概述
H76X/H(DDCV系列)型阀门主要由阀体、阀瓣（阀杆）及弹簧等结构组成，
由于阀瓣的关闭行短及弹簧作用可加强关闭效果．可减少水锤和水击声。
Overview
H76X/H (DDCV Series)valves are mainly com-posed of body, disc(valve stem),
spring and etc
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概述 H76X/H(DDCV系列)型阀门主要由阀体、阀瓣（阀杆）及弹簧等结构组成， 由于阀瓣的关闭行短及弹簧作用可加强关闭效果．可减少水锤和水击声。 H46X/H是法兰连接蝶型止回阀。这两种阀门主要用于给水系统 ．高楼建筑及工业区，其结构长度较一般的止回阀短 ．对有安装空间限制的场所最为便利。
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Overview H76X/H (DDCV Series)valves are mainly com-posed of body, disc(valve stem), spring and etc.The short closing stroke of disc and function of spring may strengthen closing effect and reduce the sound of water hammer and stamming. H46X/H are flange connection butterfly check valves. These two types of valves are mainly used in water sup-ply system, high-rises and industrial zones.Thanks to their shorter structural length compared with ordinary check valves, they are especially ap-plicable for space-restricted locations. |
主要零件材质Main Parts and Materials
零件名称
Name
阀体、阀瓣
Valve Body、Disc
材料
Material
碳素钢、不锈钢、铬钼钢、黄铜
Carbon steel，stainless steel，chromium
Molybdenum steel，brass
阀杆
Valve Stem
不锈钢
stainless steel
扭力弹簧
Torsion spring
不锈钢
stainless steel
密封面
Seal surface
丁晴橡胶、不锈钢、聚四氟乙烯、尼龙塑料
NBR，stainless steel are gathered Four
Fluorine ethylene nylon plastics
主要性能参数Main Performace Parameters
|
型号 Type |
公称压力（MPa） Nominal Pressure |
试验压力Ps（MPa） Test Pressure PS |
工作温度（℃）Working Temperature（℃） |
适用介质 Applicable Medium |
||
|
壳体Shell |
密封Seal |
软密度Seal soflty |
硬密封Seal hard |
|||
|
H76X/H H46X/H |
1.0 |
1.5 |
1.1 |
≤80 |
≤200 |
水、油、水（蒸汽） 酸碱等介质 Oil，water（steam） Medium，such as Acid and alkali，etc.
|
|
1.6 |
2.4 |
1.8 |
||||
|
2.5 |
3.8 |
2.8 |
||||
|
4.0 |
6.0 |
4.4 |
||||
主要外形尺寸及连接尺寸Main External Dimensions and Connecting Dimensions
|
D mm |
L mm |
L1 mm |
D1 mm |
D（mm） |
|||
|
PN10 |
PN16 |
PN25 |
PN40 |
||||
|
40 |
33 |
106 |
55 |
92 |
92 |
92 |
92 |
|
50 |
43 |
108 |
65 |
107 |
107 |
109 |
109 |
|
65 |
46 |
112 |
80 |
127 |
127 |
129 |
129 |
|
80 |
64 |
114 |
95 |
142 |
142 |
144 |
144 |
|
100 |
64 |
127 |
110 |
162 |
162 |
170 |
170 |
|
125 |
70 |
140 |
141 |
192 |
192 |
198 |
198 |
|
150 |
76 |
140 |
168 |
217 |
217 |
228 |
228 |
|
200 |
89 |
152 |
219 |
272 |
272 |
288 |
293 |
|
250 |
114 |
165 |
273 |
325 |
325 |
343 |
355 |
|
300 |
114 |
178 |
324 |
377 |
377 |
403 |
420 |
|
350 |
127 |
190 |
356 |
437 |
437 |
460 |
480 |
|
400 |
140 |
216 |
418 |
490 |
490 |
520 |
549 |
|
450 |
152 |
222 |
467 |
540 |
540 |
- |
- |
|
500 |
152 |
229 |
526 |
595 |
595 |
- |
- |
|
600 |
178 |
267 |
626 |
690 |
690 |
- |
- |
|
700 |
229 |
292 |
725 |
800 |
800 |
- |
- |
|
800 |
241 |
318 |
820 |
905 |
905 |
- |
- |
|
900 |
241 |
330 |
920 |
1005 |
1005 |
- |
- |
|
1000 |
300 |
410 |
1025 |
1115 |
1115 |
- |
- |
注：法兰连接尺寸按JB/T78-1994、JB/T79-1994
Note：the flange connects size and presses JB/T78-1994、JB/T79-1994
