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need to be accurately sized prior to installation to achieve and maintain these parameters. Plate heat exchangers are typically offered in two


types, gasketed and brazed. Gasketed plate heat exchangers comprise a series of plates fitted with elastomeric gasket which are retained in a frame whereas brazed plate heat exchangers eliminate the gasketed joints, often allowing for higher design pressures and temperatures.


Insulation kits


exchanger onto a system is that they do more than simply protect the boilers from potentially poor quality water. The boiler circuit and secondary circuit can operate at different temperature profiles provided the plate heat exchanger is specified correctly; the two systems can operate at different pressures; or the fluid within the secondary system could be a process or food grade fluid that could not be heated directly by a boiler. Something to take into consideration when looking to install a plate heat exchanger would be the heat transfer capacity and the temperature profiles on each side of the plate. These parameters will have a direct impact on how effectively the plate heat exchanger will function, therefore the plate will


All headers and pipework should be insulated in accordance with current standards and guidance Whilst you could use standard insulation material, choosing an insulation kit made specifically for your header is by far the better option as they will provide better insulation, with less energy loss, and will be far faster to install. In the case of our own insulation kits, these are manufactured from expanded polypropylene and consist of modular sections which are combined to encase the header. They are secured together by coupling together the corresponding interlock features.


Boiler circulation pumps


Pumps may all perform the same task of moving water, but the volume that they can move and the head which they can apply to that volume varies greatly.


FOR BOILER CONDENSATE AND PRV


PH-3.8L-HW 3.8-LITRE PRV AND CONDENSATE PUMP


PART CODE PH-3.8L-HW


Heating systems When selecting a


pump, always opt for a recognised manufacturer with a robust reputation for quality. Scrimping on a pump is pointless and detrimental; pointless, because of their cost relative to the entire commercial heating system, and detrimental as their service life may not be as long. One useful feature to


look for in a pump is the ability to modulate the pump speed, which allows the boilers to operate more efficiently. By modulating the pump speed to match the boiler output you can efficiently maintain a certain temperature differential, whilst also using less energy to drive that pump. Also aim for a compact sized pump as it needs to fit between the main headers and the boiler itself.


Check availability


On a final note, one aspect that is frequently under looked is parts availability. The HVAC industry has suffered from scarcity over recent years. Make sure there is good availability not just on the heating appliance but on all the accessory parts as well.


PH-5L-HW FOR UNVENTED T&P


HIGH TEMPERATURE AND PRESSURE RELIEF PUMP


WE ARE


5H56


• Deals with boiler condensate • High pressure and pressure relief pump


8


MAX. FLOW 312 L/H TANK CAP. 3.8L


DECIBEL RATING 53 dB(A) 1.5L PUMP CYCLE 2.8pH


BOILER UP TO


6 4 2 0 150 300 450 600 CAPACITY (LPH)


MAX. FLOW 1200 L/H 20 LPM


PART CODE PH-5L-HW


3.8L LITRE TANK


This 3.8L pump has been designed to handle standard condensate and to instantly reduce the temperature of any PRV discharge. The pump is manufactured from high temperature plastic and higher specification hose. The pump has an extra large drink cycle of 1.5 litres Suitable for boiler condensate and PRV discharge for boilers upto 42kw and boiler condensate only for boilers up to 600kW.


DOWNLOAD THE HVR APP NOW 25mm INLET


PER MINUTE UP TO


32L LITRE TANK 5L


Manufactured in the UK this heavy-duty, high-temperature tank pump incorporates thermal overload protection and high-level alarm switch. Ideal for unvented cylinder T&P discharge and steam humidifiers. Having one of the largest discharge rates of 20 litres per minute, this pump can handle both high-temperature up to 100 degrees and high-flow rates.


TANK CAP. 5L


• Unvented temperature and pressure relief


• Solar cylinder temperature and pressure relief


6 8


4 2 0 500 1000 CAPACITY (LPH)


pump-house-ltd pumphousepumps


June 2024 19


@pumphouseltd @PumpHouseLtd diversitechuk


1500


sales@diversitech.com www.diversitech.global


EXHIBITING STAND


METRES HEAD


HEATING & PLUMBING SOLUTIONS


METRES HEAD


HANDLES UP TO 110°C


HANDLES UP TO 100°C


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