Vac Rel Valve 3/8 Npt Sp Aa840A MPN:AA840A
Vac Rel Valve 3/8 Npt Sp Aa840A
The GAST - AA840A is a vacuum relief valve that provides vacuum relief at a preset vacuum level to limit negative pressure in connected systems. It operates by opening to allow ambient air in when internal pressure falls below a preset vacuum level, then reseals as pressure equalizes. The valve is compatible with Gast brand equipment and replaces listed Gast part numbers.
Key Features:
- - Thread size: 3/8" NPT for standard pneumatic connections.
- - Compatible with Gast brand equipment.
- - Fits and replaces multiple Gast manufacturer part numbers including 0523-101Q-G588NDX, 1423-101Q-G625, AT05-101-G215DX, among others.
- - Opens to admit air at low pressure and reseals at equalized pressure.
Additional Information
- Country of Origin: US
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 2
- Unit of Measure: EA
- Package Length: 2.50
- Package Width: 0.70
- Package Height: 0.70
- Package Weight: 0.03
Product info last updated on February 17, 2026 9:12pm UTC