About this deal
It is supplied with straight and angled 13mm flexible hose connectors and self-tapping screws for fitting. Precharged at 0.9 bars (13 Psi) the Fiamma A20 can be charged with its special valve by a normal compressor so it can be adapted to all pressure switch pumps that are on the market. Installation Guide Models with 1/2-14 ports: Insert the rubber washers in each port. Threaded fittings (plastic/nylon only) should be torqued approximately 1/2 to 1 turn after hand-tightened. Never exceed 6 ft/lbs [88 Nm] of torque on the ports. Plumb the system using high pressure (2x pump rating), braided, flexible tubing to minimize vibration/noise. Use a standard tire air pump and pressure gauge. The pre-charge valve stem cap MUST be tight to prevent air leakage. The accumulator may be placed anywhere in the pressurized side of the plumbing. The ports are non-directional in flow and do not have to be plumbed in line (one side can be plugged).
It seems to be generally agreed that your accumulator needs to be pre-charged to a few psi below the cut-in pressure of the pump for things to work in an optimal way. (E.g. pump with cut-out at 30 psi, and cut-in at 20 psi - set accumulator pre-charge to say 17 psi)
The pulsating water flow generated by pressure switched water pumps is replaced by a constant flow of water when you install a Fiamma A20 Universal Expansion Tank. Your water pump draws water from your water tank then pumps that water through the expansion tank. The internal pressurised diaphragm in the expansion tank eliminates any pulsating water flow and ensures a smooth, continuous flow instead, in the quantity required for showering or running a tap. Universal use
The universal expansion tank also saves on water and electricity, increasing the pump performance and prolonging the life of the pump, all for an outlay of around half the price of the pump. The tank builds up a head of water which under pressure comes out in a steady stream due to the internal pressurized diaphragm providing a smooth, surge-free continuous flow. The A20 can be dismantled for diaphragm operations if necessary. Can be adapted to a multitude of pressure switch pumps The A20 is designed for universal use and is therefore an ideal addition to our Shurflo Trail King water pumps, previous models and all other types of pressure switch pumps. The Fiamma A20 Universal Expansion Tank is small and compact, not much bigger than a 750ml bottle of water. Extend the life of your pump and cut water consumption with theFiamma A20 universal expansion tank Our collections by our couriers are happening as usual. As it stands, delivery times are not being affected too much. Please be aware though that Royal Mail and other couriers are sometimes prioritising essential items so please bear with us if your delivery takes slightly longer than expected.I had a look at the pump t'other week and I noticed this "schrader type valve"....so does the system need a foot pump to take it to 20psi???