Pneumatic control valve, also known as control valve, is a device that changes the flow rate through power operation in a process control system. The pneumatic regulating valve consists of an actuator and valve body components to regulate flow. Pneumatic control valves are the main type of actuators. Lianggong valve actuator is an instrument that directly changes operating variables and is a terminal component. In addition to regulating valves, actuators also include products such as pneumatic motors, pneumatic robots, solenoid valves, and electric speed regulating pumps.

執(zhí)行機(jī)構(gòu)是將控制信號(hào)轉(zhuǎn)換為控制閥截流部件位置或其他調(diào)節(jié)機(jī)構(gòu)狀態(tài)的相應(yīng)動(dòng)作的裝置。信號(hào)或驅(qū)動(dòng)力可由氣動(dòng)、電動(dòng)、液動(dòng)或任意組合組成。良工閥門閥體部件是氣動(dòng)調(diào)節(jié)閥的調(diào)節(jié)部件，主要由閥殼、閥桿、閥芯、閥座、壓蓋和密封件組成。它們直接接觸介質(zhì)，改變閥芯和閥座之間的循環(huán)面積，以實(shí)現(xiàn)調(diào)節(jié)流量的目的。

The actuator is a device that converts control signals into corresponding actions to control the position of the valve shut-off component or other regulating mechanism states. The signal or driving force can be composed of pneumatic, electric, hydraulic or any combination. The valve body components of Lianggong Valve are the regulating components of pneumatic control valves, mainly composed of valve casing, valve stem, valve core, valve seat, gland, and sealing parts. They directly contact the medium, changing the circulation area between the valve core and valve seat to achieve the purpose of regulating flow.

氣動(dòng)調(diào)節(jié)閥采用多彈簧氣動(dòng)膜執(zhí)行機(jī)構(gòu)，單座調(diào)節(jié)閥閥體采用等截面S型流道設(shè)計(jì)，閥芯采用頂導(dǎo)結(jié)構(gòu)，體積小，重量輕，流量輕

The pneumatic regulating valve adopts a multi spring pneumatic diaphragm actuator, and the single seat regulating valve body adopts a constant cross-section S-shaped flow channel design. The valve core adopts a top guide structure, which is small in size, light in weight, and light in flow rate

能力大，泄漏小；套筒和雙座調(diào)節(jié)閥采用壓力平衡結(jié)構(gòu)，具有壓差大、運(yùn)行平穩(wěn)、噪音低等優(yōu)點(diǎn)。

Large capacity, small leakage; The sleeve and double seat regulating valve adopt a pressure balance structure, which has the advantages of large pressure difference, smooth operation, and low noise.

單座、雙座、套筒、角形、隔膜、三通調(diào)節(jié)閥可根據(jù)允許壓差、介質(zhì)特性和工藝管道要求選擇；

Single seat, double seat, sleeve, angular, diaphragm, and three-way regulating valves can be selected based on allowable pressure difference, medium characteristics, and process pipeline requirements;

根據(jù)工藝要求，流量特性可選直線，等百分比，快開；

According to process requirements, the flow characteristics can be selected as straight line, equal percentage, and quick opening;

公稱壓力可根據(jù)壓力選擇PN1.6MPa,PN4.0MPa,PN6.4Mpa的調(diào)節(jié)閥；

The nominal pressure can be selected according to the pressure, with regulating valves of PN1.6MPa, PN4.0MPa, and PN6.4Mpa;

鑄鐵、鑄鋼、鑄不銹鋼、鑄合金鋼、煅鋼等材料的調(diào)節(jié)閥可根據(jù)介質(zhì)的防腐要求和壓力等級(jí)選擇；

Control valves made of materials such as cast iron, cast steel, cast stainless steel, cast alloy steel, and forged steel can be selected based on the anti-corrosion requirements and pressure level of the medium;

根據(jù)介質(zhì)溫度和特殊要求，可選用標(biāo)準(zhǔn)型、高溫散熱型、低溫型、夾套保溫型調(diào)節(jié)閥；

According to the medium temperature and special requirements, standard type, high-temperature heat dissipation type, low-temperature type, and jacket insulation type regulating valves can be selected;

根據(jù)介質(zhì)泄漏和安全考慮，可選擇硬密封、軟密封、波紋管密封等調(diào)節(jié)閥；我廠硬密封調(diào)節(jié)閥泄漏等級(jí)高于IV等級(jí)；軟密封調(diào)節(jié)閥無泄漏；

Based on medium leakage and safety considerations, regulating valves such as hard sealing, soft sealing, and corrugated pipe sealing can be selected; The leakage level of our factory's hard seal regulating valve is higher than level IV; The soft seal regulating valve has no leakage;

根據(jù)氣源和控制設(shè)備，可選信號(hào)范圍為20~100Kpa，40～200Kpa，4～20mA.DC，0～10mA.DC；

According to the gas source and control equipment, the optional signal range is 20~100Kpa, 40~200Kpa, 4~20mA.DC, and 0~10mA.DC;

根據(jù)良工閥門工藝控制要求，可配備以下附件：手輪機(jī)構(gòu)、閥門定位器、空氣過濾減壓器、電氣轉(zhuǎn)換器、閥電磁閥、保位閥等附件。

According to the process control requirements of Lianggong Valve, the following accessories can be equipped: handwheel mechanism, valve locator, air filter pressure reducer, electrical converter, valve solenoid valve, retaining valve, and other accessories.

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