The aluminum elbow
山东群英会怎么玩Aluminum elbow is an important member of aluminum pipe fittings。 It has the standard of technical specification which it should follow, mainly including national standard, German standard, daily standard, American standard and so on。
Machinery standards: jb81-59 jb86-59 JB/t79-94 JB/t86-94 JB/t74-1994
Pressure vessel specification: jb1157-82 jb1160-82 jb4700-2000 jb4707-2000 B16.47 A/B B16.39 B16.48.
山东群英会怎么玩National standard: GB/t9112-2000 GB9113 1-2000 GB9123? 4-2000。
American standard: ANSI B16.5 Class150 300 600 900 1500 WN SO BL LJ SW
Daily standard: JIS 5K 10K 10K 16K 20K PL SO BL WN TH SW
D: din 2573 2572 2632 2633 2543 2634 2545 PL SO WN BL TH
Specifications: hg5010-52 hg5028-58 hgj4-91 hgj65-91 hg20592-97 series, hg20615-97 series
Notes for daily use of aluminum elbow:
1, aluminum elbow, long-term storage should be regularly check, often to the leakage of machining surface must be clean, remove dirt, neatly stored in indoor and ventilated dry place, do not heap or in open air. Always keep the aluminum elbow dry and ventilated, keep the device clean and tidy, and keep it in proper storage.
山东群英会怎么玩2, before installation, must be carefully check the aluminum elbow each standard, size is in line with the use requirement, eliminate the defects caused by the transportation process, and eliminate the dirt, aluminum elbow ready to before the installation, everything is ready.
3。 When installed, the aluminum elbow can be installed directly on the tube by means of connection mode, and installed according to the location used。 In general, it can be installed in any position of the pipe, but it should be easy to operate and repair。 Note that the flow of the aluminum elbow should be at the top of the longitudinal disc, and the aluminum elbow can only be installed horizontally。 The aluminum elbow should pay attention to the seal during installation to prevent leakage and affect the normal operation of the pipeline。
4. When the ball valve, globe valve and gate valve are used, only full or closed, no regulating flow is allowed, so as to avoid erosion and accelerated wear. The gate valve and the upper screw stop valve have a backsealing device, and the hand wheel is in the highest position to tighten, which can prevent the leakage of the medium from the filling. Control scope: aluminum elbow with a standard (DN10-6), 3 a/DF standard, standard (1/2-6), (12.7-152.4 Ф Ф) for production, production quality and standards of different aluminum elbow, used in different fields, show different use value.