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Flowserve Durco Mark 3 User Manual

Flowserve Durco Mark 3
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USER INSTRUCTIONS
Durco® Mark 3™ ISO frame mounted
Installation
Operation
Maintenance
Standard two piece bearing frame
foot mounted, centreline
mounted and unitized self-priming chemical process pumps
PCN= 85392719 06-12 (E). Original instructions.
These instructions must be read prior to installing,
operating, using and maintaining this equipment.

Table of Contents

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Flowserve Durco Mark 3 Specifications

General IconGeneral
BrandFlowserve
ModelDurco Mark 3
CategoryWater Pump
LanguageEnglish

Summary

Introduction and Safety

General

Keep instructions close to product, follow safety requirements.

CE marking and approvals

Legal requirement for machinery to conform to CE directives for market access.

Disclaimer

Flowserve not liable for misuse; user assumes responsibility for safe operation.

Copyright

All rights reserved. Reproduction or transmission without permission is prohibited.

Duty conditions

Product selected for purchase order specs. Do not operate beyond specified parameters.

Safety

Essential safety information, warnings, and hazard symbols for safe operation.

Summary of safety markings

Explains DANGER, WARNING, CAUTION symbols and their implications.

Personnel qualification and training

All personnel involved must be qualified and properly trained.

Safety action

Actions to prevent injury to personnel and damage to equipment and environment.

Products used in potentially explosive atmospheres

Requirements for ATEX environments to ensure explosion protection.

Scope of compliance

Use equipment in appropriate zones; check driver/pump certification.

Marking

Example of ATEX equipment marking and classification.

Avoiding excessive surface temperatures

Ensure temperature class suitability for the hazard zone.

Transport and Storage

Consignment receipt and unpacking

Check against documents for damage/completeness. Report within one month.

Handling

Methods for unloading boxes, crates, pallets using fork lifts or slings.

Lifting

Use crane for loads >25kg, trained personnel. Sling angles and positioning.

Bare pump

Specific method for lifting a bare pump.

Pump and folded steel or polycrete baseplate set

Lifting method for these baseplate types.

Pump and cast iron or fabricated, baseplate set

Lifting method for sets with specific lifting points.

Storage

Store in clean, dry location, turn periodically. Max 6 months.

Recycling and end of product life

Recycle/dispose environmentally. Handle hazardous substances safely.

Description

Configurations

Pump is modular, designed for various chemical liquid pumping requirements.

Name nomenclature

Explanation of pump size and configuration codes on the nameplate.

Design of major parts

Detailed description of key components like casing, impeller, shaft, etc.

Pump casing

Horizontal end inlet, vertical top outlet, self-venting, self-priming option.

Impeller

Available as reverse vane, open, or recessed types.

Shaft

Features a large diameter, stiff shaft with a keyed drive end.

Bearing housing

Allows for impeller face clearance adjustment via a micrometer mechanism.

Pump bearings and lubrication

Uses ball or roller bearings, lubricated by oil or grease.

Adaptor

Fitted between bearing housing and cover for optimum interchangeability.

Cover (Seal chamber)

Has spigots for improved concentricity between casing and housing.

Shaft seal

Seals pumped liquid; gland packing is an optional alternative.

Driver

Typically an electric motor; other drive configurations are available.

IPS Beacon

Standard equipment for temperature and vibration monitoring.

Accessories

Optional accessories like fan cooling for high-temperature operation.

Performance and operating limits

Typical data for installation, subject to various factors.

Operating limits

Specifies normal maximum/minimum ambient temperatures and maximum pump speed.

Installation

Location

Site selection criteria for access, ventilation, and maintenance.

Part assemblies

Coupling elements supplied loose; installer responsible for final alignment.

Foundation

Requirements for mounting on a firm foundation to prevent failure.

Grouting

Procedure for grouting to ensure solid contact and dampen vibrations.

Initial alignment

Align at ambient temperature, accounting for thermal expansion.

Thermal expansion

Check alignment at operating temperature for high liquid temps.

Alignment methods

Detailed steps for checking and correcting shaft alignment.

Check for soft foot

Procedure to check for undue stress on driver hold-down bolts.

Piping

Guidelines for connecting suction, discharge, and auxiliary piping.

Suction and discharge pipework

Prevent pipe load on flange, flush piping before connection.

Non self-primer casings

Recommendations for pipe sizing and velocity for non-self priming.

Self-priming casing

Requirements for priming air escape and preventing run-back.

Suction piping

Guidelines for suction pipe layout, diameter, and slope.

Non self-primer casing suction piping

Specific recommendations for non-self priming suction piping.

Self-priming casing suction piping

Specific recommendations for self-priming suction piping.

Suction strainer

Importance of preventing dirt entry and proper strainer installation.

