1747-IM16
5、安全阀类:用于超压安全保护,包括各种类型的安全阀。
(二)接主要参数分类:
1、 按压力分类:
(1)真空阀:工作压力低于标准大气压的阀门
(2)低压阀:公称压力PN≤1.6Mpa的阀门
(3)中压阀:公称压力PN2.5--6.4Mpa的阀门
(4)高压阀:公称压力PN10--80Mpa的阀门
(5)超高压阀门:公称压力PN≥100Mpa
2、按介质工作温度分类
(1)高温阀:t>450℃的阀门
(2)中温阀:120℃≤t≤450℃的阀门
(3)常温阀:-40℃≤t≤120℃的阀门
(4)低温阀:-100℃≤t≤-40℃的阀门
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