Description

The bottom distributor high flow bayonet for 30″ tank with 4″ mount is a high-flow internal distributor designed for compatible 30″ diameter FRP water-treatment vessels. Installed at the bottom of the vessel, it works with the central riser or lifting tube to distribute water through the treatment media and collect treated water during normal filtration.

The bayonet-style distributor features calibrated slots that allow water to pass through while helping retain the filter media within the vessel. By distributing water more evenly across the media bed, the distributor helps increase contact between the water and treatment media while reducing channeling.

It is suitable for a variety of media-based water-treatment applications, including water softening, iron filtration, activated carbon filtration, sediment filtration, backwashing systems and up-flow filtration systems.

Features:

• High-flow bottom distributor.
• Bayonet-style design.
• Designed for compatible 30″ FRP filter vessels.
• 4″ mounting connection.
• Designed for high-flow water-treatment applications.
• Helps distribute water evenly through the treatment media.
• Helps reduce channeling through the media bed.
• Collects treated water and directs it to the central riser/lifting tube.
• Helps prevent filter media from entering the water-flow pathway.
• Suitable for backwashing systems.
• Suitable for up-flow filtration systems.
• Durable, impact-resistant plastic construction.
• Calibrated slots for controlled water flow.
• Designed to work with compatible FRP vessel riser assemblies.
• Suitable for a variety of water-treatment media.

Specifications:

• Product type: Bottom distributor.
• Design: Bayonet.
• Flow type: High flow.
• Suitable tank diameter: 30″.
• Mounting connection: 4″.
• Dimension L1: 268 mm.
• Dimension L2: 575 mm.
• Dimension L3: 165 mm.
• Slot specification: 0.2 mm / 12.96 cm².
• Material: Durable, impact-resistant plastic.
• Installation position: Bottom of FRP vessel.
• Application: FRP water-treatment vessels.

Applications:

The bottom distributor can be used as part of compatible FRP vessel assemblies for:

1. Water softening:

Used in water-softening vessels containing ion-exchange resin. The distributor helps distribute water through the resin bed and collect the treated water.

2. Iron filtration:

Suitable for compatible iron-removal media systems where even water distribution and effective collection are required.

3. Activated carbon filtration:

Used in carbon filter vessels to distribute water through the carbon media and collect treated water.

4. Sediment filtration:

Suitable for compatible media-based sediment filtration systems.

5. Backwashing filter systems:

Designed for systems where the filter media is periodically backwashed to remove accumulated contaminants.

6. Up-flow filtration:

Suitable for compatible up-flow filter systems where water passes through the treatment media in the opposite direction to conventional down-flow filtration.

7. Fine-mesh resin systems:

The distributor can help support applications using fine-mesh resin systems where a gravel support bed may not be required, subject to the media manufacturer’s recommendations.

How the bottom distributor works:

The bottom distributor is installed at the bottom of the FRP vessel and works together with the central riser or lifting tube.

During normal filtration:

Water enters the vessel.
↓
Water flows through the treatment media.
↓
Treated water reaches the bottom distributor.
↓
The distributor collects the treated water.
↓
Water enters the central riser/lifting tube.
↓
Water returns through the filter head.

The calibrated slots in the distributor allow water to pass through while helping retain the treatment media inside the vessel.

During backwashing, the flow direction is reversed. Water enters through the riser and distributor before flowing upward through the media bed. The upward flow loosens the media and carries accumulated contaminants out through the filter head.