2 EATONAerospace Group TF100-84D May 2013 Eaton’s Carter product line includes several hydrant pit valve models. Model 61524 2½-inch Hydrant Valve is designed to provide deadman control of the refueling operation within the hydrant pit. Both air and lanyard operation is available. This model is available with either 6 or 4-inch inlet flanges and both terminate with the 2½-inch international standard three-lug aircraft bayonet adapter. Now also available with an adapter kit to install the unit in older 12 and 13-inch diameter pits with 3-inch mounting flanges. Model 61524 utilizes many of the same parts as are used in Eaton’s other hydrant valve models. The basic valve assembly consists of three parts, lower valve assembly, upper valve assembly and the pilot valve. The lower valve assembly contains a small isolation valve which will allow removal and servicing of the upper valve assembly and the pilot valve while the pit Design Concepts valve is under pressure (see maintenance manual SM61524 for proper instructions for use). Model 61524 is designed to minimize the propagation of surge pressure shocks into the upstream piping system during closure of the valve. Features yy Closing time: 2-5 sec Opening time: 5-10 sec yy Either lanyard or air operated pilot valve available yy Standard inlet flange mates with 4-inch 150 lb ANSI flange standard (optional 6-inch 300 lb inlet available) yy Large pressure equalizing valve in the outlet is standard yy Defueling capability optional with air operated pilot valve yy Main piston well-guided to minimize piston seal wear yy Ductile iron is epoxy coated for corrosion protection yy Minimum of bonded seals utilized to reduce maintenance costs Technical Information yy Working pressure: 300 psi (20.68 bar) yy Closing time: 2 to 5 sec yy Opening time: 5 to10 sec (from zero to 600 USgpm [2271 l/min]) yy Overshoot: 30.0 gals maximum at 600 gpm (2271 l/min) yy Pilot valve air pressure required for options E or J — 60 psi min (4.136 bar) yy Materials: Outer housings — A536, grade 60-40-18 ductile iron Bayonet adapter (outlet) — aluminum bronze Trim— stainless steel and aluminum alloy Mating Parts Model 61524 Hydrant Valve will mate Eaton’s Carter Model 61445 Hydrant Couplers, older Model 60445 couplers (superseded by Model 61445), or any other standard 2½-inch coupler, regardless of brand.
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