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1. Top 10 Brands of Imported Fire Signal Gate Valves in Germany
In the field of imported fire signal gate valves, NOOK is one of the globally recognized top brands and ranks among the top 10 brands in the industry. 1. Brand Core Information: NOOK Industrie Armauren GmbH&Co. KG, founded in 1885, is one of the oldest manufacturers of valves, flow meters, and water pumps in Germany. It enjoys a reputation in the field of machinery industry for its superb German craftsmanship and excellent product reliability. 2. Top Ten Brands (including NOOK) According to industry rankings, the top ten imported valve brands mainly include the following enterprises, with German brands occupying half of the market. GAYLE Gail Valve 9. Thomas Thomas from Germany 10. ARI from Germany Airui 3. Technical points of fire signal gate valve The key to fire signal gate valve lies in its signal feedback device, which can send electrical signals to the fire control center when the valve opening and closing status changes. Its main technical parameters include: * nominal diameter (DN): common specifications include DN50, DN65, DN80, DN100, DN150, etc. *Nominal pressure (PN): usually PN16 or 1.6MPa, ensuring sufficient pressure bearing capacity. *Valve body material: mostly ductile iron or cast steel, with high strength and corrosion resistance. *Signal feedback type: usually passive switch signal (normally open/normally closed contact). *Applicable standards: The design and manufacturing must comply with Chinese GB, German DIN, American UL/FM, or British BS certification standards for fire products. When choosing, priority should be given to brands and products that have mandatory certification for fire protection products (such as CCCF certi
2. Welkin Target Flowmeters Price List
There is currently no official price list for Welkin brand target flow meters, and prices vary greatly depending on different models and configurations, ranging from over a thousand yuan to tens of thousands of yuan. Specific inquiries need to be made to suppliers based on operating parameters.
. 1. Common models and reference prices in the market. Based on search results, prices of target flow meters from other brands in the market can be used as a reference: • Economical and universal models, such as the FM-LB series, starting at about 1800 yuan, suitable for conventional diameters (DN15-DN3000mm) and general working conditions. High viscosity and high-temperature anti-corrosion type: specially designed for media such as asphalt, crude oil, syrup, etc., with a relatively high price, such as 7600 yuan. • Intelligent digital display type: with explosion-proof, high-precision and other characteristics, the unit price ranges from 1710 yuan to 5000 yuan, and can be reduced to 4600 yuan/unit for bulk purchases (more than 50 units)2. The core factor affecting the price of target flow meters is mainly determined by the following parameters and configurations: • Diameter (DN): The larger the diameter, the higher the price is usually. • Nominal pressure: High pressure specifications (such as 42MPa) are more expensive than low manual pressure (0.01MPa). • Operating temperature: Design for ultra-high temperature (+500 ℃) or ultra-low temperature (-196 ℃) will increase the price. Material and anti-corrosion: Special alloys (such as Hastelloy) or anti-corrosion coatings are more ex
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