特殊调节阀是由基型调节阀针对特殊要求演变、改进而成的,其内在联系如表6-3
表6—3 调节阀基型产品和特殊调节阀产品的内在联系表
序 号 |
按主要性能分 |
十大类基型产品(普通产品) | ||||||||||
特殊产品或变型产品 |
主要指标 |
角型阀 |
全功能调节阀 | |||||||||
1 |
软密封切断阀 |
≤10-7、气泡级 |
√ |
× |
0 |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
2 |
硬密封切断阀 |
≤10-7 |
0 |
× |
× |
0 |
× |
× |
√ |
√ |
0 |
√ |
3 |
耐磨损(冲蚀)阀 |
堆耐磨合金 |
0 |
0 |
× |
0 |
0 |
× |
0 |
√ |
√ |
√ |
4 |
450~900℃ |
√ |
× |
× |
√ |
× |
× |
√ |
√ |
√ |
√ | |
5 |
PN22、32Mpa |
√ |
× |
× |
√ |
× |
× |
0 |
√ |
× |
√ | |
6 |
△P>[△P] |
× |
√ |
√ |
× |
× |
× |
× |
√ |
√ |
√ | |
7 |
大口径调节阀 |
超过标准 |
× |
× |
× |
× |
× |
× |
√ |
√ |
0 |
√ |
8 |
全四氟耐蚀调节阀 |
常温低压强腐蚀 |
√ |
× |
× |
× |
× |
√ |
√ |
√ |
× |
× |
9 |
全合金耐蚀调节阀 |
高温高压强腐蚀 |
√ |
× |
× |
√ |
× |
× |
√ |
× |
× |
0 |
10 |
普通耐蚀调节阀 |
中等腐蚀 |
√ |
× |
× |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
11 |
防堵阀 |
不干净介质 |
× |
× |
× |
√ |
× |
0 |
0 |
√ |
√ |
√ |
12 |
结晶介质 |
√ |
0 |
0 |
√ |
√ |
× |
√ |
√ |
√ |
√ | |
13 |
0.2秒紧急动作阀 |
0.2秒 |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
√ |
14 |
高可调比阀 |
R>100 |
× |
× |
× |
× |
× |
× |
× |
√ |
√ |
√ |
15 |
低S节能阀 |
S<0.2 |
× |
√ |
√ |
× |
× |
× |
× |
× |
× |
√ |
16 |
低噪音阀 |
降低噪音 |
× |
× |
√ |
× |
× |
× |
× |
× |
× |
√ |
17 |
精小、轻便 |
高度重量下降约30% |
× |
× |
× |
√ |
× |
× |
√ |
0 |
√ |
√ |
符号说明:“√”表示较佳;“0”表示可以;“×”表示差。