2 EATONAerospace Group TF100-86F May 2013 Eaton’s Carter Model 61654 Hydrant Pit Valve is a family of valves that includes lanyard, air or dual air/lanyard operated pilot valves, with the latter available with a defueling option. The latest Model 61654 Hydrant Pit Valves meet all requirements of API/IP Bulletin 1584, 3rd Edition, including the new breakaway and strength requirements. The basic hydrant pit valve consists of three basic parts, lower valve assembly, upper valve assembly (or API outlet adapter) and either the standard pilot valve or one of three patented pilot valve actuators (Model 64230, Model 64231 and Model 64280), available as Option X. The lower valve assembly contains an isolation valve which will allow the removal and servicing of the upper valve assembly and the pilot valve assembly while the pit valve is still installed. (See manual SM61654 for proper instructions). The upper portion of all versions of Model 61654 are now furnished with a replaceable part that contains the interface with the hydrant coupler. This minimizes replacement parts expense and allows easy replacement of the outlet wearing surfaces. Model 61654 Hydrant Pit Valves are essentially identical to Model 60554 valves except for the inlet flange, which is designed to mate with a 6-inch ANSI 150 lb flange rather than a 4-inch flange. Model 61654 Hydrant Pit Valve is designed to minimize the propagation of surge pressure shocks into the upstream piping system during closure of the valve. Features • Standard inlet flange mates with 4-inch 150 lb ANSI flange and outlet adapter in per API Bulletin 1584 • Two-piece upper half standard, replaceable API connection of stainless steel • Closing time is 2-5 seconds • New pilotless valve reduces maintenance costs, lanyard, air or dual air/lanyard operated pilot valve available (for small or large pit applications) • Servicing valve is standard to provide means to remove the upper valve assembly and pilot valve assembly with the unit still installed • Six position product selection optional • 10- or 20-mesh screen options available • All seals are field replaceable • Large pressure equalizing valve in the outlet is standard • Defueling capability optional with any air or dual air/ lanyard operated pilot • Ductile iron epoxy coated for corrosion protection • Main piston well guided to minimize piston seal wear • Dual pilot adds true deadman backup to coupler, same as air operated pilot. Hydrant valve is automatically closed at the end of the refueling operation. Lanyard operation can also be used with Option X valves. Model Descriptions There are five basic valves to which various modifications may be added by option letters as shown in the table on page 4. The five basic units are as follows: • Model 61654D —Twopiece aluminum/stainless steel API adapter, lanyard operated pilot valve for manual on/off control. Valve allows flow in the fueling direction only. (Defueling possible if outlet pressure does not exceed 21 psig [1.448 bar]) • Model 61654E —Two-piece aluminum/stainless steel API adapter, air operated pilot valve for deadman control. Valve allows flow in the fueling direction only. (Defueling possible if outlet pressure does not exceed 21 psig [1.448 bar]) • Model 61654J —Two-piece aluminum/stainless steel API adapter air operated pilot valve for deadman control with defuel control to allow flow of fuel in either fueling or defueling direction • Model 61654U —Twopiece aluminum/stainless steel API adapter, dual lanyard/air operated pilot valve. Valve allows flow in the fueling direction only. (Defueling possible if outlet pressure does not exceed 21 psig [1.448 bar] or can be combined with Option J for full flow defuel). • Model 61654X — Valve with the major operating part of the pilot valve contained on a quick disconnect actuator assembly located on the hydrant servicer hose. Can Design Concepts be used as air/fuel pressure operation (with Model 64230 actuator assembly), with lanyard backup (with Model 64231 Actuator Assembly) or as a push-to-connect operation (with Model 64280 actuator assembly). Actuator assemblies ordered separately. U.S. Pat. No. 7,762,274 Model 64231 Pilot Valve Actuator with lanyard override Model 64280 Pilot Valve Actuator Model 64230 Pilot Valve Actuator
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