Grundfos

Grundfos GT-D are maintenance-free double-diaphragm pressure tanks with a capacity ranging from 100 to 450 litres.
The tanks are designed for a maximum operating pressure of 10 bar and a maximum liquid temperature of 90 °C.

The tank is a steel pressure tank with a patented controlled-action CAD-2 diaphragm assembly, pre-charged to 1.4 bar. The tanks have a non-replaceable, chlorine-resistant 100 % butyl diaphragm with a precision-moulded copolymer polypropylene liner for superior air and water separation. The diaphragm assembly seals water in a truly non-corrosive chamber, while the air chamber is sealed with a fixed O-ring and closed cell foam, which provides long-lasting and service-free durability.

The tank is appropriate for drinking-water applications in combination with installations with booster systems, well systems, irrigation systems, thermal expansion, hydronic heating expansion, hydraulic hammer arresting and clean water backwash for ultra-filtration systems. The tank also features:

GT-HR-250 PN6 R1 V

Grundfos GT-HR are pressure tanks with a capacity ranging from 8 to 1000 litres. The tanks are designed for a maximum operating pressure of 6 bar and a maximum liquid temperature of 90 °C.

The tank is a steel pressure tank with a non-replaceable rubber diaphragm for heating applications. The tanks have a non-replaceable diaphragm, dividing the tank chamber into two compartments: the upper compartment is pre-charged with compressed nitrogen (1.5 bar) while the lower compartment contains the diaphragm itself, which is a polypropylene (PP) liner.

A pressure tank ensures controlled pressure in the water supply and thereby limits the switching frequency of the pump unit in case of low water consumption or loss due to leakage. This ensures increased comfort in your installation by limiting the start and stop frequency of your pump. It also creates a more stable assembly by compensating for pressure drops when a tap is opened, while reducing problems with water hammer in the pipes.