Doseuro SR Series - User Manual

Questions and Answers

C
Christopher AlexanderAug 18, 2025
Why is my Doseuro SR making excessive noise?
- T
  tammyharrisonAug 18, 2025
  If your Doseuro Water Pump is making excessive noise, start by checking for air entering the pump head, inspecting the suction pipe, pipe junctions, valve rod seals, and instrument connections. If air is entering through the stuffing box, adjust or replace it. Inspect the valve units for any foreign material and clean or replace components as needed. Replace worn parts if the valves are lifting excessively. If the noise is due to the pressure relief valve or other accessories in the discharge pipe, consider that a quick closing of a valve, solenoid valve, or cock can produce a water hammer. In that case, a pulsation dampener before the back pressure valve may be required, or a different type of valve may be needed.
A
Abigail Schneider DDSAug 21, 2025
What to do if I see fluid leak from the hole under the lantern of Doseuro SR Water Pump?
- S
  Sandra ButlerAug 21, 2025
  If you notice fluid leaking from the hole under the lantern of your Doseuro Water Pump, it could be due to a damaged piston seal gasket or a scratched piston. The solution is to replace the seal gaskets or the piston.
T
Thomas BurtonAug 25, 2025
What causes the pumped liquid to mix with hydraulic chamber oil in Doseuro SR?
- J
  Joanna AtkinsAug 25, 2025
  If you observe the pumped liquid mixed with hydraulic chamber oil in your Doseuro Water Pump, it's likely that the diaphragm is broken. You should evaluate the condition of the components. If damaged, replace the diaphragm and any "OR", the oil reservoir, the piston, and the seal gaskets. Then, run the filling procedure.
M
Melinda WhiteAug 27, 2025
Why is the liquid pumped leaking from the hole under the lantern in my Doseuro Water Pump?
- D
  davisanneAug 28, 2025
  If the liquid pumped is leaking from the hole located under the lantern of your Doseuro Water Pump, it indicates that the diaphragm is broken. Replace the diaphragm and evaluate the state of components, replacing them if damaged.
M
Michael NicholsonAug 31, 2025
What does it mean if the recirculation valve oil visibly oscillates downwards in Doseuro SR?
- J
  Justin BakerAug 31, 2025
  If the recirculation valve oil visibly oscillates downwards in your Doseuro Water Pump, it suggests an obstruction on the suction path or excessive pressure drops from the hydraulic circuit. Calibrate the RESET valve and check the filter and shut-off valves installed along the path.
S
Susan SharpSep 3, 2025
What does it mean if the recirculation valve oil visibly oscillates upwards in Doseuro SR?
- C
  Christopher WatsonSep 3, 2025
  If the recirculation valve oil visibly oscillates upwards in your Doseuro Water Pump, it indicates an obstruction on the delivery path or excessive pressure drops from the hydraulic circuit. Calibrate the RECIRCULATION valve and check that the shut-off valves installed along the path are open.
R
Robin MurraySep 12, 2025
What to do if pumped liquid comes out from the hole under the lantern of Doseuro Water Pump?
- D
  danielterrellSep 12, 2025
  If pumped liquid is coming out from the hole under the lantern of your Doseuro Water Pump, the diaphragm is likely broken. Replace the diaphragm and assess other components for damage, replacing them as needed.
J
Jacqueline PopeNov 13, 2025
How to fix low discharge pressure and low flow rate in Doseuro Water Pump?
- A
  avaughanNov 14, 2025
  To address low discharge pressure and flow rate in your Doseuro Water Pump, start by cleaning the suction filter and inspecting the suction pipe and feed tank for any obstructions or partially closed valves. Also, check the pressure relief valve for leaks and switch off the pump if necessary. Ensure the pump is fully primed by verifying the suction height, adhering to the NPSHr value, and installing a suction diaphragm. Verify the correct wiring sequence on the motor plate and check the phases. Inspect and clean or replace dirty pump valves. Replace any damaged piston seal gaskets or the piston itself. Examine the suction pipe for air intake, checking pipe junctions, valve rod seals, and instrument connections, and verify the pipe diameter and route. Increase suction pressure or reduce suc...

