Jobe Valves Vortex Differential Float Valve: Protect Your Pump, Minimize Cycling If your tank is filled by a pressure-controlled water pump, the Vortex Differential Float Valve is purpose-built for you. Instead of triggering constant on-off cycling that wears down your pump, this valve creates a wide, adjustable gap between fill and shut-off levels—letting your pump run efficiently in longer, less frequent cycles. Why a Differential Valve Matters Standard float valves can cause a pressure-controlled pump to start and stop rapidly as the water level hovers near the shut-off point—a major source of premature pump wear. The Vortex Differential solves this with an adjustable level difference from 2" up to 8' (50mm to 2.5m), so your pump runs a full cycle instead of chattering on and off. How It Works Mount the valve at the top of the tank using a threaded tank inlet fitting. As the tank empties, the weighted float travels down the cord until it hits the bottom stop—the valve then opens immediately for full flow. The valve runs continuously while the weighted float rises, until it hits the upper float stop, lifting the arm and shutting the valve down. Set your pump's pressure switch to cut off at least one bar above its running pressure while the tank fills. Key Features: High Flow: Fast, efficient tank filling. Adjustable Differential: Easily set water level differentials from 2" to 8' (50mm to 2.5m). Minimizes Pump Cycling: Reduces wear and extends pump life. Easy Valve Access: The valve unscrews from the tail for simple servicing. Universal Fit: Works with all makes and models of tanks. Common Applications: water storage tanks, water cisterns, and irrigation systems. Selecting the Right Inlet Size Match your valve's inlet size to your supply plumbing—your flow rate will always be limited by the smallest pipe in the system. Unlike Topaz and Megaflow, Vortex doesn't use a swappable Detach tail; the valve body threads directly into the arm. That doesn't mean you're locked in at purchase, though: a replacement Vortex tail is available in 1.25", 1.5", and 2" sizes, so if your supply plumbing changes later, you can swap the tail instead of replacing the whole valve. Warranty Information Jobe Valves will replace or repair product that fails due to faulty parts or manufacturing for 2 years from dated proof of purchase. Explore the full Jobe Valves Vortex product family to find the right configuration for your system, or compare Vortex to Rojo, Topaz, and Megaflow if you're not sure this is the right line for you.