medium can also lead to seizure; clean the suction piping and install a filter on it. Excessive back-pressure can be a factor; remove any obstructions in the outlet piping, increase the piping diameter, and reduce its length and the number of bends. A packing gland that is too tight can also cause seizure; loosen the packing gland and tighten it correctly, following the instructions. Check that the piping is not pressing on the pumping case by verifying the piping alignment, fitting flexible expansion joints if necessary, and fixing the piping on the plant st...
M
Michael WilkinsonDec 3, 2025
Why does my OMAC B110 Water Pump GPVL have high power absorption?

Summary

INTENDED USE

CHAPTER 1: MACHINE AND PUMPED FLUID SPECIFICATIONS

1.3 Technical features

Detailed technical specifications of the LDPU, including performance and dimensions.

1.4 Intended use

1.7 Indication of the safety systems

Details the integrated safety features designed to protect operators and the unit.

1.11 B Series lobe positive displacement pump optional features

CHAPTER 2: TRANSPORTATION OF THE B SERIES LDPU

CHAPTER 3: INSTALLATION OF THE B SERIES LDPU

3.3 Installation and assembly

Step-by-step instructions and procedures for installing and assembling the LDPU.

3.4 Cleaning and Hygiene of the LDPU

Methods for cleaning and sanitizing the LDPU, especially for alimentary use.

3.5 Connection to energy sources

Procedures for connecting the LDPU to electrical, hydraulic, and pneumatic power sources.

3.7 Installation and pre-start check: operation test

Final checks and test procedures before initial operation after installation.

CHAPTER 4: USE OF THE B SERIES LDPU

4.1 Intended use

4.2 Controls

Explanation of the controls, indicators, and symbols on the LDPU's electric panel.

4.3 LDPU volumetric capacity adjustment methods

4.5 Cycle start instructions

Steps and checks required before starting the LDPU cycle.

4.10 Residual risks

4.11 Dangers generated by use

Lists incorrect uses of the LDPU and the associated dangers.

4.13 Management of emergency situations

Instructions on how to react and stop the LDPU in emergency scenarios.

CHAPTER 5: MAINTENANCE OF THE B SERIES LDPU

5.1 Troubleshooting and solving problems

Guide to diagnosing and resolving common failures and operational issues.

5.2 Instruction for carrying out checks

Routine checks and inspections to ensure proper LDPU performance and longevity.

5.3 Periodic check of the safety and emergency devices

5.6 Test and checks

5.7 Disassembly and assembly operations of B100 size pump

Detailed steps for disassembling and reassembling the B100 model pump.

5.8 Disassembly and assembly operations of B1;B2;B3;B4;B470;B490 pump

Procedures for the disassembly and assembly of specific B Series pump models.

5.9 Disassembly and assembly operations of B550;B660;B680 size pump

Steps for the disassembly and assembly of the B550, B660, and B680 pump sizes.

CHAPTER 6: DECOMMISSIONING OF THE B SERIES LDPU

6.1 Disconnection from the sources of energy

CHAPTER 7: B SERIES LDPU SPARE PARTS

7.1 List of spare parts and section drawings of the lobe displacement pump

Comprehensive list of spare parts, including codes and exploded view drawings.

CHAPTER 8: ASSISTANCE

CHAPTER 9: WARRANTY

OMAC B110 Specifications

General

Brand	OMAC
Model	B110
Category	Water Pump
Language	English

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