retz(流量控制閥)靜態平衡閥可應用於空調、供熱及生活熱水系統中，用來平衡末端及環路流量之用。產品可應用於供水或回水管路 the static balance valve (flow control valve) can be used in air conditioning, heating, and domestic hot water systems to balance the end and loop flow. the product can be applied to water supply or return pipelines
進口靜態平衡閥技術引數 technical paramete
流量控制閥)靜態平衡閥可代替截止閥關斷功能，產品攜帶有測量接頭，方便與測量裝置的快速連線，節省除錯時間，具有最大行程鎖定功能，當系統除錯後可將鎖定裝置開啟，方便日後可關閉靜態閥進行管路維護與檢修，結束後可以直接將閥門恢復到設定好的行程處，避免二次除錯retz the static balance valve can replace the shut-off function of the stop valve. the product carries a measuring connector, which is convenient for quick connection with the measuring equipment, s**es debugging time, and has the maximum stroke locking function. when the system is commissioned, the locking device can be opened, which is convenient for closing the static valve for pipeline maintenance and repair in the future. after the completion, the valve can be directly restored to the set maximum stroke to **oid secondary debugging.
進口靜態平衡閥效能特點∶ performance characteristics
y型直流閥體結構，配合準確加工的錐形閥瓣 y-type dc valve body structure, with precisely machined conical valve disc
精確流量控制，通過手輪具有關斷功能 retz precise flow control, with off function through handwheel
數字手輪開度指示，開度鎖定簡單 digital handwheel opening indication, *opening locking
帶流量測量口 with flow measuring port
進口靜態平衡閥選型引數。
規格尺寸：f1-1/4-20" specification and size: f1-1 / 4-20
工作溫度：-10~120℃ working temperature: -10 ~ 120 ℃
公稱壓力：pn16 nominal pressure: pn16
工作介質∶空調冷熱水、乙/丙二醇溶液 working medium: air conditioning cold and hot water, ethylene / propylene glycol solution
連線方式∶法蘭 connection method: flange
零部件材質 component material
閥體：球墨鑄鐵 valve body: ductile iron
閥芯：球墨鑄鐵/不鏽鋼/黃銅 valve core: ductile iron / stainless steel / brass
鎖緊螺釘：黃銅/不鏽鋼 locking screw: brass / stainless steel
閥座密封：ptfe/epdm valve seat seal: ptfe / epdm
閥桿：2cr13/黃銅 valve stem: 2cr13 / brass
鎖定芯杆：2cr13/黃銅 locking core rod: 2cr13 / brass
閥蓋：球墨鑄鐵 bonnet: ductile iron
緊定螺絲：不鏽鋼 set screw: stainless steel
手輪：qt450 handwheel: qt450
測量嘴∶ 黃銅/不鏽鋼 measuring nozzle: brass / stainless steel
靜態平衡閥在開度≥50%時，誤差不得大於±5%；10%≤開度≤50%時，誤差不得大於±10%。故在產品選型時，建議設計流量下閥門開度大於50%為宜，同時為保證現場除錯餘量，閥門盡量設定在75%開度左右 retzwhen the opening of static balance valve is ≥ 50%, the error shall not be greater than ± 5%; when 10% ≤opening ≤ 50%, the error shall not be greater than ± 10%. therefore, during product selection, it is suggested that the valve opening should be greater than 50% under the design flow. meanwhile, in order to ensure the on-site commissioning margin, the valve should be set at about 75% opening as far as possible
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