型號 Type

零件名稱

Accesory name

材 質(zhì) Materials

Q21F-64/C/P/R 內(nèi)螺紋

Q21F-64/C/P/R 法蘭

Q21F-64/C/P/R 焊接三段式
（ 對焊 , 承插焊 ）

閥體 Body

WCB、45

CF8、304

CF8M、316

閥座 Seat

WCB、45

CF8、304

CF8M、316

球 Ball

1Cr18Ni9Ti

0Cr18Ni9Ti

0Cr17Ni12Mo2

閥座 Seat

增強(qiáng)聚四氟乙烯、對位聚苯 RPTFE Counterpoint polyphenyl

閥桿 Stem

2Cr13

0Cr18Ni9Ti

0Cr17Ni12Mo2

止推墊圈 Pressure disk

聚四氟乙烯 復(fù)合墊 PTFE Combined gasket

閥桿填料 Stem stuffing

V型聚四氟乙烯、石墨 V- shaped PTFE Graphite

螺栓 Bolt

35

304

六角螺母 Hex nut

35

304

彈簧墊圈 Spring washer

中碳 Clamp nut

304

壓緊螺母 Spring washer

35

304

彈簧墊圈 Medium carbon

中碳 Clamp nut

304

螺母 Nut

35

304

手柄 Wrench

1Cr18Ni9Ti

304

手柄套 Wrench cover

塑 料 Plastics

鎖緊裝置 Lock instrument

1Cr18Ni9Ti

304

適用工況
Applicable
Operating Mode

適用介質(zhì) Applicable medium

水、蒸汽、油品等
Water,vapor,and oil products,etc.

硝酸等腐蝕性介質(zhì) Corrosion medium such as Nitric acid.

醋酸等腐蝕性介質(zhì) Corrosion medium such as Acetic acid.

適用溫度 Applicable temperature

-28～350℃

應(yīng)用規(guī)范
Applicable
specification

管螺紋標(biāo)準(zhǔn)
Pipe screw standard

DIN259/2999 GB7307-87 NPT BSPT

法蘭標(biāo)準(zhǔn)
Flanged standard

JB79-59、SH3406、GB9113、HG20592-97

螺紋標(biāo)準(zhǔn)
Screw standard

GB196