类型设计与制造结构长度法兰尺寸压力温度试验-检验旋启式止回阀GB12236GB12221GB9113
JB79GB9131GB/T13927
JB/9092升降式止回阀GB12235
二、压力试验公称压力1.62.54.06.410.016.0强度试验2.43.86.09.615.024.0水密封试验1.82.84.47.011.018.0气密封试验0.5-0.7
三、主要零件材料及性能体、盖、板阀杆密封面垫片密封面工作温度℃适用介质WCBWCB1Cr13增强柔性石墨
1Cr13/柔性石墨
PTFE
齿轮垫片13Cr
STL
本材料
尼龙 ≤425水蒸汽油品WC6WC6 ≤540WC9WC9 ≤570ZGCr5MoZGCr5Mo ≤550ZG1Cr18Ni9TiZG1Cr18Ni9TiZG1Cr18Ni9Ti ≤200硝酸类ZG1Cr18Ni12Mo9TiZG1Cr18Ni12Mo9TiZG1Cr18Ni12Mo9Ti ≤200醋酸类
三、国标升降式止回阀
四、规格主要尺寸和重量1.6MPaDNLDD1D2bn-ΦdHW(kg)凸面法兰
RF
H41H
H41Y
H41W
H41N16C
16P
16R15130956545144-14582.0201501057555144-14632.7251601158565144-14713.53218013510078164-18845.44020014511085164-18966.550230160125100164-181159.165290180145120184-181451480310195160135208-1815625100350215180155208-1817040125400245210185228-1820156150480280240210248-23238902.5MPa15130956545164-14604凸面法兰
RF
H41H
H41Y
H41W
H41N25
25P
25R201501057555164-14645251601158565164-146863218013510078184-187994020014511085184-18981250230160125100204-181101665290180145120228-181602480310195160135228-1817031100350230190160248-2319545125400270220188288-2522568150480300250210308-252551004.0MPaDNLDD1D2bn-dH重量凹凸法兰
MFM
H41H
H41Y
H41W
H41N40
40P
40R
40I15130956540164-141004201501057551164-141055251601158558164-1412063218013510066184-1813094020014511076184-18135125023016012588204-181491565290180145110228-181641880310195160121228-1816925100350230190150248-2319435125400270220176288-2522565150480300250204308-25255100 152101057540184-141007凹凸法兰
MFM
H41H
H41Y
H41W
H41N64
64P
64R
64I202301259051204-18110112523013510058224-18125133226015011066244-23152144026016512576244-23168205030017513588264-231702365340200160110288231883780380210170121308-2320546100430250200150328-2523068125500295240