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Spirax Sarco MFP14-PPU - User Manual

Spirax Sarco MFP14-PPU
20 pages
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IM-P681-02 ST Issue 2
1
1. Safety information
2. General
product information
3. Single MFP14 - PPU
installation and
commissioning
4. Duplex MFP14 - PPU
installation and
commissioning
5. Triplex MFP14 - PPU
installation and
commissioning
6. Maintenance
7. Fault nding
© Copyright 2012
Printed in the UK
Triplex MFP14-PPU shown
MFP14-PPU (Vented)
Automatic Packaged Pump Units
Installation and Maintenance Instructions
IM-P681-02
ST Issue 2
6810560/2
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Summary

Safety Information

Intended Use

Defines the product's intended application and compliance with directives.

Access

Ensures safe access and work platforms are provided for installation and maintenance.

Lighting

Specifies the need for adequate lighting for detailed work.

Hazardous Liquids or Gases in the Pipeline

Considers potential hazards from pipeline contents during work.

Hazardous Environment Around the Product

Evaluates risks associated with the surrounding environment during operation.

The System

Assesses the impact of proposed actions on the overall system and personnel.

Pressure Systems

Details procedures for isolating and venting pressure systems safely.

Temperature

Advises allowing time for temperature normalization to prevent burns.

Tools and Consumables

Emphasizes using correct tools and genuine replacement parts.

Protective Clothing

Highlights the need for appropriate protective clothing for various hazards.

Permits to Work

Stresses the requirement for qualified supervision and permits for work.

Handling

Provides guidance on safely lifting and handling heavy products.

Residual Hazards

Warns about residual hazards like hot surfaces and non-self-draining products.

Freezing

Advises on protecting products from frost damage in cold environments.

Disposal

Mentions product recyclability and ecological considerations for disposal.

Returning Products

Outlines requirements for returning products under EC Health, Safety and Environment Law.

General Product Information

Description

Describes the MFP14-PPU vented automatic pump packaged units and their applications.

Capacities

Lists approximate maximum capacities for different unit sizes and configurations.

Pressure; Temperature Limits

Details the operating pressure and temperature limits for various MFP14 models.

Sizes and Pipe Connections

Provides specifications for pipe connections and unit sizes for different configurations.

Single MFP14-PPU Installation and Commissioning

Installation

Provides installation guidelines and safety notes for the Single MFP14-PPU.

Location

Details recommended locations and pipe sizing for the Single MFP14-PPU.

Commissioning

Outlines the step-by-step procedure for commissioning the Single MFP14-PPU.

Materials

Lists the materials used for the components of the Single MFP14-PPU.

Duplex MFP14-PPU Installation and Commissioning

Installation

Provides installation guidelines and safety notes for the Duplex MFP14-PPU.

Location

Details recommended locations and pipe sizing for the Duplex MFP14-PPU.

Commissioning

Outlines the step-by-step procedure for commissioning the Duplex MFP14-PPU.

Materials

Lists the materials used for the components of the Duplex MFP14-PPU.

Triplex MFP14-PPU Installation and Commissioning

Installation

Provides installation guidelines and safety notes for the Triplex MFP14-PPU.

Location

Details recommended locations and pipe sizing for the Triplex MFP14-PPU.

Commissioning

Outlines the step-by-step procedure for commissioning the Triplex MFP14-PPU.

Materials

Lists the materials used for the components of the Triplex MFP14-PPU.

Maintenance

Mechanism Inspection and Repair

Covers inspection and repair procedures, emphasizing safety and lifting points.

Spare Parts

Directs users to product-specific TI for ancillary unit spare parts availability.

Fault Finding

Quick Reference Trouble-shooting Guide

Provides a quick guide to identify and resolve common symptoms and causes.

Summary

Safety Information

Intended Use

Defines the product's intended application and compliance with directives.

Access

Ensures safe access and work platforms are provided for installation and maintenance.

Lighting

Specifies the need for adequate lighting for detailed work.

Hazardous Liquids or Gases in the Pipeline

Considers potential hazards from pipeline contents during work.

Hazardous Environment Around the Product

Evaluates risks associated with the surrounding environment during operation.

