Parker’s bar stock HNV and HNAV Series hand valves with small ports and needle stem tip allow precise flow regulation for a wide variety of media in low flow applications. They feature an anti-blowout stem, a self centering, non-rotating stem tip and an externally adjustable gland. As standard, the needle valves have metal-to-metal seats to ensure 100% bubble-tight shut-off, and PTFE gland packing. Soft seat, large bore seat options and graphite packing are also available, along with an extensive range of corrosion resistant body materials, mounting options, anti-tamper spindles, lockable handwheels and T-bars.

Parker’s H series hand valves are available with a wide array of connection types and sizes and arecertified to ISO 15848 Class C for fugitive emissions. For the ultimate in safety, reliability, speed, and ease of installation these valves can be specified with integral tube connections utilising Parker A-LOK® (Two Ferrule) or CPITM (Single Ferrule) compression fitting technologies.

Parker’s hand valves are used in every industry in a wide range of applications – anywhere where accurate and secure control or metering of steam, air, gas, oil, water, or other non-viscous liquids is required. They can be used as both on/off valves and for throttling service.