TFT's In-Line Valve is a multi-purpose valve designed for use with 3.5, 4, 4.5 or 5 inch (89, 100, 115, 125 or 150mm) hose. Maximum operating pressure is 250 psi (17bar). Meets 900psi (62 bar) hydrostatic strength test. The aluminum casting are Hardcoat anodized, and powdercoat finished inside and out for maximum corrosion protection. The valve meets NPFA slow close requirements. Optional adjustable pressure relief valve meets NFPA 1901 (2009 edition). Optional rugged ¾ inch (19mm) air bleed valve quickly bleeds air from the lines or drains water from the valve housing. Contact TFT customer service for configurations not shown.