德国奥莱斯OLES进口带扳手弹簧微启式安全阀
【进口带扳手弹簧微启式安全阀】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*的激光淬火技术,提高了硬度、耐磨性、抗冲抗性。
1. Spring full-open safety valve with wrench has the characteristics of simple structure, good sealing performance, accurate opening pressure, large discharge capacity, small pressure difference of return seat and convenient adjustment.
2. Nozzle seat: Valle nozzle seat, steam flow through the outlet of the seat to achieve sound speed, discharge coefficient is large, seating sealing surface surfacing cobalt chromium tungsten carbide, wear and erosion resistance, long service life.
3. Thermoelastic valve disc: The valve disc is designed as a thermoelastic structure, which utilizes its tiny deformation under the medium pressure to improve the sealing ability and overcome the leakage phenomenon of the safety valve near the setting pressure under the medium pressure. The valve seal surface adopts advanced laser quenching technology, which improves hardness, wear resistance and impact resistance.
【进口带扳手弹簧微启式安全阀】安装说明:
1、安全阀必须垂直安装,并hao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。
【进口带扳手弹簧微启式安全阀】应用:
此类安全阀应用在蒸汽介质是一般有一个突然全开动作,此突开动作时的压力为整定压力(突跳压力);应用在空气介质是,先打开与进口压力增加开高呈比例升高,然后再突然起跳全开,称二段式开启;一般不可用于液体介质。