The System

Assesses the impact of proposed actions on the overall system and personnel.

Pressure Systems

Details procedures for isolating and venting pressure systems safely.

Temperature

Advises allowing time for temperature normalization to prevent burns.

Tools and Consumables

Emphasizes using correct tools and genuine replacement parts.

Protective Clothing

Highlights the need for appropriate protective clothing for various hazards.

Permits to Work

Stresses the requirement for qualified supervision and permits for work.

Handling

Provides guidance on safely lifting and handling heavy products.

Residual Hazards

Warns about residual hazards like hot surfaces and non-self-draining products.

Freezing

Advises on protecting products from frost damage in cold environments.

Disposal

Mentions product recyclability and ecological considerations for disposal.

Returning Products

Outlines requirements for returning products under EC Health, Safety and Environment Law.

General Product Information

Description

Describes the MFP14-PPU vented automatic pump packaged units and their applications.

Capacities

Lists approximate maximum capacities for different unit sizes and configurations.

Pressure; Temperature Limits

Details the operating pressure and temperature limits for various MFP14 models.

Sizes and Pipe Connections

Provides specifications for pipe connections and unit sizes for different configurations.

Single MFP14-PPU Installation and Commissioning

Installation

Provides installation guidelines and safety notes for the Single MFP14-PPU.

Location

Details recommended locations and pipe sizing for the Single MFP14-PPU.

Commissioning

Outlines the step-by-step procedure for commissioning the Single MFP14-PPU.

Materials

Lists the materials used for the components of the Single MFP14-PPU.

Duplex MFP14-PPU Installation and Commissioning

Installation

Provides installation guidelines and safety notes for the Duplex MFP14-PPU.

Location

Details recommended locations and pipe sizing for the Duplex MFP14-PPU.

Commissioning

Outlines the step-by-step procedure for commissioning the Duplex MFP14-PPU.

Materials

Lists the materials used for the components of the Duplex MFP14-PPU.

Triplex MFP14-PPU Installation and Commissioning

Installation

Provides installation guidelines and safety notes for the Triplex MFP14-PPU.

Location

Details recommended locations and pipe sizing for the Triplex MFP14-PPU.

Commissioning

Outlines the step-by-step procedure for commissioning the Triplex MFP14-PPU.

Materials

Lists the materials used for the components of the Triplex MFP14-PPU.

Maintenance

Mechanism Inspection and Repair

Covers inspection and repair procedures, emphasizing safety and lifting points.

Spare Parts

Directs users to product-specific TI for ancillary unit spare parts availability.

Fault Finding

Quick Reference Trouble-shooting Guide

Provides a quick guide to identify and resolve common symptoms and causes.

Overview

The Spirax Sarco MFP14-PPU (Vented) Automatic Packaged Pump Unit is a plug-in system specifically engineered for the collection and pumping of hot condensate. Its primary application is in returning condensate for use as boiler feedwater, thereby enhancing system efficiency. The unit is designed to be versatile and can be tailored to a wide array of condensate handling applications.

Function Description

The MFP14-PPU operates by utilizing steam as its motive power to pump condensate. It is available in single, duplex, or triplex pump configurations, all mounted on a single base plate. This modular design allows for flexible deployment in either duty-only or duty/stand-by applications, providing redundancy and ensuring continuous operation even during maintenance or in the event of a pump failure.

Condensate flows into a main receiver (item 1), from which it is then directed into the pump(s) (item 3). The pump(s) then discharge the condensate into the return line. The system incorporates a receiver vent (Y) that must be piped unreduced and unrestricted to a safe atmospheric discharge point. This vent is crucial for safely releasing flash steam and maintaining proper pressure within the receiver. For optimal performance, the vent line should ideally be vertical and, if horizontal runs are necessary, pitched to ensure self-draining back to the receiver. A suitably sized vent head should be fitted to the top of the vent pipe to ensure safe discharge of flash steam.

An overflow point (X) is also provided, which must be connected to a safe discharge point via a 'U' bend water seal. This 'U' bend, recommended to be at least 305 mm (12") deep, is designed to prevent flash steam from discharging through the overflow during normal operation. It self-fills with water, but initial commissioning requires ensuring a suitable amount of water is present in the 'U' bend. The operating medium (steam) is supplied to the motive supply inlet (W) to power the pump(s).

