Is your dust collector losing efficiency due to an unreliable pilot valve? The ASCO SCG353A047 is a high-flow, 1.5-inch pulse valve designed specifically for reverse jet dust collectors. In this guide, we will cover its technical specs, common applications, and installation tips to help you optimize your baghouse filtration system.
What is the ASCO SCG353A047?
The ASCO SCG353A047 is a 1.5-inch angle body pulse jet valve manufactured by ASCO (part of Emerson). Unlike standard solenoid valves, this model is engineered for the harsh environment of industrial dust collection. It acts as a heavy-duty “hammer” that releases compressed air to clean filter bags, ensuring your system runs efficiently .
This valve replaces older models and is widely known for its durable aluminum body and integral pilot design, which eliminates the need for external tubing that can leak or clog .
Key Technical Specifications
Before purchasing, it is crucial to verify if the SCG353A047 fits your manifold. Below are the core technical data points gathered from OEM specifications .
- Valve Type: 1.5″ Angle Body (Diaphragm Valve)
- Body Material: Aluminum
- Connection: NPT Threaded (Standard)
- Operating Pressure: 0.2 to 0.8 MPa (29 to 116 PSI)
- Orifice Size: 1.5 inches (DN40)
- Standard Voltages: 24V DC, 110V/50V AC, 220V/50V AC .
- Temperature Range: -5°C to +55°C (23°F to 131°F)
- Media: Clean, dry or lubricated air
5 Performance Benefits
Why do engineers choose the SCG353A047 over generic alternatives? Here are five distinct advantages:
1. High Flow Capacity (Cv)
The 1.5-inch orifice provides a high flow coefficient, allowing maximum air delivery to dislodge stuck dust from filter bags quickly .
2. Integral Pilot for Reliability
The “G” in the series often denotes a molded epoxy coil and an integrated pilot. This design resists moisture ingress and vibration, common issues in cement or mining plants .
3. Quick Diaphragm Replacement
Maintenance is straightforward. The valve top can be removed easily to inspect or replace the diaphragm without disconnecting the air manifold.
4. Low Power Consumption
The solenoid pilot uses minimal power, allowing you to run longer wire runs from your PLC or timer board without heavy-duty relays.
5. Versatile Mounting
The angle body design significantly reduces pressure drop compared to straight-through valves, making it ideal for centralized air headers.
Installation & Maintenance Tips
To maximize the lifespan of your ASCO pulse valve, follow these best practices:
- Air Quality: Always install a filter regulator before the header. Dirt and water are the number one causes of diaphragm failure.
- Wiring: Check the coil voltage. The SCG353A047 is commonly available in 24V DC and 110V/220V AC. Using the wrong voltage will burn out the coil instantly .
- Orientation: Mount the valve vertically or horizontally, but ensure the exhaust port points toward the baghouse tubesheet to avoid backpressure.
Is the SCG353A047 Right for You?
If your current pulse valves are leaking, causing “puffing” at the stack, or if your pressure drop is climbing, replacing them with the ASCO SCG353A047 restores system performance.
Action Step: Check your current valve’s voltage and orifice size. If you have a 2-inch system, you might need the SCG353A050; for 1-inch, look at the SCG353A044 .
Conclusion
The ASCO SCG353A047 remains a gold standard for 1.5-inch pulse jet systems. Its combination of high flow, durable aluminum construction, and reliable integral pilot makes it a smart investment for reducing downtime.
Need a replacement diaphragm or a full valve assembly? View our live inventory of ASCO parts or contact our support team to verify compatibility with your current header.