Shurflo 182200 Accumulator Tank, 9.1" x 4.8" x 3.8", Black

Product Information

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) I think one needs to be a bit careful with "nothing to do with", as there should be an interrelationship between accumulator pre-charge and the cut in setting of the pump's pressure switch.

Can be mounted in any position. However, for complete sanitizing/winterizing, the recommended mounting position is with pre-charge valve stem up. Do not freeze or mount near a high heat source. 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).I had forgotten about Whale's 'surge damper' that does have a single connection to the water pipework. It is designed to link to Whale semi-rigid pipework using a 15mm push-fit connector. For other types of pipework, adapters would be necessary. Because of its small size and the way it works it won't be as effective as 'accumulator' expansion tanks like Fiamma's A20. See: 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 I fitted the Whale product to my previous Herald motorhome in an attempt to cure spitting at the water-taps. However, I can't comment on its effectiveness as the problem turned out to be due to an air leak where the water pipework connected to the fresh-water 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. The Shurflo Accumulator Tank is a bladder type pressure storage vessel and pulsation-dampening device designed to hold water under pressure. The accumulator tank provides additional water storage to assist the pump in meeting the total demands of the system. It extends pressure switch-controlled pump life by reducing pump on-off pulsation. The accumulator is designed to reduce cycling pulsation and pressure spikes, increase the life of your pump and even save battery power. The Shurflo accumulator easily handles pressure requirements from 20 PSI to 125 PSI.

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??? Shurflow pre-pressurized accumulator tanks reduce cycling pulsation and pressure spikes, increase the life of your pump and even save battery power. NSF certified. Precharge to 20 psi. 24 oz. Nylon Tank. Dimensions: 230 x 100mm. Maximum PSI: 125 Fitting an expansion tank is simple enough in principle, but can be a real challenge if space is tight. All the expansion tanks I know of seem to require fitting in an upright position. There may also be a need to adapt the tank's water-connections if they don't match the type of water system used on the leisure vehicle. For example, Fiamma's A20 expansion tank is designed to connect to a traditional system using flexible water hoses and Jubilee-clips. Adaptation would be required to connect an A20 to a system using semi-rigid water pipework and push-fit connectors.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