产品时间：2016-04-20
dz41y美标低温闸阀制造标准：中国gb、机械部jb、化工标准hg、美标api、ansi、德标din、日本jis、jpi、英标bs生产。阀体材质：铜、铸铁、铸钢、碳钢、wcb、wc6、wc9、20#、25#、锻钢、a105、f11、f22、不锈钢、304、304l、316、316l、铬钼钢、低温钢、钛合金钢等。
dz41y美标低温闸阀适用标准
钢制闸阀，api600/api 6d
钢制闸阀，iso 10434/iso 14313
温度和压力，asme b16.34
结构长度，asme b 16.10
端法兰， asme b 16.5
对焊端，asme b 16.25
试验标准，api 598/api 6d
dz41y美标低温闸阀设计说明
栓接阀盖
全通型
明杆
刚性或弹性闸板
可更换阀座
锻造t型头阀杆
升降式或非升降式手轮
法兰或对焊端
可安装伞齿轮
标准材料规范
| no. | part name | astm material | |||||||
| carbon steel | 2.5ni | 3.5ni | 304 type | 316type | 304l type | 316ltype | 20 alloy | ||
| 1 | body | a352lcb | a352lc2 | a352 lc3 | a351 cf8 | a351cf8m | a351cf3 | a351cf3m | a351 cn7m |
| 2 | bonnet | a352lcb | a352lc2 | a352 lc3 | a351 cf8 | a351cf8m | a351cf3 | a351cf3m | a351 cn7m |
| 3 | wedge | lcb+304 "1 | lcb+304 "1 | lcb+304 "1 | a351 cf8 | a351cf8m | a351cf3 | a351cf3m | a351 cn7m |
| 4 | stem | a182 f304 | a182 f304 | a182 f304 | a182 f304 | a182 f316 | a182 f304l | a182 f316l | 20-alloy |
| 5 | seat ring | a182+f304 "1 | a182+f304*1 | a182+f304*1 | na | na | |||
| 6 | back seat | a276 304 | a276 304 | a276 304 | na | na | |||
| 7a | bonnet gasket | 304+ graphite | 304+ graphite | 304+ graphite | 304+ graphite | 316+ graphite | 304l+ graphite | 316l+ graphite | 316+ graphite |
| 7b | ring gasket | soft steel | a182 f304 | a182 f304 | a182 f304 | a182 f316 | a182 f304l | a182 f316l | 20-alloy |
| 8 | bonnet bolt | a193 l7 | a193 l7 | a193 l7 | a193 b8 | a193 | a193 b8 | a193 b8m | a193 b8m |
| 9 | bonnet nut | a194 4 | a194 4 | a194 4 | a19 4 8 | a194 8m | a194 8 | a194 8m | a194 8m |
| 10 | packing | graphite | graphite | graphite | graphite *2 | graphite *2 | graphite *2 | graphite *2 | graphite *2 |
| 11 | gland | a276 410 | a276 410 | a276 410 | a276 304 | a276 316 | a276 304l | a276 316l | 20-alloy |
| 12 | gland flange | a352lcb | a352lc2 | a352 lc3 | a351 cf8 | a351 cf8 | a351 cf8 | a351 cf8 | a351 cf8 |
| 13 | eyebolt | a193 l7 | a193 l7 | a193 l7 | a193 b8 | a193 b8 | a193 b8 | a193 b8 | a193 b8 |
| 14 | eyebolt nut | a194 4 | a194 4 | a194 4 | a194 8 | a194 8 | a194 8 | a194 8 | a194 8 |
| 15 | eyebolt pin | a276 410 | a276 410 | a276 410 | a276 304 | a276 304 | a276 304 | a276 304 | a276 304 |
| 16 | greas fitting | commercial | commercial | commercial | commercial | commercial | |||
| 17 | stem nut | bronze | bronze | bronze | bronze | bronze | |||
| 18 | jam nut | carbon steel | carbon steel | carbon steel | stainless steel | stainless steel | |||
| 19 | hand wheel | malleable iron | malleable iron | malleable iron | malleable iron | malleable iron | |||
| 20 | wheel nut | carbon steel | carbon steel | carbon steel | carbon steel+zn | carbon steel+zn | |||
| *1 | pn≥600 class seal face will be hf | ||||||||
| *2 | ptfe optional | ||||||||
| *3 | ductile ni-resist iron optional | ||||||||
| na | integral with vessell | ||||||||
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