H64C-焊接止回阀H64C-上海自龙阀门制造有限公司

产品概述

上海自龙阀门制造有限公司生产的止回阀是能自动阻止流体倒流的阀门。止回阀的阀瓣在流体压力作用下开启，流体从进口侧流向出口侧。当进口侧压力低于出口侧时，阀瓣在流体压差、本身重力等因素作用下自动关闭以防止流体倒流。旋启式止回阀的阀瓣绕转轴作旋转运动。其流体阻力一般小于升降式止回阀，它适用于较大口径的场合。旋启式止回阀根据阀瓣的数目可分为单瓣旋启式、双瓣旋启式及多瓣旋启式三种。单瓣旋启式止回阀一般适用于中等口径的场合。大口径管路选用单瓣旋启式止回阀时，为减少水锤压力，采用能减小水锤压力的缓闭止回阀。双瓣旋启式止回阀适用于大中口径管路。对夹双瓣旋启式止回阀结构小、重量轻，是一种发展较快的止回阀；多瓣旋启式止回阀适用于大口径管道路。

适用范围

旋启式止回阀适用于公称压力PN1.0MPa~42.0MPa、Class150-2500；公称通径DN15~1200mm、NPS1/2~48；工作温度－196~540℃的各种管路上，用于防止介质倒流。通过选用不同的材质(WCB,CF8(M),CF3(M),1Gr5Mo,15CrMo1V，可适用于水、蒸汽、油品、硝酸、醋酸、强氧化性介质及尿素等多种介质。主要用于石油、化工、制药、化肥、电力等管路上。

结构

主要零部件	阀体、阀盖、摇杆	WCB	CF8	CF8M	WC6、WC9
	阀瓣	WCB堆Cr13或硬质合金	CF8堆硬质合金	CF8M堆硬质合金	WC6、WC9堆硬质合金
	阀座	25堆Cr13或硬质合金	304堆硬质合金	316堆硬质合金	20Cr1MoV堆硬质合金
	垫片	软铁、XB450	聚四氟乙烯	聚四氟乙烯	不锈钢+耐酸石棉缠绕垫
	螺栓	35CrMoA	35CrMoA	35CrMoA	25Cr1Mo1V
	螺母	45	45	45	35CrMoA
主要参数	适用介质	油品、水、蒸汽	硝酸类	醋酸类	油品、水、蒸汽
主要参数	适用温度 ℃	≤425	≤200	≤200	≤550

型号	公称通径 NPS(in)	压力级 Class	主要结构尺寸(mm)					阀体材料	性能规范
型号	公称通径 NPS(in)	压力级 Class	D	D₁	L	L₁	H	阀体材料	适用温度(℃)	适用介质
SFH-64C150C	2"	150			203		170	WCB	≤425	水、油品、蒸气等
"	3"	"			241		185	"	"	"
"	4"	"			292		215	"	"	"
"	6"	"			356		260	"	"	"
"	8"	"			495		300	"	"	"
"	10"	"			622		350	"	"	"
"	12"	"			699		400	"	"	"
"	14"	"			787		450	"	"	"
"	16"	"			864		480	"	"	"
"	18"	"			978		540	"	"	"
"	20"	"			978		600	"	"	"
"	24"	"			1295		680	"	"	"
SFH-64C300C	2"	300			267		170	WCB	≤425	水、油品、蒸气等
"	3"	"			318		215	"	"	"
"	4"	"			356		235	"	"	"
"	6"	"			445		300	"	"	"
"	8"	"			533		340	"	"	"
"	10"	"			622		350	"	"	"
"	12"	"			711		420	"	"	"
"	14"	"			838		480	"	"	"
"	16"	"			864		520	"	"	"
"	18"	"			978		600	"	"	"
"	20"	"			1016		670	"	"	"
"	24"	"			1346		750	"	"	"
SFH-64C600C	2"	600			292		175	WCB	≤425	水、油品、蒸气
"	3"	"			356		230	"	"	"
"	4"	"			432		295	"	"	"
"	6"	"			559		360	"	"	"
"	8"	"			660		400	"	"	"
"	10"	"			787		460	"	"	"
"	12"	"			838		520	"	"	"
"	14"	"			889		560	"	"	"
"	16"	"			991		650	"	"	"
"	18"	"			1092		730	"	"	"
"	20"	"			1194		800	"	"	"
"	24"	"			1397		900	"	"	"