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Parker 針閥 Parker Needle Valves
Needle Valve, Double Block and Bleed 20DBNV Series - 20,000 PSI

Parker Autoclave 的 20DBNV 系列是一種三閥塊和排放緊湊型系統，專為儀器系統的阻斷、排放和校準而設計。該閥門采用非旋轉上升桿設計，額定壓力為 20,000 psi (1379 bar)。派克 Autoclave 的 20DBNV 系列雙截止和排放針閥是一種三系統歧管閥，提供了一種經濟且方便的方法來阻斷、排放和校準壓力變送器和儀表。該閥門采用標準閥門填料和閥桿設計，使其緊湊且易于使用。

這些閥門采用上升桿棒料閥體設計，工作壓力高達 20,000 psi (1379 bar)。錐體和螺紋連接采用 Parker Autoclave 管，尺寸從 1/4" 到 3/8""。使用特殊的石墨編織紗線填料 (GY)，工作溫度可以從 0°F 到 800°F（-17.8°C 到 427°C）。316 不銹鋼結構是標準材料，可提供其他選項。除了它們的許多功能外，這些閥門還可以在各種應用中提供可靠且無故障的服務。

Needle Valve, Double Block and Bleed 20DBNV Series - 20,000 PSI

市場：
- 石油和天然氣
- 石化
- 化學

特性/優點：
- 20DBNV 系列閥門設計以小封裝提供大閥門性能。
- 管道尺寸：1/4" 至 1"。
- 上升的把立/桿身設計。
- 金屬對金屬閥座可實現氣密關閉、更長的閥桿/閥座在磨料
流中的使用壽命、更高的重復開/關循環的耐用性和出色的耐腐蝕性。
- PTFE 封裝填料提供可靠的閥桿和閥體密封。
- 選擇閥桿和填料壓蓋設計以延長螺紋循環壽命并降低手柄扭矩。
- 溫度范圍為 -100°F (-73°C) 至 600°F (316°C)

應用：
- 校準變送器
- 儀表測試
- 壓力監測和測試
- 化學品注入

Parker Autoclave's 20DBNV Series is a three valve block and bleed compact system that is designed for blocking, bleeding, and calibration of instrumentation systems. This valve is a non-rotating rising stem design, rated to 20,000 psi (1379 bar).

Parker Autoclave's 20DBNV Series double block and bleed needle valves are a three system manifold valve providing an economical and convenient method of blocking, bleeding and calibrating pressure transmitters and gauges. The valve utilizes standard valve packing and stem design making it compact and easy to use.

These valves have a rising stem bar stock body design with working pressures to 20,000 psi (1379 bar). The cone and thread connections utilize Parker Autoclave tubing with sizes from 1/4" to 3/8”". Operating temperatures can go from 0°F to 800°F (-17.8°C to 427°C) with special graphite braided yarn packing (GY). 316 stainless steel construction is the standard material with other options available. Along with their many features these valves provide dependable and trouble free service in wide variety of applications.

Markets:
- Oil and Gas
- Petrochemical
- Chemical

Features/Benefits:
- 20DBNV Series valve design provides large valve performance in a small package.
- Tubing sizes: 1/4" to 1".
- Rising stem/bar stock body design.
- Metal-to-metal seating achieves bubble-tight shut-off, longer stem/seat life in abrasive
flow, greater durability for repeated on/off cycles and excellent corrosion resistance.
- PTFE encapsulated packing provides dependable stem and body sealing.
- Stem and packing gland design have been selected to achieve extended thread cycle life and reduced handle torque.
- Temperatures from -100°F (-73°C) to 600°F (316°C)

Applications:
- Calibrating Transmitters
- Gauge Testing
- Pressure Monitoring and Test
- Chemical Injection

Technical Specifications

Needle Valve, Double Block and Bleed 20DBNV Series - 20,000 PSI 型號