China Valve Manufacturers Suppliers Factory - Custom Valve

Why Choose Us

Strict Quality Control

We implement a multi-level quality management system, meticulously overseeing every step from raw material procurement to the production process, ensuring that every piece of equipment meets the highest standards.

Global Sales

Our products are highly popular and are sold to many countries and regions worldwide. We also provide one-stop equipment solutions, which do not require on-site construction and reduce time costs.

Get Discount on Bulk Orders

We also provide further discounts for large quantity orders. In the event that you cannot find the cryogenic equipment you need on our website, we are more than happy to source promotional pricing through our sister companies to ensure that your needs are met.

Custom Services

Our products are highly flexible and can be custom-made to meet specific customer requirements. This allows us to continuously update and expand our product line, ensuring we can meet a wide range of needs and provide tailored solutions for our clients.

Types of Valve

Micro-opening Safety Valve

Micro-opening safety valve finds its application in the safety discharge system of cryogenic liquid storage and transportation equipment.

Cryogenic Safety Valve

Safety Relief Valves are devices primarily designed for low-temperature applications. The manufacturing materials for Safety Relief Valves include stainless steel, brass, and bronze.

Cryogenic Globe Valve

Embrace the Cryogenic Globe Valve and elevate your cryogenic applications to unparalleled levels of precision, efficiency, and safety.

CNG High Pressure Safety Valve

A CNG High Pressure Safety Valve is a critical component in CNG systems to maintain safe pressure levels and protect equipment and personnel from potential hazards due to excessive pressure buildup.

Pressure Relief Valve

Pressure relief valves are primarily employed in cryogenic equipment, pipelines, tanks, and tank cars, serving as the ultimate protection devices for pressure vessels.

Check Valve

Check valve, also known as check valve or check valve, its function is to ensure that the medium in the pipeline directional flow without backflow function.

Cryogenic Safety Valve Technical Parameters

Product Name	Cryogenic Safety Valve
Type	Safety Valves, Adjustable Relief Valves
Place of Origin	China
Model Number	DA22F-40P (20B1)
Application	General
Temperature of Media	Cryogenic Temperature
Power	Hydraulic
Media	Gas
Structure	Safety
PN (Nominal Pressure)	4.0 MPa (580 psi)
Design Temperature	-196°C to +80°C (-320°F to +176°F)
Media	LNG, LN2, LO2, LAr, CO2
Body Material	CF8
Spring Material	S30210
Main Sealing Material	PTFE+C
Net Weight	0.8 kg

The Series of Cryogenic Safety Valve

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Advantages of Cryogenic Safety Valve

Reliable Pressure Relief

Cryogenic safety valves provide a reliable means of relieving excess pressure in a system, preventing potential catastrophic failures due to overpressure.

Adjustability

Many cryogenic safety valves allow for the adjustment of the set pressure, providing flexibility to meet the specific pressure relief requirements of different systems.

Reliable Performance in Extreme Conditions

These valves are engineered to perform effectively at cryogenic temperatures, making them ideal for use in industries handling liquefied gases like LNG (Liquefied Natural Gas) and liquid nitrogen.

Durability

Made from materials that can withstand extreme temperatures and pressures, cryogenic safety valves are durable and long-lasting, ensuring consistent and reliable service over time.

Application of Cryogenic Safety Valve

Oil And Gas Industry: In the oil and gas industry, cryogenic safety valves serve in the control of liquefaction gasses such as liquid nitrogen, methane, and helium.

Chemical And Petrochemical Industry: In the chemical processing industry, several products, including liquid oxygen, ethylene, and liquid nitrogen, require handling at very low temperatures. Cryogenic safety valves are the ideal option for this use.

Air Separation: Several pressure techniques are used to separate the various gases in the air. These plants make excellent use of cryogenic safety valves.

Food And Beverage Industry: Cryogenic safety valves are widely used in factories that produce processed food and drinks. Using cryogenic pipes and valves, these things are moved into and out of freezers.

Health Industry: Cryogenic safety valve applications are constantly growing and are even used in the medical sector—both storage areas where medical equipment is kept and pipelines that transfer gases like oxygen contain them.

Our Cryogenic Safety Valve Inspection Report

We will issue an inspection report like this before all orders ship. The basic inspection steps include a visual examination, dimension check, witnessing test, painting check, packaging check, then issuing the finished test report. We can also carry out special tests according to customer requirements.

Pressure Relief Valve Technical Parameters

Nominal Pressure	4.0 Megapascals (MPa)
Design Temperature Range	-196°C to +60°C
Suitable Media	LNG (Liquefied Natural Gas), LO2 (Liquid Oxygen), LN2 (Liquid Nitrogen), LAr (Liquid Argon)
Body Material	HPb59-1
Spring Material	S30210
Main Sealing Material	PCTFE

Benefits of Pressure Relief Valve

Enhances safety

Pressure relief valves were invented as a result of boilers exploding when they were not properly monitored. Thus, they are an easy and effective way to keep your system safe.

Increases efficiency

Pressure relief valves automatically reclose when the pressure lowers to the set level, preventing excess loss of expensive gases from the system.

Protects system components

By regulating the pressure in your system, pressure relief valves protect downstream components from damage that might otherwise result from pressure pulses.

Reliability

Pressure relief valves are designed and tested to provide reliable and consistent performance over various operating conditions.

Cost-Effective

Pressure relief valves can prevent costly damage or downtime from overpressure situations, leading to cost savings and increased efficiency.

Versatility

Pressure relief valves are available in a wide range of sizes, designs, and materials, making them suitable for use in a variety of applications and industries.

