Dutypoint Systems Variable Speed Compact Booster Set fitted with 3 multistage vertical pumps (AISI 304 Stainless Steel casings) with motor-mounted variable speed drive, 6 isolation valves (EN12165 Cu Zn 40),3 single disc non-return valves (AISI 304/316) and 2 pressure vessels (certified to PED 97/23/C), all mounted on a powder coated mild steel base assembly with integral anti-vibration mounts.All fasteners are to BS EN3506 A2.70/BS3643. Maximum system pressure 10.0 Bar, maximum system temperature 40degC. As all intelligent control is within the inverters, the panel contains only a door-interlocked isolator, individual pump isolators, power on and fault lamps. A common fault volt-free contact and low water connection device contacts are included as standard. Unit includes the HiRISE Control system; safety feature to prevent surge through the system on initial fill or whenever power is reconnected to the set. This works by restricting the target pressure to a preset level for a predetermined period (fully