Parker Autoclave 4B 系列 4 通球阀
Parker Autoclave's 4B Series ball valves

派克 Autoclave 的 4B 系列球阀旨在提供卓越的质量，以在各种阀门类型、尺寸和过程连接中实现最佳性能。一些更独特的设计创新包括一体式耳轴安装式球和阀杆，消除 了两件式设计中常见的剪切失效，可重新拧紧的阀座密封套，延长阀座寿命，以及低摩擦阀杆密封，减少驱动扭矩并提高循环寿命。这些球阀还可以进行修改，以结合使用特殊材料、高温应用密封件、海底模型和阀门执行器。当涉及到高压应用时，这些球阀 与相关的高压组件一起提供高压市场所需的关键性能。

市场：
- 石油和天然气
- 石化
- 研究
- 化学
- 动力

特性/优点：

- 一体式、耳轴安装式、阀杆设计消除了两件式设计中的剪切失效并减少了侧向载荷的影响。
- 可重新拧紧的阀座密封套，延长阀座使用寿命。
- 填充碳的 PEEK 阀座具有出色的耐化学性、耐热性和耐磨性。
- 全端口流路将压降降至最低。
- 316 冷加工不锈钢结构。
- 低摩擦压力辅助石墨填充 PTFE 阀杆密封可延长循环寿命并降低操作扭矩。
- 提供四分之一转分频器和半转四路切换型号。
- Viton O 型圈，可在 0°F (-17.8°C) 至 400°F (204°C) 的温度范围内运行。
- 可选的O 形圈可用于高温应用。
- 可选的接液材料。
- 有多种管端配件可供选择。
- 电动和气动执行器选项。

应用：
- 测试面板
- 高压滑板
- 化学品注入
- 特种高压气体系统
- 研究系统

Parker Autoclave's 4B Series ball valves have been designed to provide superior quality for maximum performance within a variety of valve styles, sizes, and process connections. Some of the more unique design innovations include an integral one-piece trunnion mounted style ball and stem that eliminates
the shear failure common in two piece designs, re-torqueable seat glands that result in longer seat life, and a low friction stem seal that reduces actuation torque and enhances cycle life. These ball valves can also be modified to incorporate the use of special materials, seals for high temperature applications, subsea models, and valve actuators. When it comes to high-pressure applications, these ball valves
with associated high-pressure components, provide the critical performance demanded by the high pressure market.

Markets:
- Oil and Gas
- Petrochemical
- Research
- Chemical
- Power

Features/Benefits:
- One-piece, trunnion mounted style, stem design eliminates shear failure found in two piece designs and reduces the effects of side loading.
- Re-torqueable seat glands for longer seat life.
- Carbon filled PEEK seats offer excellent resistance to chemicals, heat, and wear/abrasion.
- Full-port flow path minimizes pressure drop.
- 316 cold worked stainless steel construction.
- Low friction pressure assisted graphite filled PTFE stem seal increases cycle life and reduces operating torque.
- Quarter turn crossover, and the half turn four way switching models available.
- Viton o-rings for operation from 0°F (-17.8°C) to 400°F (204°C).
- Optional o-rings available for high-temperature applications.
- Optional wetted materials.
- Wide selection of tube and pipe ended fittings are available.
- Electric and pneumatic actuator options.

Applications:
- Test Panels
- High Pressure Skid Panels
- Chemical Injection
- Specialty High Pressure Gas Systems
- Research Systems

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