良工阀门：一眼辨开关，告别供暖误操作！万能判断法 + 专业规范全解析

　　Lianggong Valve: One glance identification switch, say goodbye to heating misoperation! Universal judgment method+comprehensive analysis of professional standards

　　每年供暖季启停阶段，超 70% 家庭因分不清暖气阀门开关状态，导致供暖不热、停暖后管道缺水锈蚀，成为暖通系统高频故障诱因。作为暖通管路控制核心部件，良工阀门以标准化设计与清晰标识，让阀门状态判断 “一看就懂、一学就会”，彻底解决用户 “辨阀难、操作错” 的痛点，守护家庭供暖系统稳定运行。

　　During the start and stop stages of the heating season each year, over 70% of households fail to distinguish the status of the heating valve, resulting in heating failure, water shortage, and corrosion of pipelines after heating is stopped, which becomes a high-frequency fault cause for the HVAC system. As the core component of HVAC pipeline control, Lianggong Valve adopts standardized design and clear labeling to make valve status judgment "easy to understand and learn", completely solving the pain points of users' "difficult valve identification and incorrect operation", and safeguarding the stable operation of home heating systems.

　　一、万能判断法：手柄辨状态，良工阀门通用无误差

　　1、 Universal judgment method: Handle identification of status, universal error free for Lianggong valves

　　家用暖气系统中，球阀、温控阀是主流配置，良工阀门严格遵循行业通用设计规范，状态判断无需专业知识，仅看手柄与管道角度即可精准识别：

　　In household heating systems, ball valves and temperature control valves are mainstream configurations. Lianggong valves strictly follow industry standard design specifications, and state judgment does not require professional knowledge. Accurate identification can be achieved by simply looking at the angle between the handle and the pipeline

　　开启状态：手柄与管道轴线完全平行、呈一条直线，阀门内部阀芯通孔与管路对齐，热水可顺畅流通，供暖系统正常循环。

　　Open state: The handle is completely parallel to the axis of the pipeline, in a straight line. The internal valve core hole of the valve is aligned with the pipeline, allowing for smooth flow of hot water and normal circulation of the heating system.

　　关闭状态：手柄与管道轴线呈 90° 垂直交叉，阀芯通孔阻断水流通道，彻底切断热水供应，实现管路封闭。

　　Closed state: The handle intersects with the pipeline axis at a 90 ° angle, and the valve core through-hole blocks the water flow channel, completely cutting off the hot water supply and achieving pipeline closure.

　　无论阀门安装方向、外观造型如何变化，该规则均适用。良工阀门全系产品均强化手柄与管道的角度辨识度，部分型号增设 “OPEN（开）”“SHUT（关）” 字母标识及水流箭头，双重保障用户快速判断，杜绝误操作。

　　This rule applies regardless of changes in the installation direction and appearance of the valve. All products of Lianggong Valve have strengthened the angle recognition between the handle and the pipeline, and some models have added "OPEN" and "SHUT" letter markings and water flow arrows to double guarantee users' quick judgment and prevent misoperation.

　　二、分类操作指南：良工阀门不同类型，规范操作更省心

　　2、 Classification operation guide: Lianggong valves of different types, standardized operation is more worry free

　　1. 手柄式球阀（最常用）

　　1. Handle type ball valve (most commonly used)

　　良工手柄式球阀采用 90° 旋转快开结构，操作便捷、密封可靠：

　　The Lianggong handle type ball valve adopts a 90 ° rotating quick opening structure, which is easy to operate and has reliable sealing:

　　开启：将手柄扳至与管道平行位置，听到 “咔哒” 定位声，即为完全开启。

　　Open: Pull the handle to a position parallel to the pipeline and hear a "click" positioning sound, which means it is fully open.

　　关闭：顺时针旋转手柄 90° 至与管道垂直，确保阀门完全闭合，无渗漏风险。

　　Close: Rotate the handle clockwise 90 ° to be perpendicular to the pipeline, ensuring that the valve is fully closed and there is no risk of leakage.

　　适用场景：暖气片进水阀、回水阀、地暖分水器总阀、入户主管路阀。

　　Applicable scenarios: radiator inlet valve, return valve, underfloor heating water distributor main valve, household main pipeline valve.

　　2. 旋钮式温控阀

　　2. Knob type temperature control valve

　　良工温控阀配备数字刻度（0-5）及雪花、太阳标识，兼顾开关与流量调节：

　　Lianggong temperature control valve is equipped with a digital scale (0-5) and snowflake and sun markings, taking into account both switch and flow regulation:

　　开启：逆时针旋转旋钮至数字 “5” 或太阳标识，为最大开启状态。

　　Open: Rotate the knob counterclockwise to the number "5" or the sun symbol for maximum open state.

　　关闭：顺时针旋转旋钮至数字 “0” 或雪花标识，彻底关闭（雪花档多为防冻微开，非全闭）。

　　Close: Rotate the knob clockwise to the number "0" or the snowflake symbol to completely close (snowflake mode is mostly slightly open for antifreeze, not fully closed).

　　适用场景：单组暖气片支路控温阀，精准调节室内温度。

　　Applicable scenario: Single set radiator branch temperature control valve, accurately adjusting indoor temperature.

　　3. 手轮式闸阀（老式系统）

　　3. Handwheel gate valve (old system)

　　良工手轮闸阀采用升降式阀芯设计，旋转多圈实现启闭：

　　The Lianggong handwheel gate valve adopts a lifting valve core design, which rotates multiple times to achieve opening and closing:

　　开启：逆时针旋转手轮，阀杆逐渐升高，直至无法转动，为完全开启。

　　Opening: Rotate the handwheel counterclockwise to gradually raise the valve stem until it cannot be turned, indicating full opening.

