一、进口法兰微启式安全阀产品概述 品牌:美国威盾VTON 进口法兰微启式安全阀,Flange enlighten type safety valve,也叫法兰式微启安全阀,法兰呆扳手安全阀,微启式带扳手安全阀,是指法兰连接,微启式结构,靠弹簧开启和关闭,带扳手的安全阀。 美国威盾VTON法兰微启式安全阀适用于工作温度≤350℃的蒸汽、空气等介质的设备或管路上。作为超压保护装置。   二、进口法兰微启式安全阀技术参数 口径:DN15-350 公称压力:PN16-PN320 公称温度:-40℃-550℃ 连接方式:法兰 阀体材质:铸钢,不锈钢304、316、316L 起跳压力:PN16-PN320 适用介质:水,蒸汽,油品以及腐蚀性介质   三、进口法兰微启式安全阀结构特点 1、弹簧微启式安全阀具有结构简单、密封性能好、开启压力准确、排放能力大、回座压差小、调整方便等特点。    2、喷嘴型阀座:阀座为位伐尔喷嘴型阀座,蒸汽流经阀座出口处时达到音速,排放系数大,阀座密封面堆焊钴铬钨硬质合金,耐磨抗冲蚀,寿命长。    3、热弹性阀瓣:阀瓣设计为热弹性结构,利用其在介质压力下微小的变形,提高密封能力,克服安全阀在介质压力下临近整定压力时的前泄现象。阀瓣密封面采用先进的激光淬火技术,提高了硬度、耐磨性、抗冲抗性。    4、调节螺母:通过调整调节螺母,调整弹簧压缩量,使阀门能够很方便、很迅速地获得准确的整定压力。    5、背压调整套:调整阀瓣背压的辅助机构,通过背压调整套调整,可获得合适的回座压差。上调时,使阀门背压降低。下调时,使阀门背压提高。   四、进口法兰微启式安全阀连接尺寸  
 型号  | 公称通径  | do  | D  | K  | g  | g1  | b  | f  | f1  | Z-d  | DN  | D1  | K1  | g2  | g  | b1  | f  | f1  | Z1-d1  | L  | L1  | ≈H  |  PN16  | 20  | 15  | 105  | 75  | /  | 55  | 16  | 2  | /  | 4-14  | 20  | 105  | 75  | 55  | /  | 16  | 2  | /  | 4-14  | 100  | 85  | 270  |  25  | 20  | 115  | 85  | /  | 65  | 16  | 2  | /  | 4-14  | 25  | 115  | 85  | 65  | /  | 16  | 2  | /  | 4-14  | 100  | 85  | 270  |  32  | 25  | 140  | 100  | /  | 78  | 18  | 2  | /  | 4-18  | 32  | 140  | 100  | 78  | /  | 18  | 2  | /  | 4-18  | 115  | 100  | 312  |  40  | 32  | 150  | 110  | /  | 85  | 18  | 3  | /  | 4-18  | 40  | 150  | 110  | 85  | /  | 18  | 3  | /  | 4-18  | 120  | 110  | 320  |  50  | 40  | 165  | 125  | /  | 100  | 20  | 3  | /  | 4-18  | 50  | 165  | 125  | 100  | /  | 20  | 3  | /  | 4-18  | 135  | 120  | 390  |  65  | 50  | 185  | 145  | /  | 120  | 20  | 3  | /  | 4-18  | 65  | 185  | 145  | 120  | /  | 20  | 3  | /  | 4-18  | 140  | 130  | 395  |  80  | 65  | 200  | 160  | /  | 135  | 20  | 3  | /  | 8-18  | 80  | 200  | 160  | 135  | /  | 20  | 3  | /  | 8-18  | 160  | 135  | 400  |  100  | 80  | 220  | 180  | /  | 155  | 22  | 3  | /  | 8-18  | 100  | 220  | 180  | 155  | /  | 22  | 3  | /  | 8-18  | 170  | 160  | 600  |  125  | 100  | 250  | 210  | /  | 185  | 22  | 3  | /  | 8-18  | 125  | 250  | 210  | 185  | /  | 22  | 3  | /  | 8-18  | 190  | 190  | 620  |  150  | 125  | 285  | 240  | /  | 210  | 24  | 3  | /  | 8-23  | 150  | 285  | 240  | 210  | /  | 24  | 3  | /  | 8-23  | 205  | 195  | 625  |  200  | 150  | 340  | 295  | /  | 265  | 26  | 3  | /  | 12-23  | 200  | 340  | 295  | 265  | /  | 26  | 3  | /  | 12-23  | 240  | 230  | 798  |  250  | 200  | 405  | 355  | /  | 320  | 30  | 3  | /  | 12-26  | 250  | 405  | 355  | 320  | /  | 30  | 3  | /  | 12-26  | 350  | 320  | 981  |  300  | 250  | 460  | 410  | /  | 375  | 30  | 4  | /  | 12-26  | 300  | 460  | 410  | 375  | /  | 30  | 4  | /  | 12-26  | 350  | 320  | 1005  |  PN25  | 20  | 15  | 105  | 75  | /  | 55  | 16  | 2  | /  | 4-14  | 20  | 105  | 75  | 55  | /  | 16  | 2  | /  | 4-14  | 100  | 85  | 270  |  25  | 20  | 115  | 85  | /  | 65  | 16  | 2  | /  | 4-14  | 25  | 115  | 85  | 65  | /  | 16  | 2  | /  | 4-14  | 100  | 85  | 270  |  32  | 25  | 140  | 100  | /  | 78  | 18  | 2  | /  | 