Parker HVG Series Needle Valve Needle Valve (6,000 PSI) - Single Port
HVG 系列針閥

Needle Valve (6,000 PSI) - Single Port HVG Series

Parker?帶排氣口的單端口壓力表閥是專門設(shè)計(jì)的閥門，可在任何流體額定值高達(dá)6000 psi（414 bar）的情況下運(yùn)行。帕克的HVG系列單端口壓力表閥的額定值為6000 psi（414 bar），并提供一個(gè)1/4“NPT端口，可供選擇安裝外加排氣/排氣閥或堵頭。所有的HVG系列儀表閥都有一個(gè)自定心的、非旋轉(zhuǎn)的閥軸尖端，以確保100%的氣密性關(guān)閉，并為氣體應(yīng)用提供尖端材料以及PCTFE或PEEK閥座替代金屬對(duì)金屬的選擇。作為標(biāo)準(zhǔn)配置，閥門采用聚四氟乙烯壓蓋填料。可選擇符合BS 6755第2部分和API 607的防火石墨填料。主軸配有防噴逆止器，壓蓋外部可調(diào)。帕克的壓力表閥門是由316不銹鋼制成的，符合NACE標(biāo)準(zhǔn)，也有其他類型的材料可供選擇。

Parker?'s single port gauge valves with vent are purpose designed valves for operation with any fluid up to 6,000 psi (414 bar) rating.Parker’s HVG series single-port gauge valves are rated at 6,000 PSI (414 bar) and provide a single 1/4" NPT port for the optional fitting of a captive bleed/vent valve or blanking plug. All HVG series gauge valves have a self centering, non-rotating spindle tip to ensure 100% bubble-tight shut-off and offer a choice of tip materials as well as PCTFE or PEEK seating alternatives to metal-to-metal, for gas applications. As standard, the valves feature PTFE gland packing. Fire-safe graphite packing to meet BS 6755 Part 2 and API 607 is available as an option. The spindle is equipped with a backstop for blowout prevention and the gland is externally adjustable. Parker’s gauge valves are manufactured from 316 stainless steel as standard, NACE compliant and other types of materials are also available.

Markets:
- Oil and Gas Offshore
- Oil and Gas Onshore
- Petrochemical
- Chemical
- Power Generation

Features/Benefits:
Temperature range of -54 to 538?C (-65 to 1000?F)
- NACE compliant
- 100% repeatable bubble-tight shut-off
- Heat code traceable
- Oxygen clean

Applications:
- Process to instrument interface
- 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

Technical Specifications
Inlet Connection Size: 1/4 (NPT), 3/8 (NPT), 1/2 (NPT) inch, Female, Male
Outlet Connection Size: 1/4 (NPT), 3/8 (NPT), 1/2 (NPT) inch, Female
Materials of Construction: Stainless Steel, Monel, Duplex, Super Duplex, Hasteloy, Carbon Steel, 6Mo, Titanium, Incoloy 825, Incoloy 625
Flow Coefficient 1: 0.35 standard Cv
Maximum Operating Pressure: 6,000 (5,000 for Monel) psi, 414 (345 for Monel) bar
Minimum Operating Temperature: -54 °C, -65 °F
Maximum Operating Temperature: +538 °C, +1000 °F
Seat Material: Metal/metal seated
Packing Material: PTFE as standard, graphite optional
Valve Option: To order individual bleed valves and plugs contact factory
Product Series: HVG