SPECIALIST AGGREGATES
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Silica Sand - Filter Media <br> Product shown on a 10mm gridProduct supplied securely wrapped on a pallet
Filter Media - Silica Sand 16:30
Product Code: 3406

Options:
 10 Pack Pallet (¼ Tonne):   £124.80 Inc VAT and delivery 
 20 Pack Pallet (½ Tonne):   £182.40 Inc VAT and delivery 
 40 Pack Pallet (1 Tonne):   £279.60 Inc VAT and delivery 

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Filtration Sand - Grade 16:30 (0.5-1mm) the most frequently used media size for water filtration. Suitable for both industrial and private, pond, swimming pool and potable water filters.


Pack size: 25kg

Sand Size: 0.5–1mm (BS 16:30)

Grading Specification: Max 5% Retained 1.0mm : Max 5% Passing 0.5mm

Description & Use: A natural washed and closely graded silica sand suitable for industrial and private, pond, swimming pool and potable water filters.

Particle Size:
Typically:
Sieve Size mm % Retained
1.18 0
1.00 3
0.85 20.5
0.71 30.0
0.6 34
0.5 10
Passing 0.5 2.5
Chemical Composition:
Typically:
SiO2 98.3%
Al2O3 0.3%
Fe2O3 <1.29%
CaO <0.2%
MgO <0.2%
Loss on Ignition Max 3%
Physical
Properties:
Particle Shape Rounded / Sub-Rounded
Specific Gravity 2.65
Bulk Density Approx 1.6kg.m3
Hardness 6-7 on Mohs Scale
Acid Solubility Max 2%



Filtration for Non Filtration Specialists:
Pools, spas and ponds require water to be filtered (and as appropriate disinfected) to provide safe places for recreation and livestock. Poor maintenance can lead to clogged filters which can increase the risk of water borne infection.

Typically water filters contain clean closely graded silica sand often carried on a bed of filter support gravel. A pressure fed sand filter or "high rate" sand filter, which is generally located immediately after the pump will typically remove particles down to 10 microns in size (ten thousands of a millimetre).

Water is pumped under pressure into the top of the filter and leaves at the bottom. On the way through suspended dirt and debris in the water is trapped between the particles of sand.

Sand filters need to be cleaned regularly. By re-directing water back up through the sand bed and out to waste, accumulated dirt is flushed out, this is process is called back washing. Sand filters come with a valve known as a multi-port valve to change the direction of water flow and to facilitate this process.

Sand media needs changing every three to five years, however, also be aware of a phenomena known as channelling. This is where water cuts channels in the sand leading to a loss in filter efficiency an again will require the media to be replaced.

Specialist Aggregates' Price Promise:
All prices shown include UK VAT and delivery to mainland locations in England, Wales and Southern Scotland - There are no hidden charges on checkout.

We export throughout Europe and Worldwide - please enquire for shipping rates

Logistics:
This product option is supplied packed in safe and easy to handle weatherproof packs stacked on a wooden pallet. Packs are stretch wrapped onto the pallet for added protection and security during delivery.

Pallets are delivered by national couriers and off-loaded onto a level hard-standing using vehicle tail-lift and pallet truck. Please advise during checkout or contact our office if you have specific delivery requirements or concerns.

The immediate product wrapping, pallet stretch wrap and wooden pallet can all be recycled.

Design Specify: 16:30 Silica sand filter media from Specialist Aggregates.

Health & Safety: This silica based sand is not suitable for shot blasting.

Product Code: 3406

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