国产极品乱码久久久久7777-精品国产乱码久久久久妇女-日韩亚国产欧美三级久久蜜-中文字幕 国产精品 日韩精品

0731-82716163

Duct heater

Duct heater

The air duct heater is mainly used for heating the air in the air duct. The specifications are divided into three forms: low temperature, middle temperature, and high temperature. The common feature in the structure is the use of steel plates to support the electric heating tube to reduce the vibration of the electric heating tube when the fan stops. Over-temperature control devices are installed in the junction boxes. The low temperature type can be directly installed on the air duct, and the medium temperature type and high temperature type have a 100mm thick insulation material clamped on the outer wall of the channel to the heater junction box due to the difference in structure. Reduced temperature inside the terminal compartment.


Features:

1. The electric heating tube uses an outer-wound corrugated stainless steel strip, which increases the heat dissipation area and greatly improves the heat exchange efficiency.

2. The design of the heater is reasonable, the wind resistance is small, the heating is uniform, and there is no high or low temperature dead angle.

3. Double protection and good safety performance. A temperature controller and a fuse are installed on the heater, which can be used to control the air temperature in the duct and work under no wind conditions to ensure foolproof.


主站蜘蛛池模板: 一本色道久久综合无码 | 精品中文字幕久久久久四十五十骆 | 久久精品国产亚洲AV久一一区三级 | 免费中文字幕av | 无码人妻少妇色欲AV一区二区 | 麻豆国产一区二区三区四区 | 三级毛片啪啪视频 | 成人做爰A片免费看黄冈 | 人妻少妇200系列视频 | 国产一区二区自慰喷水在线观看 | 成人影片在线播放 | 性──交──性──乱老牛视频 | 蜜桃国精产品二三三区视频 | 女性成人黄色视频免费观看 | 五月丁香社区婷婷 | 久久精品亚洲熟妇少妇任你躁 | 一级婬片A片久久久野花谷 在线观看日本黄色动态视频 | 一区二区三区亚洲国产精品 | 十八禁播黄色美女 | 亚洲国产精品久久久一区二区无码 | 久久精品视频免费在线观看 | 成人做爰免费A片视频张悠雨 | 久久久久无码精品 | 久久久久亚州AV成人..... | “ 无码 ” 的搜索结果 | 99国产精品6免费视频 | 日本一级婬片A片AAA毛多多 | 法国熟女一级婬片A片 | 精品不卡一区二区 | 无码人妻精品一区二区蜜桃色欲 | 91精品无码国产一区二区三区麻豆 | 蜜桃视频在线入口www | 国产激情第71页 | 激情五月婷在线视频 | 超级,亚洲免费,蜜桃,av, | 日韩精品极品视频在线观看免费 | 午夜理理伦电影A片无码新新娇妻 | 国产第一午夜福利在线 | 精品久久国产蜜臀色欲69 | 亚洲午夜精品一区二区三区他趣 | 精品国产免费无码久久久密月 |