Globe Control Valves - SIO
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Globe Control Valves

Features

  • Features & Benefits
  • Compact rugged valve body with integral flanges
  • Precision manufactured valve components provide smooth operation
  • Durable rugged plug and seat construction shuts off tightly
  • Oversized bearings and shafts to handle high pressure drops
  • Threaded valve stem connection and split stem connector provide zero backlashes and assures minimum dead band and hysteresis
  • Factory lubricated packing and valve stem minimizes hysteresis from packing friction
  • ANSI Standard valve body face to face dimensions and bolt patterns
  • Bolted bonnet can be easily removed for easy access to trim for inspection and repair

Materials:

Body: Carbon Steel (WCB) or Stainless Steel (CF8M)

Trim: SS, RPTFE, or PEEK

Cage, Stem, & Seat Ring: 316 SS

End Connections:

150# Flange: 1/2″ to 4″

300# Flange: 1/2″ to 4″

NPT:

1/2″ to 2″

Socket Weld:

1/2″ to 2″

Temperature Range:

-20°F to 800°F

Max. Shut-off Differential Pressure:

Varies with model and options

Range ability:

50:1

Available Actuators:

Electric

Pneumatic Diaphragm

Pneumatic Cylinder (special order)

Manual Hand Wheel

SIO globe control valve, also known as a flanged gate control valve, is a type of control valve with a globe-shaped body that provides high-flow capacity and rangeability and a positive shutoff. It is well-suited to endure high stresses in the pipes without distortion and can withstand high-pressure drops to prevent noise and cavitation. This makes it ideal in a range of applications including oil and gas, water pump stations, minerals, and more.

Our globe control valve is made from durable materials to ensure premium performance. We offer two types of materials for the body – carbon steel and stainless steel. The trim may be made with stainless steel, RPTFE, or PEEK, all of which are excellent for demanding applications, such as high pressures, high temperatures, and corrosive and abrasive media. The cage, stem, and seating ring are made from stainless steel to ensure durability, safety, and reliability of globe control valves.

All SIO globe control valves may be supplied with a pneumatic or electric actuator to provide easy automation and safe working environment.

Flanged gate control valve

Flanged Gate Control Valve Design Features and Options

Body Material Options

The valve body acts as the primary barrier that protects the entire operation of the valve. SIO offers two types of body materials for gate control valves, both of which have excellent tolerance to high pressures and various properties of media flow, such as corrosion, abrasion, and aqueous solutions.

Carbon Steel

Carbon steel is a type of steel that has increased fatigue strength and excellent mechanical properties. It also has a high resistance to corrosion, stress, and sulfides and can maintain optimum performance in high- and low-temperature applications.

Stainless Steel

Stainless steel is highly resistant to high-temperature oxidation and has enhanced mechanical and physical properties. It can withstand severe process conditions, such as extremely high temperatures and pressures, extremely low pressures, cryogenic conditions, and processes involving toxic, corrosive, and abrasive media.

Trim Material Options

A valve trim is essential in guiding the stem when operating a globe control valve. We offer several material options for the trims of our globe control valves, all of which are readily available in our factory.

316 Stainless Steel

316 stainless steel is an alloy of carbon, nickel, iron, and chromium that possesses many benefits. It is a non-magnetic type of stainless steel that has more ductility compared to other types of stainless steel. It works well in highly-stressful environments, such as in oil and gas applications and water and wastewater treatment plants.

RPTFE

PTFE, better known as Teflon, is a versatile material that works well with various demanding applications, such as in the food and beverage, pharmaceuticals, and aerospace among others.

RPTFE, or reinforced PTFE, has enhanced mechanical properties of unfilled PTFE that makes this material stronger, more stable, and improved wear resistance. The reinforcement allows our globe control valves to function better in higher temperatures and pressures than the unfilled PTFE.

PEEK

Polyether ether ketone (PEEK) is a colorless organic thermoplastic polymer that has excellent chemical and mechanical resistance even at high-temperature applications. It can endure thermal degradation and effects of aqueous environments. Because of its strength, it is widely used in chemical process, aerospace, and automotive industries.

Actuator Options

We have different actuators available for our globe control valves to ensure they meet specific system and automation requirements.

Electric Actuator

An electric actuator is a cost-effective and accurate solution for valve automation. It is safe and convenient as it uses electricity to actuate valves, which is readily available. It is also easy to operate since control systems will mainly depend on electric signals to function.

