During the use of pneumatic valve, it is usually necessary to configure some auxiliary parts to improve the performance of pneumatic valve, or improve the use efficiency of pneumatic valve. Common accessories of pneumatic valve include: air filter, reversing solenoid valve, limit switch, electric positioner, etc. In pneumatic technology, air filter, pressure reducing valve and oil mist atomizer are assembled together to form a pneumatic triplet, which is used to purify and filter the air source entering the pneumatic instrument and reduce the pressure to the rated air source pressure supplied by the instrument, equivalent to the function of the power transformer in the circuit.

氣動閥門配件種類：

Type of pneumatic valve accessories:

雙動式氣動執(zhí)行器：對閥門開啟和關(guān)閉的兩位式控制。（雙作用）

Double acting pneumatic actuator: two position control for valve opening and closing. (Double acting)

彈簧復(fù)位式執(zhí)行器：在電路氣路切斷或故障，閥門自動開啟或關(guān)閉。（單作用）

Spring return actuator: when the circuit gas circuit is cut off or fails, the valve will open or close automatically. (Single acting)

單電控電磁閥：供電時閥門打開或關(guān)閉，斷電時閥門關(guān)閉或打開 (可提供防爆型)。

Single electric control solenoid valve: the valve is opened or closed when power is supplied, and closed or opened when power is off (explosion-proof type is available).

雙電控電磁閥：一個線圈得電時閥門打開，另一個線圈得電時閥門關(guān)閉，有記憶功能 (可提供防爆型)。

Double electric control solenoid valve: the valve is opened when one coil is powered on and closed when the other coil is powered on, with memory function (explosion-proof type is available).

限位開關(guān)回訊器：遠(yuǎn)距離傳送閥門的開關(guān)位置的信號 (有防爆型)。

Limit switch annunciator: remote transmission of valve switch position signal (explosion-proof type).

電氣定位器：根據(jù)電流信號 (標(biāo)準(zhǔn)4-20mA)的大小對閥門的介質(zhì)流量調(diào)節(jié)控制(有防爆型)。

Electric positioner: adjust and control the medium flow of the valve according to the current signal (standard 4-20mA) (explosion-proof type).

氣動定位器：根據(jù)氣壓信號 (標(biāo)0.02-0.1MPa)的大小對閥門的介質(zhì)流量調(diào)節(jié)控制。

Pneumatic positioner: adjust and control the medium flow of the valve according to the size of the air pressure signal (0.02-0.1MPa).

電氣轉(zhuǎn)換器：將電流信號轉(zhuǎn)換成氣壓信號，與氣動定位器配套使用 (有防爆型)。

Electrical converter: convert the current signal into the air pressure signal, and use it together with the pneumatic positioner (explosion-proof type).

氣源處理三聯(lián)件：包括空氣減壓閥、過濾器、油霧器，對氣源穩(wěn)壓、清潔、運(yùn)動部件潤滑作用。

Air source treatment triplet: including air pressure reducing valve, filter and oil mist collector, which can stabilize and clean the air source and lubricate moving parts.

手動操作機(jī)構(gòu)：自動控制在不正常情況下可以手動操作。

Manual operating mechanism: the automatic control can be operated manually under abnormal conditions.

氣動閥門配件選型：

Selection of pneumatic valve accessories:

氣動閥門是復(fù)雜的自動化控制儀表，由多種氣動元件組成，用戶需根據(jù)控制需要，進(jìn)行詳細(xì)選擇。

Pneumatic valve is a complex automatic control instrument, which is composed of a variety of pneumatic components. Users need to make detailed selection according to the control needs.

1、氣動執(zhí)行器：①雙作用式、②單作用式、③型號規(guī)格、④動作時間。

1. Pneumatic actuator: ① double acting, ② single acting, ③ model and specification, ④ action time.

2、電磁閥：①單控電磁閥、②雙控電磁閥、③使用電壓、④防爆型。

2. Solenoid valve: ① single control solenoid valve, ② dual control solenoid valve, ③ applied voltage, ④ explosion-proof type.

3、信號反饋：①機(jī)械式開關(guān)、②接近式開關(guān)、⑧輸出電流信號、④使用電壓、⑤防爆型。

3. Signal feedback: ① mechanical switch, ② proximity switch, ⑧ output current signal, ④ applied voltage, ⑤ explosion-proof type.

4、定位器：①電氣定位器、②氣動定位器、⑧電流信號、④氣壓信號、⑤電氣轉(zhuǎn)換器、⑥防爆型。

4. Positioner: ① electric positioner, ② pneumatic positioner, ⑧ current signal, ④ air pressure signal, ⑤ electrical converter, ⑥ explosion-proof type.

