1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS KS B 8213 50 kPa 500 kPa KS B 8213 :2009 2009 11 24 http:/www.kats.go.krKS B 8213:2009 : ( ) ( ) ( ) : (http:/www.standard.go.kr) ： ： 2009 11 24 2009-0724 ： ： ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS B 8213:2009 50 kPa 500 kPa Pressure regulators
2、and associated safety devices for gas appliancesPressure regulators for inlet pressures above 50 kPa up to and including 500 kPa 1 ( .) , . 50 kPa 500 kPa , . , . . a) b) 2 . . ( ) . KS B 8217, KS B ISO 71, , KS B ISO 2281, , KS B ISO 3419, KS B ISO 23550, KS B ISO 235512, 2： 50 kPa KS C IEC 605341,
3、 1： KS C IEC 605342-3, 2-3： ISO 6708, Pipework componentsDefinition and selection of DN(nominal size) 3 KS B 8213:2009 2 3.1 (pressure regulator) 3.1.1 (pressure regulator) / 3.1.2 (nominal inlet diameter) ISO 6708 DN 3.1.3 (nominal outlet diameter) ISO 6708 DN 3.2 (components) A . 3.2.1 (control me
4、mber) (plug), (ball), (disk), (vane), (gate), (diaphragm) . 3.2.2 (body) 3.2.3 (valve seat) (SSD) (seal) 3.2.4 (seat ring) 3.2.5 (actuator) 3.2.6 (casing of actuator) . , “ (motorization chamber)” . KS B 8213:2009 3 3.2.7 (controller) . , , 3.2.8 (pilot controller) . 3.2.9 (main diaphragm) , 3.2.10
5、(pressure containing parts) (body), (control member), (bonnet), (casing of actuator), (blind flange) , (pipe for process and sensing line) . 3.2.11 (inner metallic partition wall) 3.2.12 (process and sensing line) , . “ ” , “ ” . 3.2.13 (breather line) , / KS B 8213:2009 4 3.2.14 (exhaust line) , (f
6、ixture) 3.2.15 (fixture) SSD(safety shut-off device) 3.3 (safety shut-off device) 3.3.1 (safety shut-off device, SSD) , , 3.3.2 (closure member) 3.3.3 (trip mechanism) , 3.3.4 (actuator) 3.3.5 (relatching device) 3.3.6 (safety shut-off device controller) . (trip pressure) (：) 3.4 (control variables)
7、 3.4.1 (reference values) 3.4.1.1 (pressure) ( ). kPa . KS B 8213:2009 5 3.4.1.1.1 (inlet pressure), p e 3.4.1.1.2 (outlet pressure), p a 3.4.1.1.3 (differential pressure), p 3.4.1.1.4 (motorization pressure), p m 3.4.1.1.5 (motoriation chamber) 3.4.1.1.6 (pilot feeding pressure), p ep 3.4.1.2 (Flow
8、 conditions) 3.4.1.2.1 (normal conditions) 101.3 kPa , P m 0 (273.15 K) , T n 273 K . 3.4.1.2.2 (gas volume) m 3 . 3.4.1.2.3 (volumetric flow rate), Q m 3 /h . 3.4.2 (variables in the controlling process) 3.4.2.1 (controlled variable), X KS B 8213:2009 6 1 . , p e , p a , p 2 “p a ” . 3.4.2.2 (distu
9、rbance variable), Z , . , p e , Q 3.4.2.3 (monitored pressure) , 3.4.2.4 (trip pressure) 3.4.2.5 (upper trip pressure), p o () 3.4.2.6 (lower trip pressure), p u () 3.4.3 (possible values of all variables) 3.4.3.1 (actual value) “i” . 3.4.3.2 (maximum value) , “max” . 3.4.3.3 (minimum value) , KS B
10、8213:2009 7 “min” . 3.4.4 (terms pertinent to the controlled variable) 3.4.4.1 (set point), p as , 1 . 3.4.4.2 (set point range), W h / . 3.4.4.3 (specific set point range), W a 3.4.4.4 (control deviation), X w 3.4.4.5 (regulation change) (%) (X w ) 3.5 (operating features in stable conditions) 3.5.
