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Speck pumpen VH 600 - 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

  • J
    Jodi ShafferAug 16, 2025
    What to do if my Speck pumpen Water Pump motor protection is triggered?
    • W
      woodskellyAug 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.
  • D
    Diane ThomasAug 20, 2025
    Why is my Speck pumpen VH 600 Water Pump motor consuming excessive power?
    • S
      Seth McfarlandAug 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.
  • L
    Lauren BarberAug 23, 2025
    What to do if my Speck pumpen VH 600 Water Pump is leaking?
    • R
      rwilsonAug 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.
  • T
    Teresa CummingsAug 27, 2025
    Why is my Speck pumpen VH 600 Water Pump not producing vacuum?
    • L
      Laura MerrittAug 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.
  • S
    shannonpetersonAug 31, 2025
    Why is my Speck pumpen VH 600 not running smoothly?
    • R
      Ryan HoltAug 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.
  • J
    johnsonanthonySep 7, 2025
    Why is my Speck pumpen Water Pump making a strange noise?
    • J
      jesus28Sep 8, 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.
  • D
    Daniel WongNov 11, 2025
    Why is my Speck pumpen Water Pump motor not starting?
    • K
      Kathleen BowenNov 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 responsibilities for following instructions.

Applicable Documents

Lists related manuals and declarations for compliance.

Warnings and Symbols

Explains safety levels, hazard consequences, and symbols used.

Terminology

Provides definitions for technical terms used in the manual.

Safety

Intended Use

Specifies correct applications and operational limits to prevent damage.

Possible Misuse

Outlines incorrect uses and their potential consequences for safety.

General Safety Instructions

Covers fundamental safety practices for operation and staff.

Residual Risks

Highlights inherent dangers not fully eliminated by safety measures.

Special Risks

Details risks associated with specific environments like explosive areas.

Design and Functioning

Marking

Describes identification plates and codes on the pump.

General Description

Provides an overview of the pump series and its construction.

Design and Functional Principle

Explains the liquid ring principle and how the pump works.

Shaft Sealing

Describes the types and function of shaft sealing systems.

Transport, Storage and Disposal

Transport

Covers safe handling, unpacking, and lifting procedures.

Storage

Provides guidelines for proper storage conditions and duration.

Preservation

Details methods for protecting the pump during storage.

Removing Preserving Agent

Explains how to prepare the pump after preservation.

Disposal

Outlines procedures for safe and environmentally friendly disposal.

Set-up and Connection

Preparing Set-up

Covers site checks, clearances, and site preparation.

Set-up with Foundation

Details the process for mounting the aggregate on a foundation.

Set-up without Foundation

Describes installation methods when no foundation is used.

Set-up on Torsion-resistant Level Surface;Frame

Explains mounting on a stable surface or frame.

Motor Installation

Guides on installing and aligning the motor.

Planning Pipe System

Covers pipe design, supports, and connections.

Connecting Pipes

Instructions for installing suction and pressure pipes.

Fine Adjustment of Coupling

Details on aligning the motor and pump coupling.

Motor Adjustment

Procedures for fine-tuning motor alignment.

Electrical Connection

Safety instructions and procedures for electrical hook-up.

Operation

Preparations for Commissioning

Steps before starting, including type ID and filling.

Commissioning

Procedures for starting and stopping the pump.

Setting the Operating Liquid Flow Rate

Explains cooling methods and flow rate adjustments.

Decommissioning

Instructions for taking the pump out of operation.

Re-commissioning

Steps for restarting the pump after a shutdown.

Operating Stand-by Aggregate

Guidelines for maintaining standby units.

Maintenance and Servicing

Monitoring

Covers inspection intervals and checks for proper operation.

Lubrication Intervals for Rolling Bearings

Specifies lubrication schedules for bearings.

Rinsing off Contaminations

Procedures for cleaning the pump from contaminants.

Preventing Calcification

Advice on managing water quality to prevent calcification.

Disassembly

General instructions and specific procedures for taking pumps apart.

Troubleshooting

Troubleshooting Guide

Lists common defects, their causes, and rectification methods.

Technical Data

Operating Limit Values

Tables detailing pressure, temperature, and density limits.

General Technical Data

Covers weight, sound level, drive power, connections, seals.

Conical Pipe Fittings

Notes on tightening torques for conical fittings.

Permissible Forces; Torques Acting on the Pump Nozzles

Specifies maximum forces/torques for connections.

Lubricants

Information on recommended lubricants and their application.

Preserving Agents

Details on preserving agents and filling volumes.

Test Pressure for Pressure Test

Specifies test pressure requirements.

Accessories

Lists accessories included in the scope of supply.

Appendix

Dimension Drawing VU 20;40

Technical drawings with dimensions for VU 20/40 models.

Dimension Drawing VU 80;140;220

Technical drawings with dimensions for VU 80/140/220 models.

Dimension Drawing VU 300;450

Technical drawings with dimensions for VU 300/450 models.

Dimension Drawing VU 351;451

Technical drawings with dimensions for VU 351/451 models.

Dimension Drawing VU 500;600

Technical drawings with dimensions for VU 500/600 models.

Dimension Drawing VU 800;1200;1600

Technical drawings with dimensions for VU 800/1200/1600 models.

Dimension Drawing VH 20;40;60

Technical drawings with dimensions for VH 20/40/60 models.

Dimension Drawing VH 110;140;180

Technical drawings with dimensions for VH 110/140/180 models.

Dimension Drawing VH 300;350;400

Technical drawings with dimensions for VH 300/350/400 models.

Dimension Drawing VH 500;600

Technical drawings with dimensions for VH 500/600 models.

Dimension Drawing VH 800;1200;1600

Technical drawings with dimensions for VH 800/1200/1600 models.

Cross-sectional Drawing VU 20-450

Detailed cross-section views and parts list for VU 20-450.

Cross-sectional Drawing VU 351;451

Detailed cross-section views and parts list for VU 351/451.

Cross-sectional Drawing VU 500-1600

Detailed cross-section views and parts list for VU 500-1600.

Cross-sectional Drawing VH 20-400

Detailed cross-section views and parts list for VH 20-400.

Cross-sectional Drawing VH 500-1600

Detailed cross-section views and parts list for VH 500-1600.

Certificate of Conformity

Form for certifying conformity and handling information.

EC Declaration of Conformity

Official EU declaration of compliance for the product.

Speck pumpen VH 600 Specifications

General IconGeneral
BrandSpeck pumpen
ModelVH 600
CategoryWater Pump
LanguageEnglish

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