進口動態平衡電動二通閥 技術參數 Technical paramete

動態平衡電動二通閥在制冷和供熱系統中，風機盤管通常由電動二通閥控制。當一些風機盤管關閉時，其他運行的風機盤管流量將增加，引發室溫波動。STV系列是集動態流量平衡閥和電動二通閥于一體的產品，由電熱執行器控制。在閥門開啟時，通過動態平衡閥的恒流作用維持流經設備的流量不變而不受系統壓力波動的影響，使控制精度更高。在制冷或供熱系統中，當室溫達到房間溫控器設定值時，房間的溫控器發送信號到電熱執行器，令閥門關閉。當室溫高于或低于設定溫度時，房間溫控器發送信號到電熱執行器，令閥門開啟。通過閥門關閉和開啟，使室溫始終保持在房間溫控器設定的溫度范圍內。內置平衡閥芯會自動保持流量恒定 RETZ dynamic balance electric two-way valve In refrigeration and heating systems, fan coil units are usually controlled by electric two-way valves. When some fan coils are closed, the flow of other fan coils in operation will increase, causing room temperature fluctuations. STV series is a product integrating dynamic flow balance valve and electric two-way valve, which is controlled by electric actuator. When the valve is opened, the constant flow of the dynamic balance valve keeps the flow through the equipment unchanged without being affected by the system pressure fluctuation, so that the control accuracy is higher. In the refrigeration or heating system, when the room temperature reaches the set value of the room temperature controller, the room temperature controller sends a signal to the electric actuator to close the valve. When the room temperature is higher or lower than the set temperature, the room temperature controller sends a signal to the electric actuator to open the valve. By closing and opening the valve, the room temperature is always kept within the temperature range set by the room temperature controller. The built-in balance valve core will automatically keep the flow constant.

規格說明 Description

連接口徑∶螺紋G1/2"-G1"   Connection diameter: thread G1 / 2 "- G1"

公稱壓力∶2.0Mpa  Nominal pressure: 2.0MPa

介質溫度∶2～90℃  Medium temperature: 2 ～ 90 ℃

適用介質∶冷、熱水或30%乙二醇溶液  Applicable medium: cold, hot water or 30% ethylene glycol solution

驅動電源∶AC24V、AC110V、AC220V 50/60Hz  Driving power supply:AC24V、AC110V、AC220V 50/60Hz 

功能消耗∶2VA   Function consumption: 2VA

控制誤差：≤5%  Control error: ≤ 5%

工作壓差∶20-200KPa/30-300KPa  Working pressure difference: 20-200kpa / 30-300kpa

防護等級∶IP44  Protection grade: IP44

驅動控制∶NO/OFF  Drive control: NO/OFF

連接螺套∶30×1.5mm  Connecting screw sleeve: 30 × 1.5mm

動作時間∶<6min  Action time: < 6min

進口動態平衡電動二通閥零部件材質 Component material

①閥體：黃銅  Valve body: Brass

②閥膽：黃銅/不銹鋼 Valve liner: Brass / stainless steel

③阻斷片：EPDM  Blocker: EPDM

④閥桿：不銹鋼 Valve stem: stainless steel

⑤彈簧：不銹鋼 Spring: stainless steel

⑥密封材料：NBR  Sealing material: NBR

⑦執行器：外殼材料阻燃PC，執行器內件∶增強POM  Actuator: shell material flame retardant PC, actuator internals: reinforced POM

流量特性 Flow characteristics

性能特點∶ Performance characteristics

通過控制系統信號實現開/關控制 On / off control via control system signal

動態流量平衡，消除末端設備的相互干擾  Dynamic flow balance to eliminate mutual interference of terminal equipment

系統調控精度更高，比傳統的變流量系統更舒適 The system has higher regulation accuracy and is more comfortable than the traditional variable flow system

工廠預置流  Factory preset flow

不需要現場調試，系統運行效率更高 No on-site debugging is required, and the system operation efficiency is higher

安裝說明 Installation instructions

·將設備要求的額定參數與產品上標示的額定參數進行對照，確保產品的額定流量滿足應用的要求  Compare the rated parameters required by the equipment with the rated parameters marked on the product to ensure that the rated flow of the product meets the requirements of the application

·安裝人員必須經過培訓或富有經驗，以確保安裝工作順利完成  Installation personnel must be trained or experienced to ensure the smooth completion of installation

·在安裝結束后必須進行徹底地檢查以確保安裝無誤  After installation, a thorough inspection must be carried out to ensure that the installation is correct

·為確保安裝工作不出現任何意外，在產品安裝前必須對管道系統進行徹底的清洗（必要時采用化學試劑），以確保管道系統的清潔、無銹蝕和污垢，在沖洗前必須移去所有的過濾裝置以確保管道通暢  In order to ensure that there is no accident in the installation, the pipeline system must be thoroughly cleaned before the installation of the product (chemical reagent is used if necessary) to ensure that the pipeline system is clean, free of rust and dirt. All filter devices must be removed before flushing to ensure that the pipeline is smooth

·注意該設備不要使用在介質含有較多油脂，礦物油等粘度較高或有腐蝕性的地方  Note: the equipment should not be used in places with high viscosity or corrosivity such as medium containing more grease and mineral oil

·在安裝時應注意確保水流方向與閥體標識的箭頭方向 During installation, attention shall be paid to ensure that the water flow direction is the same as the arrow direction marked on the valve body