Supporting layer filter material

Gravel (gravel) filter material, commonly known as bearing layer filter material or cushion filter material, is divided into (natural) pebbles and (machined) quartz gravel.

Natural pebbles are spherical stones with smooth surfaces, formed through natural river excavation, washing, and sieving processes. Gravel is produced by crushing quartz ore through precision processing. These materials are widely used as supporting layers in water treatment systems such as waterworks, mechanical filters, and ion exchange processes. Common pecifications (mm): 2-4, 4-8, 8-16,16-25,25-32,32-50.

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Product Description

Product Introduction

Gravel (gravel) filter material, commonly known as bearing layer filter material or cushion filter material, is divided into (natural) pebbles and (machined) quartz gravel.

Specification

Analytical projects	Test data	Analytical projects	Test data
Silica	≥ 98%	Acid solubility	≤ 0.2%
Density	2.6 g/cm³	Capacity	1.85 g/cm³
Sediment percentage	<0.1%	Mechanical strength	7.5

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Supporting layer filter material

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