Dayliff Varem KS Kit Quality Water Pressure Kit Pressure Tank

Pressure tanks are important components of pressurised booster supply systems where automatic pumped water supply is provided by means of pressure switch controlled pumps. The tanks have two functions; to cushion pressure surges as the pump starts and stops and also to provide a drainage supply into the system to control pump cycling

VAREM pressure tanks have been specially designed for pressurised booster installations and are also suitable for fire fighting and irrigation systems. The design incorporates a replaceable butyl rubber membrane which offers the following features:-

• Suitable for all types, including corrosive and hard, waters as the water only comes into contact with the membrane.
• Membrane design eliminates the necessity for constant air recharging.
• Horizontally collapsing membranes (except KS model) avoids contact with tank sides and therefore increases life.
• Membrane is simply replaceable.
  

VAREM pressure tanks are quality products approved by a number of international standards organizations. They are the ideal solution for all pressured water supply installations and if properly selected will provide many years of maintenance free operation.

Pressure Tank Sizing Guide

Correct tank sizing is important and is determined by the system flow rate and pump start and stop pressure settings

Sizing must be based upon the system flow at which the maximum cycle frequency occurs. As a rule of thumb this can be taken as 65% of the flow at pump stop pressure.

Required draining volume is then the maximum cycle frequency flow divided by twice the specified maximum number of cycles per hour. Generally 60 cycles per hour is considered acceptable. Tank size selected is then that nearest to the volume required. Drainage volume is as follows:-

Note that when specifying pressure systems the following is important: