Parker 球阀
Parker Ball Valves
球阀，旋塞阀 - PR系列 Ball Valve, Plug Valve - PR Series

派克 PR系列旋塞阀，闭合严密，大流量，快速旋转四分之一转开关操作，结构紧凑。此款阀门也为用户提供了优异的节流能力。Parker's PR Series Plug Valves provide positive leak tight shut-off, high flow capacity, and quick quarter-turn operation in a compact, barstock body. This plug valve provides the user the ability to throttle during manual actuation.

派克的PR系列旋塞阀，结构紧凑，大流量，快速四分之一圈操作并保障关断的气密性。防吹出阀座设计实现
在工作压力范围内提供稳定的密封性，普通的旋塞阀是无法实现此功能的。除了开关作用外，旋塞设计还可以实现节流作用。阀座和密封材料的多种选择用以符合介质的兼容性要求以及工作温度范围。PTFE 支撑阀体密封材料，实现有效密封，同时延长了其循环使用寿命。Parker's PR Series Plug Valves provide positive leak tight shut-off, high flow capacity, and quick quarter-turn operation in a compact attractive package. The patented blow-out resistant seat design offers reliable sealing technology at all operating pressures not seen in general purpose plug valves. In addition to on-off actuation, the plug design allows forward flow throttling. A broad selection of valve seats and seal materials may be chosen for media compatibility and performance over a broad range of temperatures. The pressure balanced atmospheric seals are backed by PTFE rings to enhance their performance and increase cycle life.

球阀，旋塞阀 - PR系列 Ball Valve, Plug Valve - PR Series

市场Markets:

- Oil and Gas
- Research
- Chemical
- University Labs
- 石油与天然气
- 科研
- 化工
- 大学实验室

特点/优势Features/Benefits:

- Patented blow-out resistant seat design
- Pressures up to 3,000 psig (207 bar) CWP
- Quarter-turn operation
- Reliable simple design
- Straight-through flow
- Stainless steel and brass construction
- Nitrile, ethylene propylene, fluorocarbon, and highly fluorinated fluorocarbon rubber seats and seals
- PTFE back-up rings on atmospheric seals
- Low operating torque
- Minimum pressure drop
- Throttling capability
- Positive handle stops
- Color coded fracture resistant nylon handles with directional flow indication
- Easy to service
- 100% factory tested
- Options include lock-out devices, downstream venting, and both stainless steel and T-bar handles
- 防吹出阀座设计
- 压力可达3,000 psig (207 bar)CWP
- 四分之一圈操作
- 稳定的简易设计
- 直通流道
- 不锈钢或铜材质阀体
- 多种阀座和密封材料可选：丁腈橡胶，乙丙橡胶，氟橡胶和高氟橡胶。
- PTFE支撑环与密封圈配合使用
- 操作扭矩小
- 压降小
- 具有节流功能
- 手柄限位销
- 带有流向标识的彩色抗裂尼龙手柄
- 易于维护
- 每个产品都经过出厂检测
- 可选辅件包括锁定装置，下游排放孔以及不锈钢T型手柄

应用Applications:

- Control Panels
- R&D Labs
- Specialty Gas Systems
- Chemical delivery
- Fill stations
- 控制盘
- R&D实验室
- 特种气体系统
- 化学品输送
- 加气站

Technical Specifications

Ball Valve, Plug Valve - PR Series 型号