5、氣源處理三聯(lián)件：①過濾減壓閥、②油霧器。

5. Air source treatment triplet: ① filter pressure reducing valve, ② oil mist atomizer.

6、手動操作機(jī)構(gòu)。

6. Manual operating mechanism.

氣動閥門的安裝與使用

Installation and use of pneumatic valve

（1）氣動閥門在安裝使用之前，對閥門進(jìn)行安裝前的檢查和開關(guān)運(yùn)行試驗(yàn)。只有在運(yùn)行動作正常的條件下，才能安裝使用。

(1) Before the pneumatic valve is installed and used, the valve shall be inspected before installation and tested for opening and closing operation. It can be installed and used only when the operation is normal.

（2）氣動閥門的安裝要盡可能使閥門與管路法蘭同心，并加支撐固定。不能使球閥受其它外力作用，以免損壞閥門的中密封及閥門變形。造成閥門開關(guān)不靈及閥門的損壞而無法使用。

(2) The installation of pneumatic valve shall make the valve and pipeline flange concentric as far as possible, and shall be supported and fixed. The ball valve shall not be subjected to other external forces to avoid damage to the middle seal of the valve and deformation of the valve. The valve cannot be used due to inflexible opening and closing and damage of the valve.

（3）要保證氣動球閥及氣動元件所提供的動力氣源是潔凈，盡可能不帶油污及水。清潔度應(yīng)小于0.4微米。

(3) Ensure that the power air supply provided by the pneumatic ball valve and pneumatic components is clean and free of oil and water as much as possible. The cleanliness shall be less than 0.4 microns.

（4）接入氣源之前，清潔供氣管路，氣源接口和開關(guān)等器件，以防由于管路不清潔帶上污物和泥沙沖入氣動執(zhí)行單元而造成故障。

(4) Before connecting to the air source, clean the air supply pipeline, air source interface, switch and other devices to prevent the failure caused by the uncleaned pipeline with dirt and sediment rushing into the pneumatic actuating unit.

（5）氣動執(zhí)行器、電磁閥、定位器、過濾器、減壓閥等的連接，可用銅管或尼龍管，為以防防塵及減小噪聲，排氣口應(yīng)安裝消聲器或消聲節(jié)流閥。

(5) The connection of pneumatic actuator, solenoid valve, positioner, filter, pressure reducing valve, etc. can be made of copper pipe or nylon pipe. In order to prevent dust and reduce noise, the exhaust port shall be installed with muffler or silencing throttle valve.

（6）安裝好以后，對氣動閥門應(yīng)進(jìn)行試驗(yàn)，給氣動執(zhí)行器加壓至額定值，壓力為0.4～0.7mpa，對氣動球閥進(jìn)行開關(guān)試驗(yàn)，觀察閥門的開閉情況。應(yīng)轉(zhuǎn)動靈活無卡阻現(xiàn)象。在開關(guān)如有卡阻現(xiàn)象可增高氣壓，反復(fù)開關(guān)使閥門調(diào)到開關(guān)靈活即可。

(6) After installation, the pneumatic valve shall be tested, the pneumatic actuator shall be pressurized to the rated value with the pressure of 0.4~0.7 mpa, the pneumatic ball valve shall be tested for opening and closing, and the opening and closing of the valve shall be observed. It shall rotate flexibly without jamming. If the switch is jammed, the air pressure can be increased. Repeated opening and closing can make the valve flexible.

（7）安裝調(diào)試開關(guān)型氣動閥時，先用手動裝置進(jìn)行（電磁閥上的手動按鈕）調(diào)試、動作正常后在通電調(diào)試。

(7) When installing and debugging the switch type pneumatic valve, first use the manual device (the manual button on the solenoid valve) for debugging, and then conduct the power on debugging after the action is normal.

（8）氣動閥門應(yīng)定期進(jìn)行維護(hù)保養(yǎng)閥桿轉(zhuǎn)動處，應(yīng)三個月加油（機(jī)油）一次。定期對氣動執(zhí)行單元和配合使用的空氣過濾器進(jìn)行放水、排污。正常的情況下六個月檢查一次，每年檢修一次。

(8) The pneumatic valve shall be maintained regularly at the rotating position of the valve stem, and oil (engine oil) shall be added once every three months. Regularly drain and blow down the pneumatic actuating unit and the air filter used together. Under normal conditions, the inspection shall be conducted once every six months and the maintenance shall be conducted once a year.