Control valves are a type of valve mainly used to regulate fluid flow. They commonly offer several benefits in various applications. These valves consist of several specific types. Some of the most common and beneficial ones are altitude (float) valve, ductile cast iron globe valve, flow control valve, needle valve, pressure-reducing control valve, pressure-sustaining valve, and pump control valve. The critical feature of all these types is regulating the flow of the fluid running through the pipelines. At YasminTrading, we are ready to represent the best of these types to you.

What is a Control Valve?

According to Realpars, control valves are mainly used in industrial applications such as gas and oil production, power generation, and chemical processing. These industrial fluid control valves provide safe and reliable system operation. They are considered flow regulation valves that operate perfectly at different temperatures and pressures.

Applications of Control Valves

Control valves are useful in various applications. Only these valves can ensure many essential factors in a system.  
  • Control valves mainly regulate the flow of the fluid in pipelines to reach the intended flow rate.
  • Control valves regulate liquid levels to prevent overflow or underflow of fluid in tanks.
  • They precisely maintain the fluid's fixed temperature by regulating the flow of heating or cooling fluids.
  • Control valves control pressure in the system to avoid overpressure situations.

Benefits of Control Valves

Control valves offer several benefits for the above applications. Some of these features are key to their popularity in the industry.  
  • Energy waste is highly reduced by applying these valves to increase efficiency.
  • Control valves provide an automated control in the system.
  • These valves prevent any signs of overpressure or underpressure, increasing the level of safety.
  • When used as water pressure control valves, control valves have thorough control over flow, pressure rating, and temperature.
  • They reduce the risks of wear and tear on the equipment. This is possible by staying within the design limits.

What Are the Types of Control Valves Available at YasminTrading?

Referring to Emerson, control valves consist of many different types. We provide you with various of these types at YasminTrading. We try to make sure you get the best out of these valves for different applications, such as pressure management in pipelines. The most practical and beneficial types of control valves are as follows:

Altitude (Float) Valve

Altitude valves are the first type of control valves we have at YasminTrading. You may have heard about these valves as level control valves or float valves. Their job is to control and keep the liquid's level constant. They consist of two different components: a float and a valve mechanism. The mechanism is quite simple yet very effective and reliable.  
  • Altitude valves are used in water supply systems to control the water pressure.
  • They also help keep the temperature of the system constant in the heating or cooling conditions.
  • They provide an automatic operation with precise control. This makes them a wise option for fire protection systems.
  • They are safe options in different industries and superbly cost-effective, especially in the long term.
  • With the change of liquid level, the float rises or falls to start the valve mechanism.

Ductile Cast Iron Globe Valve

Ductile cast iron globe valves are a specific type of control valve. Globe valve applications are fairly critical in different situations. These valves are made of ductile cast iron, as the name suggests. Different components of these valves are made of different materials; for instance, the body is made of ductile cast iron, and the disc is made of stainless steel. Ductile cast iron globe valves come in various sizes, pressure ratings, and connections.  
  • This type of control valve is suitable for several different fluids. They can operate with water, oil, steam, and gas.
  • The strength of ductile cast iron makes this type of valve a reliable choice for systems.
  • Ductile cast iron globe valves provide easy maintenance and a quite simple repair.
  • They are available in different configurations. This makes them a suitable option in many applications.
  • A ductile cast iron globe valve throttles or regulates the fluid flow level in pipelines.

Flow Control Valve

Flow control valves, like other types, generally control and regulate the flow rate in pipelines. Their main feature is to adjust the flow to the intended level and even shut off the flow entirely. They have a regulating mechanism to precisely control the flow rate. Only some designs have a check valve to avoid the risk of backflow. They consist of a body, seats, and seals typically made of PTFE, metal, and rubber.  
  1. Flow control valves mainly regulate fluid flow in different conditions. They become useful in industrial processes, such as oil and gas production and power generation.
  2. Flow control valves have precise control over the flow rate in pipelines and systems.
  3. They control fluid flow in HVAC systems or water treatment plants.
  4. Some designs of these control valves are perfectly suitable when working with corrosive fluids.
  5. These valves must be maintained regularly for the best operation and to avoid the risk of leakage.

Needle Valve

Needle valves are another type of control valve. These valves use a plunger to control the fluid flow in the pipeline. This plunger moves up and down to help it control the flow. These valves can operate differently; they can either operate manually or be handled by electric or pneumatic actuators. They are also available in various sizes and materials.  
  • Needle valves are used in laboratories, medical devices, and analytical instruments due to the precise control they provide over the flow rate.
  • This type of control valve is ideal for controlling the flow of gas or low-viscosity liquids.
  • A significant benefit is their compact size and lightweight.
  • They are typically used for applications with low pressure. The amount of pressure used is generally up to 1000 psi.
  • Some of these valves possess a locking mechanism. This mechanism prevents accidental flow adjustment.

Pressure-Reducing Control Valve

Pressure-reducing control valves are considered the automatic type of control valves. They change high unregulated pressure to reduced regulated pressure. They can operate independently without an external source of power. These valves are mainly used in steam systems and bypass valve applications.  
  1. Pressure-reducing control valves are able to take care of pressure fluctuations.
  2. They provide protection against water hammers.
  3. These valves show precise control over downstream pressure.
  4. The bypass valve is used when power failure happens.

Pressure-Sustaining Valve

Pressure-sustaining valves, or PSVs, are supposed to maintain a constant upstream pressure. They are applied in different industries, such as water systems, cooling systems, and heating systems.  
  • They provide an accurate control of pressure to prevent any potential damage to equipment.
  • Pressure-sustaining valves are highly energy-saving due to the reduction of the need to pump fluids.
  • These valves are commonly used in water distribution systems. This is because they can maintain a constant pressure.

Pump Control Valve

Pump control valves regulate pump start-up and shut-down. They provide smooth and reliable operation and can prevent pressure spikes.  
  • They can control opening and closing speeds and adjust them as desirable.
  • These valves are able to optimize the performance of the pump.
  • Pump control valves provide a longer service life and lower maintenance costs.
  The table below shows the difference in the technical specifications of different types of butterfly valves.  
Valve Type Size Range Function Materials Applications
Altitude (Float) Valve 1/2" to 12" Controls fluid level based on float position Ductile iron, stainless steel Irrigation, water supply
Ductile Cast Iron Globe Valve 1/2" to 48" Throttles or starts/stops flow Ductile cast iron, stainless steel Water, steam, oil, gas
Flow Control Valve 1/4" to 12" Regulates fluid flow rate Stainless steel, brass Process control, HVAC
Needle Valve 1/8" to 1" Precisely regulates small flows Stainless steel, brass Hydraulics, instrumentation
Pressure-Reducing Control Valve 1/2" to 24" Reduces high upstream pressure Stainless steel, carbon steel Water systems, steam systems
Pressure-Sustaining Valve 1/2" to 24" Maintains constant upstream pressure Stainless steel, carbon steel Water distribution, irrigation
Pump Control Valve 1/2" to 36" Prevents surges during pump operation Ductile iron, stainless steel Water systems, industrial processes
 

Why Choose YasminTrading As Your Control Valve Supplier?

At YasminTrading, we try our best to help you make the best choice of material. Our professionals are ready to provide you with any needed information. You can contact us for expert help with your equipment needs.