• Automatic Multiport Valve (Auto MPV) – Overview

An Automatic Multiport Valve (Auto MPV) is a motor-driven valve used in filtration and water softening systems to automate the process of backwashing, rinsing, regeneration, and service, eliminating the need for manual intervention. It is often paired with FRP tanks in residential, commercial, and industrial water treatment setups.

Key Features:

Feature

Description

Operation

Fully automatic, time-based or volume-based (with flow meter), controlled via a digital control head

Valve Material

High-strength plastic (nylon-reinforced ABS or Noryl), suitable for potable water

Modes Supported

Filter, Backwash, Rinse, Brine Draw (for softeners), Fast Rinse, Brine Refill, and Service

Mounting Types

Top-mount or side-mount

Inlet/Outlet Sizes

¾”, 1”, 1.5”, 2” (BSP/NPT threads or flanged)

Flow Capacity

1 to 30+ m³/h depending on valve model

Power Supply

220V AC or 24V DC (depends on controller)

Controller Type

LED/LCD display with touchpad or button interface

Program Settings

Time-based (e.g., every 2 days at 2 AM) or Volume-based (with flow sensor input)

Pressure Rating

Typically up to 6–10 bar (90–145 psi)

Temperature Limit

Up to 45–60°C

Common Variants:

Model

Tank Size Compatibility

Typical Use

F71A / F67A

8”–12” FRP tanks

Small domestic filters

F74A / F64A

13”–18” tanks

Medium softeners/filters

F95A / F112A

20”+ tanks

Large industrial filtration

 

Applications:

  • Automatic sand and carbon filters
  • Softener systems (cation exchange)
  • Industrial RO pretreatment
  • Wastewater and greywater recycling plants
  • Pressure booster plants
  • Cooling tower water conditioning

Advantages of Auto MPVs:

  • Fully automated cycle management
  • No manual switching – reduced labor and human error
  • Customizable cycle durations and times
  • Built-in memory (retains settings after power failure)
  • Long service life with minimal maintenance