retz (動態)內螺紋壓差平衡閥是一種自動恆定壓差的的平衡閥，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) inlet internal thread differential pressure balance valve is an automatic constant differential pressure balance valve, which is used for the pressure difference between the control valve, terminal equipment or water supply pipeline in the constant air conditioning or hydronics to **oid the dynamic interference of the pipeline network pressure difference change and achieve dynamic hydraulic balance
進口內螺紋壓差平衡閥技術引數 technical paramete
動態)進口內螺紋壓差平衡閥當系統管網壓差增大，內螺紋動態壓差平衡閥依靠自身高低壓腔壓力變化，使作用於膜片兩側的力重新平衡，同時帶動閥桿運動減小閥門開度，吸收增大的資用壓差，保證被控制側的壓差恆定retz when the pressure difference of the system pipe network increases, the internal thread dynamic pressure difference balancing valve relies on the pressure change of its high and low pressure chambers to rebalance the force acting on both sides of the diaphragm, drive the valve rod to move to reduce the valve opening, absorb the increased pressure difference of the resources, and ensure that the pressure difference on the controlled side is constant.
進口內螺紋壓差平衡閥效能特點∶ performance characteristics
自力式壓差控制，不需要外部動力源，恆定被控壓差 retz self operated differential pressure control, without external power source, constant controlled differential pressure
可現場設定壓差值，可控壓差範圍廣 the pressure difference can be set on site, and the controllable pressure difference range is wide
手輪帶有壓差設定指示，具有關斷功能 the handwheel is provided with a pressure difference setting indication and a shut-off function
壓力測量口，配有三通測量接頭 pressure measuring port with tee measuring connector
進口內螺紋壓差平衡閥選型引數。
尺寸：g1/2"-2" size: g1/2 "-2"
工作溫度：-10~100℃ working temperature: -10 ~ 100 ℃
承壓等級：pn16 pressure bearing grade: pn16
控制精度∶ ±8% control accuracy: ±8%
工作壓差∶≤300kpa maximum working pressure difference: ≤300kpa
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∶內螺紋 connection method: internal thread
零部件材質 component material
閥體：黃銅 valve body: brass
閥座：黃銅 valve seat: brass
閥芯：黃銅 valve core: brass
測量：嘴黃銅 measurement: nozzle brass
閥桿：黃銅 valve stem: brass
彈簧：不鏽鋼 spring: stainless steel
膜片：epdm diaphragm: epdm
手輪：塑料abs handwheel plastic abs
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