Product : SBM Bronze Union Bonnet Horizontal Lift Check Valve Product Standard : Conforming to IS:778 Class 2 Pressure/Class/Rating : PN 25 Body Material cum Standard : GM ( IS:318 Gr.LTB2 ) Description : Screwed on cover Type of Seat : Renewable seat Type of Disc : Renewable disc Trim : SS AISI410 End Details : Screwed Female BSP Threads Parallel to BS 21 Testing & Certification Body Test Pressure : 42Kg/cm g Hyd. (600Psig. Hyd.) Seat Test Pressure : 25Kg/cm g Hyd. (355Psig. Hyd.) Our Works Test Certificate is furnished with every supply. (APS Marines & Logistics)