Application of Pressure Relief Valve

HVAC Systems: Pressure relief valves are critical components in HVAC (Heating, Ventilation, and Air Conditioning) systems. They help regulate and control the pressure within HVAC equipment such as chillers, boilers, and piping systems.

Steam Boilers: Pressure relief valves are crucial in steam boiler systems to prevent excessive pressure buildup that can lead to explosions or equipment failure.

Fuel Tanks: Pressure relief valves are commonly used in fuel storage tanks to prevent tank rupture or damage caused by pressure fluctuations, ensuring the integrity and safety of the fuel storage system.

Piping Systems: PRVs are installed in piping systems to safeguard against pressure surges or blockages.

Hydraulic Systems: Pressure relief valves ensure the safe and controlled operation of hydraulic cylinders, pumps, and other components by releasing excessive fluid pressure.

Compressed Air Systems: PRVs are used in compressed air systems to prevent the buildup of excessive pressure that can lead to damaged equipment or leaks.

Chemical Processing: PRVs are essential in chemical processing plants to protect vessels, reactors, and pipelines from overpressure situations caused by chemical reactions or process upsets.

Refining Industry: Pressure relief valves are commonly used in refining operations to protect equipment such as distillation columns, heat exchangers, and storage tanks.

Water Supply Systems: PRVs are used in water supply systems to regulate and maintain optimal water pressure, protect pipes and fixtures from damage due to excessive pressure, and help prevent bursts or leaks.

Refrigeration Systems: Pressure relief valves are used to protect against overpressure situations that can occur due to factors such as temperature fluctuations or system malfunctions.

Pressure Relief Valve Installation Requirements

Pressure relief valves need to be mounted in an upright, vertical position.

Take care not to over tighten the valve as this could cause damage or leakage.

When fitting flanged relief valves, make sure the bolts are drawn down evenly.

Ensure the inlet piping does not have a smaller diameter than the valve as this could constrict the flow.

Ensure the outlet piping is larger than the size of the valve outlet to ensure flow is not restricted.

Support the outlet piping to prevent warping and leakage and ensure no excess strain will be placed on the piping in the event of thermal expansion.

How to Place an Order

You can place your order directly by phone at +86 181 5720 5136 or contact us by email at contact@zoiun.com.

Our technicians will quote according to your needs.

After everything is confirmed, we will sign a contract with you to confirm your approval of the product requirements and quality and your payment of the deposit.

After confirming and receiving the 30% advance payment, we will start mass production.

Our technicians will control the quality during the production process.

According to the delivery time, we will arrange shipment after receiving the remaining payment.

FAQ

Q: What is the lead time?

A: Your order will be processed right after the deposit is received in our bank. Equipment production normally takes 10-20 days depending on available inventory. If you have an urgent order, please contact us at +86 181 5720 5136. We will gather all the resources and check the possibility of fast production to provide clear feedback.

Q: How is the packaging like?

A: The wooden crates are used for transportation, which act as protective packaging during transportation, especially when products from multiple manufacturers are consolidated into one container for LCL transportation. This method can maximize their integrity.

Q: What are the payment terms?

A: 30% deposit in advance, 70% balance against the copy of B/L. T/T, Trade Assurance, Paypal, Western Union, Credit Card, L/C etc.

Q: What if I need to revise the product design or specification?

A: If you need to revise the product design or specification of cryogenic equipment, please let us know as soon as possible. We will work with you to understand the changes you require and provide a new design or specification that meets the need. Please keep in mind that depending on the extent of the revisions may impact the delivery timeline or pricing of the product.

Q: What if I wanna cancel the order?

A: If you need to cancel an order, please inform us as soon as possible. It's important to note that our production process begins immediately after we receive the deposit in our bank account. We have a buffer period of 1 or 2 days for returning the payment, which normally takes 1 or 2 days to get into our bank account. However, once the production has started, cancellation may not be possible and may result in cancellation fees or forfeiture of the deposit.
We understand that unexpected circumstances may arise, and we will work with you to find the best solution. If you need to cancel your order, please contact us as soon as possible and provide the reason for cancellation. We will do our best to accommodate your needs while minimizing any impact on production timelines or costs.

Q: What causes a pressure relief valve to open?

A: Pressure acts against the valve seat and the force generated by this action opens the valve against spring tension. Turning the control knob can increase or decrease the tension in the spring, therefore adjusting the amount of pressure needed to open the valve.

Q: What is the difference between a pressure relief valve and a pressure reducing valve?

A: In order to identify and explain the key differences between a pressure relief valve and a pressure reducing valve, how it works must first be understood. Pressure reducing valves simply use spring pressure against a diaphragm to open the valve. The outlet pressure rises and begins to approach the set level.
Therefore, a pressure relief valve will release extra pressure from the tank or system. Conversely, a pressure reducing valve will diminish the pressure in a pneumatic or hydraulic circuit. Reducing valves are planned to look for even the smallest pressure rises in fluid lines, and they do not permit pressure to increase beyond pre-set limits.

Q: How does a pressure relief valve work?

A: PRVs are used to safeguard compressed air systems against over-pressurisation. They achieve this through the release of surplus pressure. The force generated by pressure acting against the seat of the valve opens it through spring tension. The manual action of rotating the control handle provides the ability to increase or decrease levels of tension within the spring. In turn, this adjusts the amount of pressure needed for the valve to open.

We're well-known as one of the leading valve manufacturers and suppliers in China. Please rest assured to buy cheap valve from our factory. All custom made products are with high quality and competitive price.

Safety Valve, Emergency Shut-off Valve, Check Valve

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