Product Code : VF--ZCC-A9-CU
Micro-lift safety valve
Product caliber: DN15~200
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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micro-opening safety valve is a kind of safety valve with relatively small opening height and discharge volume of the disc. Specifically, the disc opening height of the micro-opening safety valve is between 1/40 and 1/20 of the diameter of the flow path
The disc sealing surface of this safety valve may be flat or conical, and the discharge area is calculated according to the cylindrical or conical surface formed between the disc and the seat
Features of micro-opening safety valve
simple structure :
The structure of micro-opening safety valve is relatively simple, convenient for manufacture, maintenance and test adjustment
Application scenario : Suitable for situations where the discharge volume is small, the back pressure is large, and the system pressure is stable. For example, micro-opening safety valves are often used in boiler feed pipes to ensure the safe operation of the boiler
action process :
the action process of micro-opening safety valve is proportional action type, that is, with the increase of pressure, the valve disc gradually opened, the discharge also increases, until the set pressure value
Working principle of micro-opening safety valve
The micro-lift safety valve uses the force of the spring to balance the force acting on the disc. By adjusting the compression of the spring, the opening pressure of the safety valve can be corrected. When the system pressure exceeds the set value, the spring is compressed, the valve disc is gradually opened, and the exhaust begins until the system pressure returns to the safe range
The application scenarios of micro-lift safety valve mainly include boiler feed water pipes, low temperature equipment and pipelines, and various industrial fields.
Boiler feed pipe
Micro-opening safety valve is an important safety protection device in boiler feed water pipeline. When the boiler pressure exceeds the specified value, the safety valve can be opened in time, automatically exhaust and prevent the boiler water from continuing to rise, to ensure the safe operation of the boiler
Cryogenic equipment and plumbing
In low-temperature equipment and pipelines, micro-open safety valves are mainly used for low-temperature liquid medium systems, such as liquid oxygen, liquid nitrogen, liquid argon, liquefied natural gas, etc. When the system pressure rises beyond the specified value, the safety valve will automatically open and discharge part of the medium to the outside of the system, so as to prevent the continuous rise of the medium pressure in the low-temperature pipeline or equipment, and ensure the system safety
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.
