德國洛克進(jìn)口低溫止回閥的工作原理與使用方法 

一、進(jìn)口低溫止回閥技術(shù)優(yōu)點：

最低溫度使用;

具有良好的耐蝕性;

沖擊韌性、相對延伸率及組織穩(wěn)定性;

采用焊接連接時還需考慮材料的焊接性能;

金屬材料在低溫下保持工作條件所需要的力學(xué)性能;

在低溫及無油潤滑的情況下，具有良好的耐摩性;

Minimum temperature use;

Good corrosion resistance;

Impact toughness, relative elongation and tissue stability;

When welding connection is adopted, the welding performance of materials shall also be considered;

Mechanical properties of metal materials required to maintain working conditions at low temperature;

Under the condition of low temperature and oil-free lubrication, it has good friction resistance;

二、進(jìn)口低溫止回閥描述：

德國LOCKE洛克進(jìn)口低溫止回閥是指用于低溫液體（主要包括液氧、液氮、液氬、液態(tài)烴和液化天然氣等）貯運設(shè)備的管理系統(tǒng)中防止低溫介質(zhì)倒流的閥門。主要應(yīng)用于氣體液化設(shè)備、空分設(shè)備；天然氣液化、儲運設(shè)備；液態(tài)氧、氮、氬、氫、二氧化碳低溫貯槽及槽車；變壓吸附制氧、氮設(shè)備。廣泛應(yīng)用于能源、石化、冶金、航天、核工業(yè)、鐵道等行業(yè)等行業(yè)。

The imported low temperature check valve of Locke lock in Germany refers to the valve used in the management system of low temperature liquid (mainly including liquid oxygen, liquid nitrogen, liquid argon, liquid hydrocarbon and liquefied natural gas) storage and transportation equipment to prevent the backflow of low temperature medium. It is mainly used in gas liquefaction equipment, air separation equipment, natural gas liquefaction, storage and transportation equipment, liquid oxygen, nitrogen, argon, hydrogen, carbon dioxide low temperature storage tank and tank car, PSA oxygen and nitrogen production equipment. Widely used in energy, petrochemical, metallurgy, aerospace, nuclear industry, railway and other industries.

三、進(jìn)口低溫止回閥技術(shù)參數(shù)：

1、公稱通徑：DN 10~150mm

2、公稱壓力：PN 4.0MPa

3、適用溫度：-196℃-+80℃

4、閥體：不銹鋼

5、閥瓣、閥蓋：銅

6、連接方式：內(nèi)螺紋，外螺紋，焊接，法蘭

7、適用介質(zhì)：液氧、液氮、液氬、液態(tài)烴和液化天然氣，LO2、LN2、LAR、LNG等

8、應(yīng)用場合：氣體液化設(shè)備、空分設(shè)備；天然氣液化、儲運設(shè)備；液態(tài)氧、氮、氬、氫、二氧化碳低溫貯槽及槽車；變壓吸附制氧、氮設(shè)備。

1. Nominal diameter: DN 10 ~ 150 mm

2. Nominal pressure: PN 4.0Mpa

3. Applicable temperature: - 196 ℃ - + 80 ℃

4. Valve body: stainless steel

5. Disc and bonnet: Copper

6. Connection mode: internal thread, external thread, welding, flange

7. Applicable media: liquid oxygen, liquid nitrogen, liquid argon, liquid hydrocarbon and liquefied natural gas, LO2, LN2, LAR, LNG, etc

8. Application: gas liquefaction equipment, air separation equipment; natural gas liquefaction, storage and transportation equipment; low temperature storage tanks and tankers for liquid oxygen, nitrogen, argon, hydrogen and carbon dioxide; PSA oxygen and nitrogen production equipment.