蒸汽介质适配阀门​

Steam medium adaptation valve

良工有多款产品适用于蒸汽管路。像 YG13H/Y、YG43H/Y 高灵敏度蒸汽减压阀，属于先导活塞式。它通过调节弹簧压力设定出口压力，利用膜片传感出口压力变化，驱动活塞调节主阀节流面积来减压稳压。此阀改进了活塞面积、节流与密封结构、导阀结构及调节弹簧形式，提升了对出口压力变化的传感效能，降低压力偏差，延长使用寿命，适用于进口压力和流量变化大的蒸汽管路。​

Lianggong has multiple products suitable for steam pipelines. YG13H/Y and YG43H/Y high-sensitivity steam pressure reducing valves belong to the pilot piston type. It sets the outlet pressure by adjusting the spring pressure, uses a diaphragm to sense the change in outlet pressure, and drives the piston to adjust the throttling area of the main valve to reduce and stabilize pressure. This valve has improved the piston area, throttling and sealing structure, pilot valve structure, and regulating spring form, enhancing the sensing efficiency of outlet pressure changes, reducing pressure deviation, and extending service life. It is suitable for steam pipelines with large changes in inlet pressure and flow rate. ​

上海良工的高温高压膜合式疏水阀也是蒸汽系统常用产品。它排空气能力强，能耐受过热蒸汽和水锤，可在压力范围内进行固定过冷循环操作。阀内膜盒有多种形式，适用于大排量。感温元件耐蚀，材质有碳钢和不锈钢，小型轻量，安装灵活，广泛用于供热汽主管线等蒸汽设备系统。​

Shanghai Lianggong's high-temperature and high-pressure membrane type drain valve is also a commonly used product in steam systems. It has strong air exhaust capacity, can withstand superheated steam and water hammer, and can perform fixed subcooling cycle operation within the pressure range. There are various forms of valve inner film box, suitable for large displacement. The temperature sensing element is corrosion-resistant and made of carbon steel and stainless steel. It is small and lightweight, and can be installed flexibly. It is widely used in steam equipment systems such as heating steam main pipelines. ​

腐蚀性液体适配阀门​

Corrosive liquid compatible valve

针对腐蚀性液体，昆山良工的 J41F4 - 16、J41F46 - 16 型衬氟截止阀表现突出。适用温度 -50~150℃，可用于王水、硫酸等多种强酸、强碱及腐蚀性气体、液体介质管路。该系列以 PTFE（F4）为内衬，能抵御多种强腐蚀性介质，原理是用衬氟材料隔离腐蚀性介质与阀门基体，保障阀门在复杂腐蚀环境稳定运行。​

For corrosive liquids, Kunshan Lianggong's J41F4-16 and J41F46-16 fluorine lined globe valves perform outstandingly. Suitable for temperatures ranging from -50 to 150 ℃, it can be used in pipelines for various strong acids, alkalis, corrosive gases, and liquid media such as aqua regia and sulfuric acid. This series is lined with PTFE (F4) and can resist various highly corrosive media. The principle is to use fluorine lined materials to isolate the corrosive media from the valve substrate, ensuring stable operation of the valve in complex corrosive environments. ​

此外，良工的不锈钢球阀也适用于水、溶剂、酸和天然气等部分腐蚀性介质管路。不锈钢材质耐蚀，球阀结构紧凑、流体阻力小、操作便捷，开闭只需旋转 90°，便于远程控制。​

In addition, Lianggong's stainless steel ball valves are also suitable for pipelines containing corrosive media such as water, solvents, acids, and natural gas. Stainless steel material is corrosion-resistant, and the ball valve has a compact structure, low fluid resistance, and easy operation. It only needs to be rotated 90 ° for opening and closing, making it convenient for remote control. ​

高粘度介质适配阀门​

Valve adapted for high viscosity media

一体式保温球阀是良工适用于高粘度介质的代表。它保温保冷性能佳，阀门通径与管径适配，能减少介质热量损失，用于输送常温下易凝固的高粘度介质，如石油、化工等系统。其整体式结构让阀门体积小、重量轻、无外漏、密封好，夹套采用焊接碳素钢管，耐压牢固。​

The integrated insulated ball valve is a representative of Lianggong's suitability for high viscosity media. It has excellent insulation and cooling performance, and the valve diameter is compatible with the pipe diameter, which can reduce the heat loss of the medium. It is used to transport high viscosity media that are prone to solidification at room temperature, such as petroleum, chemical and other systems. Its integral structure makes the valve small in size, light in weight, leak free, and well sealed. The jacket is made of welded carbon steel pipe, which is pressure resistant and firm. ​

江苏良工牌电动 V 型调节球阀适用于高粘度、悬浮液、纸浆等含纤维介质场合。它与执行机构直连，结构紧凑、尺寸小、重量轻、阻力小且动作灵敏。V 型阀体设计，在小流量或高粘度时也能精确控制。阀座有软、硬密封，关闭时 V 型缺口与阀座有楔形剪切作用，具有自洁功能，可防球芯卡死，适用于管线结垢或含纤维、颗粒固体的场合。

Jiangsu Lianggong brand electric V-shaped regulating ball valve is suitable for high viscosity, suspension, pulp and other fiber containing media applications. It is directly connected to the actuator, with a compact structure, small size, light weight, low resistance, and sensitive action. The V-shaped valve body design allows for precise control even at low flow rates or high viscosity. The valve seat has soft and hard seals, and when closed, the V-shaped notch has a wedge-shaped shear effect with the valve seat. It has self-cleaning function and can prevent the ball core from getting stuck. It is suitable for situations where pipelines are scaled or contain fiber or particle solids.

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