J41W-40R手動不銹鋼截止閥的啟閉件是塞形的閥瓣,密封面呈平面或錐面,閥瓣沿流體的中心線作直線運動。閥桿的運動形式,有升降桿式(閥桿升降,手輪不升降),也有升降旋轉桿式(手輪與閥桿一起旋轉升降,螺母設在閥體上)。截止閥只適用于全開和全關,不允許作調節和節流。截止閥屬于強制密封式閥門,所以在閥門關閉時,必須向閥瓣施加壓力,以強制密封面不泄漏。當介質由閥瓣下方進入上方時,操作力所需要克服的阻力,是閥桿和填料的磨擦力與由介質的壓力所產生的推力,關閥門的力比開閥門的力大,所以閥桿的直徑要大,否則會發生閥桿頂彎的故障。近年來,從自密封的閥門出現后,截止閥的介質流向就改由閥瓣上方進入閥腔,這時在介質壓力作用下,關閥門的力小,而開閥門的力大,閥桿的直徑可以相應地減少。同時,在介質作用下,這種形式的閥門也較嚴密。我國閥門“三化給”曾規定,截止閥的流向,一律采用自上而下。
截止閥開啟時,閥瓣的開啟高度,為公稱直徑的25%~30%時,流量已達到,表示閥門已達全開位置。所以截止閥的全開位置,應由閥瓣的行程來決定。
J41W-40R手動不銹鋼截止閥應用規范:
設計制造標準 | 結構長度標準 | 法蘭尺寸標準 | 閥門檢查和試驗標準 |
GB12235-89 | GB12221-89 | JB/G79-94 | GB13927 |
型 號 | 公稱壓力(Mpa) | 試驗壓力 | 工作溫度(℃) | 適用介質 | ||
殼體試驗(Mpa) | 氣密性(Mpa) | 低壓密封空氣(Mpa) | ||||
J41W-16P(R) | 1.6 | 2.4 | 1.76 | 0.6 | ≤250 | NITRIC ACID 硝酸類 |
J41W-25P(R) | 2.5 | 3.75 | 2.8 | 0.6 | ≤250 | |
J41W-40P(R) | 4.0 | 6.0 | 4.4 | 0.6 | ≤250 | |
J41W-64P(R) | 6.4 | 9.6 | 7.04 | 0.6 | ≤250 |
零件名稱 | J41W(304) | J41W(304L) | J41W(316) | J41W(316L) | WCB |
閥體/閥蓋 | ZG1Cr18Ni9Ti | ZG00Cr18Ni10 | ZG1Cr18Ni12Mo2Ti | ZG00Cr17Ni14Mo2 | WCB |
閥瓣 | ZG1Cr18Ni9Ti | ZG00Cr18Ni10 | ZG1Cr18Ni12Mo2Ti | ZG00Cr17Ni14Mo2 | 1Cr13 |
閥桿 | ZG1Cr18Ni9Ti | 00Cr18Ni10 | 1Cr18Ni12Mo2Ti | 00Cr17Ni14Mo2 | 1Cr13 |
填料 | PTFE編織 | PTFE編織 | PTFE編織 | PTFE編織 | 石墨 |
墊片 | 304+PTFE | 304L+PTFE | 316+PTFE | 316L+PTFE | 石墨+304 |
壓蓋 | ZG1Cr18Ni9Ti | ZG00Cr18Ni10 | ZG1Cr18Ni12Mo2Ti | ZG00Cr17Ni14Mo2 | WCB |
填料壓環 | 1Cr18Ni9Ti | 00Cr18Ni10 | 1Cr18Ni12Mo2Ti | 00Cr17Ni14Mo2 | 1Cr13 |
螺栓 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr17Ni2 | 1Cr17Ni2 | 35CrMoA |
螺母 | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 45 |
型號 Type | 公稱通徑 DN(mm) | 尺寸(mm) | |||||||
L | D | D1 | D2 | b-f | Z-φd | H | D0 | ||
J41W-16 | 15 | 130 | 95 | 65 | 45 | 14-2 | 4-14 | 195 | 100 |
20 | 150 | 105 | 75 | 55 | 14-2 | 4-14 | 215 | 120 | |
25 | 160 | 115 | 85 | 65 | 14-2 | 4-14 | 240 | 140 | |
32 | 180 | 135 | 100 | 78 | 16-2 | 4-18 | 250 | 160 | |
40 | 200 | 145 | 110 | 85 | 16-3 | 4-18 | 285 | 200 | |
50 | 230 | 160 | 125 | 100 | 16-3 | 4-18 | 300 | 220 | |
65 | 290 | 180 | 145 | 120 | 18-3 | 4-18 | 345 | 240 | |
80 | 310 | 195 | 160 | 135 | 20-3 | 8-18 | 350 | 280 | |
100 | 350 | 215 | 180 | 155 | 20-3 | 8-18 | 410 | 320 | |
125 | 400 | 245 | 210 | 185 | 22-3 | 8-18 | 470 | 350 | |
150 | 480 | 280 | 240 | 210 | 24-3 | 8-23 | 495 | 400 | |
200 | 600 | 335 | 295 | 265 | 26-3 | 12-23 | 580 | 450 | |
