Introductions.

Gate, globe, and check valves are widely installed in various industries, such as oil and gas, chemical and petrochemical, onshore and offshore drilling/refining, and power industries. F-V offers a vast selection of globe valves for various applications. Pneumatic actuated globe valves are very beneficial in controlling fluid flow by using compressed air or gas. This article will discuss the advantages, applications, and frequently asked questions about pneumatic actuated globe valves.

These types of valves are highly reliable, durable, and easy to use. They provide quick and precise control, excellent sealing performance, and require low operating torque. Furthermore, they can handle high pressures and temperatures, making them ideal for use in harsh environments.

Technical Specifications:

Description	Specification
Sizes	NPS 1/2 to NPS 48
Pressure Class	Class 150 to 2500
Casting Materials	A216 WCB, WC6, WC9, A350 LCB, A351 CF8, CF8M, CF3, CF3M, A995 4A, A995 5A, A995 6A
Forging Materials	A105, A182 F304, F3304L, F316, F316L, A182 F51, F53, A350 LF2, LF3, LF5
Other Materials	Alloy 20, Monel, Inconel, Hastelloy
End Connections	RF, RTJ, SW, NPT or BW
Stem Design	Outside Screw & Yoke (OS&Y), rising stem
Bonnet Type	Bolted Bonnet or Pressure Seal Bonnet
Operator	Single Acting Pneumatic Actuator / Double Acting Pneumatic Actuator

Design Standard

Design & manufacture according to API 600, API 603, ASME B16.34

Face-to-face according to ASME B16.10

End Connection according to ASME B16.5 (RF & RTJ), ASME B16.25 (BW)

Test & inspection according to API 598

Also available per NACE MR-0175, NACE MR-0103, ISO 15848, API624

Advantages of Pneumatic Actuated Globe Valve

1. Quick and Precise Control: Pneumatically actuated globe valves provide fast and accurate control over fluid flow. They can be easily adjusted to regulate the flow rate and pressure of the fluid.
2. Good Sealing Performance: The spherical shape of the globe valve enables a tight seal between the valve and the seat. This ensures that there is no fluid leakage, and the valve can be used for a long time without maintenance.
3. High Reliability: Pneumatically actuated globe valves have a simple structure with fewer moving parts, making them highly reliable and durable. They can be used in harsh environments without any issues.
4. Low Operating Torque: The pneumatic actuator provides sufficient force to control the valve stem, reducing the operating torque needed to open or close the valve. This makes the valve easy to operate with minimal effort.
5. Easy to Automate: Pneumatically actuated globe valves can be easily automated using a control system. This enables remote control and monitoring of the valve, making it ideal for industrial applications.

Applications of Pneumatic Actuated Globe Valve

1. Chemical Industry: Pneumatic actuated globe valves are widely used in the chemical industry to control the flow of various liquids and gases.
2. Power Generation: Globe valves are used in power plants to regulate the flow of steam, water, and other fluids.
3. Oil and Gas Industry: Pneumatic actuated globe valves are used in the oil and gas industry to control the flow of crude oil, natural gas, and other fluids.
4. Water Treatment: Globe valves are used in water treatment plants to control the flow of water and other liquids.

Q&A

Q: What is the difference between a globe valve and a gate valve?

A: A globe valve has a spherical shape that allows for a tight seal between the valve and the seat. A gate valve has a flat gate that moves up and down to control the flow of fluid.

Q: What is the maximum pressure that a pneumatic actuated globe valve can handle?

A: The maximum pressure that a pneumatic actuated globe valve can handle depends on the size and type of valve. Generally, these valves can handle pressures up to 2500 psi.

Q: Can pneumatic actuated globe valves be used for high-temperature applications?

A: Yes, pneumatic actuated globe valves can be used for high-temperature applications. The valve body and seat can be made of materials that can withstand high temperatures.

In conclusion, pneumatic actuated globe valves are reliable, durable, and easy to use. They are widely used in various industries due to their quick and precise control, good sealing performance, and low operating torque. With their ability to handle high pressures and temperatures, they are ideal for use in harsh environments.

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