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Speck pumpen VH 180 - User Manual

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Operating Instructions
VU / VH Series
VU 20 - 1600
VH 20 - 1600
Liquid Ring Vacuum Pumps
English translation of the original operating
instructions
Documentation
It is imperative to read the operating instruc-
tions prior to commissioning!
This document as well as all documents in-
cluded in the appendix is not subject to any
update service!
Subject to technical changes.
Speck Pumpen Vakuumtechnik GmbH
Regensburger Ring 6 – 8, 91154 Roth / Germany
PO Box 1453, 91142 Roth / Germany
Phone: +49 (0) 9171 809 0
Fax: +49 (0) 9171 809 10
E-mail: info@speck-pumps.de
Internet: www.speck-pumps.de
Issue:
10/2010
Supersedes issue:
06/2010
Doc./ Item no.:
1096.0799

Table of Contents

Questions and Answers

  • K
    kguerreroAug 16, 2025
    What to do if my Speck pumpen Water Pump motor protection is triggered?
    • M
      Melissa RobinsonAug 16, 2025
      If the motor protection of your Speck pumpen Water Pump is triggered, it could be due to several reasons: * There may be a short-circuit in the motor winding. Check the motor winding. * The motor protection switch might not be correctly set or is defective. Check the setting or replace the switch. * The motor may be overloaded. Check and reduce the operating liquid flow rate. * There could be excessive backpressure in the outlet nozzle. Reduce backpressure. * There might be an excessive share of liquid in the suction flow. Reduce the share of liquid. * The suction-side fitting may be blocked. Open the suction-side fitting.
  • A
    Alexandria MuellerAug 20, 2025
    Why is my Speck pumpen VH 180 motor consuming excessive power?
    • B
      Barry BarkerAug 20, 2025
      Excessive power consumption in your Speck pumpen Water Pump motor can occur due to: * Motor overload: Check and reduce the operating liquid flow rate. * Excessive backpressure: Reduce backpressure in the outlet nozzle. * Excessive share of liquid: Reduce the share of liquid in the suction flow. * Blocked suction-side fitting: Open the suction-side fitting. * High density/viscosity: Use an operating liquid complying with the density recommended in the data sheet. * Impeller rubbing: Disassemble the pump and properly set the inter casing/impeller gap size. * Pump contamination/calcification: Flush, descale, or disassemble the pump and clean it.
  • J
    Jacqueline RichardsAug 23, 2025
    What to do if my Speck pumpen VH 180 is leaking?
    • T
      Teresa DeanAug 23, 2025
      If your Speck pumpen Water Pump is leaking, consider the following potential causes: * A defective shaft sealing. Replace the shaft sealing. * A defective casing sealing. Provide the vacuum pump with new sealing. * Worn-out casing components. Replace the affected components. * Loosened connecting screws or screw plugs. Tighten the screws and replace the sealing.
  • K
    Kathryn WhiteAug 27, 2025
    Why is my Speck pumpen VH 180 Water Pump not producing vacuum?
    • E
      Edward LeeAug 27, 2025
      If your Speck pumpen Water Pump is not producing vacuum, it could be due to: * A lack of operating liquid. Check the operating liquid supply. * A leak in the suction pipe. Check and seal the suction pipe and connections. * The wrong direction of motor rotation. Check the direction of rotation and swap the 2 phases if necessary.
  • J
    Jordan PorterAug 31, 2025
    Why is my Speck pumpen VH 180 Water Pump not running smoothly?
    • M
      Megan VelezAug 31, 2025
      If your Speck pumpen Water Pump isn't running smoothly, here are some possible causes: * Excessive operating liquid flow rate: Reduce the operating liquid flow rate. * Overload in the pipe system: Check the pipe connections, pump fixation, and bearing clearance of the pipe clamps. * Air pocket in the pipe: Change the pipe system layout. * Pump distorted/improperly adjusted: Check and re-adjust the pump. * Resonance vibrations in the pipe system: Check the pipe connections and, if required, use a compensator. * Imbalanced impeller: Balance or replace the impeller. * Deposits on the impeller: Clean or replace the impeller. * Defective pump or motor bearing: Replace the pump or motor bearing.
  • K
    Karen ContrerasSep 7, 2025
    Why is my Speck pumpen VH 180 Water Pump making a strange noise?
    • N
      Nicole SmithSep 7, 2025
      Strange noises from your Speck pumpen Water Pump can result from: * Pump cavitation: Install an anti-cavitation valve or equip the suction pipe with a ventilation valve. * Excessive steam: Reduce the share of steam or provide for condensation upstream the vacuum pump. * Suction-side fitting closed: Open the suction-side fitting or provide for cavitation protection. * Excessive operating liquid flow rate: Reduce operating liquid flow rate.
  • C
    Carlos LinNov 11, 2025
    Why is my Speck pumpen VH 180 motor not starting?
    • H
      huntmanuelNov 11, 2025
      There are several reasons why the motor of your Speck pumpen Water Pump may not be starting: * A phase of the power supply could be interrupted. Check the power supply and the motor. * The motor protection switch may have tripped. Try switching it on. * The motor might be blocked. Inspect the motor. * There might be corrosion inside impeller/inter casing. Use rust remover to overcome the blockage of the pump. * Ice could be inside the pump. Carefully heat up and defrost the pump. * Contaminations or foreign bodies may be present inside the pump. Flush or disassemble the pump and clean it. * The pump may have calcified. Descale the pump. * The impeller could be blocked or defective. Correct the gap size of the inter casing/impeller or replace it. * The motor bearing may b...

