Gasket Plate Spares
This is a high quality friction type spanner (similar to a ratchet but does not suffer from the mechanical failures that ratchets can sometimes be prone too). This type of spanners is used on the PHE tie bolts to service the plate pack. The use of this type of spanner makes the task of pack maintenance easier and quicker to take apart and re-assemble.
Stainless steel tie bolts
This set is an up-grade from the standard items fitted which are zinc plated. The use of stainless steel bolts ensures that these parts shall not suffer from any corrosion issues that can sometimes be found on plated components especially if the coating has become worn or damaged. The bolts are supplied with brass nuts.
Stainless Steel Frame Bars
This set is an up-grade from the zinc plated bars if not stainless steel as standard.. The use of stainless steel frame bars (these run horizontally along the top and the bottom of the plate pack) ensures that these parts shall not suffer from any corrosion issues that can sometimes be found on plated components especially if the coating has become worn or damaged.
Stainless Steel Drip Tray
This is a tray, made from corossin resistant stainless steel, that fits underneath a gasketed plate type heat exchanger. Useful for catching condensation droplets if the PHE is being used with chilled water. Also, in the event of a gasket leak, or when opening up the pack, the tray can catch any spliiage tus preventiung moisture from going onto the plantroom floor (useful in some environments where wet floors are not permitted). A male threaded drain connection for linking up to waste pipe is provded as standard on all of the drip trays.
Stainless steel Frame Plates for Gasketed PHE’s
As standard, all manufacturers offer steel frame plates that are painted. However, as with all painted equipment, in the event that the paint is chipped, then this is an opening for corrosion to set in. The use if stainless frame plates overcomes this problem, especially in high moisture laden environments, for locations outside, and where frequent cleaning of the plantroom takes place.
We can supply Insulation Jackets to reduce energy loss or protect against freezing or “sweating”. The jacket also can act as a barrier for health and safety purposes over a plate pack if the jacket is being used with this type of heat exchanger.. The jackets are flexible and secured with Velcro fasteners so can be installed in less than 5 minutes and can easily be removed to allow access to the heat exchanger for servicing
General Jacket Specification:
Jacket & Liner Cloth
• Silicone coated glass fabric coated on one side with a water resistant flexible
• Colour — Grey
• 40 mm mineral fibre foil coated.
• Fire retardant Velcro.fastenings
Maximum Operating Temperature
• 0.033 W/mK
Non flammable conforming to BS 476
There are factors which can directly influence the time at which spares parts shall be required. These factors are the problems associated wth commissioning (air locks in pipes, pump priming issues, etc, which can result in pressure shocking the plate pack), the actual running conditions, the system design, the working pressures / temperatures, the frequency and methods of cleaning, and environmental conditions, etc.
In the event of any service work being necessary, the most likely items to require replacement are the gaskets. These parts can become damaged due to above mentioned factors, and in the event that when the plate pack is opened, these seals can be torn due to rough handling.
By ways of a preventative maintenance schedule, it is always considered a good policy to change the gaskets after a couple of years of operation.
These would be a handful of gaskets as these are the parts that are most likely to cause any issues especially after it has been necessary to open and inspect the plate pack. Depending upon the amount of time that the unit has been in operation it is not always necessary to replace all of the gaskets – especially if a gasket becomes damages due to commissioning problems. A few gaskets “on hand” wouild therefore offer some peace of mind during the initial setting up and commissioning of the system.
Complete Gasket set
By ways of a preventative maintenance schedule, it is always considered a good policy to change the gaskets after a couple of years in operation.
For PHE models that are fitted with connections larger than 2” (50 mm), flanges are used. The frem plate oprt hole/nozzle is usually lined with a rubber port liner. Although these are hard wearing, they can become worn / erished after time. Hence, if the PHE requires these parts then it can be beneficial to hold a coupe of these in stock as spares.
Complete Plate Packs
As an option, we also can offer the complete gasketed plate pack; - there well may be a situation where it is easier and quicker to replace the whole set, rather than cleaning and then re-gasketing the old pack before putting it back into service. Changing the complete pack shall reduce the downtime in the event of servicing. A complete pack can be quoted if necessary and if this is of interest then please contact our sales department.