용도 도시가스지구정압기 (City Gate Station, Main Station) 도시가스지역정압기 (District Station) 상 공업용대유량전용정압기 ( 빌딩, 공장, 병원, 학교 ) 산업용대유량기구 Governor (Mixer, Boiler, Furnace, Plant Air Service) 특징 고정밀도, 대유량 - Loading Type Pilot 작동방식의특성인 Two Path Control System 채용과 Pilot 증폭효과로대유량조절에도높은정밀도유지 유지보수용이 - 배관에설치된상태로신속한분해점검가능 작동상태확인가능 - Travel Indicator가내장되어있어대략적인사용량확인및작동상태확인가능 소음방지장치내장 - Option 사양으로 Whisper Trim R Cage 장착하면 20dBA 정도의소음감소효과 Fail Close Type 사양 접속구경및방식 접속구경 (Inch) 1, 2 접속방식 Cast Iron Steel NPT ANSI 125FF ANSI 250RF NPT ANSI 150, 300, 600RF, BWE, SWE SEAT RINg SCREwS INTO CAgE BODy FlANgE CAgE SCREwS INTO BODy FlANgE 3, 4, 6, 8 ANSI 125FF ANSI 250RF ANSI 150, 300, 600RF BWE P1507 최고입구압력 구분 최고입구압력, MPa(Bar) Main Valve 2.8 (28) 61LD 1.1 (11) Pilot 61L, 61LE, 61H 2.8 (28) 61HP 4.1 (41) 6350 Series 4.1 (41) 사용온도범위 : -29 ~ 82 재질 : Cast Iron, Steel Actuator Size 별사용최고압력 Actuator Outlet(Control) Pressure Emergency Casing Pressure Type Size MPa Bar MPa Bar 1098 30 40 (std) 70 0.69 0.52 0.35 6.9 5.2 3.5 0.79 0.57 0.45 7.9 5.7 4.5 1098H 30 2.1 21.0 2.81 28.1 14
설정압력범위 설정압력범위, Spring Pilot Type kpa(bar) Part Number 색상 0.7~3 (0.007~0.03) 1C680627222 은색 (Cadmium) 1.7~13.8 (0.017~0.138) 1B886327022 적색 () 61LD 6.9~34 (0.069~0.34) 1J857827022 61L 14~69 (0.14~0.69) 1B886427022 청색 () 61LE 34~100 (0.34~1.0) 1J857927142 갈색 (Brown) 69~140 (0.69~1.4) 1B886527022 녹색 () 61H 69~450 (0.69~4.5) OY0664000A2 녹색줄 ( Stripe) 61HP 240~690 (2.4~6.9) 1D387227022 청색 () 6352 3.5~14 14~69 (0.035~0.14) (0.14~0.69) 14A9672X012 14A9673X012 흑색 (Black) 6353 21~280 241~862 (0.21~2.8) (2.41~8.62) 1E392527022 1K748527202 적색 () 6354L 6354M 6354H 590~1380 1210~1520 1380~2070 (5.9~13.8) (12.1~15.2) (13.8~20.7) 1L346127142 1L346127142 15A9258X012 청색 () 청색 () 녹색 () Y600AM 1~2 1.7~4 3.7~8 8~17 17~31 31~48 (0.01~0.02) (0.017~0.04) (0.037~0.08) (0.08~0.17) (0.17~0.31) (0.31~0.48) 1B653827052 1B653927022 1B537027052 1B537127022 1B537227022 1B537327052 적색 () 회색 (Unpainted) 녹색 () 연청색 (Light ) 흑색 (Black) TRAVEL INDICATOR WITH REMOVABLE PROTECTOR PISTON RING UPPER SEAL MAIN VALVE PLUG W3419 1 DETAIL OF TYPE 1098H ACTUATOR VALVE PLUG SPRING PIPE NIPPLE THAT CONNECTS TO PILOT SIDE TAPPING (NOT SHOWN) BLEED HOLE PORT SEAL CONTROL LINE CONNECTION UNBALANCED VALVE PLUG W3149 1* TYPE 1098 EGR REGULATOR SHOWN WITH TYPE 6351 PILOT 15
