Variable Speed Pressure System

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Aline Variable Speed Pressure System

Aline Variable Speed Pressure System utilise the latest in technology and expansion friendly interfaces. The interfaces and PLC’s used within Aline’s Variable Speed Pressure Systems are designed for ease of use, compatibility with multiple input and output sources, and flexibility in program alterations or expansion. In addition to this, Aline Variable Speed Systems are easy to maintain and service. There is no need for additional external controllers, or over complicated parameters and adjustments.

All Aline Variable Pump Systems are programmed to run efficiently and hassle-free. Furthermore, all Aline technicians are qualified and trained in commissioning, adjusting and troubleshooting these Pumping Systems. This removes the need for any third party technicians, who are often unreliable and lack urgency in the service response. Aline Variable Speed Systems are compatible with any brand of pressure pump you may require, be it Grundfos, Davey, Ebara, Lowara and many others.

The Systems come equipped with the following as standard:

• One, Two, Three or Four Pressure pumps as standard (More pumps can be utilised if required)
• Inlet side of each pump pre-plumbed with an isolating valve and connected to a Stainless Steel common inlet manifold.
• The discharge side of each pump pre-plumbed with an isolating valve and a non-return valve connected to a common Stainless Steel discharge manifold with a separate main isolating valve.
• A 0-1800kPa 85mm pressure gauge is provided together with a pressure tank.
• Mains change over and/or mains bypass
• 1 x 20m float switch for low-level signal on tank fed systems
• Site wiring of float switch to panel location within 6m. 50mm conduit from pit to wall (with long radius bends) supplied by others. Incoming power supply to a panel by others.

The total system is mounted on a galvanized steel base plate with the following Control Panel as Standard:

• Main isolating switch
• Circuit breakers for each pump and control circuit
• Variable frequency inverter housed inside panel c/w required fan cooling
• Aline model Hydro Plus 4000 HMIPLC c/w display of:
  • System pressure
  • Total hour run meter for each pump
  • Low discharge pressure indication
• Manual/off/auto switch for each pump
• Indicators for: Power on/Pump run/Pump fail/System fault
• Volt free contacts for each pump run/each pump fail/low pressure
• All housed in a weatherproof sheet metal wall mounted enclosure

To ensure correct system operation, the following suction details must be observed.

• Dual systems with suction lift require two (2) suction lines – a common suction line is not suitable. Two-foot valve strainers are supplied loose for site plumber to install
• NOTE: Ensure installation includes provision for access to the foot valves for servicing requirements
• The pump suction line must only rise to the pump – not rise and fall.
• The suction pipe must be of sufficient diameter and perfectly airtight.
• Provide priming outlets at the pumps.
• Provide a 50mm conduit to the rainwater tank for the low-level float switch.
• A submersible pressure pump should be used if a correct suction condition cannot be achieved.
• Suction head and run to be confirmed prior to ordering.