Closed System Chemicals

B & V’s extensive range of technically advanced closed circuit water treatment chemicals have been developed for use with a wide range of different types of low and high pressure hot water heating boiler plant and chilled water systems. The quality chemicals will prevent the occurrence of the problems associated with this type of plant such as hard water scale, boiler corrosion, pipework corrosion, sludge formation and microbiological fouling.

The chemicals we provide ensure that the boiler plant is maintained at maximum efficiency, extend the equipment life and at the same time reducing maintenance costs. We also have a range of chemicals for steam boilers and cooling systems.

The range also includes pre-commission cleaning chemicals for closed systems. The cleaning of a newly installed or refurbished heating and chilled water systems before they are introduced into the service has become more important over recent years due to the equipment used being more susceptible to blockages at strainers, control valves and small bore heat exchangers. Water systems contaminants such as millscale, jointing compounds, oil, grease and fabricating debris need to be removed by chemical cleaning and high velocity flushing, which will then allow a water treatment regime to function correctly and prevent corrosion and microbiological fouling. Older systems that have accumulated deposits due to a lack of the correct water treatment can be cleaned by a similar method.

Corrosion Inhibitors

BV154

A multifunctional, borate nitrate based product to control corrosion in closed cooling systems, chiller water systems and hot water heating systems. A liquid product giving excellent corrosion protection for mild steel systems and also contains a copper and brass corrosion inhibitor. This product is not suitable for systems containing aluminium.

BV205

A liquid product with a high level of nitrate for use in larger systems where economy is important. Multifunctional, borate nitrate based product to control corrosion in closed cooling systems, chiller water systems and hot water heating systems. Gives excellent corrosion protection for mild steel systems and also contains a copper and brass corrosion inhibitor. This product is not suitable for systems containing aluminium.

BV202

A corrosion inhibitor developed for use in multi metal heating and chilled water systems, especially those containing aluminium. A liquid product containing molybdate and organic phosphate and can be used in domestic heating systems up to very large industrial heating and cooling systems.

BV206

A corrosion inhibitor for use in systems requiring excellent resistance against aluminium corrosion and also systems that are semi open to the atmosphere. Dose at 2.5% for optimum results.

BV203

A non-toxic corrosion inhibitor for use in small multi metal heating and chilled water systems, including those containing aluminium. Phosphate based formulation.

BV639

A nitrite / molybdate  based multi-metal corrosion inhibitor for closed circuit heating and chilled water systems. Economical in use.

BV491

Closed circuit buffer is to correct the pH of closed circuits which have an elevated pH. Of particular use in systems containing Aluminium, where an optimal pH of between 6.5 and 7.5 should be maintained.

Pre-Commission Cleaners / Flushing Cleaners

BV140

A highly effective, neutral, pre-commission cleaning chemical for new systems where mill scale, oil, grease and other fabrication contaminates need to be removed prior to commissioning the water system. Disperses light iron oxide deposits and passivates bare metal surfaces. Dose at 1%.

BV155

Neutral pH iron oxide deposit remover for industrial pipework. A highly effective flushing chemical for use in older systems where there are problems with restricted flow due to accumulation of hard corrosion deposits.

BV398

High performance, non-acid, pre-commission cleaner / flushing and cleansing agent for closed circuit systems. Loosens mobilises and dissolves corrosion deposits.

BV850

Heavy duty pre-commission cleaner for closed circuit heating and chiller systems. Removes oil, grease and flux residues and disperses light iron oxide deposits.

BV598

A mildly acidic pre-commission cleaner for central heating systems

BV599

A mildly acidic flush and cleanser for central heating systems. Can be used as a pre-commission cleaner or sludge remover for older systems. Dose at 1-2%.

Closed System Biocides

BV129

A highly effective non-oxidising biocide based on isothiazolinone used to control microbiological fouling in heating and chilled water system. Does not contain a copper stabiliser, which can cause corrosion in closed circuit systems.

BV106

2-bromo-2-nitropropane-1,3-diol (bronopol) based biocide. Used for controlling bacterial growth in closed circuit systems.

BV254

Broad-spectrum THPS based biocide.

BV483

Synergistic blend of isothiazolinone and Bronopol. Very effective against Pseudomonas spp and Nitrite reducing bacteria. 

BV585

Very effective broad spectrum biocide for use with alkaline, nitrite based inhibitors. Particularly effective against Pseudomonas spp and Nitrite reducing bacteria. Good long term stability between pH 8 – 11 and at temperatures up to 80oC. Cost effective drop test kit available for site testing the levels of this biocide in systems. Also recommended as a biocide flush during pre-commission cleaning.

Glycol / Antifreeze Chemicals

BV70

A high quality mono ethylene glycol antifreeze designed for frost protection in chilled water systems. Compatible with our full range of corrosion inhibitors.

BV134

A high quality, food and beverage grade mono propylene glycol antifreeze designed for use in the food and beverage industries and for systems where low toxicity is essential.

BV69

All in one product for chiller systems. Monoethylene glycol + Molybdate based multimetal corrosion inhibitor.

On-Line Descaler

BV139

An on-line descaler for closed circuit systems that can be applied together with any existing chemical treatment and will slowly remove scale that causes ‘kettling’ problems. Restores heat transfer efficiency.

Antifoams

BV5

Used to control foaming in closed systems

Dosing of Closed System Water Treatment Chemicals

Closed system chemicals are ideally dosed automatically via a precise chemical pump that is controlled by equipment that will give the correct amount of chemical for the application. One such popular method for closed systems is to link the chemical pump to a water meter that is measuring the make up water quantity so that chemical is replenished as water is added. However some systems will have very low make up, but as inhibitor levels may fall, it is essential to carry out periodic chemical tests to ensure that the the correct inhibitor levels are maintained.

For more information on B & V Own Label Products, please contact our offices on 0844 372 7344 or e-mail us on orders@bvwater.co.uk