JJAY1 Sampling Flange Needle Valve
Core Function & Application Positioning
This needle valve for vacuum control adopts flange-type sampling connection, which can realize medium sampling of DN50-DN100 large-diameter pipelines, and has the precise flow control function of a needle valve with adjustable sampling flow rate, suitable for sampling monitoring of large petrochemical pipelines and can complete sampling without affecting the main pipeline flow. The needle valve for vacuum control is designed for large-diameter pipeline sampling.
Material & Craftsmanship
The valve body is forged with 304/316 stainless steel. The flange sealing surface is nitrided to improve hardness. The sampling channel and flow control valve stem are independently designed to ensure that sampling and flow control do not interfere with each other. The sealing element is a metal wound gasket with excellent sealing performance, ensuring the sealing of the needle valve for vacuum control.
Specification Advantages
All specifications match national standard GB and American standard ANSI flanges, cover different large-diameter pipelines from DN50 to DN100, support customized sampling accuracy from 0.5-50L/min, and can provide customized heat-tracing structures.
Summary
The flange connection of this needle valve for vacuum control is suitable for large-diameter pipelines. The independent design of sampling and flow control ensures efficiency. The nitrided flange seal prevents leakage. The heat-tracing customization can also adapt to high-viscosity medium sampling, making it a core component of large petrochemical sampling systems.
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