Summary

1 - PREFACE

1.1 - General prescriptions

General guidelines for safe and appropriate use of the dosing pump.

1.2 - Technical assistance

Information on obtaining support, spare parts, and service for Doseuro pumps.

1.3 - Electric motors

Details on electric motors used with pumps, including liability.

1.4 - Liability

Manufacturer's disclaimer regarding improper use, modifications, or non-compliance.

Declaration of Conformity

Statement confirming compliance with relevant EU directives and standards.

2 - REQUIREMENTS FOR USE

2.1 - General safety warnings

Essential safety instructions for operating industrial machinery.

2.2 - Symbols

Explanation of pictograms and symbols used in the manual for safety.

3 - SAFETY STANDARDS DURING USE

3.1 - Clothing

Specifies required personal protective equipment (PPE) for operators.

3.2 - Minimum qualification of personnel

Defines the necessary skills and training for users and operators.

4 - USING THE DOSING PUMPS

4.1 - Intended use

Defines the primary application and purpose of the dosing pumps.

4.2 - Intended and unintended pump use

Clarifies acceptable applications and warns against misuse.

4.3 - Usage conditions

Outlines environmental and operational parameters for pump functionality.

4.4 - Machine description

Provides an overview of the pump's mechanical and operational principles.

4.5 - Pump description

Details the main components and features of the dosing pump.

4.6 - Dosing pumps SR series

Introduces the SR series of spring-return dosing pumps.

4.7 - Identification plate

Explains how to identify the pump using its serial number and data plate.

4.8 - Sound vibration

Details noise emission levels and measurement standards for the pumps.

4.9 - Maximum operating temperature pump heads

Specifies maximum operating temperatures for different pump head materials.

4.10 - Technical data

Provides detailed technical specifications and performance data for pump models.

5-TRANSPORT AND STORAGE

5.1 - Pump delivery

Procedures for receiving and verifying pump packages upon delivery.

5.2 - Lifting and handling

Safety guidelines and recommendations for lifting and moving pump packages.

5.3 - Material storage

Requirements for storing pumps to maintain their condition and prevent damage.

5.4 - Handling for installation

Precautions and steps for safely handling pumps during installation.

6- PUMP INSTALLATION

6.1 - Optimum installation conditions

Environmental and site requirements for optimal pump setup.

6.2 - Pump location

Guidelines for selecting and preparing the physical location for pump installation.

7 - CONNECTION OF THE PUMP TO THE SYSTEM PIPES

7.1 - Block removal

Steps to remove protective caps before connecting pump piping.

7.2 - Connection to the suction pipe

Instructions for correctly connecting the pump's suction piping.

7.3 - Discharge pipe connection

Recommendations for proper and efficient discharge pipe installation.

7.4 - Leak recovery

Safety measures for managing potential liquid leaks and spills.

8- DESCRIPTION OF STANDARD PLANT ACCESSORIES

8.1 - Pulsation dampener

Explains the function and benefits of pulsation dampeners.

8.2 - Pressure gauge

Describes the use and importance of pressure gauges for pump monitoring.

8.3 - Safety relief valve

Details the role of safety relief valves in protecting the system.

8.4 - Sampling or draining

Explains methods for sampling or draining fluids for maintenance.

8.5 - Filter

Discusses the function and proper installation of filters for fluid purification.

8.6 - Flowmeter

Describes the function of flowmeters for measuring dosed amounts.

8.7 - Back pressure valve

Explains the purpose of back pressure valves in preventing siphoning.

8.8 - Shut-off valve in the discharge pipe

Details the function and safety considerations of discharge shut-off valves.

9- LUBRICATION

10 - ELECTRICAL CONNECTION

10.1 - Motor connection

Guidelines for safely connecting the pump's electric motor.

11 - PUMP ADJUSTMENT

11.1 - Stroke variation with manual system

How to adjust pump flow rate using manual controls.

