產(chǎn)品介紹：
全啟式安全閥，是指開啟高度大于等于1/4流道直徑的安全閥。這種安全閥的動(dòng)作特性屬于兩段作用式安全閥。
安全閥的主要參數(shù)是排量，這個(gè)排量決定于閥座的口徑和閥瓣的開啟高度，由開啟高度不同，又分為微啟式和全啟式兩種。微啟式是指閥瓣的開啟高度為閥座喉徑的1/40～l/20。全啟式是指閥瓣的開啟高度為閥座喉徑的1/4。
全啟式安全閥：應(yīng)用在蒸汽介質(zhì)是一般有一個(gè)突然全開動(dòng)作，此突開動(dòng)作時(shí)的壓力為整定壓力（突跳壓力）；應(yīng)用在空氣介質(zhì)是，先打開與進(jìn)口壓力增加開高呈比例升高，然后再突然起跳全開，稱二段式開啟；一般不可用于液體介質(zhì)。
微啟式安全閥：先打開與進(jìn)口壓力增加開高呈比例升高，壓力下降時(shí)亦隨進(jìn)口壓力下降開高呈比例下降，一般用于液體介質(zhì)（或保護(hù)管道時(shí)用于可壓縮氣體）。
主要連接尺寸：
型 號(hào) | 公稱 | 主要結(jié)構(gòu)尺寸(mm) | 閥體 | 簡要性能 | 備注 | ||||||
通徑 | 壓力 | D | D1 | L | L1 | H | 適用溫度 | 適用介質(zhì) | |||
A42Y-16C | 32 | 1.6 | 135 | 146 | 115 | 110 | 285 | 鑄鋼 | ≤300 | 油品、空氣等 |
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" | 40 | " | 150 | 160 | 120 | 110 | 278 | " | " | " |
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" | 50 | " | 165 | 180 | 135 | 120 | 332 | " | " | " |
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" | 65 | " |
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| " | " | " |
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" | 80 | " | 200 | 215 | 170 | 135 | 478 | " | " | " |
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" | 100 | " | 220 | 245 | 205 | 160 | 590 | " | " | " |
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" | 150 | " | 280 | 310 | 255 | 230 | 650 | " | " | " |
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" | 200 | " |
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| " | " | " |
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A42Y-40 | 32 | 4.0 | 140 | 150 | 115 | 100 | 285 | 鑄鋼 | ≤300 | 油品、空氣等 |
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" | 40 | " | 145 | 160 | 130 | 120 | 278 | " | " | " |
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" | 50 | " | 160 | 180 | 145 | 130 | 332 | " | " | " |
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" | 65 | " |
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|
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| " | " | " |
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" | 80 | " | 195 | 215 | 170 | 150 | 478 | " | " | " |
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" | 100 | " | 230 | 245 | 205 | 185 | 590 | " | " | " |
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" | 150 | " | 300 | 310 | 255 | 230 | 650 | " | " | " |
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" | 200 | " |
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| " | " | " |
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A42Y-64 | 32 | 6.4 |
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| 鑄鋼 | ≤300 | 油品、空氣等 |
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" | 40 | " | 165 | 160 | 130 | 120 | 308 | " | " | " |
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" | 50 | " | 175 | 180 | 155 | 130 | 464 | " | " | " |
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" | 65 | " |
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| " | " | " |
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" | 80 | " | 210 | 230 | 175 | 160 | 582 | " | " | " |
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" | 100 | " | 250 | 270 | 195 | 195 | 600 | " | " | " |
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全啟式安全閥：/aqf/71.html
減壓穩(wěn)壓閥：/jywyf
電站閥門：/dzfm
渦輪蝶閥：/wldf
潛水排污泵：/qspwb
中國產(chǎn)業(yè)帶：
