概述

H76X/H(DDCV系列)型閥門主要由閥體、閥瓣（閥桿）及彈簧等結(jié)構(gòu)組成，

由于閥瓣的關(guān)閉行短及彈簧作用可加強(qiáng)關(guān)閉效果．可減少水錘和水擊聲。

H46X/H是法蘭連接蝶型止回閥。這兩種閥門主要用于給水系統(tǒng)

．高樓建筑及工業(yè)區(qū)，其結(jié)構(gòu)長度較一般的止回閥短

．對有安裝空間限制的場所便利。

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.

型號(hào)

Type

公稱壓力（MPa）

Nominal Pressure

試驗(yàn)壓力Ps（MPa）

Test Pressure PS

工作溫度（℃）Working Temperature（℃）

適用介質(zhì)

Applicable Medium

殼體Shell

密封Seal

軟密度Seal soflty

硬密封Seal hard

H76X/H

H46X/H

1.0

1.5

1.1

≤80

≤200

水、油、水（蒸汽）

酸堿等介質(zhì)

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