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DG시리즈 컨트롤밸브(Cage Retained Trim Control Valve)는 유체의 온도. 압력. 수위 등을 조절하는 목적으로 사용되는 밸브로서, 압력차가 큰 어려운 사용조건 아래서도 원활한 작동이 가능하도록 밸런스 타입의 플러그 구조로 설계되었다. 이종류의 컨트롤 밸브는 주로 큰 용량 (규격 25∼400 ㎜, 유량계수 20∼2800)이 필요할 경우 사용되며, 선박의 경우 주로 스팀계통의 압력 조절 또는 덤핑용으로 많이 사용된다.

DG 시리즈 컨트롤 밸브에는 캐비테이션 또는 소음을 줄이기 위한 특수 케이지의 사용이 가능하며, 유체흐름의 특성도 케이지 포트의 모양에 따라 달라진다.




Valve Body Type Single seated globe body with cage retaindetrim
Pressure Rating ANSI 125 ∼ 2500 or JIS 5∼63 K
Valve Size, inch(mm) 1“∼16“ (25∼400)
Temperture Range PTFE V-ring : -20∼460 °F (-29∼238 ℃)
Laminated Graphite : -320∼800 °F (-195∼427 ℃)
Body & Bonnet Material ASTM A 126 CL.B (FC20)
ASTM A126 Gr. WCB (SCPH2)
ASTM A536 Gr. 65-45-12 (FCD45)
ASTM B584 F C905 or C836 (BC3 or BC6)
ASTM A351 Gr. CF8 or CF8M (SCS13 or SCS14 )
Flow Coefficient (Rated Cv) 18 ~ 1200
Flow Characteristics Parabolic / Equal Percentage / Linear / Quick Opening
Leakage Class ANSI IV, V, VI
Rangeability 30:1∼50:1
Actuator Size, in² 35 / 55 / 85 / 135 / 180
Actuator Action Direct (air to close) / Reverse (air to open)
Spring Range 3∼15 psi (0.2∼1.0 ㎏/㎠) / 6∼30 psi (0.4∼2.0 ㎏/㎠)

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EQ Anti Cavitation Linear
Quick Opening Parabolic Noise Reducing Note : Anti-Cavitation and Noise Reducing linear characteristics.


TRIM MATERIAL
Plug Cage Seat Limits
°F °C

316 SST A351 CF8 M 316 SST -300~400 -184~204
316 SST / Stellite A351 CF8 M 316 SST / Stellite -20~800 -29~427

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BODY SIZE inch (mm) TRIM SIZE inch (mm) CHARACTERISTIC VALVE OPENING - % TOTAL TRAVEL
10 20 30 40 50 60 70 80 90 100
1 (25) 1 (25.4) Equal Percentage 0.31 0.58 1.25 2.4 4.6 7.8 12 15.1 17.1 18
Linear 0.4 1.1 2.5 5.2 8.2 11.1 14.2 16.5 18.1 19
(40) (38.1) Equal Percentage 0.4 0.78 2.1 4.6 7.8 14 20.7 28.132.136
Linear 0.9 3.3 7.5 13.1 19.8 26.9 33.4 36.8 40.1 42
2 (50) 2 (50.8) Equal Percentage 0.622.2 4.7 9.3 15.2 25.4 38.6 52.6 57.5 62
Linear 1.5 4.7 10.8 19.8 30.2 40.8 49.5 56 60.8 65
(65) (63.5) Equal Percentage 0.813.1 6.4 13.1 21.8 36.1 56 76.1 83.1 90
Linear 2.1 6.7 15.5 28.1 43.8 58.2 71.2 81.1 87.2 93
3 (80) 3 (76.2) Equal Percentage 0.92 3.5 7.8 15.9 28.5 47.871.5 95.1 110 125
Linear 3.5 9 21.1 40.5 60.1 80.8 96.4 108 118 127
4 (100) 4 (101.6) Equal Percentage 2.9 10.5 21.3 36.2 55.2 82.1 125 166 190 205
Linear 9.1 22 45.1 72.3 99.2 126 152 176 193 206
5 (125) 5 (127) Equal Percentage 4.4 14.2 29.2 50.5 76.1 113 173 232 261 285
Linear 12.7 30.7 63.5 101 138 177 215 245 270 288
6 (150) 6 (152.4) Equal Percentage 7.8 22.5 46.1 80.5 124 189 280 371 410 435
Linear 22 61 115 170 223 278 332 381 413 439
8 (200) 8 (203.2) Equal Percentage 18.5 44.6 88.1 145 225 347 481 640 723 760
Linear 54.6 124 221 624 419 515 611 696 743 781
10 (250) 10 (254) Equal Percentage 20.6 55.8 110 181 281 434 601 800 904 950
Linear 68.5 155.6 277 407 526 646 767 873 932 980
12 (300) 12 (304.8) Equal Percentage 26.1 70.4 139 229 355 548 759 1011 1142 1200
Linear 87.4 198.5 354 519 671 824 978 1114 1189 1250
14 (350) 14 (355.6) Equal Percentage 47.85 129.07 254.8 419.8 650.8 1005 1392 1854 2094 2200
Linear 157.32 357.3 637.2 934.2 1208 1483 1760 2005 2140 2250
16 (400) 16 (406.4) Equal Percentage 60.9 164.27 324.3 534.3 828.3 1279 1771 2359 2665 2800
Linear 199.27 452.58 807.1 1183 1530 1879 2230 2540 2711 2850



