We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

APOLLO Dual Check Valve: 4N, 3/8 in Pipe Size, FNPT x FNPT, 12.5 gpm Flow Rate - Potable Water Dual Check Backflow Preventers
APOLLOPotable Water Dual Check Backflow Preventers

APOLLO Dual Check Valve: 4N, 3/8 in Pipe Size, FNPT x FNPT, 12.5 gpm Flow Rate

The APOLLO Dual Check Valve: 4N is a potable water dual check backflow preventer with a 3/8 in pipe size and FNPT x FNPT connection type. It has a 12.5 gpm flow rate and an overall length of 3.32 in (MPN 4NLF3A22A).

SKU 3G-OTH-437169

Brand
APOLLO
Item
Dual Check Valve: 4N, 3/8 in Pipe Size, FNPT x FNPT, 12.5 gpm Flow Rate
Category
Potable Water Dual Check Backflow Preventers
Available to Order
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Technical specs
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Local availability & support — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

APOLLO
Manufacturer Part Number
4NLF3A22A
Type
FNPT x FNPT
Overall Lg
3.32 in
Pipe Size
3/8 in
Flow Rate
12.5 gpm
Connection Type
FNPT x FNPT

Technical Documents

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

Product Description

The APOLLO Dual Check Valve: 4N is a potable water dual check backflow preventer with a 3/8 in pipe size and FNPT x FNPT connection type. It has a 12.5 gpm flow rate and an overall length of 3.32 in (MPN 4NLF3A22A).

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the APOLLO Dual Check Valve 4N used for?

The APOLLO Dual Check Valve 4N is a potable water backflow preventer that stops contaminated water from flowing backward into clean supply lines. It is commonly installed in residential and commercial plumbing systems to protect drinking water from cross-connection hazards, such as irrigation or boiler feed lines.

What are the specifications of the APOLLO Dual Check Valve 4N?

The APOLLO Dual Check Valve 4N has a 3/8 in pipe size with FNPT x FNPT connections, a flow rate of 12.5 gpm, and an overall length of 3.32 in. It is designed for potable water systems and carries the manufacturer part number 4NLF3A22A. These specs ensure compatibility with standard plumbing fittings.

Where to buy the APOLLO Dual Check Valve 4N worldwide?

You can source the APOLLO Dual Check Valve 4N through 3G Electric, a global industrial equipment distributor established in 1990. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this backflow preventer.

How to install the APOLLO Dual Check Valve 4N?

Install the APOLLO Dual Check Valve 4N in the potable water line with flow direction matching the arrow on the body. Use thread sealant on the FNPT connections and tighten to manufacturer torque specs. Always test for backflow prevention after installation and follow local plumbing codes for cross-connection control.

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 potable water dual 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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Cross-referenced by specification & description
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