250 | 650 | 405 | 355 | 320 | 30-3 | 12-25 | 680 | 550 | |
300 | 750 | 460 | 410 | 375 | 30-3 | 12-25 | 850 | 600 | |
J41W-25 | 15 | 130 | 95 | 65 | 45 | 16-2 | 4-14 | 195 | 100 |
20 | 150 | 105 | 75 | 55 | 16-2 | 4-14 | 215 | 120 | |
25 | 160 | 115 | 85 | 65 | 16-2 | 4-14 | 240 | 140 | |
32 | 180 | 135 | 100 | 78 | 18-2 | 4-18 | 250 | 160 | |
40 | 200 | 145 | 110 | 85 | 18-3 | 4-18 | 285 | 200 | |
50 | 230 | 160 | 125 | 100 | 20-3 | 4-18 | 300 | 220 | |
65 | 290 | 180 | 145 | 120 | 22-3 | 8-18 | 345 | 240 | |
80 | 310 | 195 | 160 | 135 | 22-3 | 8-18 | 350 | 280 | |
100 | 350 | 230 | 190 | 160 | 24-3 | 8-23 | 410 | 320 | |
125 | 400 | 270 | 220 | 188 | 28-3 | 8-25 | 470 | 350 | |
150 | 480 | 300 | 250 | 218 | 30-3 | 8-25 | 495 | 400 | |
200 | 600 | 360 | 310 | 278 | 34-3 | 12-25 | 600 | 450 | |
250 | 650 | 425 | 370 | 335 | 36-3 | 12-30 | 680 | 550 | |
300 | 750 | 485 | 430 | 390 | 40-4 | 16-30 | 850 | 600 |
J41W-40R手動不銹鋼截止閥主要連接尺寸
型號 Type | 公稱通徑 DN(mm) | 尺寸(mm) | |||||||
L | D | D1 | D2 | b-f | Z-φd | H | |||
J41W-40 | 15 | 130 | 95 | 65 | 45 | 40 | 16-2 | 4-14 | 195 |
20 | 150 | 105 | 75 | 55 | 51 | 16-2 | 4-14 | 215 | |
25 | 160 | 115 | 85 | 65 | 58 | 16-2 | 4-14 | 240 | |
32 | 180 | 135 | 100 | 78 | 66 | 18-2 | 4-18 | 250 | |
40 | 200 | 145 | 110 | 85 | 76 | 18-3 | 4-18 | 285 | |
50 | 230 | 160 | 125 | 100 | 88 | 20-3 | 4-18 | 300 | |
65 | 290 | 180 | 145 | 120 | 110 | 22-3 | 8-18 | 345 | |
80 | 310 | 195 | 160 | 135 | 121 | 22-3 | 8-18 | 350 | |
100 | 350 | 230 | 190 | 160 | 150 | 24-3 | 8-23 | 410 | |
125 | 400 | 270 | 220 | 188 | 176 | 28-3 | 8-25 | 470 | |
150 | 480 | 300 | 250 | 218 | 204 | 30-3 | 12-30 | 495 | |
200 | 600 | 375 | 320 | 282 | 260 | 38-3 | 4-14 | 600 | |
J41H-64 | 15 | 170 | 105 | 75 | 55 | 41 | 18-2 | 4-18 | 230 |
20 | 190 | 125 | 90 | 68 | 51 | 20-2 | 4-18 | 250 | |
25 | 210 | 135 | 100 | 78 | 58 | 22-2 | 4-23 | 260 | |
32 | 230 | 150 | 110 | 82 | 66 | 24-2 | 4-23 | 300 | |
40 | 260 | 165 | 125 | 95 | 76 | 24-3 | 4-23 | 330 | |
50 | 300 | 175 | 135 | 105 | 88 | 26-3 | 8-23 | 380 | |
65 | 340 | 200 | 160 | 130 | 110 | 28-3 | 8-23 | 400 | |
80 | 380 | 210 | 170 | 140 | 121 | 30-3 | 8-23 | 430 | |
100 | 430 | 250 | 200 | 168 | 150 | 32-3 | 8-25 | 500 | |
125 | 500 | 295 | 240 | 202 | 176 | 36-3 | 8-30 | 600 | |
150 | 550 | 340 | 280 | 240 | 204 | 38-3 | 8-34 | 680 | |
200 | 650 | 405 | 345 | 300 | 260 | 44-3 | 12-34 | 800 |