Stainless steel low-temperature gate valveDZ41W

Valves suitable for medium temperatures ranging from -40 ℃ to -196 ℃ are called low-temperature valves

Low temperature valves include low-temperature ball valvesLow temperature gate valveLow temperature globe valve, low temperature safety valve, low temperature check valve, low temperature butterfly valve, low temperature needle valve, low temperature throttle valve, low temperature pressure reducing valve, etc., mainly used in ethylene, liquefied natural gas plants, natural gas LPG LNG storage tanks, receiving bases and satellite stations, air separation equipment, petrochemical tail gas separation equipment, low temperature storage tanks and tank cars for liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide, pressure swing adsorption oxygen production and other devices. The output liquid low-temperature media such as ethylene, liquid oxygen, liquid hydrogen, liquefied natural gas, liquefied petroleum products, etc. are not only flammable and explosive, but also require gasification when heated, and the volume expands hundreds of times during gasification.

The material of liquefied natural gas valves is very important. If the material is not qualified, it will cause external or internal leakage of the shell and sealing surface; The comprehensive mechanical properties, strength, and rigidity of the components cannot meet the requirements for use and may even fracture. Causing explosion due to leakage of liquefied natural gas medium. Therefore, in the process of developing, designing, and researching liquefied natural gas valves, material is the primary and key issue. After years of manufacturing, we have accumulated rich experience in design, process, and manufacturing, and have developed a series of low-temperature valve products.

Product Introduction

The low-temperature gate valve produced can be driven manually, worm gear, pneumatic, or electric. The connection method can be threaded, flanged, or welded. The structural form can be straight through, and the sealing structure can be soft or hard sealed. The pressure range is PN0.1-10Mpa, and the nominal diameter is DN20-400mm. The material can be low-temperature steel, cast steel, brass, or stainless steel. Due to the wide range of valve applications, the same type of valve can have different combinations in different situations and working conditions. If you are a non professional, please feel free to call our company for consultation. Our company has professional technical personnel to serve you!

Application of low-temperature gate valve:
Low temperature gate valves are suitable for low-temperature media such as methane, liquid natural gas, hexene, carbon dioxide, liquid ammonia, liquid oxygen, liquid nitrogen, liquid hydrogen, etc

Characteristics of low-temperature gate valve:
1. To prevent abnormal pressure rise in the middle chamber, a pressure relief hole is installed on the inlet side of the gate.
2. Determine the top length of the valve cover based on the operating temperature of the valve to ensure reliable sealing of the valve stem packing.
3. Reasonably select materials for components such as fillers and gaskets based on the working temperature.
4. Strictly control the chemical composition and mechanical performance indicators such as low-temperature impact toughness of materials.
5. Adopting various piping flange standards and sealing surface types, suitable for various engineering needs.

Performance parameters of low-temperature gate valve:

Main appearance and connection dimensions of low-temperature gate valve:

Quanli Ordering Notice: (National Standard)
1、 A: Product name, model, nominal diameter B: Medium and temperature, pressure range C: Are there any accessories, delivery time, special requirements, etc. for us to correctly select for you.
2、 If the valve model of our company has already been selected by the design unit, please place an order directly with our sales center based on the valve parameters.
3、 When the situation you are using is very important or the environment is complex, please provide design drawings and detailed parameters, and our engineers and experts will focus on reviewing and analyzing for you. We can provide you with professional solutions, including design, customization, complete sets, operation, and service. We have always been committed to being a leader in the valve industry, providing you with the latest valve knowledge, the best service, and the best technical consultants. Thank you for visiting our website【www.quanlivalve.com】If you have any questions, you can call us and we will do our best to provide you with high-quality service. Our factory specializes in providingball valve、butterfly valve、gate valve、globe valve、check valve、pressure reducing valve、safety valve、Marine valves、Oilfield valves、Water control valveWaiting for various types of valves.