　　关闭：顺时针旋转手轮，阀杆下降至底部，彻底阻断水流。

　　Close: Rotate the handwheel clockwise to lower the valve stem to the bottom, completely blocking the water flow.

　　适用场景：老旧集中供暖系统主管路控制。

　　Applicable scenario: Main pipeline control of old central heating systems.

　　三、停暖关键：良工阀门规范关闭顺序，延长系统寿命

　　3、 Key to stopping heating: Standardize the closing sequence of Lianggong valves to extend the system's lifespan

　　停暖后阀门操作不仅是关闭，顺序错误会导致管道缺水、进空气，锈蚀速度提升 3 倍。良工阀门结合暖通行业标准，给出专业操作流程：

　　After the heating is stopped, the valve operation is not only closed, but the wrong sequence can cause water shortage and air intake in the pipeline, and the corrosion rate will increase by three times. Lianggong Valve combines HVAC industry standards and provides professional operating procedures:

　　先关回水阀：找到暖气片下方或分水器回水端阀门，扳至与管道垂直，阻断回水流通。

　　First, close the return valve: find the valve below the radiator or at the return end of the water divider, turn it to be perpendicular to the pipeline, and block the flow of return water.

　　再关供水阀：待回水阀完全闭合后，关闭供水端阀门，形成满水封闭腔体。

　　Close the water supply valve again: After the return valve is completely closed, close the valve at the water supply end to form a fully sealed chamber.

　　严禁放水排气：关闭后勿动排气阀，良工阀门密封性能可长效锁水，实现满水保养，延长管道、暖气片寿命 5-8 年。

　　It is strictly prohibited to discharge water and exhaust: Do not move the exhaust valve after closing it. The sealing performance of the valve can lock water for a long time, achieve full water maintenance, and extend the service life of pipelines and radiators by 5-8 years.

　　四、良工阀门：专业品质，从源头减少操作困扰

　　4、 Lianggong Valve: Professional quality, reducing operational difficulties from the source

　　良工阀门深耕暖通领域多年，产品设计始终围绕用户需求，解决传统阀门 “难辨、难操作、易渗漏” 痛点：

　　Lianggong Valve has been deeply involved in the HVAC field for many years, and its product design always revolves around user needs, solving the pain points of traditional valves that are difficult to distinguish, operate, and prone to leakage

　　标识清晰化：全系阀门标注开关方向、水流箭头，部分型号采用颜色区分（红关绿开），老人、新手也能快速识别。

　　Clear identification: All valves in the series are labeled with switch directions and water flow arrows, and some models are distinguished by color (red off and green on), which can be quickly recognized by both the elderly and beginners.

　　密封高可靠：阀芯采用不锈钢球体，密封面经精密研磨，搭配柔性填料，启闭 10000 次无泄漏，关闭后彻底锁水。

　　Sealing high reliability: The valve core adopts stainless steel ball, and the sealing surface is precision ground, matched with flexible packing. It can be opened and closed 10000 times without leakage, and the water is completely locked after closing.

　　操作轻量化：手柄符合人体工学设计，旋转阻力适中，无需工具即可轻松操作，避免用力过猛损坏阀门。

　　Lightweight operation: The handle is ergonomically designed with moderate rotational resistance, making it easy to operate without tools and avoiding damage to the valve due to excessive force.

　　适配全场景：覆盖 DN15-DN50 全规格，螺纹、法兰多种连接方式，适配暖气片、地暖、集中供暖等各类系统。

　　Suitable for all scenarios: covering all specifications from DN15 to DN50, with multiple connection methods including threads and flanges, suitable for various systems such as radiators, underfloor heating, and central heating.

　　五、常见误区提醒：良工阀门教你避坑

　　5、 Common Misconception Reminder: Lianggong Valve teaches you to avoid pitfalls

　　误区：手柄半开半闭调节温度 —— 良工球阀为通断型阀门，非节流设计，半开易导致阀芯磨损、漏水，控温建议使用专用温控阀。

　　Misconception: The handle is half open and half closed to regulate temperature - Lianggong ball valves are on-off valves with non throttling designs. Half open valves can easily cause valve core wear and water leakage. It is recommended to use specialized temperature control valves for temperature control.

　　误区：阀门拧不动强行掰 —— 遇卡顿可滴少量润滑油，切勿用扳手蛮力操作，良工阀门质保期内非人为损坏可免费更换。

　　Misconception: If the valve cannot be turned and forcefully breaks, a small amount of lubricating oil can be dripped in case of jamming. Do not use a wrench to operate it forcefully. Lianggong valves can be replaced free of charge during the warranty period if they are not damaged by human factors.

　　误区：停暖后不关阀门 —— 管道与外网连通，易导致水体流失、进灰进气，良工阀门建议停暖后必关进出水阀。

　　Misconception: Not closing the valve after stopping the heating process - connecting the pipeline to the external network can easily lead to water loss, ash intake, and air intake. Lianggong Valve recommends closing the inlet and outlet valves after stopping the heating process.

　　阀门虽小，却是供暖系统的 “控制中枢”。良工阀门以标准化设计、清晰化标识、高品质制造，让暖气阀门开关状态一目了然、操作简单规范，从判断到操作全程无忧，既保障供暖季稳定供热，又做好停暖后系统保养，为家庭温暖生活筑牢每一道防线。

　　Although the valve is small, it is the "control center" of the heating system. Lianggong Valve adopts standardized design, clear labeling, and high-quality manufacturing, making the heating valve switch status clear at a glance and easy to operate in a standardized manner. From judgment to operation, the entire process is worry free, ensuring stable heating during the heating season and maintaining the system after the heating is stopped, laying every line of defense for a warm home life.