positive cut-off 中文意思是什麼
positive cut-off
解釋
完全截水墻-
Xh rubber slowly - closing cut - off vavle is a new water supply and drainage vavle with full rubber structure, duck - mouthed appearance and functions or positive flow - in and reserve cut - off. according to thrust analysis and calculation as well as different operation mechanism and different rubber products by special processing. all will be open at weak hydraulic pressure is higher, the vavle gate will open more greatly and the water flow is greater. at reserve operation, the vavle gate closes naturally and seals tightly cut - off vavle ; the back pressure is higher, the vavle gate closes more tightly and the seal effect is better. it is used widely in various drainage exit to prevent from pouring backwards and flowing backwards in city planning, water conservancy and sewage disposal etc. it is the ideal productto replace flap vavle
Xf型橡膠緩閉逆止閥是一種全橡膠結構外形呈「鴨嘴狀」 ，具有「正向流入反向逆止」功能的新型給排水閥門產品。它根據受力分析和受力計算，針對不同的工況，採用不同的設計機理，選用不同的橡膠配方，並按特殊工藝製作而成。正向工作時，水由進水口流入，微小的水壓，便能打開閥門，水壓越大，閥門開啟越大，水流量越大。 -
Accessories of multi - spindle horizontal automatic lathes. positive post from side cut - off. dimensions
臥式多軸自動車床輔具.單側切斷正刀夾.尺寸 -
Function of three valve units is take signal from lead pressure point introduce the positive - negative pressure measuring container of transmitter, to realize on or off between lead pressure point and measuring container, and on off between positive and negative pressure container, also can use as differential pressure balance check zero and when remove transmitter as cut - off valve
三閥組的作用是從引壓點將信號引入變送器的正負壓測量容室，實現引壓點與測量容室之間接通或斷開，以及正負壓測量容室之間接通或斷開，亦可作為差壓平衡檢測零點用和卸變送器時作截止閥用。
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