Concrete
Filter Plate

A precast concrete plate for filter tank bottoms, cast as a flat panel with a regular grid of nozzle holes. The plates are bedded on mortar strips and levelled inside the basin, then fitted with ABS filter nozzles to form the water and air distribution floor of a rapid gravity filter, BAF or denitrification filter.

Request a Quote Technical Details

PrecastMethod

980 × 980 mmSmallest plate size

Hole gridNozzle layout

On requestPlate thickness

Concrete filter plate standing upright with a regular grid of nozzle holes

Method

Precast concrete

Standard sizes

980 × 980 / 980 × 1140 / 1140 × 1140 mm

Nozzle holes

Cast or drilled grid

Installation

Bedded on mortar strips

Plate thickness

On request

Why this filter plate

Cast ahead,
laid and levelled on site

A precast concrete filter plate gives the filter bottom a rigid, uniform nozzle deck without pouring concrete in the tank, so the plates can be lifted into the basin one by one and set to a common level.

Cast and cured before delivery

The plates are cast and cured away from the tank, so the filter bottom is assembled from finished panels. Only bedding, levelling and joint sealing are done in the basin — no in-tank formwork and no waiting for concrete to cure on site.

A regular, repeated hole grid

The nozzle holes or sockets are set out on a casting jig before the pour, so the spacing repeats from plate to plate and the nozzle layout stays even across the whole filter floor instead of drifting across the tank.

Bedded, levelled and replaceable

Each plate is bedded on mortar strips and levelled individually, which brings the nozzle deck to a common level on an existing tank floor and lets a single plate be lifted and re-set without breaking out the whole bottom.

Specifications

Technical parameters

Plate size and hole grid are quoted against your filter tank drawing. Parameters marked on request are confirmed for the specific plate rather than taken from a fixed catalogue.

Parameter	Value
Product type	Precast concrete filter plate for filter tank bottoms
Standard plate sizes	980 × 980 mm · 980 × 1140 mm · 1140 × 1140 mm
Plate thickness	On request
Concrete grade	On request
Reinforcement & lifting provision	On request
Nozzle holes / sockets	On request — cast in or drilled to the required grid
Nozzle hole diameter / thread	On request — matched to the filter nozzle
Nozzle grid / spacing	On request
Plate surface	Flat, with a regular hole grid as per drawing
Level tolerance	On request
Matching filter nozzles	ABS, tower or mushroom pattern, long and short handle — supplied separately
Installation	Bedded on mortar strips, levelled and jointed in the filter basin
Application	Filter tank bottom and support deck in water and wastewater filters
MOQ / price	On request — confirm plate size, hole grid, quantity & destination

Applications

Where it fits

Rapid gravity filtersV-type filter bottomsBiological aerated filters (BAF)Denitrification filtersActivated carbon contactorsIron & manganese removal filtersWaterworks filter upgradingMunicipal & industrial tertiary filtrationFilter bottom reconstruction

Product gallery

See the plate up close

Concrete filter plate product display on a white background

Perforated concrete filter plates stacked in the factory yard

Concrete filter plates with round holes stacked outdoors

Finished concrete filter plates stacked in the storage yard

Rows of concrete filter plates in the workshop with workers

Concrete filter plates loaded on a truck for shipment

Concrete filter plates bedded on mortar strips inside a filter basin

Concrete filter plates laid out in a grid in the yard

Close-up of the nozzle hole grid in a concrete filter plate

Concrete filter plate surface with a dense grid of drilled holes

Close-up of a concrete filter plate with filter nozzle sockets

Close-up of drilled holes in a concrete filter plate section

Tell us your plate size and hole grid

Send the filter tank plan, the plate size and nozzle grid you need, and the nozzle type to match — we will confirm the plate layout, the nozzle quantity and the export packing.

Request a QuoteNo obligation · response within 24h (working days)

Concrete
Filter Plate