최대최소작동차압에따른 Main Spring 선정표 Size, Inch (DN) Spring Part Number and Color Maximum Allowable Differetial Pressure, kpa (Bar) Minimum Differential Pressure Required for Full Stroke, kpa (Bar) Size 30 Actuator Size 40 Actuator Size 70 Actuator 1 (25) 2 (50) 3 (80) 4 (100) 6 (150) 14A9687X012 14A9680X012 14A9679X012 14A6768X012 14A6626X012 14A6627X012 14A6628X012 14A677X012 14A6629X012 14A6630X012 14A6631X012 14A6770X012 14A6632X012 14A6633X012 14A6634X012 `15A2253X012 14A9686X012 14A9685X012 15A2615X012 410 (4.1) 24(0.24) 17(0.17) 6.9(0.069) 860 (8.6) 34(0.34) 28(0.28) 10(0.10) 48(0.48) 34(0.34) 17(0.17) 140 (1.4)... 14(0.14) 6.9(0.069) 410 (4.1) 28(0.28) 21(0.21) 10(0.10) 860 (8.6) 42(0.42) 34(0.34) 14(0.14) 2800(28)or body rating limit, 76(0.76) 69(0.69) 21(0.21) 140 (1.4)... 17(0.17) 6.9(0.069) 410 (4.1) 34(0.34) 28(0.28) 14(0.14) 860 (8.6) 55(0.55) 42(0.42) 17(0.17) 97(0.97) 76(0.76) 28(0.28) 140 (1.4)... 24(0.24) 9(0.09) 410 (4.1) 69(0.69) 34(0.34) 17(0.17) 860 (8.6) 90(0.90) 55(0.55) 21(0.21) 150(1.5) 90(0.90) 34(0.34) 140 (1.4)... 41(0.41) 15(0.15) 410 (4.1) 90(0.90) 66(0.66) 28(0.28) 860 (8.6) 130(1.3) 97(0.97) 42(0.42)... 130(1.3) 55(0.55 16
Natural Gas 작동원리 1098EGR은전단압력을작동의매개물로삼는다. 전단압력은 Pilot를통하여감압되어 Actuator의 Diaphragm에 Loading( 하중 ) 을준다. 후단압력은 Actuator에서 Loading압력에역작용하며동시에 Pilot Spring의힘 + 대기압력과반대방향으로작용 (Two Pass Control) 함으로서응답속도가빠르다. 후단압력이설정압력보다낮을때가스사용량이증가하여후단압력이 Pilot Spring의설정압력보다아래로떨어지면 Pilot Diaphragm에힘이가해져 Pilot Valve Plug는열려추가의 Loading압력을보낸다. 이압력은 Stem을통하여주 Regulator의 Valve Plug를열고후단측으로필요한유량을공급하게된다. 후단압력이설정압력보다높을때후단의요구가충족되면후단압력이증가하게되고이압력은 Pilot Diaphragm과 Actuator Diaphragm에작용한다. Pilot에작용된압력이 Pilot Spring의설정치를넘어서게되면 Pilot Diaphragm을움직여 Pilot Valve Plug를닫으면더이상의 Loading 압력공급이중단되며 Bleed Valve가열리면서 Loading 압력의감소가일어나주 Regulator의 Valve를닫히게한다. Actuator Diaphragm에과다한압력이가해지면 Bleed Orifice (Type 61 Series Pilot) 또는 Bleed Hole(Type 6351 Pilot) 또는 Restriction(Type 6352, 6353, 6354, Series Pilot) 을통하여후단쪽으로빠져나간다. Main Diaphragm을보호하기위하여모든 Pilot들은 Relief Valve를가지고있어서주 Regulator의 Diaphragm양단의차압이 Model 별로약 1~1.7Bar일때 Loading압력은 Relief Valve를통하여 Regulator의후단으로방출된다. 17
유량표 입구압력 kpa (Bar) 설정압력 kpa (Bar) Size (Inch) ( 단위 : NM 3 /H, 비중 0.6 NG) 2 3 4 6 20 (0.2) 2.2 (0.022) 790 1700 2640 5000 40 (0.4) 2.2 (0.022) 1170 2520 3910 7300 20 (0.2) 910 1950 3030 5740 2.2 (0.022) 1990 4290 6700 12160 100 (1.0) 20 (0.2) 1890 4070 6350 11660 40 (0.4) 1730 3720 5790 10770 2.2 (0.022) 3060 6590 10330 18350 200 (2.0) 20 (0.2) 3060 6590 10330 18350 40 (0.4) 3040 6540 10220 18350 100 (1.0) 2680 5770 8980 16650 400 (4.0) 600 (6.0) 100 (1.0) 이하 5090 10960 17190 30520 200 (2.0) 4720 10150 15820 29080 200 (2.0) 이하 7130 15330 24040 42700 400 (4.0) 5040 12770 19850 37000 200 (2.0) 이하 9670 20800 32610 57930 850 (8.5) 400 (4.0) 