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Your Professional Stop Valve Supplier

 

 

Our goal is to become your true partner in the field of air release valve in China. Zhejiang Yuanlun Valve Co., Ltd. has become a professional manufacturer of HVAC valves integrating design and development, production and processing, and sales and trade, as well as a modern enterprise with scientific management. We have a skilled engineering team dedicated to refining every stage, from product development and process improvement to production oversight, ensuring every product delivered meets rigorous quality and performance standards. The price is competitive and the product is quality-assured, which is a good choice for your long-term cooperation.

 

 
 
Why Choose Us
 

Our certificates: Our company has successively obtained ISO9001 quality management system certification, ISO14001 environmental management certification, occupational health and safety management certification, national authority-quality inspection qualified product certification, multiple utility model patents, design patents, EU CE certification and other certificates.

 

Production market: Our company actively expands domestic and foreign markets, and its products are exported to Europe, America, the Middle East and other regions, winning wide recognition from domestic and foreign customers.

 

Production equipment: Our company's production equipment includes special machine tools for gate valve sealing surfaces, five-station turntable special, large CNC lathes, four-station turntable special machines, three-station turntable special machines, center hole processing machines, eight-station rotary table machine tools, etc.

 

Our services: In the pre-sales stage, our team of experts will recommend the most suitable products according to the needs of customers and provide detailed technical consultation. During the sales period, we ensure timely delivery and provide installation guidance. For after-sales, we provide long-term technical support, warranty services and spare parts to help customers maximize the use of products and get reliable maintenance during use.

 

 
Advantages of Stop Valve
 
01/

Excellent sealing performance: The bellows seal design offers superior leakage prevention, making it particularly suitable for handling toxic or hazardous media.

02/

Reduced pressure loss: The y-shaped channel design minimizes pressure loss as the fluid passes through the valve, improving the overall efficiency of the system.

03/

High durability: The use of high-quality materials and precision manufacturing processes ensures a long service life and stability of the valve.

04/

Easy maintenance: With a relatively simple structure, the valve is easy to install and repair.

 

Specification of Stop Valve

 

 

Product name

Stop valve

Operating pressure

Up to 30 PSI (2.1 BAR)

Recommended operating pressure

10 to 30 PSI (.7 to 2.1 BAR)

Flow rates

Up to 25 GPH (95 L/H) 1/4" barb (model 16-007) fits micro tubing or micro line with .150" to .170" ID 10/32" thread (model 16-028) fits micro tubing or micro line with .160" to .170" ID

 

Types of Stop Valve
1

Gate valves

Also known as full-flow, on/off or isolation valves, they’ve been around for quite a long time. Their popularity can be credited to their simple design, which significantly reduces manufacturing costs.

2

Ball valves

Ball valves are different from other valves in that they use a ball instead of a gate to control liquid flow. Due to this unique aspect, a ball valve can serve as an on/off valve and at the same time can be used to regulate the fluid flow. Therefore, they’re more common in the industrial sector than gate valves.

3

Butterfly valves

Butterfly valves are also categorized under isolation valves. They derive their name from their wing-like movement when in action. In recent years, there has been a massive demand for these types of shutoff valves, especially in the oil, gas, and automation industries.

4

Globe valves

Globe valves offer excellent functionality for applications where frequent operation is required or throttling of the flow is desired. The elongated flow path tends to allow a dampening effect, which is much different than the simple on/off operation of gate and ball valves.

 

Features of Stop Valve

 

 

The brass German-style Y-pattern globe valve adopts a Y-shaped channel design, which allows for smoother fluid flow through the valve, reducing pressure loss and noise. Its sealing element employs a bellows design, positioned between the valve stem and the valve body, providing a reliable sealing method that effectively prevents medium leakage. Additionally, it can accommodate thermal expansion and contraction, enhancing the valve's reliability and service life.

 

Brass Forged Stop Valve

 

Application of Stop Valve

Stop valves are used for shutdown and regulation of wastewater treatment plants, power plants and process plants. They are used in steam pipes, coolant circuits, lubrication systems, etc., in which controlling the amount of fluid passing through valves plays an important role.

 

The material selection of the globe valve body is usually cast iron or brass / bronze in low pressure applications, and forged carbon steel or stainless steel in high pressure and temperature. The specified material of the valve body usually includes all pressure parts, and “trim” refers to parts other than the valve body, including the valve seat, disc and stem. The larger size is determined by the ASME class pressure class, and standard bolts or welding flanges are ordered. Sizing globe valves takes more effort than sizing some other types of valves because the pressure drop across the valve can be a problem.

 

Components of a Stop Valve
 
 
 

Valve cone or disk

This part controls the flow by moving up or down to open or close the valve.

 
 

Spindle

Connects the handle to the valve cone, enabling manual operation.

 
 

Packing gland

Ensures a tight seal around the spindle, preventing leaks.

 
 

Body

The outer casing that houses all internal components and connects to the pipeline.

 

 

Packing and Shipping of Stop Valve

 

 

Packing

Wooden box

Shipping

Shipped by road, sea, rail

 

FAQ

 

Q: Is a stop valve the same as a gate valve?

A: No, stop valves offer precise control, while gate valves are mainly for fully open or closed applications.

Q: What is the function of the main stop valve?

A: It isolates the main water supply, allowing homeowners or technicians to shut off water during emergencies or repairs.

Q: How to use a stop valve?

A: Turn the handle clockwise to close or counterclockwise to open. For finer adjustments, open partially to regulate flow.

Q: Should a stop valve be fully open?

A: Not always. While it can operate fully open, it can also be used to throttle or regulate flow as needed.

Q: What is the working principle of a stop valve?

A: It controls flow by moving a cone or disk in and out of the fluid’s path, creating a seal when closed.

Q: How do I know if my stop valve is open or closed?

A: The handle’s position is a clear indicator—parallel to the pipe for open, perpendicular for closed.

We're professional stop valve manufacturers and suppliers in China, specialized in providing high quality customized service. We warmly welcome you to wholesale stop valve for sale here from our factory. Contact us for free sample.

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