BAC901 series automatic backflushing controller waterproof IP64 enclosure housing front view

YAYUAN Commercial Motorized Valve Actuator (24V AC/DC & 12V DC Latch Pulse)

The YAYUAN Motorized Valve Actuator is a high-performance, industrial-grade pilot operator designed to convert electrical signals into precise hydraulic valve control. Featuring a fully encapsulated IP68 waterproof structure, it ensures an ultra-long service life in humid irrigation environments. With an integrated 3-mode manual override dial (Open/Close/Auto) and compatibility with both 24V AC/DC networks and 12V DC battery systems, it is the ultimate reliability upgrade for automatic backflushing manifolds.

Product Overview

The BAC901 Series Automatic Backflushing Controller serves as the intelligent brain for commercial water filtration networks. By continuously evaluating pressure fluctuations via its integrated DP sensor, it automatically triggers backwash valve sequencing without human intervention, ensuring optimal system hydraulics and constant clean water distribution.

Flexible Modes of Operation

The system adaptively triggers cleaning cycles based on three field conditions to ensure optimal performance:

Pressure Differential (DP) Triggering: Automatically initiates backflushing when the preset pressure drop across the filters is reached.
Time Interval Only: Triggers backwash cycles purely based on predetermined operating runtime.
Manual Override: Allows on-site engineers to manually launch an immediate cycle sequence.

Key Features & Advantages

Built-in DP Sensor & Digital Calibration: Features an integrated high-precision pressure differential cell, allowing quick zero-point calibration directly via the keypad interface.
Real-time LCD Field Display: Intuitive interface reveals current actual DP values, backflush station active status, duration countdowns, and time remaining until the next automatic loop.
Advanced Alarm Sequences: Includes an endless looping safety cutoff mechanism with a built-in alarm alert, alongside low pressure and low battery warning triggers.
Modular Station Flexibility: The base unit structure easily adapts to drive anywhere from 1 to 10+ modular filter stations in sequential order.
Dual Power Varieties Available: Choose between the AC Version (powered by 110V/220V grid electricity to output standard AC24V commands) or the DC Version (powered by 4x 1.5V C-cell batteries to drive efficient DC12V latch solenoids).

Technical Specifications

Parameter	Details & Values
Series / Model	BAC901 / BAC901A02
Input Options	AC 110V/220V or DC 6V (4x 1.5V C-Size Batteries)
Output Command Voltage	AC 24V or DC 12V Latch Pulse
Weatherproof Enclosure	IP64 Rated Waterproof Shell
User-Adjustable Fields	Flushing duration, interval, pressure set-point, dwell index, DP response delay
Operating Limits	Working Temperature Range: 0°C to 60°C

Wiring & System Integration

The base terminals connect cleanly to modern 3-way solenoid configurations. For DC configurations, connect the Red lead to Positive (+) and Black to Negative (-). For standard AC24V operation, the layout uses a common line wire scheme alongside an external master-valve trigger if a booster pump is utilized on the main manifold assembly.

Wholesale Sourcing & Custom OEM Programming

We supply BAC901 controllers standalone or as complete integrated backwash skid assemblies with hydraulic valves and pre-wired pilot pipes. Contact our distribution office for bulk export pricing, custom enclosure branding, and technical schematic sheets.

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