Spring open closed safety valve，Spring full open closed safety valve，safety valve

‌ spring micro-open closed safety valve ‌ is a kind of safety device that depends on the elastic pressure of the spring to control the opening and closing of the valve. It is mainly used to cut off, connect and adjust the medium in the pipeline, with automatic pressure relief and automatic closing function ‌

Working principle

The spring-open closed safety valve relies on the elastic pressure of the spring to lock the valve valve or plunger seal. When the pressure of the pressure vessel is abnormally elevated, the high pressure will overcome the pressure of the spring, so that the locking device is pushed open, forming a pressure relief channel, and the high pressure medium is released. Once the pressure returns to normal, the elastic pressure of the spring causes the valve to close automatically without manual resetting ‌

Structural characteristics

‌ automatic close ‌ : it can be automatically closed after pressure relief without manual reset. The maximum opening height is 1/4 of the inner diameter ‌

‌ Applicable medium ‌ : suitable for water, oil, steam and other media, suitable for the working temperature ≤300℃ equipment and pipelines ‌

‌ spring micro-open closed safety valve is mainly used in the following fields ‌ :

‌ petrochemical industry ‌ : In the petrochemical industry, all kinds of reactor, storage tank, pipeline and other equipment often withstand high temperature and high pressure working environment. The spring-open closed safety valve can monitor and control the system pressure in real time to ensure that the equipment operates within a safe pressure range. When the pressure exceeds the set value, the safety valve quickly opens to release excess pressure and avoid dangerous situations such as explosion or leakage ‌

‌ power industry ‌ : boilers, steam turbines and other equipment in the power industry also need to strictly control the pressure. The spring micro-opening closed safety valve can automatically adjust the opening of the valve according to the change of the system pressure to maintain the stability of the pressure. At the same time, it also has the characteristics of fast response, can react quickly when the pressure is abnormal, to protect the safe operation of the power system ‌

‌ Pharmaceutical industry ‌ : In the pharmaceutical industry, many production facilities need to maintain a certain pressure to ensure the quality and yield of drugs. The spring-open closed safety valve provides precise pressure control to ensure that the equipment operates under constant pressure. In addition, due to the extremely high requirements of health and safety in the pharmaceutical industry, the sealing performance and reliability of this safety valve has also been widely recognized, which can effectively prevent the contamination or leakage of drugs in the production process ‌

‌ Other industrial applications ‌ : spring micro-open closed safety valves are also suitable for other industrial fields that require precise pressure control and sealing performance, such as food processing, metallurgy, paper making, etc

Packing of Standard Packing:

 Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 442 gallon liquid totes Special package is available on request. ATTs’  is carefully handled to minimize damage during storage and transportation and to preserve the quality of our products in their original condition.