PORO:Your Professional Globe Valve Manufacturer!

 

Zhejiang PORO Valve Manufacturing Co., Ltd , established in 1997 with oversea's investment, covered an area of 23186 square meters, is a leading manufacturer & sales in China. Today PORO valve has been widely used in domestic and international large-scale petroleum, chemical, electric power, iron and steel, shipbuilding, water treatment and other fields.

 

 
  • Normal Globe Valve
    Globe valve is a linear motion valve, mainly used to open and close the flow of fluid in the pipeline. It has a simple structure, easy operation and good sealing performance.
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  • Y - Type Globe Valve
    Y-type globe valve is a special type of stop valve, and its internal flow channel is Y-shaped, which is different from the Z-shaped flow channel of ordinary stop valve. This unique design gives the Y-type globe valve some unique...
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Why Choose Us
 
 
 

Our Product

Gate valve, Globe valve, Check valve, Ball valve, Butterfly valve and slab gate valve etc. are our products range covered different materials of CS, LTCS, SS, DSS, ALLOY S etc. and standards of ANSI, DIN, BS, JIS, and GB etc.

 
 

Quality Assurance

We have 100% quality guarantee to customers. We will be responsible for any quality problem.

 
 

Production Market

PORO's products are exported to ASEAN, Europe, South America, Middle East, Africa and so on. In the past, the annual business volume was as high as 40 million RMB.

 
 

Rich Experience

Since the establishment of the company, we have focused on production. Our company has many years of production work experience. The concept of customer-oriented and win-win cooperation makes the company more mature and stronger.

 

 

Advantages of Globe Valve
Normal Globe Valve
Y - Type Globe Valve
Y2
Normal Globe Valve

Simple Structure and Manufacturing Process
Globe valves are highly regarded for their simple yet robust construction. Their design typically includes fewer moving parts than other valve types, which simplifies both manufacturing and assembly, resulting in fewer potential failure points and enhancing reliability and longevity. This simplicity results in fewer failure points, improving reliability and lifespan, making globe valves a practical choice for many industrial applications.

 

Good Sealing Performance and Low Friction
One key advantage of globe valves is their excellent sealing capability. When closed, the disc presses firmly against the seat, creating a tight seal that prevents fluid leakage, which is crucial for maintaining system efficiency and safety. Additionally, the design of globe valves ensures low friction between the disc and the seat, reducing wear and extending the valve’s operational life.

 

Precise Flow Control and Throttling Capabilities
Globe valves are known for their ability to precisely control fluid flow. The vertical movement of the disc allows for fine adjustments to the flow rate, making these valves ideal for throttling applications and ensuring optimal system performance. This precise control is essential in systems that require regular modulation of flow rates, such as chemical processing and water treatment.

 

High-Pressure Rating and Versatility
Globe valves are designed to handle high-pressure conditions, making them suitable for demanding industrial environments. Their sturdy construction allows them to manage high-pressure fluids without compromising performance or safety. Additionally, their versatility with various fluids, including liquids, gases, and steam, makes them adaptable for a wide range of industrial applications.

 

Reliable Shutoff Capability
Another significant advantage of globe valves is their reliable shutoff capability. When fully closed, the disc forms a tight seal against the seat, effectively stopping fluid flow. This feature is particularly important in applications where complete shutoff is necessary for maintenance, emergencies, or system isolation, contributing to the overall safety and reliability of the system.

 

Easy Maintenance and Repair
Globe valves are designed for easy maintenance, with accessible components that simplify inspection, repair, and maintenance processes. The disc and seat can be replaced or resurfaced without removing the valve from the pipeline, reducing downtime and maintenance costs. This ease of maintenance ensures the valves remain in optimal working condition, minimizing operational disruptions.

 

Wear Resistance and Long Lifespan
The design of globe valves minimizes wear and tear between the disc and the sealing surface. This low friction during opening and closing reduces the likelihood of leakage and extends the valve’s service life. Their durability and wear resistance make globe valves a cost-effective long-term choice, requiring less frequent replacement and maintenance.

