Detailed explanation of the working principle of high-pressure valves

Preface: Our company, Northern Valve Group Co., Ltd., is a manufacturer of research and development, production, and sales of standard general industrial valves such as high-pressure valves, ball valves, gate valves, butterfly valves, and globe valves. The diameter ranges from 10mm to 3000mm, and the nominal pressure PN ranges from 1Mpa to 80Mpa. We can also customize non-standard valves for you. Please feel free to contact us for more information.

High pressure valvesAccording to the technical department of the manufacturer Beigaoke Group, high-pressure valves have been widely used in fields such as superhard material manufacturing, chemical industry, petrochemical industry, processing technology, isostatic pressure treatment, ultra-high static pressure extrusion, powder metallurgy, metal forming, as well as geophysical and geological research.. It can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, mud, oil products, liquid metals, and radioactive media.

1、 Applicable occasions for high-pressure valves:

High pressure valve is a new type of safety supporting device for gas pipeline engineering, installed in gas and liquefied gas pipelines, liquefied gas refueling stations, gas boilers, factory canteens, hotel kitchens and other gas pipelines. It is mainly used in the following situations:

1. Connect to combustible gas leakage monitoring instruments (gas leakage alarms). When the instrument detects a combustible gas leak and the gas reaches a certain concentration, the gas leak alarm host sends an electrical signal to the high-pressure valve coil, and the high-pressure valve automatically closes quickly.

2. Connected to the central fire alarm system. When a fire occurs in the building, the gas supply inside the building is automatically cut off to prevent major accidents.

3. Connect to the limit temperature (or pressure) safety controller of the thermal equipment. When the temperature or pressure of the detection point inside the equipment exceeds the set limit value, the gas supply valve will be automatically and quickly closed to stop the fuel supply.

2、 Working principle of high-pressure valve:

1. Power on/off type: normally open, 24-hour normally open state, coil not charged, gas reaches a certain concentration, gas leakage alarm, control box sends an electrical signal to the high-pressure valve, automatically closes (1 second), (at this time, if power is turned on or off again, the valve remains closed and needs to be manually reopened) (The coil is powered on for no more than 30 seconds)

2. Power off closed type: normally closed, first power on the coil, then pull the valve stem up, the high-pressure valve opens, the gas reaches a certain concentration, the gas leak alarm goes off, the control box powers off the high-pressure valve, and the valve automatically (1 second) closes (At this time, if the power is turned on or off again, the valve will remain closed.) (When reopening, the high-voltage valve coil needs to be powered on first, and then the valve stem needs to be pulled up to open the high-pressure valve.) (The coil can be charged for a long time, and it is recommended not to exceed 24 hours.)

J61Y High Temperature and High Pressure Power Station Stop Valve

3、 Manual reset operation process of high-pressure valve:

1. Normally open: When the high-pressure valve needs to be opened after it is closed, personnel need to manually reset it: the coilis not powered, pull up the manual reset lever with force, and hear a "click" sound to open the high-pressure valve. (The coil is energized and the high-pressure valve is closed)

2. Normally closed: When the high-pressure valve needs to be opened after it is closed, personnel need to manually reset it: the coilis powered on first, and the manual reset lever is pulled upwards with force. When a "click" is heard, the high-pressure valve opens. (The coil loses power and the high-pressure valve closes)

After reading this article "Detailed explanation of the working principle of high-pressure valves", I believe you have a certain understanding of high-pressure valves. Our company, North Valve Group Co., Ltd., is a manufacturer of high-pressure valves. For decades, the company has sold high-quality valve products, and the product technology and quality have been certified by national authoritative institutions, all of which meet national standards and are highly trusted by customers.

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