PSV Type 의 선정 1) Conventional Type - Built-up Back Press.가 Set Press.의 10% 미만으로 일반적인 유체의 조건에 사용 2) Bellows Type - Built-up Back Press.가 Set Press.의 10%를 넘는 경우 사용 (상한선은 Maker마다 다르지만 보통 10~50% Cover) - Superimposed Back Press.가 Variable인 경우 사용 - Fluid가 부식성 유체,유독성 유체 & 고점도 유체인 경우 사용
![[계장/PRD] PSV Type & Specification](https://blogimgs.pstatic.net/nblog/mylog/post/og_default_image_160610.png)
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ASMEUVStamp
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PSVCeritification
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PSV
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Pilot
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KOSHA
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KGS
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Conventional
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Bellows
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BackPressure
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SetPressure
![[계장/Valve] Valve의 Characteristic](https://mblogthumb-phinf.pstatic.net/MjAyMzAzMjhfNTcg/MDAxNjc5OTcxMDY2ODEz.WdhV7r15qAJ6OmT_xq4R3N1OsdWWicyV-0wyouHD_UQg.GEOC2goZTKM6KVXhTd621w4MQPEYIYTvpjFQXrQysiEg.PNG.ahrah23/Image.png?type=w2)
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![[계장/PRD] PSV(Pressure Safey & Relief Valve) 관련 용어](https://mblogthumb-phinf.pstatic.net/MjAyMzAzMzFfMjA4/MDAxNjgwMjQxMTUwNDgy.sKWS-52QstJeTv4Z0Odwr-ouy1O2PciwMpmTNf6inF0g.S5RVY6WwRDMn8qyGdScjownkDQr2a3uXO9gz2UyRBqQg.PNG.ahrah23/image.png?type=w2)
![[공정] PSV Design Basis (Load Calculation)](https://mblogthumb-phinf.pstatic.net/MjAyMzA0MDNfMTIw/MDAxNjgwNTI2NTQyNDA4.l68vTKGXweOTFYUTbqEcbpddI8qDBEU0yKW1-L_yqWog.QLKT3-QusXMAIa3LvCuHRtbnel0w4Je4uoAzgje2Qcog.PNG.ahrah23/Image.png?type=w2)
![[MTL] Forging & Casting 비교](https://mblogthumb-phinf.pstatic.net/MjAyMzA0MTBfMjgy/MDAxNjgxMTM4MjU2ODA4.5A_F-MHds9N8O-KMmqCB7QM4VrOxuVgC5tGhUKSFOtYg.DzCbqRmh5y4QDQyLbOWKZJ-9bANH4CwFiZ0SxYZNbaQg.PNG.ahrah23/Image.png?type=w2)
![[계장/Valve] PST (Partial Stroke Test) 개요](https://mblogthumb-phinf.pstatic.net/MjAyMzA0MTlfMjg0/MDAxNjgxODY0NDc4NTY0.sSDUT6D-X28NM-oyHU69L0U_DWql3daX76EU_U2KzG4g.icAz_BDsSk-HlPnFzdewY09_4SyezWhQpFNhxYokvc8g.PNG.ahrah23/Image.png?type=w2)