進口煤氣減壓閥德國洛克 物美價廉值得擁有 

一、進口煤氣減壓閥描述：

德國LOCKE洛克進口煤氣減壓閥主要用于氣體管路，如空氣、氮氣、氧氣、氫氣、煤氣、液化氣、天然氣等氣體。煤氣減壓閥屬于先導(dǎo)活塞式減壓閥。由主閥和導(dǎo)閥兩部分組成。主閥主要由閥座、主閥盤、活塞、彈簧等零件組成。導(dǎo)閥主要由閥座、閥瓣、膜片、彈簧、調(diào)節(jié)彈簧等零件組成。通過調(diào)節(jié)調(diào)節(jié)彈簧壓力設(shè)定出口壓力、利用膜片傳感出口壓力變化，通過導(dǎo)閥啟閉驅(qū)動活塞調(diào)節(jié)主閥節(jié)流部位過流面積的大小，實現(xiàn)減壓穩(wěn)壓功能。

Locke lock gas pressure reducing valve is mainly used in gas pipeline, such as air, nitrogen, oxygen, hydrogen, gas, liquefied gas, natural gas and other gases. The gas pressure reducing valve belongs to the pilot piston type pressure reducing valve. It is composed of main valve and pilot valve. The main valve is mainly composed of valve seat, main valve disc, piston, spring and other parts. The pilot valve is mainly composed of valve seat, disc, diaphragm, spring, regulating spring and other parts. Through adjusting and adjusting the spring pressure to set the outlet pressure, using the diaphragm to sense the outlet pressure change, and through the pilot valve to open and close the driving piston to adjust the size of the flow area of the throttle part of the main valve, the pressure reducing and stabilizing function is realized.

二、進口煤氣減壓閥安裝和維護應(yīng)注意以下事項：

1、為了操作和維護方便，該閥一般直立安裝在水平管道上。

2、安裝時應(yīng)注意使管路中介質(zhì)的流向與閥休上所示箭頭的方向一致。

3、為了防止閥后壓力超壓，應(yīng)在離閥出口不少于4M處安裝一個減壓閥。

1. For the convenience of operation and maintenance, the valve is generally installed vertically on the horizontal pipeline.

2. During installation, the flow direction of the medium in the pipeline shall be consistent with the direction of the arrow shown on the valve seat.

3. In order to prevent overpressure behind the valve, a pressure reducing valve shall be installed at least 4m away from the valve outlet.

三、進口煤氣減壓閥選型：

1、根據(jù)使用工況確定減壓閥的類型和調(diào)壓精度。

2、根據(jù)所需最大輸出流量選擇合適的通徑。

3、根據(jù)使用工況需要確定進口壓力和出口壓力。

4、根據(jù)使用介質(zhì)是否有腐蝕性、毒性等確定閥體材質(zhì)。

5、根據(jù)工況需求選擇合適的連接方式。

四、進口煤氣減壓閥技術(shù)參數(shù)：

公稱壓力（MPa）：      1.6 - 16.0Mpa

公稱通徑（DN） ：     DN15-500mm

殼化試驗壓力（MPa）：  2.4 3.75 6.0 9.6 15.0 24

密封試驗壓力（MPa）：  1.6 2.5 4.0 6.4 10.0 16.0

最高進口壓力（MPa）：  1.6 2.5 4.0 6.4 10.0 16.0

出口壓力范圍（MPa）：  1.0-1.0 0.1-1.6 0.1-2.5 0.5-3.5 0.5-35 0.5-45

壓力特性偏差（MPa）：  △P2P GB12246-1989

流量特性偏差（MPa）：  △P2G GB12246-1989

最小壓差（MPa）：      0.15 0.15 0.2 0.4 0.8 1.0

滲漏量：               GB12245-1989

進口煤氣減壓閥流量系數(shù)(Cv)：

DN：   15  20  25  32  40  50  65  80  100 125 150 200 250 300 350 400 500

Cv：   1   2.5 4   6.5 9   16  25  36  64  100 140 250 400 570 780 1020   1500

Nominal pressure (MPA): 1.6 - 16.0mpa

Nominal diameter (DN): dn15-500mm

Shell test pressure (MPA): 2.4 3.75 6.0 9.6 15.0 24

Sealing test pressure (MPA): 1.62.5 4.0 6.4 10.0 16.0

Maximum inlet pressure (MPA): 1.62.5 4.0 6.4 10.0 16.0

Outlet pressure range (MPA): 1.0-1.0 0.1-1.6 0.1-2.5 0.5-3.5 0.5-35 0.5-45

Pressure characteristic deviation (MPA): △ P2P gb12246-1989

Flow characteristic deviation (MPA): △ p2g gb12246-1989

Minimum pressure difference (MPA): 0.15 0.15 0.2 0.4 0.8 1.0

Leakage: gb12245-1989

Flow coefficient of inlet gas pressure reducing valve (CV):

DN： 15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 500

Cv： 1 2.5 4 6.5 9 16 25 36 64 100 140 250 400 570 780 1020 1500

五、進口煤氣減壓閥主要零件材料：

1、零件名稱       零件材料

2、閥體閥蓋底蓋    WCB

3、閥座閥盤         2Cr13

4、缸套         2Cr13/銅合金

5、活塞           合金鑄鐵

6、導(dǎo)閥座導(dǎo)閥桿  2Cr13

7、主閥彈簧      1Cr18Ni9Ti

8、導(dǎo)閥主彈簧     50CrVA

9、調(diào)節(jié)彈簧      60Si12Mn

1. Part name part material

2. Body bonnet bottom cover WCB

3. Seat disc 2Cr13

4. Cylinder sleeve 2Cr13 / copper alloy

5. Piston alloy cast iron

6. Guide valve seat guide valve stem 2Cr13

7. Main valve spring 1Cr18Ni9Ti

8. Main spring of pilot valve 50CrVA

9. Adjusting spring 60si12mn