美標(biāo)磅級(jí)高壓閘閥:
制造驗(yàn)收技術(shù)標(biāo)準(zhǔn):
1、制造驗(yàn)收技術(shù)條件按日本火力發(fā)電閥標(biāo)準(zhǔn)的E101的規(guī)定;
2、閥門(mén)結(jié)構(gòu)長(zhǎng)度按E101的規(guī)定;
3、閥體焊接口按 ANSI B16.25 的規(guī)定或用戶提供的尺寸
殼體材料 Shell material | 適用溫度/℃ Applicable temperature | 適用介質(zhì) Applicable medium |
ASTM A216 WCB | ≤425 | 蒸汽、水 Steam、Water |
ASTM A217 WCl | ≤450 | |
ASTM A217 WC6 | ≤550 | |
ASTM A217 WC9 | ≤590 |
零件名稱 Part Name | 材料牌號(hào) Material Designation | |||
閥 體 Body | WCB | WCl | WC6 | WC9 |
閘 板 Disc | WCB | WCl | WC6 | WC9 |
閥 蓋 Bonnet | 25 | 15CrMoVA | 12CrMoVA | 12CrMoVA |
WCB | WCl | WC6 | WC9 | |
閥桿 Stem | 38CrMoAlA 1Crl7Ni2 | 38CrMoAlA 1Crl7Ni2 | 38CrMoAIA | 38CrMoAIA |
20CrlMo1V1A | 20Cr1MoVA | |||
填 料 Packing | 增強(qiáng)柔性石墨 Flexible Graphite | |||
支 架 Yoke | WCB | WCB | WCB | WCB |
WCl | WC6 | WC9 | ||
密封環(huán) Sealing ring | S軟鋼(增強(qiáng)柔性石墨) S Soft steel(flexible graphite) | S軟鋼 S Soft steel | F軟鋼 F Soft steel | |
閥桿螺母 Stem nut | zQAL9-4或A439 D2 |