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便利。

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.

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