進口減壓閥德國洛克現(xiàn)貨供應 

進口減壓閥安裝要求：

在安裝原裝進口減壓閥時，需要謹慎正規(guī)操作，具體安裝要求如下：

1、 原裝進口減壓閥安裝前，需對管道進行試壓、吹掃，保證管道的密封性與干凈清潔。

2、 原裝進口減壓閥應水平垂直安裝在管道上，另安裝時應注意使管路中介質的流向與閥體上所示箭頭的方向一致。

3、 原裝進口減壓閥兩側應安裝控制球閥，并安裝旁通管以備檢修。

4、 原裝進口減壓閥的高、低壓管道上都應設置壓力表，以便于調節(jié)，并可在運行中觀察閥前和閥后的壓力變化。

5、 管道上設置安全放散閥，以保證原裝進口減壓閥運行的可靠性和安全性。

6、 室內燃氣管道應在室內設置燃氣泄露報警器裝置，以保證燃氣泄露危險時，能及時報警并排除險情。

7、為了確保安全使用，在裝好原裝進口減壓閥后，一定要測密封性，可在所有管道接口處使用檢漏儀檢測或刷肥皂水、洗潔精水進行檢查，觀察有無漏氣。如在減壓閥前后安裝有壓力表的，可關閉氣源后，觀察指針是否有變化。

 

進口減壓閥規(guī)格參數(shù)：

1、公稱壓力：1.0MPa、1.6MPa、2.5MPa

2、殼體試驗壓力：P=1.5PN

3、密封試驗壓力：P=1.1PN

4、出口壓力： PN1.0MPa調節(jié)閥0.09~0.8MPa

PN1.6MPa調節(jié)閥0.10~1.2MPa

PN2.5MPa調節(jié)閥0.15~1.6MPa

進口減壓閥的選型： 

減壓閥進口壓力的波動應控制在進口壓力給定值的80％～105％，如超過該范圍，減壓閥的性能會受影響。

1. 通常減壓閥的閥后壓力P2應小于閥前壓力的0.5倍，即P2<0.5P1。

2. 減壓閥的每一檔彈簧只在一定的出口壓力范圍內適用，超出范圍應更換彈簧。

3. 在介質工作溫度比較高的場合，一般選用先導式活塞式減壓閥或先導式波紋管減壓閥。

4. 介質為空氣或水（液體）的場合，一般宜選用直接作用薄膜式減壓閥或先導式薄膜式減壓閥。

5. 介質為蒸汽的場合，宜選用先導活塞式減壓閥或先導波紋管式減壓閥。

6. 為了操作、調整和維修的方便，減壓閥一般應安裝在水平管道上。

根據(jù)使用要求選定減壓閥的類型和調壓精度，再根據(jù)所需*輸出流量選擇其通徑。決定閥的氣源壓力時，應使其大于*輸出壓力0．1MPa。減壓閥一般安裝在分水濾氣器之后，油霧器或定值器之前，并注意不要將其進、出口接反；閥不用時應把旋鈕放松，以免膜片經(jīng)常受壓變形而影響其性能。

Selection of inlet pressure reducing valve:
The fluctuation of the pressure at the inlet of the pressure reducing valve shall be controlled from 80% to 105% of the given value of the inlet pressure. If the range is exceeded, the performance of the pressure reducing valve will be affected.
1. generally, the pressure P2 behind the pressure reducing valve should be less than 0.5 times of the pressure in front of the valve, that is, P2 < 0.5p1.
2. each spring of pressure reducing valve is only applicable within a certain outlet pressure range, and the spring shall be replaced if it is out of range.
3. in the case of high medium working temperature, pilot piston type pressure reducing valve or pilot bellows pressure reducing valve is generally selected.
4. in the case of air or water (liquid), direct acting film pressure reducing valve or pilot membrane type pressure reducing valve should be selected.
5. in case of steam medium, pilot piston type pressure reducing valve or pilot bellows type pressure reducing valve should be selected.
6. in order to facilitate operation, adjustment and maintenance, the pressure reducing valve shall be installed on the horizontal pipe generally.
Select the type and precision of pressure regulating valve according to the requirements of use, and then select its diameter according to the output flow of required * valve. When determining the air supply pressure of the valve, it should be greater than * output pressure of 0.1MPa. The pressure reducing valve is generally installed after the water separator and before the oil mist or the setting device, and pay attention not to connect the inlet and outlet of the valve to the reverse; when the valve is not used, the knob shall be loosened to avoid the diaphragm often under pressure deformation and affect its performance.
 

進口減壓閥產(chǎn)品簡介：

德國洛克《DE LOCKE》進口減壓閥是采用控制閥體內的啟閉件的開度來調節(jié)介質的流量，將介質的壓力降低，同時借助閥后壓力的作用調節(jié)啟閉件的開度，使閥后壓力保持在一定范圍內，并在閥體內或閥后噴入冷卻水，將介質的溫度降低，這種閥門稱為減壓減溫閥。該閥的特點，是在進口壓力不斷變化的情況下，保持出口聽壓力和溫度值在一定的范圍內。

Introduction to imported pressure reducing valve products:
The de lock imported pressure reducing valve of Locke, Germany, uses the opening of the opening and closing parts in the valve body to adjust the flow of the medium, reduce the pressure of the medium, and adjust the opening of the opening and closing parts by the function of the pressure behind the valve, so that the pressure behind the valve is kept within a certain range, and the cooling water is injected into the valve body or after the valve, so as to reduce the temperature of the medium. This valve is called the pressure reducing and reducing valve. The valve is characterized by keeping the outlet listening pressure and temperature within a certain range under the condition of constant change of inlet pressure.