3331 Type Centric Butterfly Control Valves

The Type 3331 butterfly valve with centric control is specifically designed for general service applications within the ANSI 300 pressure class rating. It excels at handling erosion, abrasion, and corrosion challenges. While it improves flow capacities, it compromises pressure recovery, making it susceptible to cavitation, flashing, and flow noise. Consequently, this design requires higher breakaway torques from the actuator. Standard options include swing-through, step-seated, angle-seated, or low-noise disc designs, as well as temperature extensions. It can be coupled with pneumatic, electric, hydraulic, or electro-hydraulic actuators provided by SAMSON Group.
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Key Features

Key features and benefits of 3331 Type Centric Butterfly Control Valves
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Key Features

3331 Type Centric Butterfly Control Valves require minimal material compared to other valves of similar size, optimising resource utilisation.
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Key Features

Pneumatic operation enables swift stroking, ensuring prompt response in process control scenarios.
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Key Features

With the ability to be clamped between DIN and ANSI flanges, these valves offer flexibility in installation across different systems.

Valve Standards & Stuff
Maximum Pressure Rating: 150 to 300
Temperature Range: 14 to 752°F (-10 to 400°C)
Size Range: 4" to 16"
Weight Range (kg): 13 to 98
Application Type: Industrial & General Service Applications, e.g., Erosion, & Abrasion etc
Body Material: Cast / Stainless Steel
End Connection: Wafer

FAQs

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.
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.
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.
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.
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.
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.

Control valve life can be extended by keeping them clean, well-lubricated, and used within their rated capacity. Consider integrating sensors or limit switches for real-time feedback and preventative care.

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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3331 Type Datasheets & Certificates

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DATASHEET

3331 Type Centric Butterfly Control Valve
  • Document
DOCUMENT

Mounting & Operating Instructions
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3331 Type Centric Butterfly Control Valve