Summary

Important Basic Information

Target Groups

Defines user roles and their associated responsibilities for operating the system.

Applicable Documents

Lists relevant documents such as ATEX instructions and declarations of conformity.

Warnings and Symbols

Explains safety levels, warning symbols, and their consequences.

Terminology

Defines key terms used in the operating instructions for clarity.

Safety

Intended Use

Specifies the correct usage and limitations of the vacuum pump aggregate.

Possible Misuse

Details incorrect uses that can lead to damage or hazards.

General Safety Instructions

Provides overarching safety guidelines for operation and maintenance.

Residual Risks

Highlights potential risks that remain even after safety measures.

Special Risks

Covers specific risks like explosive areas and dangerous media.

Design and Functioning

Marking

Explains details on nameplate, ATEX plate, and pump type code.

General Description

Provides a general overview of the VU series vacuum pumps.

Design and Functional Principle

Explains the working principle of liquid ring vacuum pumps.

Shaft Sealing

Details mechanical seals and packing glands used for shaft sealing.

Transport, Storage and Disposal

Transport

Covers procedures for transporting the pump/aggregate safely.

Storage

Provides guidelines for storing the pump/aggregate correctly.

Preservation

Explains the process of preserving the pump for storage.

Removing Preserving Agent

Details steps to remove preserving agents before operation.

Disposal

Outlines the procedures for safe and environmentally friendly disposal.

Set-up and Connection

Preparing Set-up

Covers checks for ambient conditions and installation site preparation.

Set-up with Foundation

Details the process of placing and fixing the aggregate on a foundation.

Set-up without Foundation

Explains how to set up the unit without a dedicated foundation.

Set-up on Torsion-resistant Level Surface;Frame

Describes mounting on a stable surface or frame.

Motor Installation

Covers the steps for installing the motor onto the aggregate.

Planning Pipe System

Guides on dimensioning supports, connections, and pipe lengths.

Connecting Pipes

Details on ensuring clean piping and installing suction/pressure pipes.

Fine Adjustment of Coupling

Explains how to properly align the motor and pump couplings.

Electrical Connection

Covers motor connection and safety precautions for electrical work.

Operation

Preparations for Commissioning

Steps before initial operation, including identifying pump type and filling.

Commissioning

Procedures for the initial switch-on and start-up of the aggregate.

Setting the Operating Liquid Flow Rate

Details on setting flow rates for continuous and open circulation cooling.

Closed Circulation Cooling

Explains the setup for closed circulation cooling systems.

Decommissioning

Procedures for safely taking the pump out of operation.

Re-commissioning

Steps to restart a pump after a period of inactivity.

Operating Stand-by Aggregate

Guidelines for maintaining stand-by units.

Maintenance and Servicing

Monitoring

Outlines inspection intervals and checks for proper operation.