9360 20140 31430 57210 600 (6.0) 7820 16830 26150 48870 400 (4.0) 이하 13220 28450 44610 79240 1.2 MPa (12) 600 (6.0) 12730 27380 42720 77880 850 (8.5) 10790 23210 36070 67370 600 (6.0) 이하 16270 35010 54900 97500 1.5 MPa (15) 850 (8.5) 15150 32590 50790 93250 1.2 MPa (12) 11570 24880 38610 72800 850 (8.5) 이하 21350 45900 71750 127950 2.0 MPa (20) 1.2 MPa (12) 21330 41990 65410 120480 1.5 MPa (15) 16660 35830 55660 104330 1.2 MPa (12) 이하 29030 62460 98090 174220 2.76 MPa (27.6) 1.5 MPa (15) 27670 59520 92820 169660 2.0 MPa (20) 23620 50800 78950 147510 18
유량계수 Piping Style Line Size Equals Size 2 : 1 Line Size to Size Size Standard Cage Whisper Trim Cage Standard Cage Whisper Trim Cage Inch Cg Cv Cg Cg Cv Cg Regula Wide Regula Wide C1 Regula Wide C1 Regula Wide Regula Wide C1 Regula Wide C1 ting Open ting Open ting Open ting Open ting Open ting Open 1 600 632 16.8 17.7 35.7 576 607 34.5 568 598 17.2 18.1 33.0 529 557 34.0 2 2280 2400 63.3 66.7 36.0 1970 2080 36.0 2050 2160 59.6 62.8 34.4 1830 1930 35.0 3 4630 4880 132 138 35.1 3760 3960 35.0 4410 4650 128 135 34.4 3630 3830 34.2 4 7320 7710 202 213 36.2 6280 6610 34.8 6940 7310 198 209 35.0 6020 6340 35.2 6 12900 13600 397 418 32.5 9450 9950 32.0 12100 12800 381 404 31.7 9240 9730 31.7 8 18480 19450 578 608 32.0 10660 11220 35.0 17370 18280 543 571 32.0 10020 10550 35.0 DIMENSIONS Size Inch Screwed Cast Iron, or Screwed or 600 RF Steel A 125FF Cast Iron, or 150RF Steel 250RF Cast Iron, or 300RF Steel D G R Cast Iron Z Steel In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm In. mm 1 8.25 210 7.25 184 7.75 197 3.88 98 8.62 219 4.06 103 12.00 305 13.75 349 3.00 76 2 11.25 286 10.00 254 10.50 267 4.56 116 9.12 232 4.06 103 13.31 338 15.06 383 3.12 79 3 13.25 337 11.75 298 12.50 318 5.31 135 11.31 287 5.06 129 16.50 419 18.25 464 3.88 98 4 15.50 394 13.88 352 14.50 368 6.56 167 12.69 322 5.06 129 19.12 486 21.12 536 5.12 130 Bulletin 71.2: 6 20.00 508 17.75 451 18.62 473 8.06 205 13.62 346 8.00 203 20.25 514 23.25 591 6.62 168 Actuator C. DIA E H With Pilot Spring Case Vent M AR Without Pilot Spring Case Vent Type Size In. mm In. mm In. mm In. mm In. mm 1098 30 11.38 289 5.69 144 1098H 30 11.38 289 6.06 154 1098 40 13.12 333 5.75 146 7.88 200 9.50 241 9.31 49.3 237 D E 1098 70 21.12 537 7.44 189 14.19 360 15.81 402 15.62 397 A A/2 R G H C 1.94 / A AR (ACTUATOR REMOVAL CLEARANCE) A/2 R M G (REMOVAL CLEARANCE FOR TRIM PACKAGE) Z 1.94 / 49.3 C D H E IN. / mm B1113_1_B AR (ACTUATOR REMOVAL CLEARANCE) Figure 8. Type Dimensions 20 19