Needle Pattern Hand Valves, Straight and Angle Styles – H Series

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 are certified to ISO 15848-1 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), CPITM (Single Ferrule) compression fitting technologies, or O-LOK.

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.

Industries:
• Oil and Gas
• Chemical
• Petrochemical
• Power Generation
• Nuclear
• Transportation
• Hydrogen• Petrochemical
Alternate fuels

Features/Benefits:
• Self-centering non-rotating stem tip for bubble-tight shut-off
• Secure anti-vibration gland lock nut
• Anti-blowout low torque back seating stem
• Gland thrust bush for uniform packing compression and tight sealing
• Ergonomic T-bar handle with positive retention
• Dual purpose dust cap provides functional identification
• Externally adjustable gland
• Annealed sealing washer guarantees 100% sealing assurance
• Straight and angled pattern designs available
• Variety of end connections including integral compression fittings for reduced overall user costs
• Bodies and bonnets are fully traceable to original material source
• ISO 15848 Class C Certified
• Certification according to BS EN 10204 3.1 for material and pressure test is available

Applications:
• Pressure & Flow measurement
• Lubrication skids
• Water Treatment
• Chemical injection skids
• Hydraulic systems for wellhead control
• Emergency shut down
• Pumping packages
• Gas booster systems
• Test equipment