Small-bore piping and instrument lines often need very fine control rather than a quick open-or-close movement. Even a small change in valve position can affect the flow reaching gauges, sampling points and process instruments, which is why needle valves use a tapered stem to make gradual, controlled adjustments.
SVR Global operates as a Needle Valve Manufacturer in USA, supplying compact valves for applications where precise flow adjustment and dependable shutoff are required. Their multi-turn operation allows small, repeatable changes without causing sudden shifts in the rest of the system.
What is a Needle Valve?
A needle valve is a multi-turn valve that regulates flow through a small opening using a slender, tapered needle. Turning the handle moves the needle in a controlled linear direction, increasing or reducing the flow area in small steps.
Because the opening changes gradually, the valve can provide much finer adjustment than a quarter-turn design. Needle valves are commonly used in instrumentation, sampling, gauge isolation, hydraulic and pneumatic circuits, and other small-bore process connections.
Needle Valve Features
• Fine multi-turn adjustment for controlled flow regulation
• Compact construction for small-bore piping and instrumentation
• Straight and angle body patterns
• Non-rotating needle options for reduced seat wear
• Metal and soft-tip seating arrangements
• Threaded, socket-weld and tube-fitting connection options
Needle Valve Specifications
Specification | Available Configuration / Standard |
Size Range | 1/8 in. to 2 in. |
Pressure Rating | Up to 10,000 psi, depending on material and design |
Material | Stainless Steel, Carbon Steel, Brass, Alloy 400, Alloy C-276, Duplex Stainless Steel, Super Duplex Stainless Steel, 6Mo, Titanium |
Grades | ASTM A182 F304 / F316; ASTM A105 / ASTM A350 LF2; ASTM A182 F51; UNS S32750 / S32760; UNS S31254; ASTM B564 N04400; ASTM B574 N10276; ASTM B283 C37700; ASTM B348 Grade 4 |
Packing / Seal Materials | PTFE, Graphite, PEEK, PCTFE, NBR, FKM, EPDM |
Body Pattern | Straight, Angle |
End Connections | NPT Threaded, ISO Threaded, Socket Weld, Tube Fitting |
Standards | MSS SP-99, ASME B16.34, ASME B31.3, ASME B1.20.1 |
Industries Using Needle Valves
• Oil & Gas
• Petrochemical & Refining
• Chemical Processing
• Power Generation
• Marine & Offshore
• Instrumentation & Testing
• Hydrogen Systems
• Industrial Process Systems
