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進口低溫微啟式安全閥德國洛克質量優異 價格美麗 

一、進口低溫微啟式安全閥選型：

1、根據低溫安全閥操作壓力選擇合適公稱壓力；

2、根據低溫安全閥操作溫度選擇合適使用溫度范圍；

3、根據計算出的低溫安全閥的定壓值決定彈簧或杠桿的定壓范圍；

4、根據使用介質選擇合適低溫安全閥的材質和結構型式；

5、根據低溫安全閥泄放量選擇合適的喉徑。

1. Select the appropriate nominal pressure according to the operating pressure of low temperature safety valve;

2. According to the operating temperature of low temperature safety valve, select the appropriate temperature range;

3. According to the calculated constant pressure value of low temperature safety valve, the constant pressure range of spring or lever is determined;

4. The material and structure of low temperature safety valve should be selected according to the medium used;

5. The appropriate throat diameter should be selected according to the discharge capacity of cryogenic safety valve.

二、進口低溫微啟式安全閥結構特點：

1、低溫安全閥經過低溫深冷處理，能耐-196℃低溫

2、低溫安全閥閥瓣材料經過鍍鉻或氮化處理，提高閥桿表面硬度，提高填料密封的可靠性。

3、低溫安全閥用的墊片具有在常溫下、低溫狀態及溫度變化下能可靠密封性和復原性。

4、低溫安全閥采用優質的德國洛克彈簧材料，起跳排放精確安全。

5、啟動自如、密封可靠、起跳壓力穩定等

6、開啟高度≥1/4喉部直徑，排放量大；

7、帶扳手的安全閥，當介質壓力達到開啟壓力的75%以上時，能利用扳手手動開啟；

8、有螺紋，法蘭，焊接，多種連接方式，帶焊接管可拆卸安裝維修方便。

1. After cryogenic treatment, the low temperature safety valve can withstand - 196 ℃

2. After chromium plating or nitriding treatment, the surface hardness of valve stem and the reliability of packing seal are improved.

3. The gasket for low temperature safety valve has reliable sealing and recovery under normal temperature, low temperature state and temperature change.

4. The low temperature safety valve is made of high-quality German rock spring material, which is precise and safe for taking off and discharging.

5. It is easy to start, reliable in sealing and stable in take-off pressure

6. When the opening height is more than 1 / 4 of throat diameter, the discharge is large;

7. When the medium pressure reaches 75% of the opening pressure, the safety valve with wrench can be opened manually;

8. There are thread, flange, welding, a variety of connection, with welded pipe can be disassembled, installed and maintained conveniently.

三、進口低溫微啟式安全閥規格參數：

1、公稱通徑：DN6～200mm

2、公稱壓力：PN1.6MPa～6.4Mpa

3、連接方式：內螺紋，外螺紋，焊接，法蘭

4、結構形式：全啟式，微啟式，先導式

5、適用溫度：-196℃～+80℃

6、閥體、閥座：不銹鋼

7、閥頂、閥桿、彈簧：不銹鋼

8、適用介質：LNG液化天然氣，LOX或LO2等

9、操作方式：自動 設計特色不銹鋼成形波紋管設計，保證介質零外漏

10、平衡安全閥出口的背壓，保證整定壓力的準確性

11、整定壓力偏差小，可達±3%；

12、啟閉壓差≤15%；

13、選用優質的彈簧鋼，保證彈簧的壽命和穩定性；

14、平面結構的閥瓣和閥座易于維修和重新加工；

15、整定壓力范圍大:0.06～6.4MPa；（整定壓力根據客戶需求調節設定）

16、調節圈結構，回座壓力可調

17、應用場合：氣體液化設備、空分設備；天然氣液化、儲運設備；液態氧、氮、氬、氫、二氧化碳低溫貯槽及槽車；變壓吸附制氧、氮設備的低溫液體儲運設備的安全排放系統。

1. Nominal diameter: dn6-200 mm

2. Nominal pressure: PN1.6MPa ~ 6.4Mpa

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

4. Structure: full open, micro open, pilot type

5. Applicable temperature: - 196 ℃ ~ + 80 ℃

6. Valve body and valve seat: stainless steel

7. Valve top, stem and spring: stainless steel

8. Applicable media: LNG, LNG, LOX or LO2, etc

9. Operation mode: automatic design features stainless steel corrugated pipe design to ensure zero leakage of medium

10. Balance the back pressure at the outlet of safety valve to ensure the accuracy of setting pressure

11. The set pressure deviation is less than ± 3%;

12. Opening and closing pressure difference ≤ 15%;

13. Select high quality spring steel to ensure the service life and stability of spring;

14. The flat structure disc and seat are easy to repair and rework;

15. Wide range of setting pressure: 0.06 ~ 6.4Mpa; (the setting pressure can be adjusted according to customer requirements)

16. Adjustable ring structure, adjustable return pressure

17. Application: gas liquefaction equipment, air separation equipment; natural gas liquefaction, storage and transportation equipment; liquid oxygen, nitrogen, argon, hydrogen, carbon dioxide low temperature storage tanks and tank cars; PSA oxygen, nitrogen, nitrogen production equipment of low temperature liquid storage and transportation equipment safety discharge system.

四、進口低溫微啟式安全閥產品簡介：

德國洛克進口低溫微啟式安全閥是指用于液氧、液氮、液氬、液化天然氣等低溫液態介質系統上，啟閉件受外力作用下處于常閉狀態，當低溫設備或管道內的低溫液氧、液氮、液氬、液化天然氣介質壓力升高超過規定值時，通過向系統外排放液氧、液氮、液氬、液化天然氣來防止低溫管道或設備內介質壓力超過規定數值的閥門。控制低溫液氧、液氮、液氬、液化天然氣壓力不超過規定值，對人身安全和設備運行起重要保護作用。微啟式安全閥的開啟行程高度為：≤0.05d0（最小排放喉部口徑）

The low-temperature micro open safety valve imported from Germany is used in liquid oxygen, liquid nitrogen, liquid argon, liquefied natural gas and other low-temperature liquid medium systems. The opening and closing parts are normally closed under the action of external force. When the medium pressure of low-temperature liquid oxygen, liquid nitrogen, liquid argon and liquefied natural gas in low-temperature equipment or pipeline exceeds the specified value, it can discharge liquid oxygen, liquid nitrogen, liquid argon and liquid liquid outside the system The valve used to prevent the medium pressure in low temperature pipeline or equipment from exceeding the specified value. Controlling the pressure of low temperature liquid oxygen, liquid nitrogen, liquid argon and liquefied natural gas not exceeding the specified value plays an important role in protecting personal safety and equipment operation. The opening stroke height of micro lift safety valve is: ≤ 0.05d0 (minimum discharge throat diameter)