技術(shù)標(biāo)準(zhǔn):
1、制造驗(yàn)收技術(shù)條件按日本火力發(fā)電用閥標(biāo)準(zhǔn)的E101的規(guī)定。
2、閥門結(jié)構(gòu)長(zhǎng)度按E101的規(guī)定。
3、閥體焊接坡口按ANSl B16 25的規(guī)定或按用戶提供的尺寸。
Mahufacture and Acceptanle stanelard
1、The manufaceture and acceptance specification shall be based on the japanese stand ard E101 applied for th thermal power plant
2、The 1ength shall be in line with E101
3、Valve body weldi ng grouve shall be in all ordance wieh ANSlBl6.25 orwieh aser’s specificate
技術(shù)參數(shù):
殼體材料 Shellmaterial | 適用溫度/℃ Applicable temperature | 適用介質(zhì) Applicable medium |
ASTM A216 WCB | ≤425 | 蒸汽、水 |
ASTM A217 WC1 | ≤450 | |
ASTM A217 WC6 | ≤550 | |
ASTM A217 WC9 | ≤590 |
主要零件材質(zhì):
殼體材料 Shell material | 材料牌號(hào)Mater…Designation | |||
閥體 | WOB | WC1 | WC6 | WC9 |
閘板 | WCB | WC1 | WC6 | WC9 |
閥蓋 | 25 | 15CrMoVA | 12CrMoVA | 12CrMoVA |
WCB | WCl | WC6 | WC9 | |
閥桿 | 38CrMoVA | 38CrMoVA | 38CrMoVA | 38CrMoVA |
20CrlMolV1A | 20Cr1MoVA | |||
填料 | 增強(qiáng)柔性石墨 Flexible Graphite | |||
支架 | WCB | WCB | WCB | WCB |
WC1 | WC6 | WC9 | ||
密封環(huán) | S軟鋼(增強(qiáng)柔性石墨) | S軟鋼 | F軟鋼 | |
閥桿螺母 | ZQA19-4或A439 D2 |