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IR-457-66-U

IR-457-66-U
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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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For full technical details, refer to Engineering Section. Technical Speciﬁcations The orifice assembly adds 20 mm. to valve length. DN Inch mm inch mm inch mm inch mm inch mm inch Kg Ib. ∆P 2-Way Circuit "Added Head Loss", bar (for "V" below 2 m/s; 6.5 f/s): 0.3 bar; 4.5 psi 1.0 0.8 Technical Data Patterns and Sizes: Globe: 3-16”; DN80-400 Angle: 3-4”; DN80-100 End Connections: 3” DN80 Size Threaded Flanged Grooved Globe Angle Globe Angle Globe Angle Pressure Rating: 16 bar; 232 psi Operating Pressure Range: 0.5-16 bar; 7-232 psi For lower pressure requirements, consult factory Setting...

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