Pneumatic Actuator

A pneumatic actuator is a simple and reliable way of controlling valves automatically. It uses compressed air, which is completely safe and always available, to actuate valves. SIO offers two types of pneumatic actuators:

Diaphragm pneumatic actuator

Source: Engineering 360

Diaphragm Pneumatic Actuator

A diaphragm pneumatic actuator is equipped with a rolling diaphragm that provides enhanced precision. With the positioner, this actuator can be rotated a full 360 degrees to promote ease of operation regardless of the position of the valve.

With this pneumatic actuator, the thrust force relies on the actuator area, spring stiffness, initial compression of the spring, pneumatic supply pressure, etc. It is mainly used with linear motion valves, but also works with rotary motion valves with a linear-to-rotary motion connection.

Pneumatic cylinder

Source: Hydraulics & Pneumatics

Pneumatic Power Cylinders

A pneumatic power cylinder, also known as an air cylinder, is a mechanical device that uses compressed air to generate force in a corresponding linear motion. Since gas is the process fluid, leakage will not drip out and affect or contaminate the work surroundings, making it ideal for applications that require sterility.

How Does a Flanged Gate Control Valve Work?

The plug of a globe control valve, known as the disc, is the closing mechanism of the valve. It moves to the opening of the valve to close it either to block media flow or to reroute it to different areas of the process. When the valve opens, the disc moves away perpendicularly from the seat. This provides less chances of leakage as the disc-to-seat ring contact is more at proper angles, which allows closing force to tightly seat the disk.

The stem, which is connected to the disc, provides the up and down movement that opens and closes the valve. The stem can either be smooth or threaded. A threaded stem allows the globe valve to be operated manually through a handwheel. By turning the handwheel, the globe valve can be partially or fully opened or closed. This allows the valve to operate both in throttling and shut-off applications.

Meanwhile, a smooth stem allows a globe valve to be automatically operated either through a hydraulic, pneumatic, or electric actuator. An automatic actuator promotes easy and safe operation of the valve.

Applications for Flanged Gate Control Valve

1. Oil and Gas Industries

equipment and pipeline in oil refinery in clear sky

A globe control valve is essential in oil and gas industries in providing process control for flow rates, pressures, and temperatures. These applications, such as natural gas processing plants and oil refineries, generally involve high pressures and temperatures as well as hazardous media. In many cases, valves need automation to ensure safety among operators and the entire working environment.

SIO globe control valves may be equipped with an electric or pneumatic actuator that allows them to be automated safely. Electric and pneumatic actuators are safe to operate and their energy sources, electricity and compressed air, are readily available to make sure valves accurate function at all times.

2. Mineral Processing

Gas turbine electrical power plant with twilight

High-quality globe control valves are useful in mineral processing, such as deep mining, to cool, vent, and drain shafts. Mining applications usually handle processes with high chemical reactions, slurries, and corrosive media.

Our globe control valves are made with valve trims, which are the operating parts of the valve that are exposed during operation, with durable materials that can handle such severe working environments. These materials can be 316 stainless steel, RPTFE, and PEEK, all of which have high resistance to various chemical reactions.

3. Petrochemical Industries

Close up of Gas storage sphere tanks in petrochemical industry at twilight

A globe control valve is useful in petrochemical processing plants to regulate fuel and other hazardous fluid systems and to cool water systems and other types of process fluid. Petrochemical applications involve various properties of process flow that could be toxic, abrasive, and corrosive. They also deal with different chemicals wherein leakage can lead to dangerous accidents.

SIO globe control valves are made from either carbon steel and stainless steel, both of which are excellent in handling such demanding applications. These materials have excellent pressure and temperature tolerance properties that ensure globe control valves will operate optimally even with excessive use in demanding applications.

4. Water Applications

Aerial top view recirculation solid contact clarifier sedimentation tank

Water applications include both water and wastewater treatment plants, which involve steam processes, desalination, and wastewater treatment processes. These operations require globe control valves that will control or regulate the media flow and pressure.

With its durable materials, such as stainless steel, an SIO globe control valve is capable of handling different fluid properties of water and wastewater applications. These could include steam, slurries, and clean water. Since the valve is repeatedly exposed to water, creating it with stainless steel will ensure that it does not corrode or rust even when used excessively.

 

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