Imported low temperature control valve
Overview of imported cryogenic control valve products
Imported low temperature control valve is a kind of control valve used in low temperature and deep cold occasions. It adopts long-neck valve cover for heat preservation and is equipped with multiple spring actuators, which has the advantages of compact structure, light weight and good stability. The valve body adopts precision casting angular structure, and the material is aluminum alloy, which has good low temperature resistance. The bellows seal ensures that the regulating valve does not leak in low temperature situations. Therefore, it is widely used in low temperature and cryogenic applications such as metallurgy, air separation, oxygen production, petroleum, and chemical industries. Especially used to control the process parameters of low-temperature gases and fluids (such as liquid oxygen, liquid argon, etc.) to maintain a given value.
The imported low-temperature control valve consists of a pneumatic membrane actuator and a low-temperature resistant single and double seat valve. It uses an elongated upper valve cover, so although the temperature in the valve body is very low, the packing at the upper end is still working at room temperature. This product is suitable for adjusting the medium under the low temperature state of -60~-250℃ (such as liquid oxygen, Liquid nitrogen, etc.). To ensure the accuracy of adjustment, a valve positioner must be used.
Working principle of imported cryogenic control valve
The imported cryogenic control valve is a valve that uses compressed air as the power, and the area of the fluid passage is adjusted by the signal of the controller to change the fluid flow. Pneumatic control valves generally use pneumatic membrane actuators, so they are also called pneumatic control valves. Pneumatic control valve has the advantages of simple control, rapid response, low cost, and no need to take explosion-proof measures compared with electric control valve, so it has a wide range of applications. Far East Controls has continuously improved the shortcomings of conventional pneumatic diaphragm actuators, such as bulky and poor reaction reliability. At the same time, it has developed pneumatic actuators, which greatly improves product performance and can meet the different needs of mid- to high-end customers.
The imported cryogenic control valve is a valve used to adjust the outlet pressure of cryogenic liquid (liquid oxygen, liquid nitrogen, liquid argon, liquefied natural gas, LO2, LN2, LAR, LNG, etc.) on the cryogenic storage tank.
The imported low-temperature pressure regulating valve undergoes special low-temperature treatment, and the rough-machined parts are placed in the cooling medium for several hours (2-6 hours) to relieve stress, ensure the low-temperature performance of the material, and ensure the finished size to prevent the valve from being at low temperature Under working conditions, leakage caused by deformation caused by temperature changes. The assembly of the valve is also different from ordinary valves. The parts need to be strictly cleaned to remove any oil stains to ensure the performance
Features of imported cryogenic control valve:
Simple flow path, low resistance, large valve body capacity
Double guide, good valve stability
Large adjustable range, inherent adjustable ratio 50
The bellows seal completely seals the moving valve stem and prevents fluid leakage
Use floating sleeve connection, easy to install
Floating sleeve installation type
The warm jacket is used for occasions where the fluid is easy to crystallize and solidify after cooling.
Imported low temperature control valve parts materials:
Valve body: LF4
Stem: 1Cr18Ni9
Bonnet: 1Cr18Ni9 wave
Corrugated tube: 1Cr18Ni9
Spool and seat: 1Cr18Ni9
Gasket: copper, 1Cr18Ni9

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Product Standards
Products are designed, manufactured, and inspected strictly in accordance with China\'s GB, HG standards, and US API standards. The hardness of the sealing surface meets the national requirements and the width exceeds the national standard.
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Order process
Landline: 021-59718851 (AM-8: 30 to PM-17: 30)
Mobile phone: 18918462396 (WeChat same number 24-hour service)

QQ: 2030185432

Email: kunage@126.com
Receive customer purchase list, provide customers with valve model selection and quotation (price list).
Specific agreement: delivery time, special requirements, etc.
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Customers have special requirements for products, and must provide the following instructions in the order contract:
(1) Structure length;
(2) Connection form;
(3) Nominal diameter, full diameter, reduced diameter, pipe size;
(4) Operating medium, temperature and pressure range;
(5) Experiment, inspection standards and other requirements;
(6) Various driving devices can be configured in this field according to the special requirements of customers;
If the determined valve type and model are provided by the customer, the customer should correctly explain the meaning and requirements of its model, and sign the contract under the conditions that the supply and demand sides understand and agree.

Contact: Peng gong
Q Q: 2030185432
Mobile: 18918462396(WeChat same number - 24 hours service)
Landline: 021-59718851
E-mail :kunage@126.com