Parker 针阀
Parker Needle Valves
20DBNV系列双截断排放针型阀 Needle Valve, Double Block and Bleed 20DBNV Series - 20,000 PSI

派克Autoclave的20DBNV系列是一个三阀块和排气紧凑型系统，旨在用于仪表系统的阻塞，放气和校准。 该阀为非旋转上升杆设计，额定压力为20,000 psi（1379 bar）。 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).

派克Autoclave的20DBNV系列双关和泄放针阀是一种三系统歧管阀，提供了一种经济，便捷的方法来阻塞，泄放和校准压力变送器和压力表。 该阀采用标准的阀填料和阀杆设计，使其紧凑且易于使用。 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, bleed?ing and calibrating pressure transmitters and gauges. The valve utilizes standard valve packing and stem design making it compact and easy to use.

这些阀具有上升杆杆坯体设计，工作压力达20,000 psi（1379 bar）。 锥形和螺纹连接使用尺寸为1/4“至3/8”“的Parker高压釜管。 使用特殊的石墨编织纱盘根（GY），工作温度可以从0°F到800°F（-17.8°C到427°C）。 316不锈钢结构是标准材料，并提供其他选项。 这些阀门具有许多功能，可在各种应用中提供可靠且无故障的服务。 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.

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

派克 Autoclave双截断排放阀专为校准应用而设计，能在压力达20,000 psi（1379 bar）情况下安全可靠地工作.

派克Autoclave's的双截断排放阀广泛应用与化学/石油化工，以及石油和天然气工业.这种阀门采用锥管螺纹的设计，气体和液体密封性能良好.这三个阀门系统提供一种便捷的方法用于阻塞，泄放和校准压力传感器和压力计.

特点
中压管道尺寸：1/4"-1";
20DBNV系列在小型封装中提供大型阀门性能.
上升杆/棒料体设计.
金属对金属阀座具有出色的耐腐蚀性和温度范围.
PTFE密封填料提供可靠的阀杆和阀体密封.
Vee杆端.
工作温度-0潞F(-17.8潞C)到450潞F(232潞C)

市场Markets:

- Oil and Gas
- Petrochemical
- Chemical
-石油和天然气
-石化
-化学

特点/优势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)
-20DBNV系列阀门设计以小包装形式提供了较大的阀门性能。
-管尺寸：1/4“至1”。
-阀杆/棒料主体设计不断提高。
-金属对金属阀座实现了气密性关闭，在磨料
流中具有更长的阀杆/阀座寿命，在反复的开/关循环中具有更高的耐用性，并具有出色的耐腐蚀性。
-PTFE密封填料提供可靠的阀杆和阀体密封。
-选择了阀杆和填料压盖设计，以延长螺纹循环寿命并降低手柄扭矩。
-温度从-100°F（-73°C）到600°F（316°C）

应用Applications:

- Calibrating Transmitters
- Gauge Testing
- Pressure Monitoring and Test
- Chemical Injection
-校准变送器
-压力表测试
-压力监控和测试
-化学注入

Technical Specifications

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