GOST R 54791-2011 Gas welding equipment used in welding cutting and allied processes Pressure regulators and pressure regulators with flow-metering devices for manifold systems and.pdf

1、 , 300 (30 )ISO 7291:2010Gas welding equipment Pressure regulators for manifold systems used in welding,cutting and allied processes up to 30 MPa (300 bar)(MOD)ISO 2503:2009Gas welding equipment Pressure regulators and pressure regulators with flow-meteringdevices for gas cylinders used in welding,

2、cutting and allied processesup to 300 bar (30 MPa)(MOD) 547912011 27 2002 . 184- , 1.02004 . 1 - - . . ( . .), (), (, . ) -, 42 364 3 13 2011 . 1035-4 7291:2010 . , , - 30 (300 ) (ISO 7291:2010 Gas weldingequipment Pressure regulators for manifold systems used in welding, cutting and allied processe

3、s up to30 (300 bar) 2503:2009 . - , , - 300 (30 ) (ISO 2503:2009 Gas welding equipment Pressure regulators and pressureregulators with flow-metering devices for gas cylinders used in welding, cutting and allied processes up to300 bar (30 MPa). , . - 5 - , - . () . - , , 2012 , - - II 5479120111 12 1

4、3 14 25 35.1 .35.2 .36 66.1 66.2 66.3 .66.4 76.5 76.6 77 98 .99 9 () .18 () .20 () 21 () - , 22 547912011III 25032009 . - , , 300 (30 ) 72911999 . -, , 300 , - .IV 547912011 , 300 (30 )Gas welding equipment used in welding, cutting and allied processes. Pressure regulators and pressure regulators wi

5、thflow-metering devices for manifold systems and gas cylinders up to 300 bar (30 ) 201301011 -, 30 , , (), - () (2), , , . - 220 (2 ).2 : 5037992 ( 909089) , . - 240588 , , , , -. 2909091 ( 953988) , -, . 12.2.05281 . , - . - - , 1 , , . (), - () . , , - , , .3 :3.1 ( ): -, , - (. .1).1 5479120113.2

6、 ( ): , , , - (. .2). , , - , .3.3 ( ): , , ( -) , .3.4 : , .3.5 : , . , , .3.6 , p2m: - , . .3.7 , Qn: - , ( ).3.8 : , .4 , , 1. 1 p1 , ( - 3)p2 , ( - 3)p2R , R (. 9.5.3.3)p2i , i (. 9.5.5.3)p2m p3 : p3=2p2 + 1 (0,1 Ma)p4 , p5 - 6.6.1.2pRV (.6.4.1)Q1 , ( ),. 3Qn ( ), -2 547912011 1 Qmax QRV R i Tf U 5 5.1 , -, 2909091, 12.2.05281.5.2 5.2.1 - . 9.7.4 . .5.2.2 , - 1,5 , . , - , .5.2.3 5.2.3.1 , - . p1, , ( 15 C), .5.2.3.2 :- ;- ;- .5.2.3.3 .5.2.4 - . - . 0,1 .5.2.5 . - .3 5479120115.2.6 , - , ( ). , . , - .5.2.7 . , - .5.2.8 5.2.8.1 , , - - .5.2.8.2 . . , - .5.2.8.3 , , p2, - , i R.