進口蒸汽調節閥

進口蒸汽調節閥就是以壓縮空氣為動力源，以氣缸為執行器，并借助于電氣閥門定位器、轉換器、電磁閥、保位閥等附件去驅動閥門，實現開關量或比例式調節，接收工業自動化控制系統的控制信號來完成調節管道介質的：流量、壓力、溫度等各種工藝參數。氣動調節閥的特點就是控制簡單，反應快速，且本質安全，不需另外再采取防爆措施。

進口蒸汽調節閥常見故障及產生的原因

（一）調節閥不動作。故障現象及原因如下：

1．無信號、無氣源。①氣源未開，②由于氣源含水在冬季結冰，導致風管堵塞或過濾器、減壓閥堵塞失靈，③壓縮機故障；④氣源總管泄漏。

2．有氣源，無信號。①調節器故障，②信號管泄漏；③定位器波紋管漏氣；④調節網膜片損壞。

3．定位器無氣源。①過濾器堵塞；②減壓閥故障I③管道泄漏或堵塞。

4．定位器有氣源，無輸出。定位器的節流孔堵塞。

5．有信號、無動作。①閥芯脫落，②閥芯與社會或與閥座卡死；③閥桿彎曲或折斷；④閥座閥芯凍結或焦塊污物；⑤執行機構彈簧因長期不用而銹死。

進口蒸汽調節閥有以下特征：

1、蒸汽調節閥的閥體流體通道呈S流線型, 壓降損失小, 流量大, 可調范圍廣,流量特性曲線精度高

2、蒸汽調節閥閥芯導向面積大, 抗振性好。結構緊湊,輸出力大,可用于控制各種不同壓力和溫度的蒸汽

3、蒸汽調節閥個部件經過細的研磨，消除痕跡，減小或消除密封間隙，提高密封面的光潔度，具有高密封性能。

4、蒸汽調節閥配有高精度的定位開關及各種膜片、膜盒及感溫器材，能精確控制蒸汽的壓力、流量及溫度等參數。

進口蒸汽調節閥選型分析：

(1) 閥芯形狀結構主要根據所選擇的流量特性和不平衡力等因素考慮。

(2) 耐磨損性當流體介質是含有高濃度磨損性顆粒的懸浮液時，閥的內部材料要堅硬。

(3) 耐腐蝕性由于介質具有腐蝕性，盡量選擇結構簡單閥門。

(4) 介質的溫度、壓力當介質的溫度、壓力高且變化大時，應選用閥芯和閥座的材料受溫度、壓力變化小的閥門。

(5) 防止閃蒸和空化閃蒸和空化只產生在液體介質。在實際生產過程中，閃蒸和空化會形成振動和噪聲，縮短閥門的使用壽命，因此在選擇閥門時應防止閥門產生閃蒸和空化。

Inlet steam valve

Inlet steam control valve is driven by compressed air source to the cylinder as the actuator, and the help of electric valve positioner, accessories converters, solenoid valves, valves and other secure his position to drive the valve to achieve proportional adjustment switch or receiving industrial automation and control systems control signal to complete the adjustment of media channels: flow, pressure, temperature and other process parameters. Pneumatic control valve is characterized by simple, rapid response, and the intrinsically safe, without additional proof before taking action.

Common reasons for imported steam control valve failure and resulting

(A) regulating valve does not operate. Symptom and for the following reasons:

1. No signal, no gas supply. ① gas source is not open, ② air moisture in the winter due to ice, causing duct blockage or filters, valve block failure, ③ compressor failure; ④ pneumatic manifold leak.

2. Gas source, no signal. ① regulator failure, ② signal pipe leakage; ③ bellows leak locator; ④ adjust caul sheet damage.

3. Locator airless sources. ① filter clogging; ② valve failure I③ pipeline leak or blockage.

4. Locator gas source, no output. Locator clogging of the orifice.

5. A signal, no action. Spool off ①, ② spool and social or stuck with the valve seat; ③ stem bent or broken; ④ spool valve block frozen or burnt dirt; ⑤ actuator springs rusted because of long-term need.

Inlet steam control valve has the following features:

A steam control valve body fluid channel S streamlined, the pressure drop, flow rate, adjustable wide range of high precision flow characteristic curve

2, the steam valve plug guide area, good vibration resistance. Compact structure, the output force, can be used to control a wide range of pressure and temperature steam

3, the steam control valve member through a fine grinding, to eliminate traces, reduce or eliminate the sealing gap and improve the smoothness of the sealing surface, having a high sealing performance.

4, steam control valve is equipped with high-precision positioning and a variety of membrane switches, diaphragm and temperature sensing devices that can precisely control the pressure of the steam flow and temperature and other parameters.

Selection of imported steam control valve:

(1) disc shape of the structure is mainly based on the selected flow characteristics and unbalanced forces and other factors considered.

(2) wear resistance when the fluid medium is a suspension containing a high concentration of abrasive particles, the internal material of the valve to be hard.

(3) corrosion resistance as a corrosive medium, try to choose simple valve.

Temperature (4) media pressure when the medium temperature, high pressure and great change, should be chosen disc and seat materials by temperature and pressure changes small valves.

(5) to prevent flash steam and air and cavitation only in a liquid medium. In the actual production process, steam and air will form a vibration and noise, shortening the life of the valve, so when selecting a valve to prevent the valve generate steam and air.

Germany Orr Shen (ORSEN) International Group was established in 1953, the company has a strong design team to develop a fluid control products lead the new trend in Europe. After 50 years of development, Orr Shen (ORSEN) has become Germany, Europe and the world's most famous brand of fluid control. Shanghai International Group by the German Orr (GER ORSEN INTERNATIONAL GROUP) authorization and Beijing Huatai Hui Valve Co., Ltd. for the German ORSEN International Group (GER ORSEN INTERNATIONAL GROUP) in Beijing, China agent, is responsible for the promotion of China in Beijing, service and sales. Please login website: http: //www.bj-valve.net/product/detail/1066.html Selection Tel: 010-57165677 Huatai Hui URL: http: //www.bj-valve.net/ Sales Manager: Wang Master Mobile: 13718983583