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APOLLO Double Check Valve Assembly: 4A - Apollo Double Check Backflow Preventers
APOLLOApollo Double Check Backflow Preventers

APOLLO Double Check Valve Assembly: 4A

The APOLLO Double Check Valve Assembly: 4A is a bronze double check backflow preventer with a 3/4-inch pipe size and FNPT x FNPT connections. It features ball valve shut-offs and has an overall length of 12.63…

SKU 3G-OTH-431823

Brand
APOLLO
Item
Double Check Valve Assembly: 4A
Category
Apollo Double Check Backflow Preventers
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Technical Specifications

APOLLO
Connection Type
FNPT x FNPT
Shut-Off Valve Type
Ball Valve
Manufacturer Part Number
4ALF104A2F
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APOLLO Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The APOLLO Double Check Valve Assembly: 4A is a bronze double check backflow preventer with a 3/4-inch pipe size and FNPT x FNPT connections. It features ball valve shut-offs and has an overall length of 12.63 inches, identified by manufacturer part number 4ALF104A2F.

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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APOLLO Double Check Valve Assembly: 4A, 1 1/2 in Pipe Size, FNPT x FNPT, 18 in Overall Lg, Bronze (MPN 4ALF107A2). Key specifications — Shut-Off Valve Type: Ball Valve; Connection Type: FNPT x FNPT.
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APOLLO Double Check Valve Backflow Assembly: 4A, 3/4 in Pipe Size, FNPT x FNPT, 12.63 in Overall Lg (MPN 4A104A2F). Key specifications — Shut-Off Valve Type: Ball Valve; Connection Type: FNPT x FNPT.
APOLLO Double Check Valve Backflow Assembly: 4A, 1/2 in Pipe Size, FNPT x FNPT, 10.88 in Overall Lg (MPN 4A103A2F). Key specifications — Shut-Off Valve Type: Ball Valve; Connection Type: FNPT x FNPT.
APOLLO
APOLLO Double Check Valve Backflow Assembly: 4A, 1/2 in Pipe Size, FNPT x FNPT, 10.88 in Overall Lg (MPN 4A103A2F). Key specifications — Shut-Off Valve Type: Ball Valve; Connection Type: FNPT x FNPT.
APOLLO Double Check Valve Assembly: 4A, 1 1/4 in Pipe Size, FNPT x FNPT, 17.5 in Overall Lg, Bronze (MPN 4ALF106A2F). Key specifications — Shut-Off Valve Type: Ball Valve; Connection Type: FNPT x FNPT.
APOLLO
APOLLO Double Check Valve Assembly: 4A, 1 1/4 in Pipe Size, FNPT x FNPT, 17.5 in Overall Lg, Bronze (MPN 4ALF106A2F). Key specifications — Shut-Off Valve Type: Ball Valve; Connection Type: FNPT x FNPT.