Description
Product Introduction
The Flex-Kleen T16054 (often cataloged under part number DFK-T5211-010) is a industrial-grade solid-state timer board engineered specifically for pulse-jet dust collector systems. Installed inside baghouse control enclosures, this board controls the precise sequential energizing of air solenoid valves. It fires compressed air bursts down filter bags or cartridges to shed accumulated dust cake and maintain steady system differential pressure.
Unlike generic off-the-shelf timing relays, the T16054 Astro-Flex platform delivers rugged immunity to voltage transients and high ambient temperatures commonly found near industrial kilns, foundries, and bulk material handling lines. Featuring onboard potentiometer adjustments for ON-time (pulse duration) and OFF-time (pulse interval), it gives operators direct manual control over cleaning intensity without requiring a PLC setup.
Key Technical Specifications
| Parameter | Value / Feature |
| Manufacturer | Flex-Kleen (Astro-Flex) |
| Model Number | T16054 |
| Alternate Part Number | DFK-T5211-010 |
| Board Type | Solid-state pulse-jet sequential timer card |
| Input Supply Voltage | 120 VAC, 50/60 Hz |
| Output Type | Solid-state triac / relay driver outputs for 120 VAC solenoid coils |
| Pulse Time (ON-Time) | Adjustable range (typically 50 ms to 500 ms) |
| Interval Time (OFF-Time) | Adjustable range (typically 2 sec to 60 sec) |
| Termination Style | Screw terminal barrier strips |
| Mounting Style | Open-frame standoff chassis mount |
Application Scenarios & The “Trench” Experience
It is 3:00 AM on a humid summer night, and the baghouse differential pressure on a cement plant’s finish mill spikes past 8 inches of water column. High pressure triggers an automatic mill interlock, shutting down production at a loss of $18,000 per hour. Opening the dust collector panel reveals a scorched T16054 timer board with a blown power supply transformer—the solenoids stopped pulsing, the filter bags blinded with dust, and the fan choked out. Dropping in a fully tested surplus T16054 board restores the pulse sequence in under twenty minutes, allowing the mill operator to clear the bags and resume operations without waiting days for OEM board fabrication.
- Cement & Aggregate Processing: Controls pulse-jet cleaning across heavy-duty baghouse filtration systems.
- Grain Handling & Food Processing: Manages pneumatic cleaning cycles on explosive dust containment collectors.
- Chemical & Pharmaceutical Powder Handling: Regulates precise air pulses on stainless steel bin vent filters.
- Metal Foundries & Steel Mills: Drives high-frequency baghouse pulsing cycles exposed to high heat and fine metallic dust.
Transparency SOP: Quality Assurance & Testing
- Inbound Visual Inspection: Check the PCB traces for heat discoloration, verify solder joint integrity, inspect the transformer windings, and verify terminal strip screws aren’t stripped.
- Benchtop Power-On Check: Apply 120 VAC input power to logic terminals; verify onboard status LEDs and stable power supply rail voltages across IC logic chips.
- Sequential Output Load Testing: Connect dummy solenoid coil loads across output channels; cycle through all output positions using an oscilloscope to verify clean switching waveforms.
- Potentiometer Calibration Check: Sweep the ON-time and OFF-time adjustment potentiometers to confirm smooth timing variations without dead spots or jitter.
- Final Clean & Anti-Static Packaging: Apply a clean protective coating if required, seal inside heavy anti-static bags, and package with shock-absorbent foam.
T16054
T16054
The Veteran’s Tech Trap Guide (Crucial Value-Add)
- ⚠️ Check Solenoid Inrush Current: A shorted solenoid coil in the field will instantly blow the solid-state output drivers on a fresh T16054 board. Always measure coil resistance on every solenoid valve with a multimeter before powering up the new timer board.
- ❗ Mark Terminal Wiring Before Removal: Terminal screw configurations on legacy Astro-Flex boards vary slightly across sub-revisions. Label your AC Hot, Neutral, Ground, and individual Solenoid output lines clearly before pulling the defective board.
- ⚠️ Do Not Overtighten Standoffs: The open-frame PCB uses unreinforced mounting holes at the corners. Over-torquing metal standoffs into an uneven enclosure backplate will flex and crack the internal trace layers.
- ❗ Verify Jumper & Channel Count Settings: If your collector only uses 6 of 10 available channels, ensure the stepping jumper is positioned on channel 6. Leaving the board configured for 10 channels causes a dead pause while it steps through unconnected outputs.
Frequently Asked Questions (FAQ)
Q: Can I use the T16054 timer board with 24 VDC solenoid valves?
A: No. The standard T16054 board operates on a 120 VAC power input and supplies 120 VAC directly to the output solenoid terminals. Using 24 VDC valves directly on this board will damage the output circuits or fail to actuate the coils.
Q: What if my dust collector uses fewer output channels than the board provides?
A: The board includes a stepping/shorting wire or jumper configuration. Set the jumper to your highest active channel number so the timer immediately resets to channel 1 after firing the last active solenoid, eliminating dead time.
Q: Why do my solenoid outputs stay continuously energized instead of pulsing?
A: A continuously energized output usually indicates a shorted output triac or solid-state switch on the board caused by an downstream short circuit in field solenoid wiring.
Q: Is the T16054 a direct drop-in replacement for the DFK-T5211-010?
A: Yes. T16054 and DFK-T5211-010 refer to the same Flex-Kleen / Astro-Flex board design with identical mounting footprints and electrical pinouts.
Q: What warranty coverage comes with this surplus unit?
A: All clean surplus and refurbished T16054 timer boards include a full 12-month replacement warranty from the delivery date.
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