● 制造與驗收技術條件按日本火力發電用閥門標準E101和JB/T3595-93的規定； ● 結構長度按E101的規定或按用戶提供尺寸 ● 焊接坡口接電力工業管理標準78DG的規定或按用戶提供尺寸。 ● The manufalture and aueptanle specigication shan be based on the japanese standard E101 applied for the thermal powerand JB/T3595-93 ● The length shall bein line with E101 or by user's speeification. ● Welding groove shan be in auordanle with power industrh spe-cification 78DG or hg user' specification ● The size in inclose is old production's size
主要零件的材料說明：
性能規范Property and specifiecation
產品型號 Product type 公稱壓力PN(MPa)Nominal pressure
試驗壓力(MPa)Test pressure
工作壓力(MPa) Working pressure
工作溫度(℃) Working temperature
適用介質 Appicable medium
強度試驗 Sheel test
密封試驗/上密封實驗 Seal test
Z960Y-250
25
37.5
27.5
-
≤425
水、蒸汽、Water,steam
Z960Y-320
32
48.0
36.0
-
≤425
Z960Y-P54100
-
30.0
22.0
P5410
≤540
蒸汽 Steam
Z960Y-P54170
-
48.0
36.0
P5417
≤540
主要零件材料Matecrial for main parts
零件名稱Part name
材料牌號Material designation
閥體Body
WCB
WC6
WC9
閥板Disc
WCB
WC6
WC9
閥蓋Bonnet
25
12Cr1Mo1VA
閥桿Stem
1Cr17Ni2
20Cr1Mo1VA
閥座Seat
25
12Cr1Mo1VA
密封環Sealing ring
S軟鋼(增強柔性石墨)S soft steel (flexible graphite)
S軟鋼S soft steel
F軟鋼F Soft steel
填料Packing
增強柔性石墨Fexible graphite
支架Yoke
WCB
WCB或WC6
閥桿螺母Stem nut
45(ZCuZn25A16Fe3Mn3)
四開環Four piece ring
1Cr13
20Cr1MoVA
主要外形尺寸：
公稱通徑DNNominal diameter
主要外形尺寸和連接尺寸(mm)Main external and connecting dimensions
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