The Prestige range of water softeners complements the range of water pre-treatment products and services. Use of water softening minimises the problems caused by hard water scale such as reduced heat transfer and pipe work blockages. The models 350 to 1300 provide a maximum flow rate range of 14 to 42m 3 /hour. Regeneration Control for simplex models is via either timer (T) or meter (M) control. Features and Benefits Microprocessor Electronic Controls Quality materials of construction to maximise plant life. 24V operation for safety. Safety Brine Valve to prevent salt tank overflow. Full range of ancillary equipment available for a packaged installation. Equipment, Service and all Water Treatment Equipment needs covered from one point of contact. Minimal control interfaces for straightforward ease of installation. Local and remote status indication available to achieve accountability at all times.
SPECIFICATION The following items shall be supplied as part of each duplex softener. Pressure Vessel One seamless pressure vessel complete with support skirt constructed from composite material. Regeneration Control Valve One five cycle mechanically operated regeneration control valve fabricated from corrosion resistant bronze with 560CD rubber seals and `O' rings and PTFE coated pistons. Complete with microprocessor electronic control timing and staging motors, an integrated injector, drain line flow controller and integral water meter (on W versions only). Ion Exchange Resin An appropriate quantity of potable quality ion exchange resin. Regeneration Equipment One HDPE salt storage tank complete with brine well, safety brine valve, brine line flow controller and suction line. Electrical Supply: A mains isolator, fused at 5 amps, must be provided to the unit supplying either 110V or 240V, single phase 50Hz AC. A transformer provides 24V to softener control valve and solenoid valve, if fitted. Volt free contacts are available for remote monitoring and control of optional service valve isolator. Water Quality Test Set One test set to ascertain hardness content of treated water. Instructions One set of installation and operating instructions. INSTALLATION The range of softeners is designed with ease of installation in mind. To that end installation of the units should normally be straightforward if the following points are adhered to. Alternatively, PWE can provide a full installation service for all the water treatment plant. Pressure The inlet water pressure to the unit must be between 1.8 and 8.5 bar at all times i.e. service and regeneration.
If the minimum pressure cannot be guaranteed, the performance of the softener unit will be impaired and, in particular, the regeneration process will almost certainly not operate efficiently leading to a malfunctioning of the softening procedure. Consideration should also be given to the pressure available at the outlet from the softener, to ensure that this is sufficient to deliver the required duty to service. If low pressure is likely to adversely affect the performance of the softening equipment, a break tank and booster set should be installed. If the maximum pressure is exceeded, damage is likely to occur to the softening equipment. In these circumstances, pressure-reducing equipment should be installed. PWE can supply suitable equipment to overcome any such pressure problems. Positioning The units are free standing and require a solid, level base capable of supporting the full working weight. Ensure the maximum recommended access dimensions are available and consider the salt re-fill requirement. Salt is normally supplied in 25kg bags. Particular attention must be paid to ensuring that there is a suitable drain, local to the softener, capable of taking the maximum flow from the unit during a regeneration period. Pipe work The installer should run pipe work and drains to and from the softener as detailed in the enclosed schematics. Plastic or copper pipe is preferable. Galvanised pipe should be avoided.
F 1415 G 1415 A 1416 1416 C J 2.7 m E D H A B BRINE TANK Model 350 B Dimensions (mm) 500 700 800 1000 1300 A Overall height 2135 2365 2365 2630 2700 2900 B Overall width 1640 1888 2050 2160 2310 2480 Softener vessel diameter 610 762 910 910 1070 1220 C Height of salt and brine measure 1110 1315 1315 1520 1520 1520 tanks * Diameter of salt and brine measure 1030 1100 1100 1200 1310 1310 tanks * D Drain connection ¾ ¾ ¾ 2 2 2 E Brine draw connection ½ ½ ½ 1 1 1 F Overall depth 1475 1545 1720 1750 1950 2080 G Front access requirement 500 500 500 500 500 500 H Side access requirement 1000 1000 1000 1000 1000 1000 J Height to inlet & outlet connection 940 1405 1405940 1405 1710 1405 Inlet Connection BSP Female 2 2 2 3 3 3 Outlet Connection BSP Female 2 2 2 3 3 3 Salt tank overflow connection ½ hose connector Minimum headroom requirement 500
n.b. * twin tanks or separate bulk salt saturators are recommended for 1000 litre softener and above due to the large quantities of salt used per regeneration. Softener Range Performance Data 350, 500,700, 800, 1000 & 1300 litre Capacity Cold Water Simplex Units Model 350 500 700 800 1000 1300 Resin Volume (litres) 350 500 700 800 1000 1300 Valve Type 2910 2910 2910 3900 3900 3900 Maximum Service Flow (m 3 /hr) 14 18 18 28 35 42 Minimum Service Flow (m 3 /hr) 0.7 1 1.4 1.6 2 2.6 Capacity (grams) 1 17500 20000 35000 40000 50000 65000 Maximum Operating Pressure (bar) 6 6 6 6 6 6 Minimum Operating Pressure (bar) 1.8 1.8 1.8 1.8 1.8 1.8 Pressure Drop @ 100% Flow (bar) 1.8 2.4 2.5 1 1 1 Pressure Drop @ 50% Flow (bar) 0.45 0.6 0.7 0.4 0.4 0.4 Regeneration Volume to Drain (m 3 ) 2.7 4 5.6 6.4 8 10.4 Regeneration Time (minutes) 80 80 90 90 90 90 Salt Used/Regeneration (kg) 49 70 98 112 140 182 Salting Level (grams/litre) 140 140 140 140 140 140 Maximum Operating Temperature ( o C) 43 43 43 43 43 43 Inlet/outlet Connections - BSPM 2 2 2 3 3 3 Working Weight (kg) 2240 2600 3000 3350 3650 3950 Shipping Weight (kg) 580 940 1200 1450 1550 1970 NOTES: 1. Volume of water between regenerations (m 3 ) = Capacity (grams)/raw Water Hardness (as ppm CaCO3). 2. Drain Capacity should be 110% of Regeneration Flow. 3. Weights are approximate (excludes salt storage weight)