Product Code : VF--ZCC-A7-CU
Spring full lift safety valve
Product caliber: DN20-400
Product pressure: 0.6 ~ 10.0MPa
Manufacturing standards: China GB, JB, HG, API, ANSI, DIN, JIS, JPI, BS production. Body material: copper, cast iron, cast steel, carbon steel, WCB, WC6, WC9, 20#, 25#, forged steel, A105, F11, F22, stainless steel, 304, 304L, 316, 316L, chromium molybdenum steel, low temperature steel, titanium alloy steel, etc. Working pressure 1.0Mpa-50.0Mpa. Operating temperature: -196℃-650℃. Connection method: internal thread, external thread, flange, welding, butt welding, socket welding, sleeve, clamp. Driving mode: manual, pneumatic, hydraulic, electric
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spring full lift safety valve
It is an important safety protection device, mainly used in boiler and pressure vessel systems to ensure the safe operation of the system. The basic working principle is to use the balance between the preload force of the spring and the medium pressure to control the opening and closing of the valve. When the pressure of the medium rises to a certain extent, the spool will overcome the preload of the spring and automatically open, release the excess medium, and reduce the system pressure; When the pressure is reduced to a safe value, the spool automatically closes under the action of the spring force
Structural characteristics
The structure of the spring full open safety valve is relatively simple, mainly composed of the shell, the upper cover and the piston assembly. Its action process belongs to the two-stage action type, and a lifting mechanism must be used to achieve the fully open state. This design enables the safety valve to perform well in gas-medium applications, ensuring that the system responds quickly to abnormal conditions and realizes the automatic opening function
spring full open safety valve is widely used in many industrial fields, mainly including chemical, electric power, oil and natural gas industry . These industries usually involve high temperature and high pressure working environments, and have high performance requirements for safety valves.
Chemical industry
In the chemical industry, spring-loaded safety valves are widely used in reactors, storage tanks, pipelines and other equipment. These devices operate under high temperature and high pressure conditions and are prone to overpressure. Spring full open safety valve can quickly open when the pressure exceeds the set value, discharge too high pressure, prevent equipment damage due to overpressure, and ensure the safe and stable operation of the production system
. In addition, chemical media such as hydrogen, nitrogen, hydrochloric acid and sulfuric acid are usually corrosive. Spring fully opened safety valves are made of corrosion-resistant alloy materials, which can work reliably in harsh chemical environments
Electric power industry
In the power industry, spring-loaded safety valves are mainly used in boiler systems of thermal power plants. The boiler will produce high temperature and high pressure steam during operation, if the pressure is not properly controlled, it may lead to catastrophic explosion accidents. The spring full open safety valve is installed in the drum, superheater and reheater of the boiler, and closely monitors the change of steam pressure to ensure that the steam pressure is always within the safe range. It can maintain a high degree of reliability to ensure the safety of power production , whether it is in the process of unit start-up, operation or shutdown
The oil and gas industry
In the oil and gas industry, spring-loaded full-lift safety valves are used in equipment such as oil and gas Wells, storage tanks and transmission pipelines. These equipment in the mining and transportation process need to withstand high pressure, spring full lift safety valve can be quickly opened when the pressure exceeds the set value, discharge too high pressure, to prevent equipment damage due to overpressure. Its corrosion resistance and high temperature resistance make it capable of long-term stable operation under harsh working conditions
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.
