H71W美标对夹式止回阀
【H71W美标对夹式止回阀概述】
H71H(W)美标对夹式止回阀由阀体、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、重量轻;
阀瓣关闭快速,水锤压力小;流道通畅,流体阻力小;动作灵敏,密封性能好。
【H71W美标对夹式止回阀图】
【H71W美标对夹式止回阀的型号、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 |
注:本表为常规对夹式止回阀的型号编制、主要零件材料及适用工况,其他要求及其型号编制参见对夹止回阀型号编制方法。 |
【美标对夹式止回阀主要连接尺寸】
压力级 | 口径 | 尺寸(mm) | | 配管法兰(供参考) |
NPS | DN | L | D | D2 | D3 | D4 | | | 螺栓直径d | |
in | mm |
| 1/2 | 15 | 16 | 46 | 15 | 25 | 25 | 0.28 | 60.5 | 4 | 1/2 | M14 | 75 |
3/4 | 20 | 19 | 56 | 19 | 30 | 30 | 0.42 | 70 | 4 | 1/2 | M14 | 90 |
1 | 25 | 22 | 65 | 24 | 36 | 36 | 0.56 | 79.5 | 4 | 1/2 | M14 | 90 |
11/4 | 32 | 28 | 74 | 31 | 43 | 43 | 0.75 | 89 | 4 | 1/2 | M14 | 100 |
11/2 | 40 | 31.5 | 84 | 39 | 52 | 52 | 1.3 | 98.5 | 4 | 1/2 | M14 | 105 |
2 | 50 | 40 | 103 | 48 | 62 | 62 | 2.1 | 120.5 | 4 | 5/8 | M16 | 125 |
21/2 | 65 | 46 | 122 | 62 | 75 | 75 | 2.8 | 139.5 | 4 | 5/8 | M16 | 130 |
3 | 80 | 50 | 135 | 76 | 90 | 90 | 3.6 | 152.5 | 4 | 5/8 | M16 | 135 |
4 | 100 | 60 | 173 | 95 | 112 | 112 | 4.8 | 190.5 | 8 | 5/8 | M16 | 150 |
5 | 125 | 90 | 195 | 110 | 125 | 132 | 12 | 216.0 | 8 | 3/4 | M20 | 180 |
6 | 150 | 106 | 220 | 127 | 150 | 158 | 17 | 241.5 | 8 | 3/4 | M20 | 210 |
8 | 200 | 140 | 277 | 165 | 200 | 208 | 29 | 298.5 | 8 | 3/4 | M20 | 240 |
压力级 | 口径 | 尺寸(mm) | | 配管法兰(供参考) |
NPS | DN | L | D | D2 | D3 | D4 | | | 螺栓直径d | |
in | mm | RF | RJ |
| 1/2 | 15 | 25 | 46 | 15 | 25 | 25 | 0.28 | 60.5 | 4 | 1/2 | M14 | 90 | — |
3/4 | 20 | 31.5 | 56 | 19 | 30 | 30 | 0.42 | 70 | 4 | 1/2 | M14 | 100 | — |
1 | 25 | 35.5 | 65 | 24 | 36 | 36 | 0.56 | 79.5 | 4 | 1/2 | M14 | 105 | 120 |
11/4 | 32 | 40 | 74 | 31 | 43 | 43 | 0.75 | 89 | 4 | 1/2 | M14 | 115 | 130 |
11/2 | 40 | 45 | 84 | 39 | 52 | 52 | 1.3 | 98.5 | 4 | 1/2 | M14 | 120 | 135 |
2 | 50 | 56 | 103 | 48 | 62 | 62 | 2.1 | 120.5 | 4 | 5/8 | M16 | 140 | 155 |
21/2 | 65 | 63 | 122 | 62 | 75 | 75 | 2.8 | 139.5 | 4 | 5/8 | M16 | 155 | 170 |
3 | 80 | 71 | 135 | 76 | 90 | 90 | 3.6 | 152.5 | 4 | 5/8 | M16 | 165 | 180 |
4 | 100 | 80 | 173 | 95 | 112 | 112 | 4.8 | 190.5 | 8 | 5/8 | M16 | 175 | 190 |
