品牌進(jìn)口低溫LNG截止閥認(rèn)準(zhǔn)德國洛克  

一、進(jìn)口低溫LNG截止閥工作原理：

低溫截止閥的閥桿軸線與閥座密封面垂直。閥桿開啟或關(guān)閉行程相對較短，并具有非?？煽康那袛鄤幼?，使得這種閥門非常適合作為介質(zhì)的切斷或調(diào)節(jié)及節(jié)流使用。低溫截止閥一旦處于開啟狀態(tài)，它的閥座和閥瓣密封面之間就不再有接觸，因而它的密封面機(jī)械磨損較小，由于大部分截止閥的閥座和閥瓣比較容易修理或更換密封元件時無需把整個閥門從管線上拆下來，這對于閥門和管線焊接成一體的場合是很適用的。介質(zhì)通過此類閥門時的流動方向發(fā)生了變化，因此截止閥的流動阻力較高于其它閥門。

The valve stem axis of low temperature stop valve is perpendicular to the sealing surface of valve seat. The opening or closing stroke of the valve stem is relatively short, and has a very reliable cut-off action, which makes this valve very suitable for cutting off or regulating and throttling of medium. Once the Cryogenic Globe valve is in the open state, there will be no contact between the valve seat and the sealing surface of the valve disc, so the mechanical wear of the sealing surface is less. Because most of the valve seat and disc are easy to repair or replace the sealing elements, it is not necessary to remove the whole valve from the pipeline, which is very suitable for the occasion where the valve and the pipeline are welded together. When the medium passes through such valves, the flow direction changes, so the flow resistance of the stop valve is higher than that of other valves.

二、進(jìn)口低溫LNG截止閥產(chǎn)品特點：

1、在低溫介質(zhì)下具有長時間工作的能力;

2、直接與低溫介質(zhì)接觸的組合件具有防爆和防火結(jié)構(gòu);

3、在低溫工作的材料要保證其低溫性能,以防止摩擦件擦傷;

4、在低溫及無油潤滑的情況下，具有良好的耐摩性。

1. It can work for a long time in low temperature medium;

2. The assembly directly contacting with low temperature medium has explosion-proof and fireproof structure;

3. The material working at low temperature should ensure its low temperature performance to prevent abrasion of friction parts;

4. It has good friction resistance at low temperature and without oil lubrication.

三、進(jìn)口低溫LNG截止閥規(guī)格參數(shù)：

1、規(guī)格范圍：DN15-DN200

2、溫度范圍：-196℃～150℃

3、壓力范圍：PN1.6-PN10Mpa

4、閥體材質(zhì)：深冷低溫鋼

5、閥桿材質(zhì)：深冷低溫鋼

6、閥蓋材質(zhì)：深冷低溫鋼

7、閥座材質(zhì)：深冷低溫鋼

8、連接方式：法蘭/焊接/內(nèi)螺紋

9、適用范圍：液氨、液氧、液氮、液氬、二氧化碳及工業(yè)低溫液體。

1. Specification range: DN 15-dn200

2. Temperature range: - 196 ℃ ~ 150 ℃

3. Pressure range: pn1.6-pn10mpa

4. Valve body material: cryogenic low temperature steel

5. Valve stem material: cryogenic low temperature steel

6. Valve cover material: cryogenic low temperature steel

7. Valve seat material: Cryogenic Steel

8. Connection mode: flange / welding / internal thread

9. Scope of application: liquid ammonia, liquid oxygen, liquid nitrogen, liquid argon, carbon dioxide and industrial low temperature liquid.

四、進(jìn)口低溫LNG截止閥產(chǎn)品簡介： 

德國LOCKE洛克品牌-進(jìn)口低溫LNG截止閥生產(chǎn)過程經(jīng)過精密設(shè)計在制定了嚴(yán)格的制造工藝和采用專用設(shè)備,對零件的加工進(jìn)行嚴(yán)格的質(zhì)量控制。經(jīng)特殊的低溫處理，將粗加工的零件置于冷卻介質(zhì)中數(shù)小時（6-12小時），以釋放應(yīng)力，確保材料的低溫性能，保證精加工尺寸，以防閥門在低溫工況時，因溫度變化造成變形而導(dǎo)致的泄漏。閥門的裝配與普通閥門也不同，零件需經(jīng)過嚴(yán)格的清洗，除去任何油污以保證使用性能。進(jìn)口低溫截止閥適用于低溫液體貯運設(shè)備的管理系統(tǒng)，具有開關(guān)靈活、密封可靠的特點，也可用于其他低溫和深冷介質(zhì)的管理系統(tǒng)。

The production process of imported low temperature LNG stop valve of German locklock brand has been precisely designed. Strict manufacturing process and special equipment are adopted to strictly control the quality of parts processing. After special low temperature treatment, the rough machined parts are placed in the cooling medium for several hours (6-12 hours) to release stress, ensure the low-temperature performance of the material, and ensure the finishing size, so as to prevent the leakage caused by the deformation caused by the temperature change in the low-temperature working condition. Valve assembly and ordinary valve is also different, parts need to be strictly cleaned to remove any oil to ensure the performance. The imported low temperature stop valve is suitable for the management system of cryogenic liquid storage and transportation equipment. It has the characteristics of flexible switch and reliable sealing. It can also be used in the management system of other cryogenic and cryogenic media.