Description
Needle Valve - High-Precision Flow Metering & Instrument Isolation
FlowBiz Exports is a premier manufacturer and exporter of precision-engineered Needle Valves. Designed specifically for ultra-fine flow metering, continuous pressure regulation, and instrument isolation in high-pressure and critical process environments, these valves feature a slender, tapered needle spindle that fits seamlessly into a matching valve seat to deliver micro-metered flow accuracy and drip-tight shut-off.
Key Features & Operational Superiority
- Micro-Tapered Stem Plunger: Precision-ground, non-rotating stem tip ensures fine-threaded flow modulation, preventing seat galling and extending operational life.
- High-Pressure Body Rating: Heavy-wall forged or bar-stock construction supports operating pressures up to 6,000 PSI (400 Bar) and 10,000 PSI (700 Bar) under severe service conditions.
- Safety Back-Seating Design: Secondary back-seat sealing mechanism protects stem packing under fully open conditions, preventing blowouts and fugitive emissions.
- Panel-Mountable Options: Available with panel mounting nuts, ergonomic T-bar handles, or phenolic handwheels for seamless integration into control skids and instrument panels.
Technical Specifications & Material Grades
Parameter | Specification Details |
Size Range | DN6 to DN25 (1/4” to 1”) |
Pressure Rating | 3,000 PSI, 6,000 PSI, 10,000 PSI / ASME Class 800 to Class 2500 |
Temperature Range | -54°C to +426°C (PTFE / Grafoil packing configurations) |
Body Materials | Stainless Steel (ASTM A276 / A182 SS316, SS316L, SS304), Monel 400, Inconel 625, Hastelloy C276, Carbon Steel |
Stem & Needle Tip | Hardened Stainless Steel 316 / Stellite 6 Tip (Regulating or Soft Seat PEEK / Delrin Tip) |
End Connections | NPT / BSPT Threaded (Male / Female), Socket Weld, Tube Fitting (Double Ferrule Compression) |
Operation Modes | Manual T-Bar, Knob Handle, Pneumatic Actuator, Electric Actuator |
International Standards & Quality Inspection
All FlowBiz needle valves are manufactured in strict compliance with ASME B16.34, MSS SP-99, MSS SP-105, and BS 6755 standards. Every unit undergoes 100% pneumatic seat testing, hydrostatic shell pressure testing, and helium leak testing as per API 598 and ISO 5208 norms prior to global shipment.
Industrial Applications
Our needle valves are widely specified across precision measurement and dosing infrastructure, including:
- Pressure Gauge, Transmitter & Switch Isolation Lines
- Chemical Dosing & Injection Skids
- Hydraulic & Pneumatic Test Benches
- Oil & Gas Sampling Systems & Wellhead Control Panels
- Steam Boiler Water Level & Sample Cooler Lines
Why Choose FlowBiz Exports?
At FlowBiz Exports, over three decades of manufacturing mastery back every industrial valve we produce. We combine state-of-the-art infrastructure, certified testing procedures (Hydrostatic, Radiography, PMI), and rigorous quality control to deliver long-lasting performance. With global export compliance, custom engineering solutions, direct factory pricing, and committed technical support, FlowBiz is the trusted partner of choice for leading engineering contractors and industrial buyers worldwide.