APOLLOAtmospheric Vacuum Breakers

APOLLO 3/8 in Polished Chrome Brass Atmospheric Vacuum Breaker, NPT

The APOLLO Vacuum Breaker (MPN 3820206) is an atmospheric vacuum breaker with FNPT x FNPT connections, a 3/8 in pipe size, and a polished chrome finish. Constructed from brass for water media with NPT threads, it is…

SKU 3G-OTH-597022

Brand

APOLLO

Item

3/8 in Polished Chrome Brass Atmospheric Vacuum Breaker, NPT

Local availability & support — Singapore

Local office: 20 Woodlands Link #09-05, Singapore 738733
Phone: +65 8878 8355
Delivery: Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment: Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to: Singapore

Technical Specifications

APOLLO

Manufacturer Part Number

3820206

Type

Polished Chrome, For Water Media, Brass, NPT 

Pipe Size

3/8 in 

Technical Documents

No technical documents available for this product.

Request documentation →

Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.

Talk to an engineer

Ask a question

APOLLO Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is an APOLLO vacuum breaker used for?

An APOLLO vacuum breaker prevents back-siphonage in potable water systems. It is installed on water lines to protect drinking water from contamination by stopping reverse flow when pressure drops.

What are the specifications of the APOLLO 3820206 vacuum breaker?

The APOLLO 3820206 is a 3/8 in pipe size atmospheric vacuum breaker with FNPT x FNPT connections. It is made of brass with a polished chrome finish, designed for water media and NPT threads.

Where to buy APOLLO vacuum breakers worldwide?

3G Electric supplies APOLLO vacuum breakers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us to order the APOLLO 3820206 or other models for your potable water system.

How to install an APOLLO atmospheric vacuum breaker?

Install the APOLLO vacuum breaker vertically above the highest downstream outlet. Ensure the inlet is connected to the water supply and the outlet is open to atmosphere. Use PTFE tape on NPT threads and test for back-siphonage prevention 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.

Browse all APOLLO products →Contact our engineers →