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Learn More About Flanged Globe Valve
Specifications
Closure Design:
The valve flap moves along the centerline of the valve seat, ensuring precise shut-off.
Proportional Stroke:
The valve seat port changes proportionally to the valve flap stroke, allowing precise flow regulation.
Short Stroke:
The relatively short stroke of the valve stem enables effective shut-off functionality.
Flow Regulation:
The proportional design makes flange globe valves ideal for controlling flow rates, providing both shut-off and throttling functions.
Ideal Applications:
Suitable for use in systems requiring both shut-off and flow regulation.
Working Principle and Characteristics of the Flange Globe Valve
- The flange globe valve is a crucial shut-off valve that utilizes torque applied to the stem. This torque forces the valve flap against the valve seat in the axial direction.
- The tight contact between the sealing surfaces of the valve flap and valve seat prevents medium from leaking through any gaps.
- The flange globe valve features a sealing mechanism made up of the valve flap sealing surface and the valve seat sealing surface.
- The stem moves the valve flap vertically along the centerline of the valve seat.
- Small valve flap opening height allows for easy flow adjustment during operation.
- Simple design enables easy manufacturing and maintenance.
- Suitable for a broad range of pressure applications.
- Versatile and adaptable in various operational settings.
Advantages and Disadvantages of the Flange Globe Valve
A. Advantages of the Flange Globe Valve
- Simple Structure: The flange globe valve features a straightforward design, which makes it easier to manufacture and repair.
- Efficient Operation: With a small working stroke, the valve has short opening and closing times, contributing to efficient operation.
- Reliable Sealing: The valve provides good sealing with low friction between the sealing surfaces, resulting in a longer service life.
B. Disadvantages of the Flange Globe Valve
- High Fluid Resistance: The flange globe valve experiences significant fluid resistance, requiring more force to open and close.
- Limited Media Compatibility: This valve is not suitable for media with particles, high viscosity, or those prone to cooking.
- Suboptimal Adjustment Performance: The valve has poor performance when it comes to flow adjustment.
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Specs of Flanged Globe Valve
Material and Construction
Size
Operating Mechanism
Features of Flanged Globe Valve
Non-Rising Stem
Many Flanged Globe Valves are equipped with a non-rising stem, which is particularly useful in installations with limited vertical space. The stem remains in the same position while the valve is operated, providing a clear indication of the valve's status without requiring extra space. I guess this design is beneficial for compact or space-constrained environments.
Seat Rings
Flanged Globe Valves often include renewable seat rings, which can be replaced when they wear out. This feature extends the valve's lifespan, as it allows for easy maintenance and replacement of worn parts without the need to replace the entire valve. It is a cost-effective solution for maintaining valve performance over time.
Multi-Turn Operation
These valves are designed for multi-turn operation, meaning the valve requires several turns to open or close fully. This feature provides more precise control over the flow rate, allowing for fine adjustments. It is particularly useful in applications where gradual changes in flow are necessary, such as in process control systems.
Benefits of Flanged Globe Valve
Easier Maintenance
The design of Flanged Globe Valves allows for easier maintenance and servicing. Components like the bonnet, disc, and seat can be accessed and replaced without difficulty. This ease of maintenance reduces downtime and helps keep systems running smoothly. This benefit is useful for manufacturers like NTVAL, as it ensures our systems partner operate efficiently and with minimal interruptions.
Reduced Leakage
One of the key benefits of Flanged Globe Valves is their ability to minimize leakage. The design of the valve, including the tight sealing between the disc and seat, helps prevent fluid from escaping, even under high-pressure conditions. This benefit is crucial for maintaining system integrity and safety.
Increased Durability
Constructed from high-quality materials like stainless steel and carbon steel, Flanged Globe Valves provide increased durability. These materials resist corrosion and wear, allowing the valves to withstand harsh operating conditions. This durability translates into a longer lifespan and reduced need for frequent replacements, offering cost savings over time.
Applications of Flanged Globe Valve
Oil and Gas Industry
Power Generation Plants
Chemical Processing
Water & Sewage
Considerations When Buying Flanged Globe Valve
01
Class 300 Flat Face End Connection
02
At Least ANSI Class 600
03
ISO 45001
FAQ's
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