技術參數 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，使作用于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恒定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.

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%

最大工作壓差∶≤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

連接方式∶內螺紋 Connection method: internal thread

(動態)進口內螺紋壓差平衡閥 性能特點∶ Performance characteristics

自力式壓差控制，不需要外部動力源，恒定被控壓差 RETZ Self operated differential pressure control, without external power source, constant controlled differential pressure

可現場設定壓差值，可控壓差范圍廣  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

零部件材質 Component material

①閥體：黃銅  Valve body: Brass

②閥座：黃銅  Valve seat: Brass

③閥芯：黃銅  Valve core: Brass

④測量：嘴黃銅  Measurement: nozzle brass

⑤閥桿：黃銅  Valve stem: Brass

⑥彈簧：不銹鋼  Spring: stainless steel

⑦膜片：EPDM   Diaphragm: EPDM

⑧手輪：塑料ABS   Handwheel plastic ABS

工作范圍

A.KVmin   B.KVnom   C.KVmax   D.工作范圍△P∶±25%

安裝說明 Installation instructions

內螺紋動態壓差平衡閥可以單獨使用，亦可與靜態平衡閥配合使用。水流方向需與閥體箭頭方向符合一致。安裝之前應當沖洗管路，并建議在前端安裝過濾器。毛細管應連接在供水管路的上方或水平處，但不可位于管路下方，以防被灰塵微粒堵塞，水系統打壓測試之前，必須把毛細信號管安裝連接好并且旋轉阻斷閥。否則壓力過大會導致壓差調節器的損壞 RETZ internal thread dynamic differential pressure balancing valve can be used alone or in combination with static balancing valve. The water flow direction shall be consistent with the arrow direction of the valve body. The pipeline should be flushed before installation, and it is recommended to install a filter at the front end. The capillary shall be connected above or at the level of the water supply pipeline, but not below the pipeline to prevent it from being blocked by dust particles. Before the pressure test of the water system, the capillary signal pipe must be installed and connected and the blocking valve must be rotated. Otherwise, excessive pressure will cause damage to the differential pressure regulator.

動態壓差平衡閥始終安裝于回水管上，當與靜態平衡閥配合使用時，如下圖所示靜態平衡閥安裝與供水管  RETZ dynamic differential pressure balance valve is always installed on the return pipe. When used with the static balance valve, the static balance valve is installed on the water supply pipe as shown in the following figure

①-動態壓差平衡閥 Dynamic differential pressure balancing valve

②-靜態平衡閥 Static balancing valve

③-電動調節閥 Electric control valve