APOLLO 4NLF3A44B Potable Water Dual Check Backflow Preventer
The APOLLO Dual Check Valve: 4N is a potable water dual check backflow preventer with a 3/4 in pipe size and FNPT x MNPT connection type. It has a flow rate of 26 gpm and an overall length of 4.38 in, identified by…
SKU 3G-OTH-437181
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
Need installation or engineering help?
Ask a question
Product Description
The APOLLO Dual Check Valve: 4N is a potable water dual check backflow preventer with a 3/4 in pipe size and FNPT x MNPT connection type. It has a flow rate of 26 gpm and an overall length of 4.38 in, identified by manufacturer part number 4NLF3A44B.
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-connections, such as irrigation or boiler lines.
What are the specifications of the APOLLO Dual Check Valve 4N?
The APOLLO Dual Check Valve 4N has a 3/4 in pipe size with FNPT x MNPT connections, a flow rate of 26 gpm, and an overall length of 4.38 in. The manufacturer part number is 4NLF3A44B. It is designed for potable water dual check backflow prevention applications.
Where to buy the APOLLO Dual Check Valve 4N worldwide?
3G Electric supplies the APOLLO Dual Check Valve 4N worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time; we source and deliver this valve to any international destination.
How to install the APOLLO Dual Check Valve 4N?
Install the APOLLO Dual Check Valve 4N in a horizontal or vertical position with flow direction matching the arrow on the body. Use thread sealant on the FNPT x MNPT connections and tighten to manufacturer torque specs. Always test for backflow prevention after installation per local plumbing codes.
Used in
Common applications for APOLLOAPOLLO 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.
