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APOLLO 4ALF106A2F Double Check Backflow Preventer, 1 1/4 in, FNPT x FNPT, Bronze - Apollo Double Check Backflow Preventers
APOLLOApollo Double Check Backflow Preventers

APOLLO 4ALF106A2F Double Check Backflow Preventer, 1 1/4 in, FNPT x FNPT, Bronze

The APOLLO Double Check Valve Assembly: 4A is a bronze backflow preventer with a 1 1/4 in pipe size and FNPT x FNPT connections. It features ball valve shut-offs and has an overall length of 17.5 in, identified by…

SKU 3G-OTH-431827

Brand
APOLLO
Item
4ALF106A2F Double Check Backflow Preventer, 1 1/4 in, FNPT x FNPT, Bronze
Part Number
4ALF106A2F
Category
Apollo Double Check Backflow Preventers
Available to Order
Also known as:4ALF106A2FAPOLLO
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Technical Specifications

APOLLO
Manufacturer Part Number
4ALF106A2F
Type
FNPT x FNPT, Bronze
Overall Lg
17.5 in
Pipe Size
1 1/4 in
Connection Type
FNPT x FNPT
Shut-Off Valve Type
Ball Valve

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

Product Description

The APOLLO Double Check Valve Assembly: 4A is a bronze backflow preventer with a 1 1/4 in pipe size and FNPT x FNPT connections. It features ball valve shut-offs and has an overall length of 17.5 in, identified by manufacturer part number 4ALF106A2F.

Frequently Asked Questions

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

The APOLLO Double Check Valve Assembly 4A is a backflow preventer used in commercial and industrial water systems to stop contaminated water from flowing backward into the potable supply. It is typically installed on non-hazardous cross-connections, such as irrigation lines or fire sprinkler systems, where low-to-medium hazard backflow protection is required.

What are the specifications of the APOLLO 4ALF106A2F double check valve?

The APOLLO 4ALF106A2F double check valve assembly has a 1 1/4 in pipe size with FNPT x FNPT connections. It is made of bronze, features ball valve shut-offs, and has an overall length of 17.5 in. The manufacturer part number is 4ALF106A2F, and it is part of the Apollo 4A series backflow preventers.

Where to buy the APOLLO 4ALF106A2F double check valve worldwide?

You can source the APOLLO 4ALF106A2F double check valve assembly through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine Apollo backflow preventers to procurement teams and engineers globally.

How to install the APOLLO double check valve assembly 4A?

Install the APOLLO double check valve assembly 4A in a horizontal or vertical position with flow direction matching the arrow on the body. Ensure both FNPT connections are properly sealed with thread tape and tightened to manufacturer torque specs. Always install test cocks and shut-off ball valves per local plumbing codes, and test the assembly after installation to verify backflow protection.

Used in

Common applications for APOLLO
HVAC systems — Apollo bronze ball valves with FNPT connections for isolation of chilled and hot water lines.
Natural gas distribution — Apollo UL-listed bronze ball valves rated for gas service and 600 psi CWP.
Industrial process piping — Apollo stainless steel ball valves with spring-return handles for fail-safe shutoff.
Plumbing and potable water — Apollo brass ball valves with sweat connections for copper tubing installations.
Steam service — Apollo bronze ball valves with MPTFE seals and high-temperature ratings.
Backflow prevention — Apollo bronze ball check valves with RPTFE balls for inline flow control.
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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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Bronze double check backflow preventer with 1-1/2 in FNPT x FNPT connections. Features ball valve shut-offs and an overall length of 18 in. Used in non-hazardous service lines such as fire sprinkler or irrigation systems to prevent backflow into potable water supplies
APOLLO
Bronze double check backflow preventer with 1-1/2 in FNPT x FNPT connections. Features ball valve shut-offs and an overall length of 18 in. Used in non-hazardous service lines such as fire sprinkler or irrigation systems to prevent backflow into potable water supplies

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