In water treatment, some components do a big job while taking up very little space. One such underrated powerhouse is the Multiport Valve (MPV).

Whether you’re working with a sand filter, softener, carbon filter, or DM unit, the MPV is what lets you manage multiple operations — like filtration, backwashing, rinsing, or regeneration — all from one place.

What Does a Multiport Valve Actually Do?
A Multiport Valve is the control center of your filtration tank. With just a turn of the handle, it redirects water to follow the operation you need — all without dismantling anything.

🟢 Common operational modes:

✔ Service / Filter – Delivers clean water through the system

✔ Backwash – Reverses flow to clean the media bed

✔ Rinse – Flushes media fines and stabilizes the bed

✔ Regeneration – For softeners; pulls brine to recharge resin

✔ Drain / Waste – Clears dirty water out of the system

Each mode is critical to maintaining system performance and media life.

🧠 Types of MPVs and Their Uses

🔵 Filter MPVs Used in: Sand Filters, Activated Carbon Filters

✔ Designed for backwashing filter media like sand, gravel, or carbon

✔ Ports are aligned for high flow and minimal pressure loss

✔ No brine or regeneration mode included

🟣 Softener MPVs Used in: Water Softeners (resin-based)

✔ Comes with an additional brine suction and slow rinse port

✔ Internal flow paths designed specifically for resin regeneration

✔ Not suitable for sand or carbon filters

🟢 DM Plant MPVs / Mixed Bed Used in: De-Mineralization Units, Mixed Bed Systems

✔ Offers acid/alkali regeneration modes

✔ Customizable flow paths for specific ion-exchange operations

🔶 Top Mount vs. Side Mount

✔ Choose based on vessel opening and available piping space

✔ Top-mount is compact and vertical; side-mount gives better access for large tanks

🛠️ Why MPVs Are Essential to Water Treatment

✔ Simple Operation – One valve handles multiple functions

✔ Saves Time & Labor – Quick mode changes without tools

✔ Protects Media & System – Ensures proper bed cleaning and settling

✔ Compact Design – Minimal space, maximum control

✔ Long-Term Value – A small component that prevents major failures

⚠ Common Mistakes to Avoid

❌ Choosing the wrong valve type (filter vs. softener)

❌ Overtightening or forcing the handle

❌ Skipping the rinse cycle after backwash

❌ Using the wrong port size or tank connection

✅ How to Select the Right MPV

✔ Match the inlet/outlet size to your piping (e.g., 1″, 1.5″, 2″)

✔ Confirm the neck size for vessel connection (e.g., 2.5″, 4″)

✔ Choose based on media type (sand, carbon, resin)

✔ Decide between top-mount or side-mount

💼 At Infinity Equipments

We offer a full range of high-quality Multiport Valves for softeners, filters, DM plants, and mixed beds — designed for smooth operation and long life in field conditions.

🔄 Infinity MPVs – Small in size, big on system control.