兩片式氣動球閥two-Pieces pneumatic ball valve 該閥門適用于水,溶劑,酸,蒸汽等一般工作介質,還適用于惡劣的介質中,適用范圍廣。 The valves are suitable for water, solvents, acid, steam and the general working media, also applies to the bad medium, wide application scope. 特點(characteristic): 適用工作溫度為-29℃~150℃,其結構緊湊,力矩小,密封可靠,維修方便,平等的閥體為介質提供了阻力很小,而且易于操作。 Suitable temperature for - 29 ℃~ 150 ℃, its structure is compact, small torque, reliable sealing, convenient maintenance, full equality body provides the medium resistance is small, and easy to operate. 工作原理和結構說明(the working principle and structure) 1. 本閥門主要由閥體,球心,密封件,閥桿等零件組成。 This valve is mainly composed of body, spherical centre, sealing ring ,valve stem and other parts. 2. 本閥門依靠氣動執(zhí)行器,轉動閥桿,使閥桿帶動球心在介質里作旋轉動作,達到調節(jié)流速的目的。 This depend on the pneumatic valve actuator, turn the valve stem, the stem driving the spherical centre spins in the medium for its rotary movement, its reach the purpose of regulating velocity. 主要零件名稱the major parts name | 材質materials | 左閥體the left body | 不銹鋼Stainless steel | 右閥體the right body | 不銹鋼Stainless steel | 閥座valve seat | 聚四氟乙烯PTFE | 閥桿valve stem | 不銹鋼Stainless steel | 球心spherical centre | 不銹鋼Stainless steel | 閥蓋valve cover | 不銹鋼Stainless steel | 填料packing | 聚四氟乙烯PTFE | 設計標準design criteria | GB/T 12237 | 結構長度length of the structure | GB/T 12221 | 閥門試驗valve test | JB/T 9092 | 公稱壓力nominal pressure | PN25 | 執(zhí)行器actuator | 氣動執(zhí)行器pneumatic actuator | 連接方式connection method | 法蘭連接flange connection | 法蘭設計flange design | GB/T9113 | 規(guī)格specification | DN15~150 | |