Air Separation Unit (ASU) is mainly used to separate air and produce industrial gases such as oxygen and nitrogen. The cold box is a key component in ASU, which contains equipment and pipelines that operate at ultra-low temperatures. The cold box valve is the core control component inside the cold box, responsible for controlling the fluid flow at low temperatures. Its design must meet three basic requirements: low temperature resistance, reliable sealing, and easy maintenance. The performance of the cold box valve will directly affect the safety and energy efficiency of the entire system.

Recently, Star Controls successfully won an order for the cold box valve of the air separation unit. After a year of tracking, the SC sales engineer fully understands the customer's project requirements: there are specific requirements for the extension length and floating sleeve of the valve. In response to this request, the GULDE technical team responded positively and provided customers with cost-effective product solutions, ultimately winning the order.

Emerson GULDE has launched the GULDE 5450 low-temperature control valve designed and produced specifically for low-temperature conditions, which is particularly suitable for controlling, regulating, and shutting down various media such as oxygen, nitrogen, argon, liquid oxygen, and liquid nitrogen in the air separation equipment industry. It combines safety, reliability, and accuracy to ensure safe, efficient, and smooth operation of the equipment.

Characteristics of GULDE 5450 Low Temperature Control Valve:
1.    Medium temperature can be as low as -196℃
2.    Easy to maintain valve body top installation, capable of online maintenance
3.    Welding combination of valve body without leakage
4.    Valve stem liquid phase sealing structure with effective temperature control
5.    Circular chamfer seal with higher sealing performance
6.    Flexible installation angle, can be installed at a horizontal line of 15-90 degrees
7.    Multiple packing structures to choose from

Its main technical parameters:
1.    Nominal diameter: NPS 1, 1 1/2, 2, 3, 4
2.    End connections: RF flange, BWE, SWE
3.    Nominal pressure: CL150/CL300/CL600
4.    Leakage level: Metal seal IV, V; Soft seal IV, V, VI
5.    Traffic characteristics: linear, equal percentage
6.    Temperature range: -196℃~73℃
7.    Valve body and bonnet material: stainless steel
8.    Packing type: standard PTFE packing/graphite packing; Environmentally friendly PTFE/graphite packing

GULDE 5450 low-temperature control valve, with its excellent low-temperature performance, high sealing level, and convenient maintenance design, has become an ideal choice for industries such as air separation, cold box, LNG loading and unloading. It can not only meet the technical requirements under sever conditions, but also bring significant economic benefits to users (such as reducing maintenance costs and improving system energy efficiency). For users who pursue high reliability and low operating costs, GULDE 5450 is a satisfactory choice for low-temperature conditions. In addition, GULDE factory has an experienced design and development team that can provide customized products according to specific customer needs.

Welcome to contact SC to learn more about GULDE product information.