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IR 457-66-U Data Sheet

IR 457-66-U Data Sheet
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BERMAD Irrigation 400 Series Reservoirs Level and Flow Control Valve with Bi-Level Vertical Float IR-457-66-U The BERMAD Model IR-457-66-U Level and Flow Control Valve with Bi-Level Vertical Float is a hydraulically operated, diaphragm actuated control valve that controls reservoir filling, opening at preset reservoir low level, and shutting at preset high level. During filling, it limits the flow to a maximum preset value. Line Pressure Driven, Level & Flow Control Maintains pump and system designed flow Bi-Level Hydraulic Vertical Float ❏ On/Off service ❏ Flexible level adjusting range Hydraulic Flow Sensor (downstream installation) ❏ No moving parts nor electronic components ❏ Valve cavitation damage protection Advanced Globe Hydro-Efficient Design ❏ Unobstructed flow path ❏ Single moving part Fully Supported & Balanced Diaphragm ❏ Requires low opening and actuation pressure ❏ Excellent low flow regulation performance ❏ Progressively restrains valve closing ❏ Prevents diaphragm distortion User Friendly Design ❏ Easy access to valve and float ❏ Simple in-line inspection and service ❏ Full Range of Low Level Reservoirs Unavailable Power Supply Locations Limited Flow Capacity Systems Reservoirs Subject to High Inlet Pressure Pressure Braking Reservoirs in Gravity Fed Lines Systems Irrigated Directly from Fill-Up Line [1] BERMAD Model IR-457-66-U opens at reservoir preset low level, limiting fill-up rate to preset maximum, and shuts at reservoir preset high level. [2] BERMAD Flow Sensor Model “U” [3] BERMAD Bi-Level Vertical Float Mode

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BERMAD IrrigationIR-457-66-U For full technical details, refer to Engineering Section. Pressure Rating: 16 bar; 232 psi Operating Pressure Range: 0.5-16 bar; 7-232 psi For lower pressure requirements, consult factory Setting Range: ±25% from valve predetermined flow Orifice diameter is calcula ted in accordance with desired AP at predetermined flow. Setting ranges vary according to specific pilot spring. Please consult factory. Materials: Body and Cover: Polyester Coated Cast or (10”; DN250 and larger) Ductile Iron Spring: Stainless Steel Diaphragm: Nylon fabric Reinforced NR with rugged...

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