5 | 125 | 110 | 195 | 110 | 125 | 132 | 12 | 216.0 | 8 | 3/4 | M20 | 210 | 225 |
6 | 150 | 125 | 220 | 127 | 150 | 158 | 17 | 241.5 | 8 | 3/4 | M20 | 230 | 245 |
8 | 200 | 160 | 277 | 165 | 200 | 208 | 29 | 298.5 | 8 | 3/4 | M20 | 270 | 285 |
| 1/2 | 15 | 25 | 52 | 15 | 25 | 25 | 0.3 | 66.5 | 4 | 1/2 | M14 | 95 | 105 |
3/4 | 20 | 31.5 | 65 | 19 | 30 | 30 | 0.46 | 82.5 | 4 | 5/8 | M16 | 110 | 125 |
1 | 25 | 35.5 | 72 | 24 | 36 | 36 | 0.6 | 89 | 4 | 5/8 | M16 | 115 | 130 |
11/4 | 32 | 40 | 81 | 31 | 43 | 43 | 0.8 | 98.5 | 4 | 5/8 | M16 | 125 | 140 |
11/2 | 40 | 45 | 94 | 39 | 52 | 52 | 1.5 | 114.5 | 4 | 3/4 | M20 | 140 | 155 |
2 | 50 | 56 | 110 | 48 | 62 | 62 | 2.4 | 127.0 | 8 | 5/8 | M16 | 145 | 170 |
【美标对夹式止回阀流体阻力系数、流量系数及开启压力】
水的当量体积流量Vw与实际流体的体积流量V按下式换算:
式中:Vw-水的当量体积流量,1/S; ρ-流体密度,kg/m3; V-实际流体的体积流量,1/S。 |
流体力学性能·H71美标对夹式止回阀的流体阻力系数 公称通径 | 阀门全开启 时的流体阻 力系数ξ | 常温下阀门全开启时的水流量系数 | 流体的流向 | DN | NPS | Kv(m3/h) | Cv(U.S) | Cv(U.K) | ↑ | ↓ | → | 开启压力近似值KPa | 15 | 1/2 | 6.4 | 2.6 | 3.0 | 2.5 | 3 | 2 | 25 | 20 | 3/4 | 5.1 | 6.4 | 7.5 | 6.3 | 3 | 2 | 2.5 | 25 | 1 | 4.1 | 12.6 | 14.8 | 12.3 | 3 | 2 | 2.5 | 32 | 11/4 | 4.1 | 19.7 | 23.1 | 19.3 | 3 | 2 | 2.5 | 40 | 11/2 | 3.8 | 29.5 | 34.5 | 28.9 | 3 | 2 | 2.5 | 50 | 2 | 3.5 | 54.6 | 63.9 | 53.5 | 3 | 2 | 2.5 | 65 | 21/2 | 3.5 | 85.4 | 99.9 | 83.7 | 3 | 2 | 2.5 | 80 | 3 | 3.2 | 128 | 150 | 125 | 3 | 2 | 2.5 | 100 | 4 | 2.8 | 244 | 286 | 249 | 3 | 2 | 2.5 | 125 | 5 | 2.9 | 375 | 439 | 368 | 3 | 1 | 2.2 | 150 | 6 | 3.1 | 522 | 611 | 512 | 3 | 1 | 2.2 | 200 | 8 | 3.2 | 915 | 1070 | 897 | 3 | 1 | 2.2 |
【美标对夹式止回阀结构特点】 1、结构长度短,其结构长度只有传统法兰止回阀的1/4~1/8 2、体积小、重量轻、其重量只有传统法兰止回阀的1/4~1/20 3、阀瓣关闭快速,水锤压力小 4、水平管道使用,安装方便 5、流道通畅、流体阻力小 6、动作灵敏、密封性能好 7、阀瓣行程短、关阀冲击力小 8、整体结构、简单紧凑、造型美观 9、使用寿命长、可靠性高 |
订货须知:
一、①美标对夹式止回阀产品名称与型号②美标对夹式止回阀口径③美标对夹式止回阀是否带附件以便我们的为您正确选型。
二、若已经由设计单位选定宗力阀门美标对夹式止回阀型号,请按美标对夹式止回阀型号直接向我司销售部订购。
三、当使用的场合非常重要或环境比较复杂时,请您尽量提供设计图纸和详细参数,由我们的宗力阀门专家为您审核把关
H71W美标对夹式止回阀 由于网页文字尺寸格式的限制,更多尺寸无法列出,如您有更多需求请
永嘉宗力阀门制造有限公司是浙江省专业的大型阀门生产厂家,浙江省产品,浙江省,全国大型通用阀门生产企业。数十年高中低以及自控阀门非标阀门专业制造经验,通过ISO9001、API 6D、CE认证,为客户提供高质量高性价比的阀门产品。
浙江宗力阀门以*的产品质量,优良的售后服务赢得了广大用户的充分肯定。我公司的产品全国各省市。您的满意,我的责任,我们将为您的需求尽zui大努力!