用途
Purpose
本產(chǎn)品廣泛應用于自來水、污水、建筑、化工等行業(yè)的給排水系統(tǒng)中。一般作為啟閉設備使用。
This product is used for the water supply and drain-out system in tap water, sewage, chemical etc.trades and usully as an open-closedevice.
特點
Characteristics
單/雙偏心結構，密封嚴密，使用壽命長。
Single/double eccentric structure,strictly sealed, long durable.
執(zhí)行標準
Execution standard
設計制造標準 Design and manufacturing standards:GB12238-2008
法蘭連接尺寸Flange connection size : GB/T 9113.1、GB/T 17241.6
結構長度Structure length:GB/T 12221
壓力試驗Pressure test : GB/T13927
性能規(guī)范
Performance specification
公稱壓力Nominal pressure: PN10、PN16
公稱通徑Nominal diameter:DN5O-2000mm
強度試驗 Strength test:1.5MPa、2.4MPa
密封試驗Seal test:1.1MPa、1.76MPa
適用溫度Applicable temperature:≤120c
適用介質Applicable medium:水、低溫蒸汽、油品、煤氣、海水、污水等Water, low temperature steam, oi, gas, water, sewage, etc
主要零件材料
Main parts materials
閥體—灰鑄鐵/球墨鑄鐵/鑄鋼
Body-gray cast iron/ductile iron/cast steel
閥板—灰鑄鐵/球墨鑄鐵/鑄鋼
Disc—gray cast iron/ductile iron/cast steel
閥桿—不銹鋼
Stem-Stainless steel
密封圈一丁腈橡膠/三元乙丙/氟橡膠
Seal ring ——NBR/EPDMfluorine rubber
填料─柔性石墨型橡膠墊
Packing-Flexible graphite/v type rubber mat