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APOLLO Backflow: Complete Relief Valve Kit, 1/2 in to 1 in Compatible Valve Size - Repair Kits & Parts for Apollo Backflow Preventers
APOLLORepair Kits & Parts for Apollo Backflow Preventers

APOLLO Backflow: Complete Relief Valve Kit, 1/2 in to 1 in Compatible Valve Size

The APOLLO Backflow: Complete Relief Valve Kit (SKU 3G-OTH-434322) is a repair kit for Apollo backflow preventers, compatible with valve sizes from 1/2 in to 1 in. This kit, with manufacturer part number 4A00505, is…

SKU 3G-OTH-434322

Brand
APOLLO
Item
Backflow: Complete Relief Valve Kit, 1/2 in to 1 in Compatible Valve Size
Category
Repair Kits & Parts for Apollo 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
4A00505
Type
Repair Kit
Compatible Valve Size
1/2 in to 1 in
Compatible with Mfr. Model No.
4ALF203A2F to 4ALF205A2F

Technical Documents

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

Product Description

The APOLLO Backflow: Complete Relief Valve Kit (SKU 3G-OTH-434322) is a repair kit for Apollo backflow preventers, compatible with valve sizes from 1/2 in to 1 in. This kit, with manufacturer part number 4A00505, is designed for use with Apollo model numbers 4ALF203A2F to 4ALF205A2F.

Frequently Asked Questions

What is the APOLLO Backflow Complete Relief Valve Kit used for?

The APOLLO Backflow Complete Relief Valve Kit (MPN 4A00505) is a repair kit for Apollo backflow preventers. It replaces worn relief valve components to maintain backflow protection in commercial and industrial water systems, ensuring compliance with cross-connection control regulations.

What are the specifications of the APOLLO Backflow Complete Relief Valve Kit?

This repair kit is compatible with Apollo backflow preventers in valve sizes from 1/2 in to 1 in. It fits Apollo model numbers 4ALF203A2F through 4ALF205A2F. The manufacturer part number is 4A00505, and the SKU is 804R77.

Where to buy the APOLLO Backflow Complete Relief Valve Kit worldwide?

3G Electric supplies the APOLLO Backflow Complete Relief Valve Kit (SKU 804R77) worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us to order this genuine Apollo repair kit for your backflow preventer.

How to install the APOLLO Backflow Complete Relief Valve Kit?

Installation of the APOLLO Backflow Complete Relief Valve Kit should follow the manufacturer's instructions for your specific Apollo backflow preventer model (4ALF203A2F to 4ALF205A2F). Generally, depressurize the system, remove the old relief valve assembly, and replace it with the new kit components. Always consult a qualified technician.

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 repair kits & parts for apollo 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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Compatible alternatives & equivalents

Cross-referenced by specification & description
APOLLO Backflow: Complete Relief Valve Kit, 2 in Compatible Valve Size, 4ALF208A2F, Repair Kit (MPN 4A00805)
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APOLLO Backflow: Complete Relief Valve Kit, 2 in Compatible Valve Size, 4ALF208A2F, Repair Kit (MPN 4A00805)
APOLLO Backflow: Complete Repair Kit, 1⁄2 in Compatible Valve Size, 4ALF203A2F, Repair Kit (MPN 4A00310)
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APOLLO Backflow: Complete Repair Kit, 1⁄2 in Compatible Valve Size, 4ALF203A2F, Repair Kit (MPN 4A00310)
APOLLO Backflow: Complete Repair Kit, 1⁄2 in Compatible Valve Size, 4ALF203A2F, Repair Kit (MPN 4A00302)
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APOLLO Backflow: Complete Repair Kit, 1⁄2 in Compatible Valve Size, 4ALF203A2F, Repair Kit (MPN 4A00302)
APOLLO Backflow: Top Half Complete Repair Kit, 1 in Compatible Valve Size, 4A505A2F/4ALF505A2F (MPN 4A00507)
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APOLLO Backflow: Top Half Complete Repair Kit, 1 in Compatible Valve Size, 4A505A2F/4ALF505A2F (MPN 4A00507)
APOLLO Backflow: Complete Repair Kit, 3⁄4 in Compatible Valve Size, 4ALF204A2F, Repair Kit (MPN 4A00403)
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APOLLO Backflow: Complete Repair Kit, 3⁄4 in Compatible Valve Size, 4ALF204A2F, Repair Kit (MPN 4A00403)
APOLLO Backflow: Top Half Complete Repair Kit, 3/4 in Compatible Valve Size, 4A504A2F/4ALF504A2F (MPN 4A00407)
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APOLLO Backflow: Top Half Complete Repair Kit, 3/4 in Compatible Valve Size, 4A504A2F/4ALF504A2F (MPN 4A00407)

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