lining tank

Lining Technology

The VALQUA Group has been providing the world with high quality fluororesin lined tanks since it started manufacturing in Japan in 1972.

VALQUA NGC, which joined the group in 2017, added the technology of the VALQUA Group to its service line to cultivate the United States market and add a wide range of fluororesin materials.  VALQUA NGC can flexibly deal with a large number of projects and costs by cooperating and networking with our group sites located throughout Asia.

lining sheets

Lining Sheets

Lining Sheets Introduction

 Lining Sheets

We handle the following 6 types of lining sheets.

Please contact us for more information on sheet materials.

PTFE-ET

(T=3.0mm)

It is a sheet that has been given adhesiveness by chemically etching one side of the PTFE sheet.

PTFE-GB

(T=3.0mm)

It is a sheet that has been given adhesiveness by laminating a glass cloth sheet on one side of the PTFE sheet.

PFA-GB

(T=2.3mm, 3.0mm)

It is a sheet that has been given adhesiveness by laminating a glass cloth sheet on one side of the PFA sheet.

M-PTFE-ET

(T=2.4mm, 3.0mm)

This is a modified type PTFE sheet that has been chemically etched on one side to give it adhesiveness.

M-PTFE-GB

(T=2.4mm, 3.0mm)

It is a sheet that has been given adhesiveness by laminating a glass cloth sheet on one side of a modified type PTFE sheet.

※ET – Chemically etched backing 

※GB – Fiberglass backing

※M – Modified

Life Expectancy of a Fluororesin Lined Tank

It has been found that the life of the lining tank depends on the permeation resistance of the chemical solution of the lining sheet.

Sheet specific gravity chemical liquid permeation

HCL35% 70℃ ATM Thickness:3.0mm

The permeation resistance of fluororesin sheets currently on the market varies greatly depending on the specific gravity of the sheet as shown in the figure above. In other words, the lifetime of a tank varies greatly depending on the sheet selection.

Contact us for more information.

lining tank

Sheet lining process

Sheet Lining Process

Selection of the most suitable sheet
Lining with appropriate and advanced technology
Completion of high quality tank

Selection of

the most suitable sheet

Lining with

appropriate and advanced technology

Completion of

high quality tank

Adhere the sheet on the tank

Adhere the sheet on the tank

Adhesive Coating

1   Adhesive Coating

Sheet Bonding

2    Sheet Bonding

wlding

3    Welding

Steaming (Vulcanization)

4    Steaming (Vulcanization)

Testing

Test / Testing

Hydrostatic & Insulation Testing

5    Hydrostatic & Insulation Testing 

PinholeTest

6    Pinhole test

Air Leakage Testing

7    Air Leakage Testing

Final Inspection

8    Final Inspection

Contact us for more information.