Parker HNVS4FF H-Series Needle Valve, 316 Stainless Steel

Need pinpoint flow control that holds tight every single time? The Parker HNVS4FF gives you it. Machined from solid 316 stainless bar stock, this straight-pattern needle valve throttles low-flow instrument lines with the fine, repeatable control your analyzers and sample systems demand. The self-centering, nonrotating spindle tip seats bubble-tight, so you get positive shutoff without chewing up the seat. A backstop spindle prevents blowout and guards your operators from a stem that lets go under pressure. PTFE gland packing keeps the stem sealed and adjustable in the field. Rated to a full 6,000 psi and a working range of -65 to 450 degrees F, the HNVS4FF stands up to the aggressive media and swings that refineries, chemical plants, and power stations throw at it. Its 1/4 in. female NPT ends thread straight into your gauge, transmitter, or manifold run. When you need isolation and regulation in one compact, corrosion-fighting package, this is the valve that earns its place. Call Collins-Oliver for a quote.