2、波紋管減壓閥是由閥體、閥蓋、閥瓣、閥體密封圈、閥桿、波紋管、調(diào)節(jié)彈簧等零件組成,體腔進(jìn)口組裝有閥瓣、閥體密封圈和輔彈簧,輔彈簧是保持閥瓣和閥體密封圈自動(dòng)的密封,出口體腔組裝彈性密封元件(波紋管)即保證閥后介質(zhì)壓力的泄漏和克服壓力不均勻度的補(bǔ)償。螺釘是調(diào)整彈簧負(fù)荷壓力減壓閥工作性能。
公稱壓力(MPa) | 0.6 | 1.0 | 1.6 |
殼體試驗(yàn)壓力(MPa) | 0.9 | 1.5 | 2.4 |
密封試驗(yàn)壓力(MPa) | 0.6 | 1.0 | 1.6 |
進(jìn)口壓力(MPa) | 0.6 | 1.0 | 1.6 |
出口壓力范圍(MPa) | 0.05-0.4 | 0.1-0.8 | 0.1-1.0 |
壓力特性偏差(MPa)△P2P | GB12244-1989 | ||
流量特性偏差(MPa)△P2G | GB12244-1989 | ||
最小壓差(MPa) | 0.1 | 0.15 | 0.15 |
滲漏量 | GB12245-1989 |
零件名稱 | 零件材料 |
閥體、閥蓋 | WCB |
底蓋 | WCB |
閥座、閥瓣 | 2Cr13 |
波紋管 | 1Cr18N9Ti |
波紋管上墊 | 2Cr13 |
波紋管下墊 | 2Cr13 |
號(hào)向座 | 2Cr13 |
主閥彈簧 | 50CrVA |
調(diào)節(jié)彈簧 | 60S12Mn |
DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 |
Cv | 1 | 2.5 | 4 | 6.5 | 9 | 16 | 25 | 36 | 64 |
公稱通徑DN | 外形尺寸 | 連接尺寸 | |||||||||||||||||
L | H | H1 | PN1.6MPa | PN1.6MPa | PN1.6MPa | ||||||||||||||
0.6/1.0MPa | 1.6MPa | D | K | n-Φ | d | C | D | K | n-Φ | d | C | D | K | n-Φ | d | C | |||
15 | 140 | 140 | 290 | 90 | 80 | 55 | 4-12 | 40 | 12 | 95 | 65 | 4-14 | 45 | 12 | 95 | 65 | 4-14 | 45 | 14 |
20 | 140 | 140 | 295 | 98 | 90 | 65 | 4-12 | 50 | 12 | 105 | 75 | 4-14 | 55 | 14 | 105 | 75 | 4-14 | 55 | 14 |
25 | 160 | 160 | 295 | 110 | 100 | 75 | 4-12 | 60 | 14 | 115 | 85 | 4-14 | 65 | 14 | 115 | 85 | 4-14 | 65 | 14 |
32 | 1080 | 180 | 295 | 110 | 120 | 90 | 4-14 | 70 | 14 | 135 | 100 | 4-18 | 78 | 16 | 135 | 100 | 4-18 | 78 | 16 |
40 | 200 | 200 | 325 | 125 | 130 | 100 | 4-14 | 80 | 14 | 145 | 110 | 4-18 | 85 | 16 | 145 | 110 | 4-18 | 85 | 16 |
50 | 230 | 230 | 325 | 125 | 150 | 110 | 4-14 | 90 | 14 | 160 | 125 | 4-18 | 100 | 16 | 160 | 125 | 4-18 | 100 | 16 |
65 | 280 | 325 | 130 | 160 | 130 | 4-14 | 110 | 14 | 180 | 145 | 4-18 | 120 | 18 | 180 | 145 | 4-18 | 120 | 18 | |
80 | 310 | 380 | 160 | 185 | 150 | 4-18 | 125 | 16 | 195 | 160 | 4-18 | 135 | 18 | 195 | 160 | 8-18 | 135 | 20 | |
100 | 350 | 380 | 170 | 205 | 170 | 4-18 | 145 | 16 | 215 | 180 | 8-18 | 155 | 20 | 215 | 180 | 8-18 | 155 | 20 |