3 Pcs Design (Reduced Bore) Specification & Features:Design Ref. BS EN ISO 17292 (BS 5351)Three Pcs Design, Reduced Bore, Blow Out Proof Stem,Floating Ball, PTFE Seats / Seals.Quarter Turn Lever Operated.Screwed Female Ends to BS 21 / ISO 7 / NPTSocket Weld Ends to ANSI B16.11Butt Weld Ends to ANSI B16.25Ideally suited for bi-directional, on/off dutiesfor general services within the Pressure / Temperatureratings of PTFE Seals.Three-piece construction makes for easyinspection and maintenance without breakingor remaking the Pipeline.