Discharge piping

Recommendations for non-return valves, isolation valves, and regulating valves.

Non self-primer casing discharge piping

Use of non-return valve to prevent reverse rotation.

Self-priming casing discharge piping

Minimizing friction and noise in discharge piping.

Allowable nozzle loads

Complies with ISO 5199 shaft deflection limits.

Final checks

Final checks on bolt tightness for pipework and foundation.

Auxiliary piping

Connecting auxiliary piping for flush, quench, etc.

Electrical connections

Must be done by qualified electrician, following regulations and manufacturer's instructions.

Final shaft alignment check

Recheck alignment after piping is connected and before starting.

Protection systems

Recommended systems for hazardous areas or liquids.

Commissioning, Start-Up, Operation and Shutdown

Pre-commissioning procedure

Essential initial checks before commencing operation.

Lubrication

Determining lubrication mode and filling bearings correctly.

Pump lubricants

Recommendations for suitable oils and greases based on operating conditions.

Recommended oil lubricants

Table of recommended oils by viscosity and temperature range.

Bearing sizes and capacities

Tables detailing bearing sizes and lubricant capacities.

Recommended grease lubricants

Guidance on NLGI grades and specific grease types.

Recommended fill quantities

Reference to bearing sizes and capacities section.

Lubrication schedule

Reference to maintenance schedule for lubrication intervals.

Impeller clearance

Initial factory setting and potential adjustments due to temperature.

Direction of rotation

Critical step to check motor rotation before coupling.

Guarding

Importance of fitted guards and legal requirements in the EU.

Priming and auxiliary supplies

Procedures for priming the pump and connecting auxiliary systems.

Filling and priming, non self primer casing

Ensuring the pump and casing are completely filled with liquid.

Filling and priming, self priming casing

Filling via the designated hole before operation.

Auxiliary supplies

Verifying all electrical, hydraulic, and pneumatic systems are ready.

Starting the pump

Step-by-step instructions for starting both pump types.

Starting the non self primer casing pump

Procedure for starting non-self priming pumps.

Starting the self priming casing pump

Procedure for starting self-priming pumps.

Running the pump

Guidelines for operating the pump once started.

Pumps fitted with packed gland

Adjusting gland packing for optimal leakage.

Pumps fitted with mechanical seal

Mechanical seals require no adjustment, run-in procedure.

Bearings

Monitoring bearing temperatures, especially in potentially explosive atmospheres.

Normal vibration levels, alarm and trip

Guidelines for acceptable vibration levels and trip points.

Stop/start frequency

Limits on the number of starts per hour based on motor rating.

Stopping and shutdown

Safe procedures for stopping and shutting down the pump.

Hydraulic, mechanical and electrical duty

How changes in operating parameters affect pump performance.

Specific gravity (SG)

Impact of specific gravity on pump capacity, head, and power.

Viscosity

Effect of liquid viscosity on pump performance and power consumption.

Pump speed

Influence of pump speed on flow, head, power, NPSH, and noise.

Net positive suction head (NPSHA)

Importance of NPSHA margin over NPSHR to prevent cavitation.

Pumped flow

Operating within the specified minimum and maximum continuous flow rates.

Maintenance

General

Operator responsibility for maintenance by qualified, trained personnel.

Maintenance schedule

Recommended plan for routine and periodic inspections and tasks.

Routine inspection (daily/weekly)

Daily/weekly checks on noise, vibration, leaks, lubricant levels.

Periodic inspection (six monthly)

Checks for foundation bolts, coupling alignment, and wear.

Re-lubrication

Guidelines for oil and grease lubrication intervals and types.

Oil lubricated bearings

Intervals for oil changes based on oil type and service conditions.

Grease lubricated bearings

Intervals for grease application and changes.

Mechanical seals

When to replace mechanical seals due to leakage.

Gland packing

Procedures for re-packing stuffing boxes.

Spare parts

Information on ordering, storing, and identifying spare parts.

Ordering of spares

Essential information required when ordering spare parts.

Storage of spares

Recommendations for storing spare parts to maintain their condition.

Recommended spares

A list of recommended spare parts for a two-year operation period.

Tools required

Lists standard and specialized tools needed for maintenance.

Fastener torques

Table of specified torque values for various fasteners.

Setting impeller clearance

Procedure for adjusting impeller clearance after dismantling or for different requirements.

Setting Open impeller (OP) front clearance

Detailed steps to set clearance for OP impellers.

Setting reverse vane (RV) impeller rear clearance

Detailed steps to set clearance for RV impellers.

Setting recessed impeller rear clearance

Detailed steps to set clearance for recessed impellers.

Disassembly

Safety precautions and steps for dismantling the pump.

