进口低温球阀产品概述：

德国《LOCKE》洛克--进口低温球阀(Low temperature valve)主要分为：低温长杆球阀、低温短轴球阀、低温焊接球阀、低温法兰球阀、低温螺纹球阀等。允许根据客户实际要求搭配不同阀轴长度、连接方式以及驱动方式等。密封性能好，在超低温工作时拥有优良的理化性能。广泛应用于LNG系统、低温液态气体储运、制冷系统等。

进口低温球阀产品特点：

1、采用了在阀芯上开设减压孔的构造。

2、垫片是使用了含有具有稳定密封性的陶瓷填充材料。

3、阀体轻、尺寸小。为了减少阀体的热损失，特别是为了保证阀门超低温下的使用，特意设计成重量轻、尺寸小的阀体。

4、长轴阀有低温流体流经的阀，采用长阀杆形式，可以避开外部热的作用使压盖保持常温，以防止盖密封件的性能降低。此长度是通过计算、试验而得出的较佳长度。

进口低温球阀工作原理：

低温球阀适用于的各种管路上，用于截断或接通管路中的介质，选用不同材质，可分别适用于不同的温度和介质，较低工作温度为-196℃。低温球阀的驱动方式为手动、蜗轮蜗杆传动、气动或电动。低温球阀一般采用法兰连接，也可采用焊接连接。

进口低温球阀性能范围：

尺寸规格 DN10-DN200

温度范围 -196℃-80℃

压力范围 PN15-PN100

阀体阀盖 特种低温钢

阀座阀芯 锻造低温钢、四氟

阀杆形式 短轴、加长杆

连接方式 德标/国标/美标、法兰、焊接、内螺纹

适用范围 已烯、液氧、液氮、液氢等低温介质

Introduction of imported low temperature ball valve products:

German Locke low temperature valve mainly includes: low temperature long rod ball valve, low temperature short shaft ball valve, low temperature welded ball valve, low temperature flange ball valve, low temperature threaded ball valve, etc. It is allowed to match different valve shaft length, connection mode and driving mode according to the actual requirements of customers. Good sealing performance, excellent physical and chemical properties at ultra-low temperature. It is widely used in LNG system, cryogenic liquid gas storage and transportation, refrigeration system, etc.

Features of imported low temperature ball valve:

1. The valve core is provided with a pressure reducing hole.

2. The gasket is filled with ceramic material with stable sealing property.

3. The valve body is light and small in size. In order to reduce the heat loss of the valve body, especially to ensure the use of the valve under ultra-low temperature, the valve body is specially designed with light weight and small size.

4. The valve with low temperature fluid flowing through the long shaft valve adopts the form of long stem, which can avoid the effect of external heat and keep the gland at normal temperature, so as to prevent the performance of the cover seal from reducing. This length is a better one obtained by calculation and test.

Working principle of imported low temperature ball valve:

Low temperature ball valve is suitable for all kinds of pipelines, used to cut off or connect the medium in the pipeline. Different materials can be used for different temperatures and media, and the lower working temperature is - 196 ℃. The driving mode of low temperature ball valve is manual, worm gear transmission, pneumatic or electric. Low temperature ball valve is generally connected by flange or welding.

Performance range of imported low temperature ball valve:

Dimensions and specifications DN10-DN200

temperature range - 196℃-80℃

Pressure range PN15-PN100

Valve body and cover Special low temperature steel

Valve seat core Forging low temperature steel, PTFE

Stem form Short shaft, extension rod

Connection mode German standard / national standard / American Standard, flange, welding, internal thread

Scope of application Low temperature medium such as liquid natural gas, hexene, carbon dioxide, liquid ammonia, liquid oxygen, liquid nitrogen, liquid hydrogen, etc