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

Parker's bar stock hand valves designed for isolation and regulation in low flow critical applications. Available in straight (HNV) and angle (HNAV) styles, in pressure ratings up to 6,000 psi (414 bar) and 10,000 psi (689 bar).

Полное описание продукта

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. 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.

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

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
• 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

Характеристики

Дополнительные функции:	Contact Parker for other options
Коэффициент пропускной способности:	0.35
Типоразмер диафрагмы:	4 mm
Для типа жидкости:	General Gaseous and Liquid Media