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APOLLO Double Check Valve Backflow Assembly: 4A, 1 1/2 in Pipe Size, FNPT x FNPT - Apollo Double Check Backflow Preventers
APOLLOApollo Double Check Backflow Preventers

APOLLO Double Check Valve Backflow Assembly: 4A, 1 1/2 in Pipe Size, FNPT x FNPT

The APOLLO Double Check Valve Backflow Assembly: 4A is a double check backflow preventer from Apollo, featuring a 1 1/2 in pipe size with FNPT x FNPT connections and a ball valve shut-off type. This assembly has an…

SKU 3G-OTH-431830

Brand
APOLLO
Item
Double Check Valve Backflow Assembly: 4A, 1 1/2 in Pipe Size, FNPT x FNPT
Category
Apollo Double Check Backflow Preventers
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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
4A107A2F
Type
FNPT x FNPT
Overall Lg
18 in
Pipe Size
1 1/2 in
Connection Type
FNPT x FNPT
Shut-Off Valve Type
Ball Valve

Technical Documents

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

Product Description

The APOLLO Double Check Valve Backflow Assembly: 4A is a double check backflow preventer from Apollo, featuring a 1 1/2 in pipe size with FNPT x FNPT connections and a ball valve shut-off type. This assembly has an overall length of 18 in and is identified by manufacturer part number 4A107A2F.

Frequently Asked Questions

What is the APOLLO Double Check Valve Backflow Assembly 4A used for?

The APOLLO Double Check Valve Backflow Assembly 4A prevents backflow of contaminated water into potable water supplies. It is used in commercial and industrial plumbing systems, irrigation, and fire protection lines where non-health hazard cross-connections exist.

What are the specifications of the APOLLO 4A107A2F backflow preventer?

The APOLLO 4A107A2F has a 1 1/2 in pipe size with FNPT x FNPT connections, a ball valve shut-off type, and an overall length of 18 in. It is a double check backflow assembly designed for reliable backflow prevention in water lines.

Where to buy APOLLO backflow preventers worldwide?

3G Electric supplies APOLLO backflow preventers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on the APOLLO 4A107A2F.

How to install the APOLLO double check valve assembly?

Install the APOLLO 4A assembly in a horizontal or vertical position with flow arrow pointing downstream. Ensure FNPT connections are properly sealed with thread tape. Install test cocks for annual testing per local codes. Always consult a licensed plumber for compliance.

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 apollo double check backflow preventers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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