Welcome to Zhejiang CPS Cathay Packing & Sealing Co., Ltd.
TEL: 0086-571-82700086
CPS NEWS
Home > CPS News > New Product Express
August 03,2024
CPS4000HTR THERMAL CYCLING TEST

image.png

Purpose of the test

       Test the leakage of vermiculite products in the medium of water (steam), different temperatures and pressures, and determine the hydrophilicity of vermiculite according to the leakage situation.

Brief introduction of the experiment

Test subjects:

CPS4000HTR 316L inner and outer ring 316L steel with vermiculite filled spiral wound gasket


Gasket size:

DN80 PN50 (HG/T 20631)


Test basis:

GB/T 14180-1993;

See NB/T 20014.15-2010


Test items:

Thermal cycle test (temperature 100-315℃, 5 cycles)


Test process

The bolt size is M30, the specific pressure is 70MPa, the torque of the bolt is 250N according to the formula, and the installation is completed.

1722652207130106.jpg


1722652241332463.jpg


After the water is transferred, the temperature is first raised to 100 ° C, and the temperature is raised to 315 ° C at a warming rate of ≥50 ° C /h. After reaching a stable state, the temperature is kept for 4 hours, and then the cooling rate of ≥50 ° C /h will reduce the temperature below 100 ° C. Repeat 5 cycles of hot and cold alternating at 100℃~315℃.

1722652321613288.png


1722652360100483.png


During the whole test process, there was no temperature drop and pressure drop, which proved that the seal was in good condition.

Open the flange to observe the gasket and flange surface, slightly residual, flange surface is in good condition.

1722652418491422.jpg


1722652443643755.jpg


Certification

CPS4000HTR vermiculite spiral wound gasket 600℃ high temperature TA-LUFT certificate

image.png


Copyright(C) 2020 Zhejiang CPS Cathay Packing & Sealing Co., Ltd All rights reserved