| 所属系列： | 全启式安全阀 |
| 名称： | A48SC磅级弹簧全启式安全阀 |
| 型号： | A48SC |
| 检索关键字： | A48SC磅级弹簧全启式安全阀 |
磅级弹簧全启式安全阀
【A48sC主要性能规范】
| 公称压力 | PN(Lb) | 150 | 300 | 600 |
| 壳体强度 | Ps(MPa) | 3.0 | 7.5 | 15 |
| 整定压力 | Pk(MPa) | 0.1-2 | 1.6-5 | 3.2-10 |
| 密封压力 | Pm(MPa) | 90%Pk |
| 回座压力 | Ph(MPa) | ≥90%Pk |
| 排放压力 | Pp(MPa) | ≤1.1Pk |
| 开启高度 | H (mm) | ≥1/4 d0 |
| 适用温度 | C | ≤420℃ |
| I | ≤500℃ |
| V | ≤540℃ |
| 适用介质 | 蒸汽 |
【主喉部直径代号】
| 代号 | 直径 | 代号 | 直径 |
| D | 10 | L | 50 |
| E | 13 | M | 55 |
| F | 16 | N | 60 |
| G | 20.5 | P | 72 |
| H | 26 | Q | 96 |
| J | 33 | R | 115 |
| K | 40 | T | 148 |
【结构示意图】
【A48sC连接尺寸参数】
| A48SC150、A48SC150I、A48SC150V |
| 公称压力 | 尺 寸 (mm) |
| do | D | D1 | D2 | b | t | Z-φd | DN' | D' | D1' | D2' | b' | t' | Z-φd' | L | L1 | H |
| 1/2"×3/4" | D | 89 | 60.5 | 35 | 12 | 5 | 4-15 | 20 | 98 | 70 | 43 | 14 | 1.6 | 4-15 | 90 | 90 | 290 |
| 3/4"×1" | D | 98 | 70 | 43 | 14 | 5 | 4-15 | 25 | 108 | 79.5 | 51 | 15 | 1.6 | 4-15 | 96 | 92 | 310 |
| 1"×11/2" | D | 108 | 79.5 | 51 | 15 | 5 | 4-15 | 40 | 127 | 98.5 | 73 | 18 | 1.6 | 4-15 | 115 | 105 | 320 |
| 1"×2" | D | 108 | 79.5 | 51 | 15 | 5 | 4-15 | 50 | 152 | 120.5 | 92 | 18 | 1.6 | 4-19 | 115 | 105 | 320 |
| 11/2"×2" | G | 127 | 98.5 | 73 | 18 | 5 | 4-15 | 50 | 152 | 120.5 | 92 | 18 | 1.6 | 4-19 | 121 | 124 | 350 |
| 11/2"×21/2" | G | 127 | 98.5 | 73 | 18 | 5 | 4-15 | 65 | 178 | 139.5 | 105 | 20 | 1.6 | 4-19 | 121 | 124 | 360 |
| 11/2"×3" | G | 127 | 98.5 | 73 | 18 | 5 | 4-15 | 80 | 190 | 152.5 | 127 | 22 | 1.6 | 4-19 | 124 | 130 | 360 |
| 2"×21/2" | H | 152 | 120.5 | 92 | 18 | 5 | 4-19 | 65 | 178 | 139.5 | 105 | 20 | 1.6 | 4-19 | 124 | 130 | 380 |
| 2"×3" | J | 152 | 120.5 | 92 | 18 | 5 | 4-19 | 80 | 190 | 152.5 | 127 | 22 | 1.6 | 4-19 | 124 | 130 | 380 |
| 21/2"×4 | J | 178 | 139.5 | 105 | 20 | 5 | 4-19 | 100 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | 143 | 137 | 380 |
| 3"×4 | L | 190 | 152.5 | 127 | 22 | 5 | 4-19 | 100 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | 162 | 156 | 480 |
| 4"×6" | N | 229 | 190.5 | 157 | 24 | 10 | 8-19 | 150 | 279 | 241.5 | 216 | 26 | 1.6 | 8-22 | 210 | 197 | 540 |
| 6"×8" | P | 279 | 241.5 | 216 | 26 | 10 | 8-22 | 200 | 343 | 298.5 | 270 | 29 | 1.6 | 8-22 | 241 | 240 | 760 |
| 8"×10" | R | 343 | 298.5 | 270 | 29 | 10 | 8-22 | 250 | 406 | 362 | 324 | 31 | 1.6 | 12-25 | 279 | 276 | 830 |
| 12"×14" | T | 483 | 432 | 381 | 32 | 10 | 12-25 | 350 | 533 | 476 | 413 | 35 | 1.6 | 12-29 | 370 | 360 | 890 |