4-18  | 32  | 140  | 100  | 78  | /  | 18  | 2  | /  | 4-18  | 115  | 100  | 312  |  40  | 32  | 150  | 110  | /  | 85  | 18  | 3  | /  | 4-18  | 40  | 150  | 110  | 85  | /  | 18  | 3  | /  | 4-18  | 120  | 110  | 320  |  50  | 40  | 165  | 125  | /  | 100  | 20  | 3  | /  | 4-18  | 50  | 165  | 125  | 100  | /  | 20  | 3  | /  | 4-18  | 135  | 120  | 390  |  65  | 50  | 185  | 145  | /  | 120  | 22  | 3  | /  | 8-18  | 65  | 185  | 145  | 120  | /  | 20  | 3  | /  | 4-18  | 140  | 130  | 395  |  80  | 65  | 200  | 160  | /  | 135  | 24  | 3  | /  | 8-18  | 80  | 200  | 160  | 135  | /  | 20  | 3  | /  | 8-18  | 160  | 135  | 400  |  100  | 80  | 230  | 190  | /  | 160  | 24  | 3  | /  | 8-23  | 100  | 220  | 180  | 155  | /  | 20  | 3  | /  | 8-18  | 170  | 160  | 600  |  125  | 100  | 270  | 220  | /  | 188  | 28  | 3  | /  | 8-26  | 125  | 250  | 210  | 185  | /  | 22  | 3  | /  | 8-18  | 190  | 190  | 620  |  150  | 125  | 300  | 250  | /  | 218  | 30  | 3  | /  | 8-26  | 150  | 285  | 240  | 210  | /  | 24  | 3  | /  | 8-23  | 205  | 195  | 625  |  200  | 150  | 360  | 310  | /  | 278  | 34  | 3  | /  | 12-26  | 200  | 340  | 295  | 265  | /  | 26  | 3  | /  | 12-23  | 240  | 230  | 798  |  250  | 200  | 425  | 370  | /  | 332  | 36  | 3  | /  | 12-30  | 250  | 405  | 355  | 320  | /  | 30  | 3  | /  | 12-26  | 350  | 320  | 981  |  300  | 250  | 485  | 430  | /  | 390  | 40  | 4  | /  | 16-30  | 300  | 460  | 410  | 375  | /  | 30  | 4  | /  | 12-26  | 350  | 320  | 1005  |  PN40  | 20  | 15  | 105  | 75  | 51  | 55  | 16  | 2  | 4  | 4-14  | 20  | 105  | 75  | 55  | /  | 16  | 2  | /  | 4-14  | 100  | 85  | 270  |  25  | 20  | 115  | 85  | 58  | 65  | 16  | 2  | 4  | 4-14  | 25  | 115  | 85  | 65  | /  | 16  | 2  | /  | 4-14  | 100  | 85  | 270  |  32  | 25  | 140  | 100  | 66  | 78  | 18  | 2  | 4  | 4-18  | 32  | 140  | 100  | 78  | /  | 18  | 2  | /  | 4-18  | 115  | 100  | 312  |  40  | 32  | 150  | 110  | 76  | 85  | 18  | 3  | 4  | 4-18  | 40  | 150  | 110  | 85  | /  | 18  | 3  | /  | 4-18  | 120  | 110  | 320  |  50  | 40  | 165  | 125  | 88  | 100  | 20  | 3  | 4  | 4-18  | 50  | 165  | 125  | 100  | /  | 20  | 3  | /  | 4-18  | 135  | 120  | 390  |  65  | 50  | 185  | 145  | 110  | 120  | 22  | 3  | 4  | 8-18  | 65  | 185  | 145  | 120  | /  | 20  | 3  | /  | 4-18  | 140  | 130  | 395  |  80  | 65  | 200  | 160  | 121  | 135  | 22  | 3  | 4  | 8-18  | 80  | 200  | 160  | 135  | /  | 20  | 3  | /  | 8-18  | 160  | 135  | 400  |  100  | 80  | 235  | 190  | 150  | 160  | 24  | 3  | 4.5  | 8-23  | 100  | 220  | 180  | 155  | /  | 22  | 3  | /  | 8-18  | 170  | 160  | 600  |  125  | 100  | 270  | 220  | 176  | 188  | 28  | 3  | 4.5  | 8-26  | 125  | 250  | 210  | 185  | /  | 22  | 3  | /  | 8-18  | 190  | 190  | 620  |  150  | 125  | 300  | 250  | 204  | 218  | 30  | 3  | 4.5  | 8-26  | 150  | 285  | 240  | 210  | /  | 24  | 3  | /  | 8-23  | 205  | 195  | 625  |  200  | 150  | 375  | 320  | 260  | 282  | 38  | 3  | 4.5  | 12-30  | 200  | 340  | 295  | 265  | /  | 26  | 3  | /  | 12-23  | 240  | 230  | 798  |  250  | 200  | 450  | 385  | 313  | 345  | 42  | 3  | 4.5  | 12-34  | 250  | 405  | 355  | 320  | /  | 30  | 3  | /  | 12-26  | 350  | 320  | 981  |  300  | 250  | 515  | 450  | 364  | 408  | 46  | 4  | 4.5  | 16-34  | 300  | 460  | 410  | 375  | /  | 30  | 4  | /  | 12-26  | 350  | 320  | 1005  |  PN64  | 20  | 15  | 130  | 90  | 51  | 68  | 20  | 2  | 4  | 4-18  | 20  | 105  | 75  | 55  | 51  | 16  | 2  | 4  | 4-14  | 100  | 95  | 301  |  25  | 20  | 140  | 100  | 58  | 78  | 22  | 2  | 4  | 4-18  | 25  | 115  | 85  | 65  | 58  | 16  | 2  | 4  | 4-14  | 100  | 95  | 301  |  32  | 25  | 155  | 110  | 66  | 82  | 24  | 2  | 4  | 4-23  | 32  | 140  | 100  | 78  | 66  | 18  | 2  | 4  | 4-18  | 115  | 105  | 312  |  40  | 32  | 170  | 125  | 76  | 95  | 24  | 3  | 4  | 4-23  | 40  | 150  | 110  | 85  | 76  | 18  | 3  | 4  | 4-18  | 135  | 115  | 366  |  50  | 40  | 180  | 135  | 88  | 105  | 26  | 3  | 4  | 4-23  | 50  | 165  | 125  | 100  | 88  | 20  | 3  | 4  | 4-18  | 160  | 125  | 396  |  65  | 50  | 205  | 160  | 110  | 130  | 28  | 3  | 4  | 8-23  | 65  | 185  | 145  | 120  | 110  | 22  | 3  | 4  | 8-18  | 175  | 160  | 570  |  80  | 65  | 215  | 170  | 121  | 140  | 30  | 3  | 4  | 8-23  | 80  | 200  | 160  | 135  | 121  | 22  | 3  | 4  | 8-18  | 175  | 160  | 565  |  100  | 80  | 250  | 200  | 150  | 168  | 32  | 3  | 4.5  | 8-26  | 100  | 235  | 190  | 160  | 150  | 24  | 3  | 4.5  | 8-23  | 190  | 180  | 597  |  150  | 100  | 345  | 280  | 204  | 240  | 38  | 3  | 4.5  | 8-34  | 150  | 300  | 250  | 218  | 204  | 30  | 3  | 4.5  | 8-26  | 280  | 260  | 738  |  PN100  | 20  | 15  | 130  | 90  | 51  | 68  | 22  | 2  | 4  | 4-18  | 20  | 105  | 75  | 55  | 51  | 16  | 2  | 4  | 4-14  | 100  | 95  | 301  |  25  | 20  | 140  | 100  | 58  | 78  | 24  | 2  | 4  | 4-18  | 25  | 115  | 85  | 65  | 58  | 16  | 2  | 4  | 4-14  | 100  | 95  | 301  |  32  | 25  | 155  | 110  | 66  | 82  | 24  | 2  | 4  | 4-23  | 32  | 140  | 100  | 78  | 66  | 18  | 2  | 4  | 4-18  | 115  | 105  | 312  |  40  | 32  | 170  | 125  | 76  | 95  | 26  | 3  | 4  | 4-23  | 40  | 150  | 110  | 85  | 76  | 18  | 3  | 4  | 4-18  | 135  | 115  | 366  |  50  | 40  | 195  | 145  | 88  | 112  | 28  | 3  | 4  | 4-26  | 50  | 165  | 125  | 100  | 88  | 20  | 3  | 4  | 4-18  | 160  | 125  | 396  |  65  | 50  | 220  | 170  | 110  | 138  | 32  | 3  | 4  | 8-26  | 65  | 185  | 145  | 120  | 110  | 22  | 3  | 4  | 8-18  | 175  | 160  | 570  |  80  | 65  | 230  | 180  | 121  | 148  | 34  | 3  | 4  | 8-26  | 80  | 200  | 160  | 135  | 121  | 22  | 3  | 4  | 8-18  | 175  | 160  | 565  |  100  | 80  | 265  | 210  | 150  | 172  | 38  | 3  | 4.5  | 8-30  | 100  | 235  | 190  | 160  | 150  | 24  | 3  | 4.5  | 8-23  | 190  | 180  | 597  |  150  | 100  | 355  | 290  | 204  | 250  | 46  | 3  | 4.5  | 12-34  | 150  | 300  | 250  | 218  | 204  | 30  | 3  | 4.5  | 8-26  | 280  | 260  | 738  |  
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