J41W Needle Valve
Core Function & Application Positioning
This carbon steel needle valve adopts flange connection, with a large-diameter design that can meet the precise adjustment of large-flow fluid from 0 to 500L/min for DN25-DN100, suitable for medium control in industrial pipeline main roads and large hydraulic systems. The carbon steel needle valve can realize stable flow control in large-flow working conditions such as blast furnace hydraulic systems and chemical main pipelines.
Material & Craftsmanship
The valve body is forged with 304/316 stainless steel. The flange sealing surface is mirror-polished with a roughness of Ra≤0.4μm. The valve stem adopts a double-sealing structure: the upper seal is packing seal, and the lower seal is metal hard-sealing, which can withstand the scouring of high-pressure and large-flow media. The valve body has passed a hydrostatic test with a pressure 1.5 times the rated pressure, ensuring the sealing performance of the carbon steel needle valve.
Specification Advantages
All specifications match national standard GB, American standard ANSI and European standard EN flange standards, covering different pressure levels from 16MPa to 40MPa, adapt to various large industrial pipeline systems, and support customized large-diameter non-standard flanges.
Summary
The large-diameter design of this carbon steel needle valve is suitable for large-flow control in main pipelines. The double-sealing structure ensures the stability of high-pressure working conditions, and the multi-standard flanges are compatible with domestic and foreign projects. The mirror flange sealing can also achieve zero leakage, making it a core control component for large industrial pipelines.
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