- Categories
- Brands
We use cookies and similar tools necessary to enable you to make purchases and enhance your shopping experiences. We also use them to understand how customers use our services (for example, by measuring site visits) so we can make improvements. You can read our Cookie Policy for more information.
These cookies make our website work. They include logging personal details, like login/sign-up or account data, browser information, images & videos, and shopping cart journey.
In addition, we use optimization cookies to test new features and designs on our website. The information collected helps us improve our website and customers' experience.
These cookies are used to understand the performance and relevancy of our adverts, to provide you with personalised adverts on other websites and social media, to track when you have arrived at our site from a recognised third-party affiliate website, and to track if you made a purchase based on the adverts we displayed to you.
These cookies enable us to provide personalised product and content recommendations, to make the browsing experience more relevant to you.
These cookies are used to offer customer surveys and feedback, to improve search results, and to allow you to share content from our website on social media.
These cookies help us improve our website by collecting and reporting information on how you use it.
A| Style | Model | Height | Connection Type | Max. Pressure | Temp. Range | Price | |
|---|---|---|---|---|---|---|---|
| A | 4ALF104A2F | 3 1/2" | NPT | 175 psi | +33°F to +180°F | £289.91 | |
| A | 4ALF103A2F | 3 1/4" | NPT | 175 psi | +33°F to +180°F | £294.36 | |
| A | 4ALF107A2 | 4 1/2" | NPT | 175 psi | +33°F to +180°F | £823.82 | |
| A | 4ALF106A2F | 4 1/2" | NPT | 175 psi | +33°F to +180°F | £749.26 | |
| A | 4ALF105A2F | 4" | NPT | 175 psi | +33°F to +180°F | £338.88 | |
| A | 4ALF108A2F | 5" | NPT | 175 psi | +33°F to +180°F | £939.91 |
Apollo 4ALF-100 Series double check valves are used in water supply systems to prevent backflow and contamination. They ensure the safe and reliable flow of potable water by preventing the reverse flow of contaminated water, safeguarding public health and water quality. These double check valves have lead-free bronze construction for enhanced safety in potable water systems, meeting regulatory standards and protecting public health. They feature a FNPT connection that offers compatibility with standard pipe fittings, simplifying installation and allowing for easy integration into existing plumbing systems. These 4ALF-100 Series valves can operate at temperatures ranging from - 33 to 180 degrees F.