Description

This�type�of�check�valves�are�used�to�stainless�steel�pipe�system,in�order�to�prevent�the�fouid�flowing�back.
Work�Principle:
Check�valve�is�a�type�of�valve�which�open�or�close�the�valve�disc�rely�on�the�medium�flow�itself.The�check�valve�disc�will�open�when�the�pressure�of�stem�bottom�exceed�the�stem�above�and�the�spring.The�check�valve�disc�will�close�when�the�two�pressure�are�equalled.So�that�the�flow�goes�one�way�in�the�pipeline,and�prevent�the�fluid�flowingback,avoid�the�accidents.
Various�standards�of�valves�can�be�provided�to�clients:DIN,3A,SMS,ISO/IDF,BS/RJT,ASME/BPE�etc.
Technical�Data
Materal:1.Contact�with�the�product�components***4/**4L/**6L,Forging
��������������2.Materal�No�contact�with�the�product�components***4
Sealing�material:1.Standard-EPDM(Working�Temperature:**0~***5�C)
�����������������������������2.Option-�SILICONE�(�Working�Temperature:**0***0�C)
�����������������������������������������������VITON�(�Working�Temperature:**0***0�C)
Surface�treatment:1.Inside�surface�treatment�(Ra?0.4~0.8um)
���������������������������������2.Surface�treatment�(Ra?0.8~1.6um)
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