OJFLUID stainless steel needle valves are engineered for precise flow control, dependable shutoff, and long-term performance in the most demanding fluid system environments. Whether you are working with high-pressure gases, aggressive chemicals, or sensitive instrumentation lines, our valves ensure consistent reliability and leak-tight integrity.

With decades of manufacturing experience, we provide a wide range of needle valve configurations—including screwed bonnet, integral bonnet, rising plug, and union bonnet types—to meet your specific process requirements. Each series is designed for ease of installation, minimal maintenance, and extended service life.

As a professional valve manufacturer and OEM/ODM supplier, we support clients worldwide with technical consultation, customization options, and responsive after-sales service. Our products are trusted in critical industries such as oil & gas, chemical processing, power generation, semiconductor, and clean energy.

Our needle valves are designed to handle working pressures of up to 10,000 psig (689 bar) while maintaining smooth operation and tight sealing. Using advanced machining and precision surface finishing, we ensure zero leakage and stable flow regulation under extreme temperature and pressure conditions.

Every valve is 100% tested for pressure, performance, and sealing integrity before delivery. To support our global partners, we provide detailed technical data sheets, online guidance, and replacement parts to help customers maintain reliable system operation with minimum downtime.

Key design features include:

• Fine-threaded stem and tapered seat for precise flow adjustment
• Metal-to-metal sealing for long service life and corrosion resistance
• Compact design for easy installation in tight instrumentation panels
• Available with manual, pneumatic, or electric actuation options
• Choice of materials including SS316, SS316L, brass, and special alloys

Screwed Bonnet Needle Valves

Working Pressure:6000 psig (414 bar)

NB Series valves feature a two-piece stem assembly—with cold-rolled upper threads for smooth actuation and a hardened lower stem that enhances wear resistance and ensures reliable, long-term performance.

Integral Bonnet Needle Valves

Working Pressure: NG-3000 psig (207 bar); NGH-5000 psig (345 bar)

With a compact structure that saves installation space and low operating torque for effortless maintenance, these valves are engineered for both efficiency and reliability.

Rising Plug Valves

Working Pressure:6000 psig (414 bar)

A non-rotating stem design helps extend seat life, while the straight-through, roddable flow path ensures maximum flow capacity with minimal pressure drop.

Union Bonnet Needle Valves

Working Pressure: NU-6000 psig (413 bar); NUH-10,000 psig (689 bar)

A two-piece stem design features cold-rolled upper threads for smooth operation and a hardened lower stem that enhances durability. The upper stem lubricant is isolated from the system media to maintain purity and performance.

As a manufacturer and exporter, we supply OEM and ODM services to clients across Europe, the Middle East, and the Americas. Our valves are manufactured under strict quality control systems and comply with international standards to ensure compatibility with major brands in the fluid system industry.

We provide:

• Professional online technical support
• Free product replacement service for qualified issues
• Fast delivery and competitive pricing directly from our factory
• Flexible customization to meet your design or material requirements

From design to delivery, we are committed to providing reliable, high-performance fluid system solutions that safeguard your productivity and profitability. Whether you need standard configurations or customized valve assemblies, our engineering and support teams are ready to assist you every step of the way.

Let’s build safer, smarter, and more efficient fluid systems—together.