Atlas Copco Solenoid Valve – 1639 6304 99
Quick Specs
– Part Number: 1639 6304 99
– Description: Valve Solenoid
– Application: Air Dryer
– Product Status: Original
– Availability: On Request
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Atlas Copco 1639-6304-99 is a solenoid valve assembly used in air dryer systems. The valve operates on 24 V AC at 50–60 Hz with a rated power consumption of 3.5 VA and is designed for continuous duty (100% ED).
The component is rated for a working pressure range of 0.45–0.8 MPa (4.5–8 bar) and has an IP65 protection rating. Its specified operating voltage range is 20.4–27.6 V AC.
Technical Details
| Part Number | 1639630499 |
| Description | Solenoid Valve |
| Brand | Atlas Copco |
| Product Status | Original |
| Application | Air Dryer |
| Rated Voltage | 24 V AC |
| Frequency | 50–60 Hz |
| Power Consumption | 3.5 VA |
| Duty Cycle | 100% ED |
| Working Pressure | 0.45–0.8 MPa / 4.5–8 bar |
| Protection Rating | IP65 |
Two Different Things Can Cause the Same Symptom
A solenoid valve that isn’t actuating can fail for an electrical reason (no signal reaching the coil,a burnt-out coil,or a wiring fault)or a mechanical one (the valve body or plunger physically stuck ,often from contamination or corrosion).Testing whether the coil is receiving voltage when it should is a quick way to narrow down which side of the problem you’re dealing with before assuming the valve itself needs full replacement.
Common Questions
How do I know if it's an electrical or mechanical failure?
Check whether voltage is reaching the coil when the valve should actuate.If voltage is present but the valve doesn’t move,it’s likely mechanical (stuck valve body).If there’s no voltage,the issue is upstream — wiring,connector,or controller signal.
Can I just replace the coil instead of the whole valve?
On some designs ,yes — the coil and valve body are separate components.Confirm your valve’s construction before ordering to see if this is an option.
Are these genuine parts?
Yes. Parts are sourced through Atlas Copco distributor channels.
What payment methods do you accept?
T/T (bank transfer).
What is the typical lead time?
Common consumables (filters, oil) typically ship within about 1 week. Lead time for other spare parts depends on stock availability — please contact us for a confirmed schedule.
Do you inspect parts before shipment?
Yes. We provide full photos and video of the actual item before shipment, and confirm everything is correct with you prior to dispatch.
What shipping options are available?
If you have your own freight forwarder, we can ship to them directly. If not, we can provide shipping options based on your preference.
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