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VALVE
 inches (mm)
VALVE
SIZE
L (FLANGED) H1 WEIGHT lb(kg)
ANSI150 ANSI300 ANSI600
1 (25) 7.25 (184) 7.75 (197) 8.25 (210) 4.92 (125) 25 (11.4)
(40) 8.75 (222) 9.25 (235) 9.88 (251) 5.20 (132) 46 (20.1)
2 (50) 10.00 (254) 10.50 (267) 11.25 (286) 6.34 (161) 65 (29.5)
(65) 10.88 (276) 11.50 (292) 12.25 (311) 6.93 (176) 104 (47.3)
3 (80) 11.75 (298) 12.50 (318) 13.25 (337) 7.87 (200) 121 (54.9)
4 (100) 13.88 (352) 14.50 (368) 15.50 (394) 9.57 (243) 165 (75)
5 (125) 15.87 (403) 16.73 (425) 18.00 (457) 10.12 (257) 210 (98)
6 (150) 17.75 (451) 18.62 (473) 20.00 (508) 10.75 (273) 321 (146)
8 (200) 21.38 (543) 22.38 (568) 24.00 (610) 12.24 (311) 510 (231.8)
10 (250) 26.50 (673) 27.88 (708) 29.62 (752) 14.33 (364) 760 (345.5)
12 (300) 29.00 (737) 30.50 (775) 32.25 (819) 16.77 (426) 1150 (522.7)
14 (350) 35.00 (889) 36.50 (927) 38.25 (972) 17.72 (450) 1132.5 (514.8)
16 (400) 40.00 (1016) 41.62 (1057) 43.62 (1108) 19.53 (496) 1740 (791.0)

ACTUATOR
 inches (mm)
ACTUATOR SIZE, in² D H H-1 WEIGHT lb(kg)
Direct 35 9.65 (345) 12.48 (317) 19.09 (485) 28 (12.7)
55 11.97 (304) 15.75 (400) 25.39 (645) 52 (23.6)
85 14.76 (375) 20.79 (528) 30.24 (768) 102 (46.3)
135 18.00 (457) 24.41 (620) 35.83 (910) 189 (85.8)
180 20.63 (524) 27.64 (702) 41.6 (1056) 368 (167.3)
Reverse 35 9.65(245) 14.76(376) 20.63(524) 32(14.5)
55 11.97 (304) 18.98 (482) 26.34 (669) 61 (27.7)
85 14.76 (375) 24.80 (630) 33.27 (845) 123 (55.9)
135 18.00 (457) 28.40 (722) 38.9 (987) 203 (92.4)
180 20.63 (524) 33.86 (860) 45.2 (1148) 390 (177.3)
Notes
1. JIS, DIN and BS are also available. For all other standards please contact us.
2. Weights are approximate and applied to ANSI 300.


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