Bearing housing disassembly

Step-by-step guide to disassemble the bearing housing.

Impeller removal

Methods for removing both threaded and key drive impellers.

Impeller removal with threaded on impeller

Specific method for removing threaded impellers.

Impeller removal with key drive impeller

Specific method for removing key drive impellers.

Cover and seal

Steps for removing the cover and mechanical seal.

Bearing housing

Procedures for disassembling bearing housing components.

Examination of parts

Inspecting components after disassembly for wear and damage.

Casing, cover and impeller

Inspect for wear, pitting, corrosion, and sealing surface irregularities.

Shaft and sleeve (if fitted)

Check shaft for runouts and surface condition.

Gaskets, O-rings and V-ring when fitted

These parts must be discarded and replaced after removal.

Bearings

It is recommended not to re-use bearings after removal.

Bearing labyrinths/isolators

Inspect these parts for damage; they are typically non-wearing.

Bearing housing and carrier

Inspect for damage, contamination, and clear lubrication passages.

Assembly

General guidance for pump assembly, referring to drawings.

Bearing housing and rotating element assembly

Steps to assemble the bearing housing and rotating shaft components.

Seal cover and seal assembly

Procedures for assembling the seal cover and mechanical seal.

Gland packed stuffing box assembly

Steps for correctly assembling gland packing and stuffing box.

Impeller assembly and setting

Procedures for assembling and setting the impeller.

Impeller assembly and setting

Specific steps for threaded impellers.

Impeller assembly with key drive impeller

Specific steps for key drive impellers.

Assembly of power-end into casing

Steps to fit the power-end assembly into the pump casing.

Sealing arrangements

Diagrams and dimensions for various seal configurations.

Single seal types

Illustrates different types of single mechanical seals.

Single seal with external lip seal

Diagram of a single seal with an external lip seal.

Cartridge seal types

Illustrations of various cartridge seal configurations.

Cartridge seal in Seal Sentry conical cover

Diagram of a specific cartridge seal type.

'Hooked sleeve' cartridge seal

Diagram of a hooked sleeve cartridge seal.

Tandem seal types

Illustrations of different tandem seal arrangements.

Double seal types

Illustrations of double mechanical seal configurations.

External seal types

Diagrams illustrating external seal configurations.

Packed gland seal types

Diagrams of packed gland seal configurations.

Packed gland with fibre packing

Specific diagram for packed gland with fibre packing.

Faults; Causes and Remedies

Possible Causes

Lists potential system and mechanical issues leading to pump faults.

A. System troubles

System-related causes for pump malfunctions.

B. Mechanical troubles

Mechanical issues causing pump faults.

Possible Remedies

Provides solutions and troubleshooting steps for identified faults.

C. Motor electrical problems

Identifies and addresses electrical issues related to the motor.

Parts Lists and Drawings

Mark 3 ISO

Contains sectional drawings and parts lists for the Mark 3 ISO series.

Open impeller (OP) sectional drawing

Visual representation of the OP impeller in sectional view.

Open impeller (OP) parts list

Enumerates all parts associated with the OP impeller configuration.

Reverse vane (RV) impeller sectional drawing

Visual representation of the RV impeller in sectional view.

Reverse vane (RV) impeller parts list

Enumerates all parts associated with the RV impeller configuration.

Center line mounted, recessed impeller and self primer configurations

Drawings and lists for specific pump configurations.

Center line mounted sectional drawing

Sectional diagram of the center line mounted configuration.

Center line mounted casing parts list

Parts list for the center line mounted pump casing.

Recessed impeller pump sectional drawing

Sectional diagram of the recessed impeller pump.

Recessed impeller pump parts list

Parts list for the recessed impeller pump.

Self priming casing pump sectional drawing

Sectional diagram of the self-priming casing pump.

Self priming casing pump parts list

Parts list for the self-priming casing pump.

Additional details

Provides further specific details on certain components.

Bearing housing sealing details

Specific information regarding bearing housing seals.

Open impeller (OP) key drive impeller option

Details pertaining to the OP key drive impeller.

Parts interchangeability

Guides on which parts can be interchanged between models.

Durco Mark3 ISO A hydraulic parts interchangeability

Interchangeability matrix for Mark 3 ISO A hydraulic pumps.

Durco Mark3 ISO B hydraulic parts interchangeability

Interchangeability matrix for Mark 3 ISO B hydraulic pumps.

Self-priming and recessed impeller pumps parts interchangeability

Interchangeability for self-priming and recessed impeller pumps.

Certification

Other Relevant Documentation and Manuals

Supplementary User Instruction manuals

Information on additional manuals for drivers, seals, etc.

Change notes

Section for recording agreed product changes after supply.

Additional sources of information

References to external guides, books, and standards.

Related product manuals