These ChallengerTM high quality pressure tanks are ideally suited for a wide range of applications, including , booster systems, thermal expansion, irrigation systems and hydraulic hammer arresting.                      Readily serviceable and fully repairable with a high five year warrantee.                            WARRANTEE - 5 YEARS FROM DATE OF USER PURCHASE                                The ChallengerTM series has a water chamber, patented controlled action design.   Efficient and cost effective, ChallengerTM tanks are designed with patented controlled action double diaphragm assembly.     The double diaphragm assembly is clenched together with a positive lock internal clench ring which contains drawdown water in a pre charged air atmosphere, thus providing separation between the diaphragm and tank wall.    This "air buffer"  design means few problems with condensation.   Constructed with an FDA approved high grade butyl, the diaphragm assembly seals water in a true non-corrosive chamber.                                                   On the exterior the almond coloured two-part polyurethane paint finish over an epoxy undercoating provides hundreds of hours of UV and salt spray protection.                                            The stainless steel port diffuser and system connection directs water into the tank agitating it as it enters, in order to suspend debris and solids to prevent clogging the port.                                          Pressure Wave tanks are equality tested at several stages on the production line to insure the structural integrity of every tank.                                  Comprehensive pre-charged air cushion.                       Controlled action diaphragm.                       Positive lock internal clench.                       Two part polyurethane / epoxy primed paint finish.                                      Patented water connection.       Welded stainless steel elbow.                        

These extremely strong pressure tanks are a economical solution for most owners.       They are compact and light weight, therefore easy to handle and quick to install.       Readily serviceable and fully repairable with a one year warrantee.                                                 WARRANTEE - 1 YEAR FROM DATE OF USER PURCHASE                                               Protected precharge valve.                                  Durable steel tank.   Deep-drawn steel shell for extra strength.  Welding process (MIG) eliminates interior rough spots and sharp edges and prevents damage to diaphragm and liner.                                               Pre - pressurised air chamber.                                                Butyl diaphragm, isolates water from air.                                                 External powder coating coating: no rusting.                                                Mild steel connection.                                  Pump to be mounted on top of tank for space saving and ease of maintenance.                       Also useful against water hammer.                       Mild steel connection.                       Maximum working temperature 99 degrees C.                          

These high quality pressure tanks are ideally suited for a wide range of applications, including , booster systems, thermal expansion, irrigation systems and hydraulic hammer arresting.       They are compact and light weight, therefore easy to handle and quick to install.       Readily serviceable and fully repairable with a high five year warrantee.                                             WARRANTEE - 5 YEARS FROM DATE OF USER PURCHASE            The Pressure WaveTM series is constructed of a virgin polypropylene liner combined with a FDA approved high grade butyl diaphragm.   This is held against the wall of the tank with a steel clench ring.   The brass air valve, sealed by a threaded o-ring valve cap prevents air leaks.   Water enters the tank through a patented water stainless steel water connection.    The diaphragm and liner are both reinforced in specific wear areas for longer life.    All internal parts including the air valve are rounded to prevent piercing of the diaphragm in extreme conditions.   The water connection uniquely provides a dual water / air seal ensuring a complete leak free and maintenance free pressure vessel.     On the exterior the almond coloured two-part polyurethane paint finish over an epoxy undercoating provides hundreds of hours of UV and salt spray protection.                                                On the exterior the almond coloured two-part polyurethane paint finish over an epoxy undercoating provides hundreds of hours of UV and salt spray protection.                                           Pressure WaveTM tanks are equality tested at several stages on the production line to insure the structural integrity of every tank.                     Single diaphragm design.                   Two part polyurethane epoxy primed paint finish.                       Leak free o-ring sealed air valve cap.                       Patented water connection.                       Virgin polypropylene liner.                         

A selection chart to help you choose the right pump pressure vessel for the right application.   Click here to download the tank selection chart.

These SuperFlowTM quality pressure tanks are ideally suited for a wide range of applications, including , booster systems, thermal expansion, irrigation systems and hydraulic hammer arresting requiring high pressures.       Readily serviceable and fully repairable with a two year tank  and a 1 year membrane replacement warrantee.                                     WARRANTEE - 2 YEARS FOR TANK REPLACEMENT                                       - 1 YEAR FOR MEMBRANE REPLACEMENT           The SuperFlowTM series offers an interchangeable membrane which features a unique tiered design that is more durable.   All SuperFlowTM models 100 litres and above are designed with a built - in pressure gauge, a convenience feature for maintenance purposes.                                                As with all GWS products, SuperFlowTM vessels are manufactured to strict quality standards.                                                SuperFlowTM vessels represent the best value for the investment with rugged construction and are designed to serve your needs for years to come.                                           Additional access opening.                                   Brass air valve.          Long lasting polyurethane paint.             Heavy duty corrosion resistant flange connection.          Pressure gauge available on SF 100v model.          Butyl / EPDM tiered membrane.          Reinforced tripod legs.