Description
The Hankison 05.4170-07 automatic drain is a genuine OEM internal, float-operated condensate drain designed for compatible Hankison compressed air filters and dryers. It automatically removes collected moisture to help prevent condensate buildup, reduce manual draining, and protect downstream equipment from moisture carryover.
Hankison 05.4170-07 is also associated with SPX part number 3232490. The drain operates mechanically and does not require electrical power, a timer, or an external control signal.
Important: The 05.4170-07 uses the small 1/8-inch NPT mounting connection. It is not interchangeable with Hankison 05.4170-08, which uses the larger 9/16-inch NPT mounting thread. Compare the existing drain and mounting connection carefully before ordering.
| Manufacturer | Hankison |
| Part Number | 05.4170-07 |
| Associated SPX Part Number | 3232490 |
| Product Type | Automatic Condensate Drain |
| Product Status | Genuine OEM |
| Operating Method | Internal Mechanical Float |
| Mounting Connection | 1/8-Inch NPT |
| Thread Configuration | Small-Thread Style |
| Maximum Operating Pressure | 250 PSIG |
How It Works
As condensate collects inside the filter bowl or dryer drain chamber, the internal float rises and opens the drain mechanism. After the accumulated liquid is discharged, the valve closes automatically to help minimize unnecessary compressed-air loss.
Key Features
- Genuine Hankison OEM drain assembly
- Automatic float-operated condensate removal
- Internal design for compatible filter and dryer housings
- Helps prevent moisture carryover into downstream equipment
- Reduces manual draining and routine maintenance
- Requires no electrical power, timer, or control signal
- Closes automatically after draining to help reduce compressed-air loss
- Suitable for compressed-air applications up to 250 PSIG
- Small-thread design with a 1/8-inch NPT mounting connection
Common Applications
- Hankison compressed air filters
- Hankison refrigerated air dryers
- Compatible moisture separators
- Hankison compressed air treatment equipment
Equipment Compatibility
This OEM automatic drain is intended for compatible filter and dryer housings that require the small 1/8-inch NPT mounting connection. Compatibility depends on the specific equipment model, housing design, and drain configuration.
Do not assume that 05.4170-07 and 05.4170-08 are interchangeable. Although the two drains perform the same basic function and may look similar, they use different mounting connection sizes.
Installation & Maintenance
This drain is normally installed internally at the bottom of a compatible compressed air filter bowl or inside the condensate collection area of a dryer. Completely depressurize the equipment before removing the bowl, opening the dryer, or servicing the drain.
Periodically inspect the drain for oil, rust, pipe scale, and other debris that could interfere with float movement or prevent the valve from sealing. A drain that sticks open may waste compressed air, while a drain that remains closed can allow condensate to accumulate and carry downstream.
Additional Information
Hankison 05.4170-07 is the genuine OEM small-thread version of this internal automatic drain. Select it only when the equipment requires the 1/8-inch NPT mounting connection.
Applications with the larger 9/16-inch NPT mounting thread require Hankison 05.4170-08 or 3152270. Always confirm the equipment model, housing configuration, existing part number, and mounting connection before ordering.