当前位置: Home / Faq / Air separation parts FAQ /

How to install the automatic valve correctly?

How to install the automatic valve correctly?
Sep 12, 2023
Author: DEAR AST
Question Reply

Before the automatic valve is installed in the automatic valve box, it must be disassembled and washed clean, and the oil must be removed with clean alcohol. If it has been used, the automatic valve must grind the sealing surface, and then test the pressure with special tools. According to the manufacturing requirements, the leakage is less than 0.1L/min under the pressure of 0.6MPa. In actual work, kerosene leakage detection or soap water leakage detection can be used. Install the automatic valve in special tools first, put the pressure of 0.6MPa into it, and stop the pressure for 3 min. The standard of air leakage is: no more than 6 soap bubbles with a diameter of 40mm should be blown out within 3 minutes. The automatic valve that has passed the pressure test should be equipped with Open pin for standby. Special attention should be paid to the use of low temperature resistant brass or stainless steel products for the opening pin, and ordinary opening pin should not be used casually.
InKong fen taAfter the installation is completed, and the impurities in the refrigerator (or switching heat exchanger) and the pipeline inside the tower are completely blown away, the automatic valve should be put into the automatic valve box before the distillation tower is ready to be heated. The automatic valve box should be cleaned and oiled with alcohol. The installation method is to install the upper layer first, then install the lower layer. Pay attention to straighten the washer when installing, especially the pure aluminum pad should be complete. Tighten the screw nut symmetrically and evenly.
If the automatic valve is found to be stuck during operation, the automatic valve should be removed and soaked in liquid nitrogen for 15 min to check the flexibility of the automatic valve. Pick out the locked valve and properly increase the gap between the valve stem and the valve seat hole.

DEAR Air Separation Solve YourHow to install the automatic valve correctly?You can also learn about otherAir separation parts FAQ about DEAR Air Separation, and solve the problem for you.
Didn’t find the problem encountered?
Please contact live chat or email for quick help.
Related FAQ
More Related FAQ
Why do the design, installation, and production of complete sets of air separation equipment require various parameters from the demand side?
2024.11.14
The classical single column process is the first one to be used in industrial application. However, there are many disadvantages in the classical single column process. One is that oxygen and nitrogen cannot be produced simultaneously, and the other is that the oxygen extraction rate can only reach about 70%. There are two improvement schemes to solve the defects of classical single column process. One is the curren...
2024.11.13
Need more information?
Contact us for more details about our air separation equipment, solutions and services.
Products
  • Large air separation
  • Small air separation
  • High purity nitrogen air separation
  • Liquefaction air separation
  • Complete air separation
  • Biogas purification
  • Air separation parts
Need more information?
Tel:+86-19837850537
© Kaifeng DEAR Air Separation Industry Co., Ltd.. All rights reserved.
Online
Inquiry
Email
Top