A47HW带扳手弹簧微启式安全阀

    2018-09-21 17:02
A47HW带扳手弹簧微启式安全阀 A47HW带扳手弹簧微启式安全
A47HW带扳手弹簧微启式安全适用于工作温度≤350℃的蒸汽、空气等介质的设备或管路上。作为超压保护装置。连接法兰标准按JB/T-94的系列
结构简述
1、弹簧微启式安全具有结构简单、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、喷嘴型座:座为位伐尔喷嘴型座,蒸汽流经座出口处时达到音速,排放系数大,座密封面堆焊钴铬钨硬质合金,耐磨抗冲蚀,寿命长。
3、热弹性瓣: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,克服安全在介质压力下临近整定压力时的前泄现象。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,使门背压降低。下调时,使门背压提高。
 
安装说明
1、安全必须垂直安装,并最好直接安装在容器或管道的接头上。接头内径应不小于安全的进口通径。
2、 安全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带来不应有的热应力。排放管内径应比门出口直径大,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上,应固定在建筑上。排放管的中心线体的中心线间距离尽可能的短。对每台安全都应单独装设排放管。
3、消声器的出口处要有足够的面积,防止产生背压影响门的排放能力。

主要零件材料

 

NO零件名称材料
1WCB
2ZG2Cr13
3调节圈ZG2Cr13
42Cr13
5导向套2Cr13
6ZG230-450
7弹簧50CrVA
82Cr13
9扳手ZG200-400
10调整螺杆45
11保护罩ZG200-400
 密封面材料"H"堆焊D507,"Y"堆焊Co基硬质合金

 

主要外形尺寸

 

型号公称通径doDKgg1bff1Z-?dDN’D1K1g2g’b1f’f1’Z1-?d1LL1≈H
A47H-16C201510575/55162/4-14201057555/162/4-1410085270
252011585/65162/4-14251158565/162/4-1410085270
3225140100/78182/4-183214010078/182/4-18115100312
4032150110/85183/4-184015011085/183/4-18120110320
5040165125/100203/4-1850165125100/203/4-18135120390
6550185145/120203/4-1865185145120/203/4-18140130395
8065200160/135203/8-1880200160135/203/8-18160135400
10080220180/155223/8-18100220180155/223/8-18170160600
125100250210/185223/8-18125250210185/223/8-18190190620
150125285240/210243/8-23150285240210/243/8-23205195625
200150340295/265263/12-23200340295265/263/12-23240230798
250200405355/320303/12-26250405355320/303/12-26350320981
300250460410/375304/12-26300460410375/304/12-263503201005
A47H-25201510575/55162/4-14201057555/162/4-1410085270
252011585/65162/4-14251158565/162/4-1410085270
3225140100/78182/4-183214010078/182/4-18115100312
4032150110/85183/4-184015011085/183/4-18120110320
5040165125/100203/4-1850165125100/203/4-18135120390
6550185145/120223/8-1865185145120/203/4-18140130395
8065200160/135243/8-1880200160135/203/8-18160135400
10080230190/160243/8-23100220180155/203/8-18170160600
125100270220/188283/8-26125250210185/223/8-18190190620
150125300250/218303/8-26150285240210/243/8-23205195625
200150360310/278343/12-26200340295265/263/12-23240230798
250200425370/332363/12-30250405355320/303/12-26350320981
300250485430/390404/16-30300460410375/304/12-263503201005
A47H-40201510575515516244-14201057555/162/4-1410085270
252011585586516244-14251158565/162/4-1410085270
3225140100667818244-183214010078/182/4-18115100312
4032150110768518344-184015011085/183/4-18120110320
50401651258810020344-1850165125100/203/4-18135120390
655018514511012022348-1865185145120/203/4-18140130395
806520016012113522348-1880200160135/203/8-18160135400
100802351901501602434.58-23100220180155/223/8-18170160600
1251002702201761882834.58-26125250210185/223/8-18190190620
1501253002502042183034.58-26150285240210/243/8-23205195625
2001503753202602823834.512-30200340295265/263/12-23240230798
2502004503853133454234.512-34250405355320/303/12-26350320981
3002505154503644084644.516-34300460410375/304/12-263503201005
A47H-64 A47Y-64201513090516820244-182010575555116244-1410095301
2520140100587822244-182511585655816244-1410095301
3225155110668224244-2332140100786618244-18115105312
4032170125769524344-2340150110857618344-18135115366
50401801358810526344-23501651251008820344-18160125396
655020516011013028348-236518514512011022348-18175160570
806521517012114030348-238020016013512122348-18175160565
100802502001501683234.58-261002351901601502434.58-23190180597
1501003452802042403834.58-341503002502182043034.58-26280260738
A47H-100 A47Y-100201513090516822244-182010575555116244-1410095301
2520140100587824244-182511585655816244-1410095301
3225155110668224244-2332140100786618244-18115105312
4032170125769526344-2340150110857618344-18135115366
50401951458811228344-26501651251008820344-18160125396
655022017011013832348-266518514512011022