三孔短管夾_three hole short clamp

三孔短管夾_D2型三孔短管夾_D2A型三孔短管夾，其設計標準中材料代號有兩種：R和S。材料代號R表示20號鋼，材料代號S表示Q235B。材料代號為R的三孔短管夾，適用于不高于450°C的環境溫度之下；材料代號為S的三孔短管夾，適用于不高于300°C的環境溫度之下。三孔短管夾由管夾、螺栓、螺母、套管組合而成，實際供貨中，大部分客戶不要求使用套管。訂貨時表示方法（舉例）為：三孔短管夾_D2.133R（管道外徑為133，20號鋼材質）。標號舉例：Dw=273，t=450°C，Pjg=1500kg力，標號為D2.273R；Dw=273，t=265°C，Pjg=4500kg力，標號為D2A.273S。選擇D2型三孔短管夾，還是D2A型三孔短管夾，主要看需要承受的最大力是多少，即參考需要承受的Pmax值為多大（詳見標準設計手冊》。三孔短管夾是西北電力設計院《汽水管道支吊架設計手冊1983年版》中最常見的管部吊架產品之一，廣泛適用于汽水管道中的懸吊裝置，不可或缺，一般與L7環形耳子、L1螺紋吊桿、T2雙板整定彈簧組件，以及根部裝置配合在一起使用，用F1/F2/F3/F4等連接件連接，形成基本管道懸吊裝置。

There are two kinds of material for three-hole short clamp in the design handbook：R and S. Material code name R means 20# carbon steel,S means Q235B carbon three-hole clamp with code R is used the envirment under the temperature of 450゜C,that with S is used under 300゜C -hole clamp is componented of two pieces of clamps,bolts,nuts, supply, most customers do not require the use of casing. When ordering representation (for example): three hole short pipe _D2.133R (outside diameter of a pipe clamp for 133,20 steel material). Label, for example: Dw=273, t=450 DEG C, Pjg=1500kg, label for D2.273R; Dw=273, t=265 DEG C, Pjg=4500kg, label D2 type hole short pipe clamp, or d2a hole short pipe clamp, mainly to see the need to withstand the maximum force what is that reference to the need to withstand Pmax values for much (see standard design manual. Three hole short pipe clip is Northwest Electric Power Design Institute < steam water piping support and hanger design manual 1983 version > in the most common pipe hanger products0ne, widely used in steam water piping in the suspension device, indispensable, general and L7 annular Erzi, L1 thread threaded rod, T2 dual plate tuning spring assembly, and root device with together, F1/F2/F3/F4 connection connector, the basic pipeline suspension device is formed.

D2三孔短管夾的組合方式舉例：G12單孔吊板+T2雙板整定彈簧組件+F2六角扁螺母+L1螺紋吊桿+F2六角扁螺母+L8U形耳子+L4三孔吊板+2×D2三孔短管夾。