11、1 (stable conditions) 3.5.2 (performance curve) . , ( 1 ). 3.5.3 (hysteresis band) 1 3.5.4 (family of performance curves) KS B 8213:2009 8 2 1 2 1 (p as, p e) 2 (p as) 3.6 (features pertinent to accuracy) 3.6.1 (accuracy) (%) p ap 11 2 Q Q p e minp ep e maxp aKS B 8213:2009 9 3.6.2 (accuracy class),
12、 AC AC RG . 3.6.3 (inlet pressure range), b pe (P e max p e min ) . 3.6.4 (maximum accuracy flow rate) 1 . ：Q max, pe min ：Q max, pe max p e max p e min ：Q max, pe 2 3 Q max 3 (p as , ) 3.7 (features pertinent to lock-up behaviour) 3.7.1 (lock-up time), t f Q min, pe min Q min, pe Q min, pe max Q ma
13、x, pe min Q max, pe Q max, pe max p e min p e p e max Qp as (1SG/100)p as (1AC/100)p as p as (1AC/100)p a KS B 8213:2009 10 3.7.2 (lock-up pressure), p f , kPa (%) . 3.7.3 (lock-up pressure class), SG (%) . (SG) . 100 as as f p p p SG p f： p as： 3.7.4 (minimum flow rate) 1 . ：Q max, pe min ：Q max, p
14、e max p e max p e min ：Q max,pe 2 3 3.8 (further functional terminology) 3.8.1 (pressures pertinent to design of gas pressureregulator) 3.8.1.1 (component operating pressure), p 3.8.1.2 (maximum allowable pressure), p max 3.8.1.3 (maximum allowable pressure), PS . KS B 8213:2009 11 3.8.1.4 (test pre
15、ssure) 3.8.1.5 (limit pressure), p l 3.8.1.6 (safety factor), S b , S (PS) (p l ) . ：S b ：S 3.8.1.7 (permissible inlet pressure), p e max 3.8.1.8 (permissible outlet pressure), p a max 3.8.1.9 (minimum operating differential pressure), p min 3.8.2 (nominal pressure), PN 3.8.3 (operating temperature
16、range) 4 KS B ISO 23550 4.2 2 . 1 . 5 5.1 KS B ISO 23550 5. . KS B 8213:2009 12 5.2 KS B ISO 23550 5. . 6 6.1 KS B ISO 23550 6.1 . 7.3 . ( ) , DN 10 . , . , , . (slam-shut device) , . . 6.2 6.2.1 (6.2.2) , KS B ISO 23550 6.2 . 6.2.2 6.2.2.1 KS B ISO 23550 6.2.3 . 6.2.2.2 , 70 L/h , . / . , 3 . , . ,
17、 . . 6.2.2.3 KS B 8213:2009 13 (SSD) . , . 6.2.2.4 , 3 . 6.2.2.5 , . . 6.3 6.3.1 6.3.2 6.3.3 KS B ISO 23550 6.3.1, 6.3.3, 6.3.4, 6.3.6 . 6.3.2 6.3.2.1 6.3.2.2 KS B ISO 23550 6.3.3 . 6.3.2.2 (buckling) , . EN 139061 1) 3. . 6.3.3 ( ) EN 682 1) KS B 8217 . 6.4 6.4.1 6.4.2, 6.4.3 6.4.4 KS B ISO 23550 6
18、.4.1, 6.4.4, 6.4.5, 6.4.6 6.4.8 . 6.4.2 1) KS B 8213:2009 14 1 . 6.4.3 , KS B ISO 71 KS B ISO 2281 , 1 . 6.4.4 (50 kPa ) , (90.5) mm , 10 mm . 1 mm . , . 1 DN DN mm 6 1/8 6 2 5 8 1/4 8 6 8 10 3/8 10 10 12 15 1/2 15 14 16 20 3/4 20 18 22 25 1 25 25 28 32 1 1/4 32 30 32 40 1 1/2 40 35 40 50 2 50 42 50
19、 65 2 1/2 65 80 3 80 100 100 125 125 150 150 200 200 250 250 7 7.1 KS B ISO 23550 7.1 . 7.2 7.2.1 (f ) (multiplication factor) , 4 . KS B 8213:2009 15 7.3 7.2.2 , KS B ISO 23550 2 . 7.2.2 f 5 . (205) . 7.3 KS B ISO 23550 7.2.2 , KS B ISO 23550 7.2.1 . (SSD) , (10 kPa 1.1 PS) . (SSD s ) . 7.4 KS B ISO 23550 7.3.4 , KS B ISO 23550 7.3.2, 7.3.3 . 7.5 7.5.1 ( ) , . 7.5.2 7.5.2.1 B.3.4 , 2 . 7.5.2.2 , 3 . B.3.3 . KS B 8213:2009 16 2 AC 5 AC 10 AC 20 5 % a10 % 20 % a 0.1 kPa . (W h ) / (b pe ) . 3