【A48sC型磅级弹簧全启式安全阀】
| A48SC300、A48SC300I、A48SC300V |
| 公称压力 | 尺 寸 (mm) |
| do | D | D1 | D2 | b | t | Z-φd | DN' | D' | D1' | D2' | b' | t' | Z-φd' | L | L1 | H |
| 1/2"×3/4" | D | 95 | 66.5 | 35 | 15 | 5 | 4-15 | 20 | 98 | 70 | 43 | 14 | 1.6 | 4-15 | 90 | 90 | 380 |
| 3/4"×1" | D | 117 | 82.5 | 43 | 16 | 5 | 4-19 | 25 | 108 | 79.5 | 51 | 15 | 1.6 | 4-15 | 96 | 92 | 390 |
| 1"×11/2" | D | 124 | 89 | 51 | 18 | 5 | 4-19 | 40 | 127 | 98.5 | 73 | 18 | 1.6 | 4-15 | 115 | 105 | 395 |
| 1"×2" | D | 124 | 89 | 51 | 18 | 5 | 4-19 | 50 | 152 | 120.5 | 92 | 18 | 1.6 | 4-19 | 115 | 105 | 395 |
| 11/2"×2" | F | 156 | 114.5 | 73 | 20 | 5 | 4-22 | 50 | 152 | 120.5 | 92 | 18 | 1.6 | 4-19 | 121 | 124 | 420 |
| 11/2"×21/2" | F | 156 | 114.5 | 73 | 20 | 5 | 4-22 | 65 | 178 | 139.5 | 105 | 20 | 1.6 | 4-19 | 121 | 124 | 420 |
| 11/2"×3" | F | 156 | 114.5 | 73 | 20 | 5 | 4-22 | 80 | 190 | 152.5 | 127 | 22 | 1.6 | 4-19 | 124 | 130 | 430 |
| 2"×21/2" | H | 165 | 127 | 92 | 22 | 5 | 8-19 | 65 | 178 | 139.5 | 105 | 20 | 1.6 | 4-19 | 124 | 130 | 460 |
| 2"×3" | H | 165 | 127 | 92 | 22 | 5 | 8-19 | 80 | 190 | 152.5 | 127 | 22 | 1.6 | 4-19 | 124 | 130 | 460 |
| 21/2"×4 | J | 190 | 149.5 | 105 | 24 | 5 | 8-22 | 100 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | 143 | 137 | 480 |
| 3"×4 | L | 210 | 168 | 127 | 28 | 5 | 8-22 | 100 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | 162 | 156 | 430 |
| 4"×6" | N | 254 | 200 | 157 | 32 | 10 | 8-22 | 150 | 279 | 241.5 | 216 | 26 | 1.6 | 8-22 | 210 | 197 | 610 |
| 6"×8" | P | 318 | 270 | 216 | 38 | 10 | 12-22 | 200 | 343 | 298.5 | 270 | 29 | 1.6 | 8-22 | 241 | 240 | 780 |
| 8"×10" | Q | 381 | 330 | 270 | 42 | 10 | 12-25 | 250 | 406 | 362 | 324 | 31 | 1.6 | 12-25 | 279 | 276 | 840 |
注：出口法兰为150Lb。
| A48SC600、A48SC600I、A48SC600V |
| 公称压力 | 尺 寸 (mm) |
| do | D | D1 | D2 | b | t | Z-φd | DN' | D' | D1' | D2' | b' | t' | Z-φd' | L | L1 | H |
| 3/4"×1" | D | 117 | 82.5 | 43 | 16 | 7 | 4-19 | 25 | 108 | 79.5 | 51 | 15 | 1.6 | 4-15 | 96 | 92 | 400 |
| 1"×2" | D | 124 | 89 | 51 | 19 | 7 | 4-19 | 50 | 152 | 120.5 | 92 | 18 | 1.6 | 4-19 | 115 | 105 | 420 |
| 11/2"×2" | F | 156 | 114.5 | 73 | 22 | 7 | 4-22 | 50 | 152 | 120.5 | 92 | 18 | 1.6 | 4-19 | 152 | 124 | 440 |
| 11/2"×21/2" | F | 156 | 114.5 | 73 | 22 | 7 | 4-22 | 65 | 178 | 139.5 | 105 | 20 | 1.6 | 4-19 | 152 | 124 | 440 |
| 11/2"×3" | F | 156 | 114.5 | 73 | 22 | 7 | 4-22 | 80 | 190 | 152.5 | 127 | 22 | 1.6 | 4-19 | 152 | 124 | 450 |
