Gas pressure regulator YQJG (F) series

diaphragmsingle-stagebrass

Product overview
Panel pressure regulators of the YQJG(F) series (models YQJG(F)-＊a, YQJG(F)-＊b, YQJG(F)-＊c) are intended for precision pressure control of high-pressure gases such as high-purity gases and standard mixed gases. They can be mounted in pipelines and instrument panels and are widely used in metrology and control equipment, chemical processing, food industry, environmental protection and similar sectors.

Product features

• Single-stage pressure regulator, suitable for pipeline and panel mounting.
• Material options: brass for non-corrosive gases; stainless steel 316L for corrosive gases.
• Valve diaphragm: metal diaphragm; sealing materials: PTFE to prevent secondary contamination with high-purity gases.
• Simple, practical construction with integrated multi-channel filters; designed for long service life and for use with various gases.
• High-pressure construction with excellent sealing performance; suitable for precision control of high-pressure and standard mixed gases.

Model variants / selection notes

• Available model groups: YQJG(F)-＊a, YQJG(F)-＊b, YQJG(F)-＊c (different configurations according to connection/orientation and application).
• Selection aids and flow characteristic curves are provided as figures/diagrams to support model selection under different operating conditions.

Applications

• Precision pressure regulation of high-purity gases and standard mixed gases.
• Instrumentation and measurement devices, chemical processes, food technology, environmental protection and related industries.

Technical specifications

• Max. inlet pressure: 15 MPa
• Outlet pressure options: 0.12 MPa / 0.2 MPa / 0.45 MPa / 0.75 MPa
• Pressure stabilization: within a gas source pressure range of 5–15 MPa, an input pressure change of 1 MPa causes an output pressure change of no more than 7 x 10^-3 MPa.
• Flow characteristic: when inlet pressure > 2 MPa and flow is regulated within the nominal range, output pressure variation should not exceed ±6% of the output pressure gauge full scale.
• Internal and external leakage rate: < 5 x 10^-9 Pa·m³/s
• Valve / sealing materials: metal diaphragm (valve), PTFE (seals)
• Material options: brass / stainless steel 316L
• Integrated multi-channel filter
• External dimensions: see figures in product sheet/diagrams
• Packaging size: 205 x 175 x 145 mm