H71德标升降式对夹止回阀由阀体、阀瓣、弹簧等组成，水平或垂直安装于管路系统，防止介质倒流，具有结构短、体积小、质量轻；阀瓣关闭快速，水锤压力小；流道通畅，流体阻力小；动作灵敏，密封性能。适用介质：一般适用于清净介质，不宜用于含有固体颗粒和粘度较大的介质，如水、蒸汽、油品、硝酸、醋酸、氧化性介质、尿素等。
H71德标升降式对夹止回阀型号、材料及主要参数:
配管法兰
|
公称压力
|
常规产品型号
|
JB/T 74
~90、
GB/T 9112
~9124、
HG 20592
~20614
|
PN1.0MPa
|
H71H-10C
|
H71W-10P
|
H71W-10P8
|
H71W-10P3
|
H71W-10R
|
H71W-10R8
|
H71W-10R3
|
PN1.6MPa
|
H71W-16C
|
H71W-16P
|
H71W-16P8
|
H71W-16P3
|
H71W-16R
|
H71W-16R8
|
H71W-16R3
|
PN2.5MPa
|
H71W-25
|
H71W-25P
|
H71W-25P8
|
H71W-25P3
|
H71W-25R
|
H71W-25R8
|
H71W-25R3
|
PN4.0MPa
|
H71W-40
|
H71W-40P
|
H71W-40P8
|
H71W-40P3
|
H71W-40R
|
H71W-40R8
|
H71W-40R3
|
PN6.3MPa
|
H71W-63
|
H71W-63P
|
H71W-63P8
|
H71W-63P3
|
H71W-63R
|
H71W-63R8
|
H71W-63R3
|
PN10.0MPa
|
H71W-100
|
H71W-100P
|
H71W-100P8
|
H71W-100P3
|
H71W-100R
|
H71W-100R8
|
H71W-100R3
|
PN16.0MPa
|
H71W-160
|
H71W-160P
|
H71W-160P8
|
H71W-160P3
|
H71W-160R
|
H71W-160R8
|
H71W-160R3
|
GB/T 9112
~9124、
HG 20615
~20635、
SH 3406
|
PN2.0MPa
|
H71H-20C
|
—
|
H71W-20P8
|
H71W-20P3
|
—
|
H71W-20R8
|
H71W-20R3
|
PN5.0MPa
|
H71H-50
|
—
|
H71W-50P8
|
H71W-50P3
|
—
|
H71W-50R8
|
H71W-50R3
|
PN11.0MPa
|
H71H-110
|
—
|
H71W-110P8
|
H71W-110P3
|
—
|
H71W-110R8
|
H71W-110R3
|
PN15.0MPa
|
H71H-150
|
—
|
H71W-150P8
|
H71W-150P3
|
—
|
H71W-150R8
|
H71W-150R3
|
ANSI B 16.5
|
Class150
|
H71H-A1C
|
—
|
H71W-A1P8
|
H71W-A1P3
|
—
|
H71W-A1R8
|
H71W-A1R3
|
Class300
|
H71H-A3
|
—
|
H71W-A3P8
|
H71W-A3P3
|
—
|
H71W-A3R8
|
H71W-A3R3
|
Class600
|
H71H-A6
|
—
|
H71W-A6P8
|
H71W-A6P3
|
—
|
H71W-A6R8
|
H71W-A6R3
|
Class900
|
H71H-A9
|
—
|
H71W-A9P8
|
H71W-A9P3
|
—
|
H71W-A9R8
|
H71W-A9R3
|
|
|
阀体
|
WCB（A105）
|
ZG1Cr18Ni9Ti
|
CF8（304）
|
CF3（304L）
|
ZG1Cr18Ni12Mo2Ti
|
CF8M（316）
|
CF3M（316L）
|
阀瓣
|
2Cr13
|
1Cr18Ni9Ti
|
0Cr18Ni9
|
00Cr19Ni10
|
1Cr18Ni12Mo2Ti
|
0Cr17Ni12Mo2
|
00Cr17Ni14Mo2
|
压圈
|
2Cr13
|
1Cr18Ni9Ti
|
0Cr18Ni9
|
00Cr19Ni10
|
1Cr18Ni12Mo2Ti
|
0Cr17Ni12Mo2
|
00Cr17Ni14Mo2
|
弹簧
|
0Cr18Ni9
|
0Cr18Ni9
|
0Cr18Ni9
|
00Cr19Ni10
|
0Cr17Ni12Mo2
|
0Cr17Ni12Mo2
|
00Cr17Ni14Mo2
|
|
|
适用介质
|
水、蒸汽、油品等
|
硝酸等腐蚀性介质
|
强氧化性介质
|
醋酸等腐蚀性介质
|
尿素等腐蚀性介质
|
适用温度（℃）
|
-29~425
|
-196~540
|
-196~425
|
-196~540
|
-196~455
|