 

Compact Structure
Globe valves are typically compact, with an opening height only about a quarter of the valve seat channel’s diameter. This compact design saves space and is particularly useful in tight installations. The reduced footprint is beneficial in complex industrial systems where space is at a premium.

 

Good Sealing Performance
The excellent sealing performance of globe valves ensures minimal wear and abrasion on the seal surface. The lack of relative sliding between the disc and the body sealing surface (except for conical sealing surfaces) ensures consistent and reliable sealing over the valve’s operational life, further enhancing its reliability and efficiency.

 

Application of Globe Valve

Water Treatment Industry
Globe valves are crucial components in water treatment systems. They are used to regulate the flow of water, control pressure, and prevent backflow. In water treatment plants, globe valves are commonly used in the raw water intake system, chemical injection system, and sludge disposal system. They are also used to regulate the flow of water in pipelines, such as in the distribution networks and pumping stations.

 

Chemical Industry
The chemical industry relies heavily on globe valves to control the flow of various fluids, such as acids, alkalis, and solvents. Globe valves are commonly used in chemical processing plants for controlling the flow of chemicals in pipelines, reactors, and tanks. They are also used to regulate the flow of steam and other gases in the chemical processes. Globe valves are preferred in the chemical industry because they can withstand high temperatures and corrosive environments.

Oil and Gas Industry

Globe valves are widely used in the oil and gas industry for controlling the flow of crude oil, natural gas, and other fluids. They are used in pipelines, refineries, and petrochemical plants. Globe valves are preferred in the oil and gas industry because they can handle high-pressure and high-temperature applications. They are also used to isolate different sections of pipelines and equipment for maintenance and repair.

Power Generation Industry

Globe valves are essential components in power generation plants. They are used to control the flow of steam and water in boilers, turbines, and other equipment. Globe valves are also used to regulate the flow of cooling water in power plants. They are preferred in the power generation industry because they can handle high-pressure and high-temperature applications and are reliable in controlling the flow of fluids.

Food and Beverage Industry

Globe valves are commonly used in the food and beverage industry for controlling the flow of various liquids, such as water, milk, and juices. They are also used to regulate the flow of steam and other gases in food processing plants. Globe valves are preferred in the food and beverage industry because they are easy to clean and maintain and are hygienic.

 

The Difference Between Y-type Globe Valve And Normal Globe Valve

 

Characteristics

Y-type globe valve

Normal globe valve

Flow channel shape

Y-shaped

Z-shaped

Flow resistance

Small

Large

Flow rate

Large

Small

Applicable media

Containing solid particles or viscous media

Clean media

Structure

Complex

Simple

Cost

High

Low

Volume

Large

Small

 

Y - Type Globe Valve

 

Types of Globe Valve

T-pattern Globe Valves
The T-pattern globe valve, also known as a Z-pattern, features a horizontal seat with the disc moving perpendicular to the flow. This design is the most widely used due to its versatility and effectiveness in controlling flow in general-purpose applications, such as water distribution and HVAC systems.

 

Y-pattern Globe Valves
The Y-pattern globe valve is engineered with an angled seat, forming a Y-shape when viewed in cross-section. This design significantly reduces flow resistance and pressure drop, making it more efficient in terms of fluid dynamics. It’s particularly beneficial in situations where low-pressure loss and high flow capacity are critical, such as in cooling systems and oil pipelines.

 

Angle Globe Valves
Angle globe valves are designed with a 90-degree angle between the inlet and outlet, making them ideal for applications involving a change in the direction of flow. The design minimizes pressure drop by eliminating unnecessary turns in the piping.

 

Installation and Maintenance of Globe Valve
 

Installation


Globe valves should be installed with the disk facing upwards to ensure proper seating and minimize wear. This orientation also facilitates easier maintenance and inspection.


Location: Choose an accessible location for the globe valve, ensuring enough clearance for operation and maintenance. For straight pattern globe valves, install them with the stem in a vertical position to prevent sediment accumulation in the valve.

