一、 带扳手弹簧全启式安全阀 概述
A48Y型带扳手弹簧全启式安全阀适用于工作温度≤350℃的蒸汽、空气等介质的设备和管路上。A44Y带扳手弹簧全启式安全阀适用于工作温度≤300℃的空气、石油等介质的设备或管路上,作为超压保护装置。连接法兰标准PN<6.4MPa按JB/T-94系列1。PN≥6.4MPa按JB/T-94系列2标准。
二、带扳手弹簧全启式安全阀 结构简述
1、带扳手弹簧全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。阀瓣密封面采用良好的激光淬火技术,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。
三、 带扳手弹簧全启式安全阀 安装说明
1、安全阀必须垂直安装,并直接安装在容器或管道的接头上。接头内径应不小于安全阀的进口通径。
2、安全阀的出口必须装设适当的膨胀节,以防止排放管的热膨胀给安全阀带来不应有的热应力。排放管内径应比阀门出口直径大,长度尽可能短,避免拐弯。排放管及膨胀节重量不应作用在安全阀上,应固定在建筑上。排放管的中心线与阀体的中心线间距离尽可能的短。对每台安全阀都应单独装设排放管。
3、消声器的出口处要有足够的面积,防止产生背压影响阀门的排放能力。
四、 带扳手弹簧全启式安全阀 系列型号
A48Y-16C  | A44Y-16P  | 
A48Y-25  | A44Y-25P  | 
A48Y-40  | A44Y-40P  | 
A48Y-64  | A44Y-64P  | 
A48Y-100  | A44Y-100P  | 
A44Y-16C  | A44Y-16R  | 
A44Y-25  | A44Y-25R  | 
A44Y-40  | A44Y-40R  | 
A44Y-64  | A44Y-64R  | 
A44Y-100  | A44Y-100R  | 
五、 带扳手弹簧全启式安全阀 主要零部件材料
NO.  | 零件名称  | A48Y-C A44Y-C 材料  | A44Y-P材料  | A44Y-R材料  | 
1  | 阀体  | WCB  | ZG1Cr18Ni9Ti  | CF8M  | 
2  | 阀座  | 2Cr13  | 1Cr18Ni9Ti  | 316  | 
3  | 调节圈  | ZG2Cr13  | ZG1Cr18Ni9Ti  | 0Cr18Ni12Mo2Ti  | 
4  | 反冲盘  | ZG2Cr13  | ZG1Cr18Ni9Ti  | 316  | 
5  | 阀瓣  | 2Cr13  | 1Cr18Ni9Ti  | 316  | 
6  | 导向套  | 2Cr13  | 1Cr18Ni9Ti  | 0Cr18Ni12Mo2Ti  | 
7  | 阀盖  | ZG230-450  | ZG230-450  | ZG230-450  | 
8  | 弹簧  | 50CrVA  | 50CrVA包覆氟塑料  | 50CrVA包覆氟塑料  | 
9  | 阀杆  | 2Cr13  | 1Cr18Ni9Ti  | 1Cr18Ni12Mo2Ti  | 
10  | 扳手  | ZG200-400  | ZG200-400  | ZG200-400  | 
11  | 调整螺杆  | 45  | 2Cr13  | 2Cr13  | 
12  | 保护罩  | ZG200-400  | ZG200-400  | 316  | 
密封面材料  | 堆焊Co基硬质合金  | |||
六、 带扳手弹簧全启式安全阀 外形尺寸和连接尺寸
型号  | 公称 通径  | do  | D  | K  | g  | g1  | b  | f  | f1  | Z-¢d  | DN'  | D1  | K1  | g3  | g2  | b1  | f'  | f1'  | Z1-¢d1  | L  | L1  | ≈H  | 
A48Y-16C  | 20  | 15  | 105  | 75  | 55  | 16  | 2  | 4-14  | 25  | 115  | 85  | 65  | 16  | 2  | 4-14  | 110  | 95  | 411  | ||||
25  | 16  | 115  | 85  | 65  | 16  | 2  | 4-14  | 32  | 140  | 100  | 78  | 18  | 2  | 4-18  | 110  | 95  | 411  | |||||
32  | 20  | 140  | 100  | 78  | 18  | 2  | 4-18  | 40  | 150  | 110  | 85  | 18  | 3  | 4-18  | 115  | 100  | 411  | |||||
40  | 25  | 150  | 110  | 85  | 18  | 3  | 4-18  | 50  | 165  | 125  | 100  | 20  | 3  | 4-18  | 120  | 110  | 472  | |||||
50  | 32  | 165  | 125  | 100  | 20  | 3  | 4-18  | 65  | 185  | 145  | 120  | 20  | 3  | 4-18  | 135  | 120  | 532  | |||||
65  | 40  | 185  | 145  | 120  | 20  | 3  | 4-18  | 80  | 200  | 160  | 135  | 20  | 3  | 8-18  | 160  | 140  | 556  | |||||
80  | 50  | 200  | 160  | 135  | 20  | 3  | 8-18  | 100  | 220  | 180  | 155  | 22  | 3  | 8-18  | 170  | 135  | 561  | |||||
