MASONEILAN旋转控制阀MASONEILAN 35002

MASONEILAN旋转控制阀MASONEILAN 35002

梅森兰 35002 系列凸轮™旋转控制阀

描述：

当最初的Camflex于1968年推出时，它创造了一个革命性的新控制阀类别 - 旋转地球仪。这种新型阀门融合了具有旋转作用的传统截止阀的最佳控制功能，生产出能够取代当时使用中至少80%的控制阀的阀门。

从那时起，已经进行了许多改进和增强，在广泛的过程控制应用中安装了超过100万个Camflex阀门。从最基本的水应用到严重侵蚀性服务，一切都会撕裂其他阀门。Masoneilan Camflex阀首先被设计为一个优秀的控制阀，并已被证明是一个真正的通用旋转球形控制阀。

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凸轮-柔性

Camflex阀门的核心是其偏心塞。偏心旋转的双偏移将凸轮插入和移出座椅。这种凸轮作用消除了整个旋转过程中的摩擦，因为与其他旋转阀类型不同，塞子在打开时会从阀座上移开。这确保了对所有开口的精确控制。

凸轮-柔性

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插头偏移，使得插头面的后缘在关闭时将首先接触座环。额外的插头旋转会导致插头臂轻微弯曲，使插头面与座椅完全接触。这种弯曲动作确保了紧密的长期坐姿和平稳的坐姿/下座动作。

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Linear Flow Characteristic with Higher Turndown

Camflex’s linear flow characteristic provides a slight modification as the plug approaches the seat.  As the plug cams into the seat, the rate of change in flow is reduced gradually until the plug contacts the seat.  This provides a Cv ratio of 100:1 for stable operation over a wider range in flow.  Most traditional globe style control valves offer 50:1 maximum. 

Wide Application Range

The standard construction of the Masoneilan Camflex valve includes features that are either optional or simply not available in competing valves.

Integral Extension Bonnet

The integrally cast extension bonnet provides effective radiation of heat in high temperature applications to allow the use of low-friction TFE packing materials across the full rated service temperatures of -196˚C to 400˚C (-320˚F to 750˚F).  Graphite based packing is available as an option for fire-safe applications.

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Standard Low-Emissions Packing

One of the biggest sources of fugitive emissions in plants and pipelines are valves, specifically, emissions leakage from the packing box and sealing gaskets. With an integral bonnet design, the Camflex completely eliminates emissions from the bonnet joint, a huge differentiated benefit over globe valves of similar pressure class.

The Camflex further stands out minimizing packing leakage as every valve produced today comes standard with the EF Seal, low-emissions packing system.  This simple double O-Ring sealed packing system satisfies FCI 91-1 (EPA) requirements. 

In addition, the Optional Low-E packing system has been independently certified to the ISO 15848-1 Class A requirements with both Helium and Methane gas tests. Measured results are more than 25x tighter than the <100 ppm requirement. This system also satisfies the U.S. EPA Certified Low Leak Technology (CLLT) requirements.

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Designed to Resist Erosion

Hardfaced or solid Stellite plug is standard in every Camflex with optional seat rings and retainers available for erosive applications.

Guide bushings are located outside flowstream to prevent impingement of damaging debris on critical guiding surfaces. 

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这些特性有助于延长恶劣工况下的使用寿命。

凸轮

更小、更轻、易于操作

Masoneilan Camflex II由于其灵活的车身选项，也更容易安装和维护。提供螺纹、法兰或法兰端，以满足管道连接要求。Camflex GR配置中还提供了法兰结构，该配置与大多数标准截止阀的面对面尺寸相匹配，从而简化了现有阀门的更换。

无论选择何种端接选项，Camflex 阀门都比截止阀产品小得多、重量更轻 ， 通常只有截止阀产品的一半尺寸和一半的重量。

最小化零件

Masoneilan Camflex II从最初的概念就纳入了产品管理。它不仅消除了标准设计中的阀盖垫圈，而且只需要在单个阀门管路尺寸上安装一个插头。该设计具有不同的座圈，可实现各种流动条件，而无需更改插头，保持架和/或阀杆尺寸。这将有助于最大限度地减少货架上所需的库存，并在相同机身尺寸的其他Camflex安装之间共享一个共同的部件。

低噪声微调选项

低噪音

可选的专利差分速度装置（DVD）将可压缩流分成高速核心和低速包络流。这种差分速度概念类似于商用喷气发动机中使用的概念，并提供高达18 dBA的噪声衰减。

范围：

大小：

1“ 至 16”（25 至 400 mm）

评级和连接：

法兰： ANSI 150 – 600

Flangeless： ANSI 150 – 600 UNI-DIN 10 – 100

拧紧：NPT（1“ 至 2”）

阀体材料：

碳钢 不锈钢 高镍合金

驱动器：

35 型弹簧隔膜

70 型系列气缸

修剪：

偏心旋转插头

固有特性：

线性