BALDR 3" dual-function pressure reducing and sustaining valve with 24V AC solenoid and flanged connections. Performs two functions simultaneously: (1) reduces downstream pressure to a constant preset maximum, and (2) sustains minimum upstream (back) pressure to protect pumps and upstream equipment. Opens/closes via AC irrigation controller. Converts to DC with bolt-on latching solenoid (BVSOL-DC, sold separately).
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The pressure reducing pilot valve [1] is connected to the valve control chamber [2] via the pressure sustaining pilot valve [3] and the shuttle valve. The pressure sustaining pilot valve closes the valve when the upstream pressure [P1] is lower than the set value. When the upstream pressure [P1] rises above the setting, the pressure sustaining pilot valve is switched to make the pressure reducing pilot valve control the valve to reduce the downstream pressure [P2]. The solenoid valve [4] is switched by electrical signal, the pressure is guided into the shuttle valve. The shuttle valve blocks each pilot valve, the line pressure is transferred the control chamber, and the valve closes.
Features:
Line Pressure Driven, Electronically Controlled On/Off
Protects downstream system
Prioritizes pressure zones
Controls system fill-up
Sustains upstream line pressure
Engineered Plastic Valve with Industrial Grade Design
Highly durable, chemical and cavitation resistant
No internal bolts and nuts
Unitized Flexible Super Travel (FST) Diaphragm and Guided Plug
Accurate and stable regulation with smooth closing
Requires low opening and actuation pressure
Prevents diaphragm erosion and distortion
High Flow "Y" Valve Body with "Look Through" Design
Ultra-high flow capacity and low pressure loss
User-Friendly Design
Easy pressure setting
Simple in-line inspection and service
Material:
Body, Cover and Plug: Glass-Filled Nylon
Diaphragm: NR
Seals: NR
Spring: Stainless Steel
Cover Bolts: Stainless Steel
Control Accessories: Nylon
Tubing and Fittings: PE
Head Loss
Dimensions - Inches
L
W
H
12.4
11.8
11
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