100  | 65  | 220  | 180  | 155  | 20  | 3  | 8-18  | 125  | 250  | 210  | 185  | 22  | 3  | 8-18  | 195  | 175  | 667  | |||||
125  | 80  | 250  | 210  | 185  | 22  | 3  | 8-18  | 150  | 285  | 240  | 210  | 24  | 3  | 8-23  | 210  | 190  | 857  | |||||
150  | 100  | 285  | 240  | 210  | 24  | 3  | 8-23  | 175  | 310  | 270  | 240  | 26  | 3  | 8-23  | 255  | 230  | 915  | |||||
200  | 125  | 340  | 295  | 265  | 26  | 3  | 12-23  | 250  | 405  | 355  | 320  | 30  | 3  | 12-26  | 300  | 260  | 1073  | |||||
250  | 150  | 405  | 355  | 320  | 30  | 3  | 12-26  | 300  | 460  | 410  | 375  | 30  | 4  | 12-26  | 350  | 320  | 1307  | |||||
300  | 220  | 460  | 410  | 375  | 30  | 4  | 12-26  | 400  | 580  | 525  | 485  | 36  | 4  | 16-30  | 370  | 350  | 1233  | |||||
350  | 250  | 520  | 470  | 435  | 34  | 4  | 16-26  | 500  | 715  | 650  | 608  | 44  | 4  | 20-34  | 500  | 450  | 1711  | |||||
400  | 280  | 580  | 525  | 485  | 36  | 4  | 16-30  | 500  | 715  | 650  | 608  | 44  | 4  | 20-34  | 500  | 450  | 1780  | |||||
A48Y-25   | 20  | 15  | 105  | 75  | 55  | 16  | 2  | 4-14  | 25  | 115  | 85  | 65  | 16  | 2  | 4-14  | 110  | 95  | 411  | ||||
25  | 16  | 115  | 85  | 65  | 16  | 2  | 4-14  | 32  | 140  | 100  | 78  | 18  | 2  | 4-18  | 110  | 95  | 411  | |||||
32  | 20  | 140  | 100  | 78  | 18  | 2  | 4-18  | 40  | 150  | 110  | 85  | 18  | 3  | 4-18  | 115  | 100  | 411  | |||||
40  | 25  | 150  | 110  | 85  | 18  | 3  | 4-18  | 50  | 165  | 125  | 100  | 20  | 3  | 4-18  | 120  | 110  | 472  | |||||
50  | 32  | 165  | 125  | 100  | 20  | 3  | 4-18  | 65  | 185  | 145  | 120  | 20  | 3  | 4-18  | 135  | 120  | 532  | |||||
65  | 40  | 185  | 145  | 120  | 22  | 3  | 8-18  | 80  | 200  | 160  | 135  | 20  | 3  | 8-18  | 160  | 140  | 556  | |||||
80  | 50  | 200  | 160  | 135  | 22  | 3  | 8-18  | 100  | 220  | 180  | 155  | 22  | 3  | 8-18  | 170  | 135  | 561  | |||||
100  | 65  | 230  | 190  | 160  | 24  | 3  | 8-23  | 125  | 250  | 210  | 185  | 22  | 3  | 8-18  | 195  | 175  | 667  | |||||
125  | 80  | 270  | 220  | 188  | 28  | 3  | 8-26  | 150  | 285  | 240  | 210  | 24  | 3  | 8-23  | 210  | 190  | 857  | |||||
150  | 100  | 300  | 250  | 218  | 30  | 3  | 8-26  | 175  | 310  | 270  | 240  | 26  | 3  | 8-23  | 255  | 230  | 915  | |||||
200  | 125  | 360  | 310  | 278  | 34  | 3  | 12-26  | 250  | 405  | 355  | 320  | 30  | 3  | 12-26  | 300  | 260  | 1073  | |||||
250  | 150  | 425  | 370  | 332  | 36  | 3  | 12-30  | 300  | 460  | 410  | 375  | 30  | 4  | 12-26  | 350  | 320  | 1307  | |||||
