retz定流量閥、動態流量平衡閥主要用於解決流體輸配管網水力失調的難題，當系統壓力在工作壓差範圍內波動時它能動態地平衡這種變化而保持所在管道的流量恆定retz the constant flow valve and dynamic flow balance valve are mainly used to solve the problem of hydraulic imbalance in fluid transmission and distribution pipelines. when the system pressure fluctuates within the working pressure difference range, they can dynamically balance this change and maintain a constant flow rate in the pipeline where they are located
進口動態流量平衡閥技術引數 technical paramete
1.壓差低於最小工作壓差時，閥芯全開，與孔板功能一致，流量隨壓差增大而增大when the pressure difference is lower than the minimum working pressure difference, the valve core is fully opened, which is consistent with the function of the orifice plate, and the flow increases with the increase of the pressure difference (fig. 1)
2.壓差在工作壓差範圍內時，閥芯根據系統壓差的變化改變開度，保證設計流量在±5%的偏差範圍內變化（圖2）retz when the pressure difference is within the working pressure difference range, the valve core changes the opening according to the change of the system pressure difference to ensure that the design flow changes within the deviation range of ± 5% (fig. 2)
3.壓差大於工作壓差時，閥芯開度最小，與孔板功能一致，流量隨壓差增大而增大when the pressure difference is greater than the maximum working pressure difference, the opening of the valve core is the smallest, which is consistent with the function of the orifice plate. the flow increases with the increase of the pressure difference (fig. 3)
4.在工作壓差範圍內，流量保持恆定the flow rate remains constant in the range of operating differential pressure (figure 4)
進口動態流量平衡閥效能特點∶ performance characteristics
1.動態平衡∶當系統壓差產生波動時，閥芯自動調整可變流道開度，能實現被控區域恆定流量retz dynamic balance: when the pressure difference of the system fluctuates, the valve core automatically adjusts the opening of the variable flow channel, which can realize the constant flow in the controlled area
2.準確校準的閥芯可確保流量恆定在±5%的偏差範圍內 the precisely calibrated spool ensures that the flow is constant within ± 5% of the deviation
3.流量出廠設定，每個尺寸具有多個壓差範圍可供選擇 flow factory setting, each size has multiple pressure difference ranges for selection
4.不需現場除錯，減少人力成本 no on-site commissioning is required to reduce labor cost
5.系統變化後，不需對系統進行再平衡設計 after the system changes, there is no need to rebalance the system
進口動態流量平衡閥選型引數。
尺寸：2"-20" size: 2 "-20"
工作溫度：0~110℃ working temperature: 0 ~ 110 ℃
承壓等級：pn16/pn25 pressure bearing grade: pn16 / pn25
誤差：±5% error: ±5%
壓差範圍∶14-220kpa，35-410kpa pressure difference range: 14-220kpa, 35-410kpa
工作介質∶冷熱水、乙/丙二醇溶液 working medium: cold and hot water, ethylene / propylene glycol solution
連線方式∶法蘭、對夾連線 connection method: flange and clamp connection
零部件材質 component material
閥體：球墨鑄鐵 valve body: ductile iron
閥膽：閥芯：不鏽鋼/青銅，彈簧：不鏽鋼 valve liner: valve core: stainless steel / bronze, spring: stainless steel
o型圈：epdm o-ring: epdm
測量嘴：不鏽鋼/黃銅 measuring nozzle: stainless steel / brass
吊環螺釘∶不鏽鋼304 eyebolt: stainless steel 304
安裝說明 installation instructions
1.根據閥門選型正確使用閥門，避免用錯流量及壓差 use the valve correctly according to the valve selection to **oid wrong flow and pressure difference
2.注意系統管道排氣，系統存氣，可能會引起介質堵塞、調節功能失效、或雜訊過大 pay attention to the exhaust of the system pipe and the air in the system, which may cause medium blockage, regulation function failure or excessive noise
3.該閥門可水平安裝亦可垂直安裝，安裝過程中應注意介質流向，方向裝反會失去功能 the valve can be installed horizontally or vertically. pay attention to the flow direction of medium during installation. if the direction is reversed, it will lose its function
4.閥門進水端建議加過濾器或清洗管路，可避免大顆粒雜質堵塞閥門控制項 it is recommended to add a filter or clean the pipeline at the water inlet end of the valve to **oid blocking the control element of the valve with large particles
5.注意檢測孔的保護，碰掉或變形會引起洩露或以後的維護困難 pay attention to the protection of the inspection hole. if it is touched or deformed, it will cause leakage or later maintenance difficulties
進口自力式流量平衡閥 可調流量控制閥
retz自力式流量平衡閥通過調節閥芯位置來控制閥門的開啟面積，從而實現對流量的調節和平衡。當流量增加時，壓差也會增加，閥芯向上移動，閥門開啟面積增加，從而減小壓差，使流量達到平衡 當流量減小時，壓差也會減小，閥芯向下移動，閥門開啟面積減小，從而增加壓差，使流量達到平衡。這種閥門具有動態調節的能力，可...
進口多功能定流量控制閥 截止止回節流平衡閥
retz多功能定流量控制閥 多功能三合一止回閥通常安裝在一般建築，公寓及工廠的供排水，冷暖水處理，及鍋爐的冷凝水，二次供水管道的幫浦出口上，用來防止幫浦停止運轉而引起的管道內的介質倒流retz multifunctional constant flow control valves and mult...
進口動態壓差平衡閥 動態差壓控制閥
retz動態壓差平衡閥外在高壓端測壓頭帶有鎖閉閥，低壓腔體導壓孔內建，避免了現場安裝的磕碰。廣泛應用於恆定空調或供熱系統中控制閥 末端裝置或管網之路供水之間的壓差，避免管網壓差變化對其動態干擾，實現動態水力平衡retz the dynamic differential pressure balanc...