 

Flow direction: Install the valve in the correct flow direction, as indicated by the flow arrow on the valve body. Incorrect installation can result in poor valve performance and reduced lifespan.

 

Support: Ensure proper support for the piping system to minimize stress on the valve body and prevent misalignment or leakage.

 

Gaskets: Use appropriate gaskets or seals that are compatible with the fluid and operating conditions to ensure a leak-free connection between the valve and flanges.

 

Actuator alignment: When using an actuator, make sure it is properly aligned with the valve stem to prevent undue stress on the valve components.

Y2

 

Normal Globe Valve

Maintenance


Regular maintenance is essential to extend the globe valve lifespan and ensure optimal performance. Maintenance tasks include:


Inspection: Conduct regular visual inspections of the valve for signs of wear, corrosion, or leakage. Check the valve’s packing gland for any leaks and adjust or replace the packing material as needed.

 

Lubrication: Regularly lubricate the valve stem, threads, and moving parts according to the manufacturer’s recommendations. Use a lubricant compatible with the valve’s material and operating conditions.

 

Cleaning: Keep the valve and surrounding area clean and free of debris to prevent contamination and ensure smooth operation.

 

Replacement parts: Use only manufacturer-recommended replacement parts for repairs to maintain the valve’s performance and safety standards.

 

Scheduled maintenance: Follow a regular maintenance schedule based on the manufacturer’s recommendations and the valve’s operating conditions.

 

Packaging and Shipping

 

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Our Certificates

 

productcate-572-787

 

FAQ

 

Q: How do high-pressure globe valves manage to withstand high pressures?

A: High-pressure globe valves are designed with robust materials and thicker walls, and often feature a strengthened closure mechanism.

Q: What is the purpose of a position indicator on a globe valve?

A: A position indicator visually shows the valve's open or closed status, aiding in manual checks and system monitoring.

Q: What are the advantages of using an electric globe valve compared to a manual one?

A: Electric globe valves offer remote control and automation, allowing for precise flow regulation and easier integration into control systems compared to manual valves.

Q: What are the components of a globe valve?

A: The main parts of a globe valve are the actuator, stem, body, disc, seat, bonnet and some form of sealing arrangement (packing).

Q: What is the construction of a globe valve?

A: The main components include a spherical body, a movable disc or plug, a stationary seat, and a stem connecting the disc to an external handwheel or actuator. The fluid enters from the port at the bottom and exits from the top of the valve, with the disc moving up and down to regulate the flow.

Q: What is the direction of flow on a globe valve?

A: Depending on the application, a globe valve will have fluid flow above or below the disc. Globe valves can also have pressure flow above the seat when applied as part of high-pressure and high-temperature systems.

Q: What material is the disc in a globe valve made of?

A: Typically, in cast iron globe valves, the disc and seat ring are often made of bronze, while in more demanding applications involving carbon steel or stainless steel valve bodies, the trim material is usually stainless steel.

Q: Is a globe valve bidirectional?

A: A globe valve is not bi-directional and must be fitted in the direction of flow indicated on the body marking, this is normally by an arrow, depending on the application of a globe valve, it can be flow over, or flow under the plug.

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

A: Globe and butterfly valves are both used to control fluid flow, but they differ in their application, design, and functionality. Globe valves are generally used for precise flow control and shut-off, while butterfly valves are often favored for on-off operation and large-scale flow applications.

Q: How to dismantle a globe valve?

A: Maintenance Dismantling and Servicing Instructions for Globe Valves: Loosen the eyebolts/nuts; remove the body bonnet joint stud/nuts. Lift the bonnet assembly from body. Remove tack weld locking of spindle nut to disc and take out the disc from spindle assembly.

As one of the leading globe valve manufacturers and suppliers in China, we warmly welcome you to buy high quality globe valve made in China here from our factory. For customized service, contact us now.

Y Type Globe Valve, globe valve isolation type, Normal Globe Valve
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