300  | 220  | 485  | 430  | 390  | 40  | 4  | 16-30  | 400  | 580  | 525  | 485  | 36  | 4  | 16-30  | 370  | 350  | 1233  | |||||
350  | 250  | 555  | 490  | 448  | 44  | 4  | 16-34  | 500  | 715  | 650  | 608  | 44  | 4  | 20-34  | 500  | 450  | 1711  | |||||
400  | 280  | 620  | 550  | 505  | 48  | 4  | 16-36  | 500  | 715  | 650  | 608  | 44  | 4  | 20-34  | 500  | 450  | 1780  | |||||
A48Y-40  | 20  | 15  | 105  | 75  | 51  | 55  | 16  | 2  | 4  | 4-14  | 25  | 115  | 85  | 65  | 16  | 2  | 4-14  | 110  | 95  | 411  | ||
25  | 16  | 115  | 85  | 58  | 65  | 16  | 2  | 4  | 4-14  | 32  | 140  | 100  | 78  | 18  | 2  | 4-18  | 110  | 95  | 411  | |||
32  | 20  | 140  | 100  | 66  | 78  | 18  | 2  | 4  | 4-18  | 40  | 150  | 110  | 85  | 18  | 3  | 4-18  | 115  | 100  | 411  | |||
40  | 25  | 150  | 110  | 76  | 85  | 18  | 3  | 4  | 4-18  | 50  | 165  | 125  | 100  | 20  | 3  | 4-18  | 120  | 110  | 472  | |||
50  | 32  | 165  | 125  | 88  | 100  | 20  | 3  | 4  | 4-18  | 65  | 185  | 145  | 120  | 20  | 3  | 4-18  | 135  | 120  | 532  | |||
65  | 40  | 185  | 145  | 110  | 120  | 22  | 3  | 4  | 8-18  | 80  | 200  | 160  | 135  | 20  | 3  | 8-18  | 160  | 140  | 556  | |||
80  | 50  | 200  | 160  | 121  | 135  | 22  | 3  | 4  | 8-18  | 100  | 220  | 180  | 155  | 22  | 3  | 8-18  | 170  | 135  | 561  | |||
100  | 65  | 235  | 190  | 150  | 160  | 24  | 3  | 4.5  | 8-23  | 125  | 250  | 210  | 185  | 22  | 3  | 8-18  | 195  | 175  | 697  | |||
125  | 80  | 270  | 220  | 176  | 188  | 28  | 3  | 4.5  | 8-26  | 150  | 285  | 240  | 210  | 24  | 3  | 8-23  | 210  | 190  | 857  | |||
150  | 100  | 300  | 250  | 204  | 218  | 30  | 3  | 4.5  | 8-26  | 175  | 310  | 270  | 240  | 26  | 3  | 8-23  | 255  | 230  | 915  | |||
200  | 125  | 375  | 320  | 260  | 282  | 38  | 3  | 4.5  | 12-30  | 250  | 405  | 355  | 320  | 30  | 3  | 12-26  | 300  | 260  | 1073  | |||
250  | 150  | 450  | 385  | 313  | 345  | 42  | 3  | 4.5  | 12-34  | 300  | 460  | 410  | 375  | 30  | 4  | 12-26  | 350  | 320  | 1307  | |||
300  | 220  | 515  | 450  | 364  | 408  | 46  | 4  | 4.5  | 16-34  | 400  | 580  | 525  | 485  | 36  | 4  | 16-30  | 370  | 350  | 1233  | |||
350  | 250  | 580  | 510  | 422  | 465  | 52  | 4  | 5  | 16-36  | 500  | 715  | 650  | 608  | 44  | 4  | 20-34  | 500  | 450  | 1711  | |||
400  | 280  | 660  | 585  | 474  | 535  | 58  | 4  | 5  | 16-41  | 500  | 715  | 650  | 608  | 44  | 4  | 20-34  | 500  | 450  | 1711  | |||
