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法兰低温球阀

标签:法兰,低温,球阀 时间:2018年06月14日 阅读

概述:法兰低温球阀 (dq41f)
低温球阀分为低温浮动球和低温固定球两类,用于截断或接通管路中的低温介质,介质最低温度不得低于-196度。
实行标准 administer standard

设计与制造
design and manufacture
结构长度
face to face
法兰尺寸
flange dimension
压力-温度
pressure temperature lating
试验-检验
inspection and test
gb122237gb12221gb9113 jb79gb9131gb/t13927 jb/t9092

压力试验 pressure test

公称压力nominalpressure1.62.54.0
强度试验
shell test
2.43.86.0
水密封试验
water seal test
1.82.84.4
气密封试验
air seal test
0.4-0.7

重要零件材料及性能 main part materials and property

阀体
body
wcbzg1cr18ni9ticf8cf3zg1cr18ni12mo2ticf8mcf3m
球体 阀杆
ball stem
2cr131cr18ni9ti304304l1cr18ni12mo2ti316316l
阀 座
seat
聚四氟乙烯ptfe 加坡纤加强聚四氟乙烯ptfe+glass 对位聚笨ppl
垫片
shim
聚四氟乙烯ptfe 不锈钢/柔性石墨stainless steel/flexible graphite 齿形垫片tooth profile gasket
阀杆座
stem seat
聚四氟乙烯ptfe 不锈钢/柔性石墨 stainless steel/flexible graphite
填料
packing
聚四氟乙烯ptfe 加强柔性石墨 enhanced flexible graphite
填料压盖
gland
wcb1cr18ni9ti304304l1cr18ni12mo2ti316316l
温度
temperature
-40~150
介质
medium
水 蒸汽 油品
water steam
oil goods
硝酸类 nitric acid强氧化介质
strongey oxidable medium
醋酸类 acetic acid尿素类 urea

规格 重要尺寸 size main dimensions

1.6mpadnldd1d2bn-φdhd0
凸面法兰
rf dq41 16c 16p 16r
15130956545144-1478140
201401057555144-1484160
251501158565144-1495180
3216513510078164-18150250
4018014511085164-18150300
50200160125100184-18170350
65220180145120204-18195350
80250195160135208-18215400
100280215180155208-18250500
125320245210185228-18265600
150360280240210248-23270800
2004003352952652612-233301200
2.5mpa15130956545164-14103140
凸面法兰 rf dq41 25 25p 25r201401057555164-14112160
251501158565164-14123180
3216513510078184-18150250
4018014511085184-18156300
50200160125100208-18172350
65220180145120228-18197350
80250195160135228-23222400
100280230190160248-23253500
125320270220188288-25275600
150360300250218308-25286800
2004003603102783412-253401200

规格 重要尺寸 size main dimensions

4.0mpadnldd1d2d6bn-φdhd0
凹凸法兰 mfm dq41 40 40p 40r1513095654540164-14103140
20140105755551164-14112160
25150115856558164-14123160
321801351007866184-18150250
402001451108576184-18156250
5022016012510088204-18172350
65250180145120110228-18197350
80280195160135121228-18222450
100320230190160150248-23253450
125400270220188176288-25275600
150400300250218204308-25286800
2005503753202822603812-303401200
6.4mpa15165105755540184-14105140
凹凸法兰 mfm dq41 64 64p 64r20190125906851204-18125160
252161351007858224-18135250
322291501108266244-23150350
402411651259576244-23165350
5029217513510588264-23175450
65330200160130110288-23200450
80356210170140121308-23210600
100432250200168150328-25250700
125508295240202176368-302951100
150559340280240204388-343401500

法兰低温球阀