Lubrication Intervals for Rolling Bearings

Specifies lubrication schedules for bearings based on type and hours.

Rinsing off Contaminations

Procedures for cleaning minor and major fine-grained contaminations.

Preventing Calcification

Explains how to prevent calcification and its effects.

Disassembly

General safety and procedures for pump disassembly.

Return to Manufacturer

Steps for returning the unit to the manufacturer for service.

Spare Parts

Information on ordering spare parts and required data.

Pump;Aggregate Repairs

Guidelines for assembly during repair processes.

Troubleshooting

Motor Does Not Start

Lists causes and rectifications for motor starting issues.

Excessive Power Consumption of the Motor

Addresses causes for high motor power usage and solutions.

Pump Does Not Produce Vacuum

Explains reasons for lack of vacuum and how to fix them.

Insufficient Vacuum

Details causes for low vacuum and corrective actions.

Strange Noise

Identifies causes of unusual noises and their resolutions.

Leaking Pump

Covers causes of leaks and how to repair them.

Pump Does Not Run Smooth

Lists issues affecting smooth operation and their fixes.

Technical Data

Operating Limit Values

Presents operational limits for various pump types.

Weight

Lists the weights of different pump types.

Sound Level

Provides measured surface sound pressure levels for various models.

Drive Power

Details rated motor power, speed, and direction of rotation.

Operating Liquid

Specifies requirements for the operating liquid, including pH and delivery.

Filling Volume

Lists required filling volumes for different pump models.

Operating Connections

Details connection sizes and types for process water, suction, and pressure.

Mechanical Seal

Describes typical features and special versions of mechanical seals.

Ambient Conditions

Specifies acceptable temperature, humidity, and altitude ranges.

Clearances for Heat Dissipation

Lists minimum clearances required around the fan hood.

Tightening Torques

Provides torque values for screws, nuts, plugs, and pipe nipples.

Permissible Forces;Torques on Pump Nozzles

Specifies allowable forces and torques on pump connections.

Lubricants

Recommends specific lubricants and amounts for bearings.

Preserving Agents

Lists preserving agents and their required filling volumes.

Appendix

Dimension Drawing VU 20;40

Provides detailed dimension drawings for VU 20 and VU 40 models.

Dimension Drawing VU 80;140;220

Shows dimension drawings for VU 80, VU 140, and VU 220 models.

Dimension Drawing VU 300;450

Provides dimension drawings for VU 300 and VU 450 models.

Dimension Drawing VU 351;451

Displays dimension drawings for VU 351 and VU 451 models.

Dimension Drawing VU 500;600

Contains dimension drawings for VU 500 and VU 600 models.

Dimension Drawing VU 800;1200;1600

Provides dimension drawings for VU 800, VU 1200, and VU 1600 models.

Dimension Drawing VH 20;40;60

Shows dimension drawings for VH 20, VH 40, and VH 60 models.

Dimension Drawing VH 110;140;180

Displays dimension drawings for VH 110, VH 140, and VH 180 models.

Dimension Drawing VH 300;350;400

Provides dimension drawings for VH 300, VH 350, and VH 400 models.

Dimension Drawing VH 500;600

Contains dimension drawings for VH 500 and VH 600 models.

Dimension Drawing VH 800;1200;1600

Provides dimension drawings for VH 800, VH 1200, and VH 1600 models.

Cross-sectional Drawing VU 20-450

Detailed cross-sectional view and parts list for VU 20-450.

Cross-sectional Drawing VU 351;451

Cross-sectional view and parts list for VU 351/451.

Cross-sectional Drawing VU 500-1600

Cross-sectional view and parts list for VU 500-1600.

Cross-sectional Drawing VH 20-400

Cross-sectional view and parts list for VH 20-400.

Cross-sectional Drawing VH 500-1600

Cross-sectional view and parts list for VH 500-1600.

Certificate of Conformity

Form for certifying compliance and handling information.

EC Declaration of Conformity

Official declaration of compliance with EC directives.

Speck pumpen VH 180 Specifications

General IconGeneral
Frequency50 Hz
Weight11 kg
Flow rate, max.180 l/min
Max Flow Rate180 l/min
Voltage230 V
Protection classIP X4

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