A48Y-64   | 20  | 10  | 125  | 90  | 51  | 68  | 22  | 2  | 4  | 4-18  | 25  | 115  | 85  | 58  | 65  | 16  | 2  | 4  | 4-14  | 96  | 85  | 297  | 
25  | 16  | 140  | 100  | 58  | 78  | 22  | 2  | 4  | 4-18  | 32  | 140  | 100  | 66  | 78  | 18  | 2  | 4  | 4-18  | 110  | 100  | 310  | |
32  | 20  | 155  | 110  | 66  | 82  | 24  | 2  | 4  | 4-23  | 40  | 150  | 110  | 76  | 85  | 18  | 3  | 4  | 4-18  | 130  | 110  | 322  | |
40  | 25  | 170  | 125  | 76  | 95  | 24  | 3  | 4  | 4-23  | 50  | 165  | 125  | 88  | 100  | 20  | 3  | 4  | 4-18  | 135  | 120  | 352  | |
50  | 32  | 180  | 135  | 88  | 105  | 26  | 3  | 4  | 4-23  | 65  | 185  | 145  | 110  | 120  | 22  | 3  | 4  | 8-18  | 155  | 135  | 425  | |
65  | 40  | 205  | 160  | 110  | 130  | 28  | 3  | 4  | 8-23  | 80  | 200  | 160  | 121  | 135  | 22  | 3  | 4  | 8-18  | 175  | 160  | 570  | |
80  | 50  | 215  | 170  | 121  | 140  | 30  | 3  | 4  | 8-23  | 100  | 235  | 190  | 150  | 160  | 24  | 3  | 4.5  | 8-23  | 175  | 160  | 560  | |
100  | 65  | 250  | 200  | 150  | 168  | 32  | 3  | 4.5  | 8-26  | 125  | 270  | 220  | 176  | 188  | 28  | 3  | 4.5  | 8-25  | 195  | 195  | 690  | |
150  | 100  | 345  | 280  | 204  | 240  | 38  | 3  | 4.5  | 8-34  | 200  | 375  | 320  | 260  | 282  | 38  | 3  | 4.5  | 12-30  | 280  | 265  | 935  | |
A48Y-100  | 20  | 10  | 125  | 90  | 51  | 68  | 22  | 2  | 4  | 4-18  | 25  | 115  | 85  | 58  | 65  | 16  | 3  | 4  | 4-14  | 96  | 85  | 297  | 
25  | 16  | 140  | 100  | 58  | 78  | 24  | 2  | 4  | 4-18  | 32  | 140  | 100  | 66  | 78  | 18  | 2  | 4  | 4-18  | 110  | 100  | 310  | |
32  | 20  | 155  | 110  | 66  | 82  | 24  | 2  | 4  | 4-23  | 40  | 150  | 110  | 76  | 85  | 18  | 2  | 4  | 4-18  | 130  | 110  | 322  | |
40  | 25  | 170  | 125  | 76  | 95  | 26  | 3  | 4  | 4-23  | 50  | 165  | 125  | 88  | 100  | 20  | 3  | 4  | 4-18  | 135  | 120  | 352  | |
50  | 32  | 195  | 145  | 88  | 112  | 28  | 3  | 4  | 4-26  | 65  | 185  | 145  | 110  | 120  | 22  | 3  | 4  | 8-18  | 155  | 135  | 425  | |
65  | 32  | 220  | 170  | 110  | 138  | 32  | 3  | 4  | 8-26  | 80  | 200  | 160  | 121  | 135  | 22  | 3  | 4  | 8-18  | 175  | 160  | 570  | |
80  | 40  | 230  | 180  | 121  | 148  | 34  | 3  | 4  | 8-26  | 100  | 235  | 190  | 150  | 160  | 24  | 3  | 4.5  | 8-23  | 175  | 160  | 560  | |
100  | 50  | 265  | 210  | 150  | 172  | 38  | 3  | 4.5  | 8-30  | 125  | 270  | 220  | 176  | 188  | 28  | 3  | 4.5  | 8-25  | 195  | 195  | 690  | |
150  | 80  | 355  | 290  | 204  | 250  | 46  | 3  | 4.5  | 12-34  | 200  | 375  | 320  | 260  | 282  | 38  | 3  | 4.5  | 12-30  | 280  | 265  | 935  |