The MFP14-PPU is designed to fully comply with the requirements of the European Pressure Equipment Directive 97/23/EC, carrying the CE mark where required. All welding adheres to the standards of the European Pressure Equipment Directive (PED).

Usage Features

The MFP14-PPU is intended for use with Group 2 fluids, specifically steam, air, or water/condensate. While use with other fluids may be possible, it is recommended to consult Spirax Sarco to confirm suitability for such applications. Users must verify material suitability, pressure, and temperature limits, ensuring that the product's maximum operating limits are not exceeded by the system. If there's a risk of dangerous overpressure or overtemperature, a safety device must be included in the system.

Installation requires careful consideration of the unit's location, ideally against a wall, allowing the vent to be easily piped to atmosphere and maintaining reasonable clearance for access. Before installation, all protection covers and films from name-plates should be removed.

Commissioning involves a sequence of steps to ensure safe and effective operation. This includes slowly opening the steam motive supply isolating valve (item 7) and checking the motive drain trap (item 9, if fitted). All isolation valves between the process being drained and the MFP14-PPU (Z), as well as the inlet isolation valve (item 5) and condensate outlet isolation valve (item 5) in the return line (V), must be opened. Condensate should then begin to flow into the receiver and pump(s).

During commissioning, all flanged/screwed connections should be checked for leakage. The pump's operation should be observed for any abnormalities. The pump is designed to cycle periodically, with a minimum cycle time of 8 seconds, accompanied by an audible exhaust at the end of the pumping cycle. This audible cue can be used to monitor the unit's operation and estimate the volume of condensate pumped. Any observed irregularities necessitate rechecking the installation and location sections and, if needed, consulting Spirax Sarco.

Optional extras, such as a pump insulation jacket, are available to enhance performance and safety.

Maintenance Features

Maintenance of the MFP14-PPU involves regular inspection and, when necessary, repair of its mechanisms. Prior to any maintenance, it is crucial to observe all 'safety information' outlined in the manual. This includes ensuring that any internal pressure has been relieved and the motive supply line is isolated to prevent inadvertent discharge. All hot parts must be allowed to cool to avoid burn risks, and appropriate safety clothing should always be worn.

When handling the unit, suitable lifting gear must be used, adhering to the specified safe lifting points. The MFP14-PPU must be securely fastened during any work. Particular care should be taken when dismantling the pump due to its strong snap mechanism, to prevent personal injury.

For detailed maintenance instructions on individual components of the PPU, users should refer to the relevant product-specific Installation and Maintenance Instructions (IMI) supplied with the unit. Spare parts availability for ancillary units is also detailed in product-specific Technical Information (TI) sheets.

A quick reference trouble-shooting guide is provided to assist in diagnosing and resolving common operational issues. For instance, if the MFP14-PPU fails to operate, potential causes include closed motive supply, condensate inlet, or discharge valves, insufficient motive pressure, a restricted vent, or a blocked condensate inlet or motive supply strainer. The guide provides corresponding checks and cures, such as opening valves, checking motive and static backpressure, ensuring the vent line is clear, and cleaning or replacing strainers.

If the 'U' bend water seal is broken and flash steam is discharging, the guide advises re-priming the 'U' bend with water. Persistent flash steam discharge from point X could indicate a blocked vent line (Y). Large amounts of flash steam from the vent line (Y) could point to a pressurised receiver, a failed-open motive steam trap, or leaking motive inlet and exhaust valves of the pump. The guide directs users to verify the vent line's openness and unrestricted nature, and to inspect, repair, or replace the motive steam trap or pump valves as necessary. Installation and troubleshooting should only be performed by qualified personnel.

Spirax Sarco MFP14-PPU Specifications

General IconGeneral
ModelMFP14-PPU
CategoryWater Pump
ManufacturerSpirax Sarco
Pump MaterialCast Iron
Maximum Pressure10 bar
Power Supply3-phase
Motor Power1.5 kW

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