Valve, relief; type: safety relief valve; design rating ANSI 150 × 150 lb RF; body material ASTM A216-WCB carbon steel; valve size 1 in × 2 in; trim nozzle material A276-304 HF; disc material A564-630; flanged RF connection; relieving pressure 0.3709829 MPa; set pressure 2.5 kgf/cm²(g); orifice size 181.5 mm²; relieving temperature rating 138.5 °C; soft goods: N/A; manufacturer Fukui Seisakusho Co., Ltd.; model REC161-STM(T); serial number 620669 A/B; test documentation required: mill test certificate and calibration certificates.