11.2 - Stroke variation with servo control

Information on adjusting pump flow rate using servo controls.

12 - OPTIONAL ACCESSORIES

12.1 - Control with inductive proximity sensor

Details on installing and using inductive proximity sensors for pump control.

13- PROCEDURE BEFORE START-UP

13.1 - Commissioning

Steps and checks required before starting the pump for the first time.

13.2 - Problems upon commissioning

Troubleshooting common issues encountered during initial pump startup.

14 - MAINTENANCE

14.1 - Pump maintenance, repairs

General procedures and safety for pump maintenance and repair tasks.

14.2 - Procedures for maintenance intervention

Essential safety precautions before performing any maintenance work.

14.3 - Residual risks

Identifies potential risks remaining after system emptying and precautions.

14.4 - Spare parts list

Guidance on how to identify and request necessary spare parts.

14.5 - Preventive maintenance

Routine checks and actions to maintain pump performance and safety.

14.6 - Routine maintenance

Table outlining components requiring regular verification and replacement.

14.7 - Valve unit cleaning

Procedures for cleaning and maintaining the pump's valve units.

15 - MAINTENANCE OF DOSING PUMP HEADS

15.1- Maintenance of piston pump heads A

Specific maintenance procedures for piston pump heads (Type A).

15.2 - Maintenance of direct diaphragm pump heads type D

Maintenance steps for direct diaphragm pump heads (Type D).

15.3 - Maintenance of Type B hydraulic diaphragm pump heads

Maintenance procedures for Type B hydraulic diaphragm pump heads.

15.4 - Maintenance of Type BR hydraulic diaphragm pump heads

Maintenance procedures for Type BR hydraulic diaphragm pump heads.

15.5 - Maintenance of Type SD hydraulic diaphragm pump heads

Maintenance procedures for Type SD hydraulic diaphragm pump heads.

16 - BR-SD PUMP HEADS RECIRCULATION VESSEL CALIBRATION

16.1 - Recirculation vessel type VR 4-6 (VR 10 AP) calibration

Steps for calibrating the recirculation vessel for VR 4-6 models.

16.2 - Recirculation tank type VR 10-15-25 (VR 10 HP) calibration

Steps for calibrating the recirculation tank for VR 10-15-25 models.

16.3 - Recirculation tank type VR 40 calibration

Steps for calibrating the recirculation tank for VR 40 models.

16.4 - BR-SD pump heads recirculation vessel tables

Tables detailing recirculation valve types for BR-SD pumps.

17 - DECOMMISSIONING THE PUMP

17.1 - Disposal of components and harmful substances

Procedures for safe disposal of pump components and liquids.

18 - REPAIR ACCOUNT MAINTENANCE

18.1 - Practical recommendations for pump reclamation.

Steps for cleaning and preparing pumps for repair or disposal.

19 - USER INFORMATION

20 - DOSING PUMPS TROUBLESHOOTING TABLES

20.1 - A type piston pumps troubleshooting table

Table for diagnosing and resolving issues with A-type piston pumps.

20.2 - Troubleshooting table for direct diaphragm pumps type D

Table for diagnosing and resolving issues with D-type diaphragm pumps.

20.3- B type pumps with hydraulic diaphragm troubleshooting table

Table for diagnosing and resolving issues with B-type hydraulic diaphragm pumps.

20.4- BR-SD type pumps with hydraulic diaphragm troubleshooting table

Table for diagnosing and resolving issues with BR-SD hydraulic diaphragm pumps.

21 - ATTACHED FORMS

Doseuro SR Series Specifications

General

Category	Water Pump
Model	SR Series
Power Source	Electric
Type	Submersible
Application	Sewage, drainage
Motor Power	0.75 kW - 7.5 kW
Discharge Size	1 inch to 4 inches
Inlet/Outlet Size	1 inch to 4 inches
Voltage	220V, 380V, 415V
Frequency	50 Hz, 60 Hz
Power	0.75kW - 7.5kW
Material	Cast Iron
Weight	15 kg to 80 kg

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