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APOLLO Atmospheric Vacuum Breaker, 3/4 in, Rough Brass, FNPT x FNPT - Atmospheric Vacuum Breakers
APOLLOAtmospheric Vacuum Breakers

APOLLO Atmospheric Vacuum Breaker, 3/4 in, Rough Brass, FNPT x FNPT

The APOLLO Vacuum Breaker (MPN 3820401) is an atmospheric vacuum breaker with FNPT x FNPT connections, a 3/4 in pipe size, and a rough brass construction for water media. 3G Electric interprets this demand and…

SKU 3G-OTH-597034

Brand
APOLLO
Item
Atmospheric Vacuum Breaker, 3/4 in, Rough Brass, FNPT x FNPT
Category
Atmospheric Vacuum Breakers
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

APOLLO
Manufacturer Part Number
3820401
Type
Rough Brass, For Water Media, Brass, Female
Pipe Size
3/4 in

Technical Documents

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APOLLO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APOLLO Vacuum Breaker (MPN 3820401) is an atmospheric vacuum breaker with FNPT x FNPT connections, a 3/4 in pipe size, and a rough brass construction for water media. 3G Electric interprets this demand and delivers this genuine industrial part, sourcing it across our 14 departments with specialist depth in controls to support your facility's backflow prevention needs.

Frequently Asked Questions

What is an APOLLO vacuum breaker used for?

An APOLLO vacuum breaker prevents backflow of contaminated water into potable water lines. It is installed on irrigation, boiler, or process water systems to automatically admit air and break the siphon when pressure drops, protecting water quality in industrial and commercial facilities.

What are the specifications of the APOLLO 3820401 vacuum breaker?

The APOLLO 3820401 is an atmospheric vacuum breaker with 3/4 in FNPT x FNPT connections. It is made of rough brass construction for water media. This model is designed for backflow prevention in plumbing and industrial systems where non-hazardous water is used.

Where to buy an APOLLO vacuum breaker worldwide?

3G Electric supplies the genuine APOLLO vacuum breaker MPN 3820401 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this backflow prevention component.

How to install an APOLLO atmospheric vacuum breaker?

Install the APOLLO vacuum breaker vertically and at least 6 inches above the highest downstream outlet. Ensure the FNPT connections are sealed with PTFE tape and tightened to prevent leaks. Test the assembly for proper air-inlet operation after installation.

Used in

Common applications for APOLLO
Water supply systems — APOLLO double check valve backflow preventers (Series 4A) for backflow protection in commercial buildings.
HVAC piping — APOLLO bronze ball valves (two-piece, FNPT) for shut-off and isolation in heating and cooling loops.
Irrigation networks — APOLLO double check valve assemblies (bronze, FNPT) to prevent contamination of potable water sources.
Process piping — APOLLO three-piece ball valves (full-port, sweat connections) for maintenance-friendly flow control in industrial lines.
Safety systems — APOLLO spring-return lever ball valves (bronze, FNPT) for fail-safe shut-off in fuel or gas applications.
Plumbing repairs — APOLLO repair kits (complete check kits) for servicing backflow preventers in existing installations.

APOLLO Products

3G Electric supplies APOLLO atmospheric vacuum breakers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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