The ASCO C113443 is a replacement repair kit for compatible ASCO pulse valves. It is associated with Series 353 valves used to deliver short bursts of compressed air for cleaning filter bags and cartridges in dust collector systems.
The repair kit is intended to replace serviceable internal components rather than requiring replacement of the complete pulse valve.
Depending on the specific supply configuration, C113443 repair kits are commonly described as including a diaphragm assembly and spring. ASCO documentation identifies C113443 as the spare parts kit for G353A041 and G353A042 configurations.
Which ASCO Valves Use C113443?
C113443 is associated with several Series 353 pulse valve configurations. ASCO documentation lists it for:
- G353A041
- G353A042
- G353-055
- G353-056
The listed valve configurations include 3/4-inch and 1-inch versions, depending on the particular valve design.
Because different ASCO repair kits are designed for different valve configurations, it is important to verify the valve model and original part number before ordering a replacement kit.
What Does the C113443 Repair Kit Do?
The main purpose of the C113443 repair kit is to restore the internal operating components of a compatible pulse valve.
The diaphragm is a flexible sealing component that responds to changes in air pressure inside the valve. During a cleaning cycle, the pilot system changes the pressure balance, causing the diaphragm to move and allowing the main valve to release a compressed-air pulse.
The spring works with the internal valve assembly to help maintain the correct operating position and reset the valve after the cleaning pulse.
Together, these components support the rapid opening and closing operation required for pulse-jet filter cleaning.
How Does an ASCO Pulse Valve Work?
A typical Series 353 pulse valve operates through a pressure-controlled diaphragm system.
1. Valve in the Closed Position
During normal operation, compressed air is available inside the valve and the diaphragm maintains the main outlet in the closed position.
2. Cleaning Signal
The dust collector controller activates the pilot valve.
3. Pressure Changes
The pilot action changes the pressure acting on the diaphragm.
4. Diaphragm Moves
The pressure differential causes the diaphragm to move.
5. Cleaning Pulse
The main valve opens rapidly and releases a short burst of compressed air into the filter-cleaning system.
6. Valve Resets
After the pulse, the pressure balance returns to normal and the diaphragm returns to its operating position.
This process is repeated at regular intervals to remove accumulated dust from filter elements.
Why Is the C113443 Repair Kit Important?
Pulse valves operate repeatedly throughout the life of a dust collector. Every cleaning cycle places pressure and mechanical stress on the diaphragm and other internal components.
Over time, these components can wear or deteriorate.
A worn diaphragm or damaged spring may result in:
- Weak cleaning pulses
- Air leakage
- Valve opening problems
- Valve closing problems
- Irregular cleaning performance
- Increased compressed-air consumption
- Reduced dust collector efficiency
Replacing the appropriate internal components can help restore normal pulse valve operation.
When Should You Replace a C113443 Repair Kit?
The service life of a pulse valve repair kit depends on factors such as:
- Cleaning frequency
- Compressed-air pressure
- Compressed-air quality
- Operating temperature
- Dust and environmental conditions
- Overall valve operating conditions
There is no single replacement interval suitable for every application.
The valve should be inspected if cleaning performance decreases, compressed-air leakage occurs, or the valve begins operating abnormally.
C113443 Repair Kit Replacement
Before servicing an ASCO pulse valve, the compressed-air supply should be isolated and the valve completely depressurized.
A general maintenance process may include:
- Shut down the relevant equipment.
- Isolate the compressed-air supply.
- Release residual air pressure.
- Remove the valve cover according to the applicable service procedure.
- Remove the old diaphragm and associated components.
- Inspect the valve body and other internal parts.
- Install the C113443 replacement components.
- Reassemble the valve correctly.
- Check for air leakage.
- Test the valve before returning the dust collector to normal operation.
The exact procedure should always follow the applicable ASCO documentation and site safety requirements.
C113443 vs. C113444
C113443 and C113444 are both associated with ASCO Series 353 pulse valve repair applications, but they should not automatically be treated as interchangeable.
Available Series 353 parts documentation identifies C113443 with G353A041 and G353A042 configurations, while C113444 is associated with SCG353A043 and SCG353A044 configurations in parts references.
Therefore, always check the valve model and part number before selecting a repair kit.
Applications
ASCO Series 353 pulse valves are commonly used in industrial dust collection and reverse-jet filter cleaning systems.
Typical applications include:
- Cement plants
- Power generation
- Steel and metal processing
- Mining and mineral processing
- Chemical processing
- Industrial manufacturing
- Bulk material handling
- Baghouse dust collectors
In these systems, pulse valves provide compressed-air pulses that help remove accumulated dust from filter bags or cartridges.
Conclusion
The ASCO C113443 Repair Kit is a spare parts kit for compatible ASCO Series 353 pulse valves. It is associated with valve configurations including G353A041 and G353A042, and is used to maintain or restore the internal operating components of the valve.
By replacing worn internal components such as the diaphragm assembly and spring, a suitable repair kit can help restore reliable valve operation and maintain effective filter cleaning.
Before purchasing or installing a C113443 Repair Kit, always verify the valve model, part number, dimensions, and component compatibility.
