Product Sections

Main Pages

Best Sellers

9 cubm/hr 3.00m long fine bubble air diffuser for waste water treatment

Fine bubble high performance air diffusers. Semi flexible diffuser construction 300cm long 32mm diameter. Maximum recommended air flowrate is 10 cubic metres of air per hour. Materials of construction are plastic with 316 stainless steel end fittings, aslo fitted with non return valve in diffuser. Diffuser contains its own internal fused silica bead ballast. End fittings are 1/2" acetyl plastic as standard.

The Dryden Air diffuser is the leading air diffuser used in UK aquaculture, treatment of leachate water on landfill sites, sewerage treatment and numerous other applications.

OEM and dealer enquires welcomed
find out more

AFM grade 1 filtration media

AFM (Advanced Filtration Media) grade 1 is the standard sized AFM media equivalent to 16 x 30 grade sand. M

Supplied in 25kg sacks, grade 1 particle size 0.5mm to 1.10mm. Media should be used on top of a layer of grade 2 AFM.

Price is per 25kg sack

find out more

Oxygen standard probe

High performance, very robust galvanic oxygen probe for the measurment of dissolved oxygen in water, waste water and air. Completely sealed internals, so there is no risk of insulation failure, heavy duty Sub Sea cable, high mv out-put 6.5 mv to approx 1mg/l dissolved oxygen. Ideal probe for the Dryden Aqua, AquaTraul system or your own oxygen monitors such as multichannel or stand-alone PLC based systems.

The probe is supplied with 5 meters of cable (alternative lengths available), pack of 5 membranes and 50ml of electrolyte.

Please enquire about discounts for orders of 10 or more.
find out more

Aquaculture | Water Technology | Environmental Products.....delivered worldwide

Stainless steel pressure filters

dry1 | Pressure sand filters, cartridge and bag filters | Stainless steel pressure filters

Stainless steel pressure filter

Ref: 5.3.1

Price: £14,790.00 / €17,008.50 (Excluding VAT at 17.5%)

The filter is termed a horizontal unit which measures 1.2m in diameter and 2.5m in length. the height of the structure is 1.5m. This is a very heavy duty filter, designed for serious commercial applications. Manufactured from 316 stainless steel the filter is suitable for all water and waste water treatment applications ( except seawater).

Media surface area 3 square meters , Filter weight 1800 Kg , Filter weight ( empty) 400Kg , Filter weight when full of media and water 3500 Kg , Filtration flowrate ( maximum) 100 cubic metres per hour , Maximum working pressure 25 psi , Maximum test pressure 50 psi.
Technical details and more information

5 valve 4" manilfold in PVC assembled

Ref: 5.3.2

Price: £1,546.00 / €1,777.90 (Excluding VAT at 17.5%)

more information

5 valve 4" manilfold in PVC not assembled

Ref: 5.3.3

Price: £1,204.00 / €1,384.60 (Excluding VAT at 17.5%)

more information

Automatic valve assembly

Ref: 5-3-4-a

Price: £2,952.00 / €3,394.80 (Excluding VAT at 17.5%)

Automatic operation of the stainless steel pressure filter using a 4 valve pnuematic valve arrangement. The valves require air at 100 psi pressure and a timer module.
more information

Timer module, and solenoid valve assembly

Ref: 5-3-5-a

Price: £728.30 / €837.55 (Excluding VAT at 17.5%)

The timer module and solenoid valve assembly is required for the control of the automatic valves. The assembly requires a 230 vac power supply. A 12v dc battery is included in the system for operation for up to 3 days in the event of mains power failure.
more information

Air compressor for pneumatic valves

Ref: 5-3-6-a

Price: £146.00 / €167.90 (Excluding VAT at 17.5%)

more information

dry1 > Pressure sand filters, cartridge and bag filters > Stainless steel pressure filters

Prices shown are all ex-works Edinburgh Scotland