Zhengmao Valve Welded Gate Valve: Solid Welding, Long Service Life, the "Hardcore Backbone" of Industrial Pipes
Let's first list some solid parameters: the valve body material can be WCB carbon steel, 304/316 stainless steel, suitable for different media; the nominal diameter ranges from DN40 to DN800, covering the needs of most industrial pipelines; the nominal pressure is 1.6MPa-10.0MPa, and the operating temperature range is -29℃ to 425℃ (for carbon steel) and -196℃ to 550℃ (for stainless steel). Whether it is normal-temperature water transportation, high-temperature steam or low-temperature media, it can handle them stably. The most crucial point is that the sealing surface is surfacing with cobalt-based hard alloy, with a hardness of over HRC55, which is wear-resistant and scratch-resistant, and its service life is at least twice that of ordinary sealing surfaces.
The advantages in use are more intuitive: welded connection does not require flanges, saving bolts and gaskets. It not only occupies less installation space but also fundamentally reduces leakage points-many old customers say that after installing this gate valve, they no longer have to check the flange for leakage every day. The gate is a double-gate elastic structure, which can automatically compensate for the wear of the sealing surface. Even if the pipeline has slight deformation, it will not affect the sealing effect. If the production line requires both adjustment and quick cut-off functions, using it with our floating ball valve-one for stable flow control and the other for instantaneous cut-off-can directly maximize efficiency and safety.
Now it is widely used in fields such as chemical industry, petroleum, power plants, and long-distance pipelines: for example, on crude oil long-distance pipelines, it can realize remote and precise flow cutoff; in the steam pipelines of power plant boilers, it never "fails" under high temperature and high pressure; when transporting corrosive media in chemical workshops, the 316 stainless steel material can resist corrosion and does not need to be replaced for many years.
We have always attached great importance to after-sales service when making products. This welded gate valve comes with a one-year warranty. If you have questions about the welding process during installation, the technical team can provide on-site guidance; even if there is a minor fault later, there will be a response within 24 hours, and spare parts are all in stock, so it will not delay the resumption of production of the production line. Want to know more? Follow Zhengmao Valve's official website, where the latest project cases and product upgrade information will be updated. For example, recently, in a natural gas long-distance transportation project, the customer used the welded gate valve in combination with the floating ball valve, and its stability was highly recognized by the party A. These practical experiences will be shared with everyone. Feel free to contact us if you have needs, and we will definitely match you with the most suitable solution.
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