SPX APV ParaFlow - User Manual

Questions and Answers

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Emily WilsonAug 5, 2025
Why is there increased pressure drop or reduced flow rate in my SPX APV ParaFlow?
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  todd92Aug 5, 2025
  An increased pressure drop or reduced flow rate in your SPX Industrial Equipment may be caused by fouled plate surfaces or debris blocking the flow channels. To resolve this, you can open the heat exchanger and clean the plates. It is recommended to install screens or filters to prevent debris from entering the unit. Additionally, reverse flushing can help dislodge debris.
J
John McmahonAug 12, 2025
What to do if there is visible leakage from my SPX APV ParaFlow?
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  Zachary WongAug 12, 2025
  If you observe visible leakage in your SPX Industrial Equipment, it could be due to several reasons. First, check if the operating pressure exceeds the heat exchanger's rating and reduce it if necessary. Second, ensure the heat exchanger is adequately tightened, increasing it in increments of .001 inch (0.025 mm) per plate, but not below the minimum dimensions. Also inspect the plates and gaskets for damage, dirt, cuts, cracks, or flat spots, replacing any defective parts. Finally, chemical attack on the gaskets may be the cause, in which case you should identify and eliminate the corrosive agent or change the gasket material.
J
Jose ChristianAug 20, 2025
How to improve reduced heat transfer in SPX APV ParaFlow Industrial Equipment?
- E
  eowensAug 20, 2025
  Reduced heat transfer in your SPX Industrial Equipment can stem from a few potential issues. Check that the inlet temperatures or flow rates match the original design conditions and correct them if needed. Another cause might be fouling on the plate surfaces, which can be resolved by opening the heat exchanger and cleaning the plates, or by circulating a suitable cleaning agent or reverse flushing without opening it. Freeze-up can also cause reduced heat transfer, so correcting temperatures or flow rates to design conditions is necessary.
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Veronica CarterAug 28, 2025
What to do if there is cross-contamination in my SPX APV ParaFlow?
- L
  Lisa HarveyAug 28, 2025
  Cross-contamination in SPX Industrial Equipment can occur due to cracks or holes in the plates. Cracks may result from fatigue caused by pressure fluctuations, while holes can be due to corrosion. Inspect the plates, replace any defective ones, and identify and correct the source of pressure fluctuations or corrosion by eliminating the corrosive agent or changing the plate material.

Summary

Main Components

Operating Principle

Standard Design

Explains the basic design of plate heat exchangers.

Frame

Details the frame structure and plate arrangement.

Sanitary Plate Heat Exchangers

Describes heat exchangers for sanitary and hygienic duties.

APV DuoSafety - Double Wall Plates

Explains the safety features of DuoSafety plates.

APV ParaWeld - Welded Plate Pairs

Details ParaWeld plates suitable for aggressive fluids.

Inline Filters

Discusses the use and function of inline filters.

General Safety Precautions

Receiving of Equipment

Receiving Check

Procedures for inspecting equipment upon delivery.

Documents

Lists essential documents like drawings and part lists.

Name Plate

Explains the importance and location of the equipment's nameplate.

Handling

Lifting

Guidelines and safety warnings for lifting the heat exchanger.

Installation

Foundation

Requirements for a stable foundation for the heat exchanger.

Space Requirements

Specifies clearance around the unit for maintenance.

Connections

Guidance on connecting piping to the heat exchanger.

Storage

Short Term Storage (less than 6 months)

Recommendations for short-term storage.

Long Term Storage (more than 6 months)

Guidelines for long-term storage of the unit.

Start-up and Operation

Start Up

Safe procedures for initial start-up of the heat exchanger.

Operation

Key considerations for the normal operation of the unit.

Shutting Down

Procedures for safely shutting down the heat exchanger.

Maintenance

Disassembly

Step-by-step guide for taking the heat exchanger apart.

Cleaning

Methods for cleaning the heat exchanger, including CIP.

Regular DuoSafety Internal Inspection

Schedule and procedure for inspecting DuoSafety plate pairs.

Gasket Replacement

Information on ordering and replacing gaskets.

Re-assembly

Steps for correctly reassembling the heat exchanger.

Maintenance of In-line Filter

Instructions for cleaning and maintaining the inline filter.

Spare Parts - Identification and Ordering

Identification of Spare Parts

Guidance on identifying and ordering specific spare parts.

Troubleshooting

Reduced Heat Transfer

Diagnosing and resolving issues with reduced heat transfer.

Increased Pressure Drop or Reduced Flow Rate

Addressing problems related to pressure drop or flow reduction.

Visible Leakage

Identifying and fixing causes of visible leaks.

Cross-contamination

Troubleshooting issues related to cross-contamination.

SPX APV ParaFlow Specifications

General

Type	Plate Heat Exchanger
Plate Material	Stainless steel, titanium, or other alloys
Operating Pressure	Up to 25 bar
Material	Stainless steel, titanium, or other alloys
Weight	Varies based on size and configuration
Frame Material	Carbon Steel, Stainless Steel
Gasket Material	NBR, EPDM, Viton
Operating Temperature	Up to 180°C
Flow Rate	Varies based on model and configuration
Pressure Range	Up to 25 bar
Temperature Range	Up to 180°C
Connection Type	Flanged or threaded