| 2"×21/2" | H | 165 | 127 | 92 | 26 | 7 | 8-19 | 65 | 178 | 139.5 | 105 | 20 | 1.6 | 4-19 | 162 | 154 | 480 |
| 2"×3" | H | 165 | 127 | 92 | 26 | 7 | 8-19 | 80 | 190 | 152.5 | 127 | 22 | 1.6 | 4-19 | 162 | 154 | 480 |
| 21/2"×4 | H | 190 | 149.5 | 100 | 29 | 7 | 8-22 | 100 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | 143 | 165 | 490 |
| 3"×4 | K | 210 | 168 | 127 | 32 | 10 | 8-22 | 100 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | 162 | 155 | 540 |
| 4"×6" | N | 273 | 215.9 | 157 | 38 | 10 | 8-25 | 150 | 279 | 241.5 | 216 | 26 | 1.6 | 8-22 | 210 | 200 | 620 |
| 6"×8" | R | 356 | 292 | 216 | 46 | 10 | 12-29 | 200 | 343 | 298.5 | 270 | 29 | 1.6 | 8-22 | 241 | 240 | 790 |
注：出口法兰为150Lb。
| A48SC900、A48SC900I、A48SC900V |
| 公称压力 | 尺 寸 (mm) |
| do | D | D1 | D2 | b | t | Z-φd | DN' | D' | D1' | D2' | b' | t' | Z-φd' | L | L1 | H |
| 11/2"×2" | F | 178 | 123.8 | 73 | 32 | 10 | 4-29 | 50 | 152 | 120.5 | 92 | 18 | 1.6 | 4-19 | 165 | 124 | 440 |
| 2"×3" | H | 216 | 165.1 | 92 | 38 | 10 | 8-26 | 80 | 190 | 152.5 | 127 | 22 | 1.6 | 4-19 | 162 | 154 | 480 |
| 3"×4 | J | 241 | 190.5 | 127 | 38 | 10 | 8-25 | 100 | 229 | 190.5 | 157 | 24 | 1.6 | 8-19 | 181 | 184 | 550 |
| 4"×6" | K | 292 | 234.9 | 157 | 44 | 12 | 8-32 | 150 | 279 | 241.5 | 216 | 26 | 1.6 | 8-22 | 222 | 197 | 630 |
注：出口法兰为150Lb。
| A48SC1500、A48SC1500I、A48SC1500V |
| 公称压力 | 尺 寸 (mm) |
| do | D | D1 | D2 | b | t | Z-φd | DN' | D' | D1' | D2' | b' | t' | Z-φd' | L | L1 | H |
| 1"×11/2" | D | 149 | 101.6 | 51 | 25 | 15 | 4-25 | 40 | 156 | 114.5 | 73 | 20 | 1.6 | 4-22 | 125 | 125 | 420 |
| 11/2"×21/2" | E | 178 | 123.8 | 73 | 32 | 14 | 4-28 | 40 | 156 | 114.5 | 73 | 20 | 1.6 | 4-22 | 150 | 194 | 450 |
| 11/2"×2" | E | 178 | 123.8 | 73 | 32 | 15 | 4-18 | 50 | 165 | 127 | 92 | 22 | 1.6 | 8-19 | 150 | 194 | 450 |
| 11/2"×3" | E | 178 | 123.8 | 73 | 41 | 7 | 4-29 | 80 | 210 | 268.5 | 127 | 31 | 1.6 | 8-22 | 155 | 254 | 450 |
注：出口法兰为300Lb。
| A48SC2500、A48SC2500V |
| 公称压力 | 尺 寸 (mm) |
| do | D | D1 | D2 | b | t | Z-φd | DN' | D' | D1' | D2' | b' | t' | Z-φd' | L | L1 | H |
| 11/2"×21/2" | F | 205 | 146 | 73 | 45 | 7 | 4-32 | 65 | 190 | 149 | 105 | 27 | 1.6 | 8-22 | 165 | 140 | 670 |
注：出口法兰为300Lb。三、订货须知
1、订货前未选定型号，请您提供相应的技术参数，如：公称通径、介质种类、工作压力、额定电压、连接方式、安装 方式、介质温度、环境温度、阀体材质及特殊功能要求(包括： 常开或常闭、信号反馈止回功能、手动装置、介质粘度及腐蚀性)；我们专业销售工程师会及时与您沟通落实相应的型号。
2、已由设计院所或单位部门选定我公司产品型号的，按指定型号与我公司销售中心订购同时也请提供具体的技术参数。
3、使用工况非常重要或管路系统比较复杂时，请您务必提供管路安装示意图及详细参数，由双方工程师共同审核把关。
