23E Type PTFE Lined Rotary Plug Control Valve

The Pfeiffer 23e PTFE-lined rotary plug valve is engineered to cater to general service applications within the ANSI 150 pressure class rating parameters. These applications primarily involve handling highly corrosive media commonly encountered in chemical processes. While the Pfeiffer 23e design enhances flow capacities, it also diminishes the pressure recovery factor, rendering it more susceptible to issues like cavitation, flashing, and flow noise generation. This rotary plug's design enables bi-directional flow, with one direction favouring control valve applications (where flow pushes the plug out of the seat) and the other direction favouring shut-off applications (where flow pushes the plug into the seat).
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Key Features

Key features and benefits of 23E Type PTFE Lined Rotary Plug Control Valves.
1

Key Features

The rotary plug valve allows for bi-directional flow, catering to both control valve and shut-off applications. This versatility enables seamless integration into various process control systems.
2

Key Features

Despite its compact design, the Pfeiffer 23e offers increased flow capacities, optimising process efficiency. However, it's important to note that the design also considers factors like pressure recovery, minimising issues such as cavitation, flashing, and flow noise generation for reliable operation.
3

Key Features

Specifically designed for handling highly corrosive media, the PTFE lining ensures superior protection against corrosion, making it ideal for use in chemical processes.

Valve Standards & Stuff
Maximum Pressure Rating: ANSI 150
Temperature Range: -10 to 200C
Size Range: DN25 - DN100 (1" to 4")
End Connection: Flanged
Body Material: Cast Iron

FAQs

What is a control valve and how does it work?
A control valve regulates the flow of fluid by varying the size of the flow passage as directed by a signal from a controller. This adjustment impacts the rate of flow as well as the process quantities such as pressure, temperature, and fluid level.
What are the main types of control valves?
The main types of control valves include globe control valves, which offer precise flow control; rotary control valves, known for their versatility and efficiency; and specialty control valves, designed for specific, often challenging applications.
How do I choose the right type of control valve for my application?
The choice depends on several factors including the nature of the material to be controlled (liquid, gas, or steam), the required flow rate, the pressure drop across the valve, and the specific control characteristics needed. Consulting with a valve specialist is often recommended.
What are globe control valves and their advantages?
Globe control valves are characterized by a linear motion to throttle flow. They are highly effective for precise control in low to moderate flow rates and are favored for their ability to handle a wide range of operating temperatures and pressures.
Can rotary control valves be used for slurry applications?
Yes, certain rotary control valves are designed to handle slurry applications. Their design minimizes cavitation and erosion, making them suitable for liquids with suspended solids. However, the specific choice of valve depends on the slurry's characteristics.
What makes specialty control valves different?
Specialty control valves are engineered to address unique or challenging conditions not met by standard globe or rotary valves. This includes extreme pressures or temperatures, handling hazardous materials, or precise control demands.
How can I ensure the longevity of my control valves?

Use filtration upstream of the valve to prevent particulate matter from damaging seals or blocking flow paths. Clean media flow helps reduce wear and internal abrasion.

What role does material selection play in control valve performance?
Material selection is critical for ensuring compatibility with the fluid, resistance to corrosion or erosion, and suitability for the operating temperature and pressure. Incorrect material selection can lead to premature valve failure and operational issues.

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23e Type PTFE Lined Rotary Plug Control Valves