Product : Bronze Relief Valve Type of Pattern : Straight Type Body Material cum Standard : GM ( IS:318 Gr.LTB2 ) Description : Spring Loaded Open Discharge Type of Seat : Integral seat Type of Disc : Renewable disc Trim : Cu-Alloy End Details : Screwed male BSP Parallel threads to BS 21. Testing & Certification Hydraulic Test Pressure : 300 Psig.Hyd. Note : Please advise set pressure while placing order Working Pressure : Max.150 Psig. Our Works Test Certificate is furnished with every supply. (APS Marines & Logistics)