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2025-12-03Function and principle of vacuum breaker valve
When the system generates negative pressure, the pressure difference between atmospheric pressure and system pressure acts on the sealing element, pushing it to break the valve sealing element, opening...
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2025-12-03Common faults and causes of self-operated steam regulating valves
1. No signal, no air source. ① The air source is not turned on, ② The air source contains water, which freezes in winter, causing blockage of the air duct or malfunction of the filter or pressure r...
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2024-05-28What manufacturing standards are used for stainless steel welded needle valves
J61Y/J61W/stainless steel welding needle valve is one of the valves widely used in power, electrical, electromechanical equipment engineering, and electrical control equipment engineering. Due to its c...
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2024-05-28What is the working principle of the HXF breathing valve with a connecting pipe
The HXF breathing valve with a connecting pipe is installed on the top of a fixed storage tank to reduce oil evaporation loss, control tank pressure, and prevent external flames from entering. It has t...
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2024-05-20Application Specification and Scope of API Internal Thread American Standard Needle Valves
API internal threaded American standard needle valves have the advantages of easy installation and disassembly, tight connection, favorable fire prevention, explosion-proof and high pressure resistance...
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2024-05-20Application and construction/installation points of fluorine lined anti-corrosion discharge valve
1. Before installing the fluorine lined anti-corrosion discharge valve, a visual inspection must be carried out, and the valve nameplate should comply with the current GB standard General Valve Marking...
