High-efficiency horizontal multistage centrifugal pump designed to provide consistent pressure and reliable performance for clean water pumping applications. Manufactured by Pedrollo Italy, the pump combines compact design, corrosion-resistant materials, and efficient hydraulic performance to meet the demands of residential, commercial, and light industrial water supply systems.

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The DAB A 110/180 M Inline Circulation Pump is engineered for efficient and dependable water circulation in heating and cooling installations. Manufactured by DAB Pumps Italy, this model is designed to provide stable hydraulic performance while maintaining compact dimensions suitable for tight mechanical rooms and integrated HVAC installations.

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The Refix DE 500 diaphragm expansion vessel is a high-capacity pressure control component designed for closed water systems where thermal expansion and pressure fluctuations must be safely managed. In pressurized service water, heating, and technical water installations, changes in temperature or operating conditions cause water volume to expand. If this expansion is not properly absorbed, system pressure can rise rapidly, leading to safety valve discharge, pipe stress, leakage, premature component wear, and reduced overall system reliability. The Refix DE 500 is engineered to prevent these issues by providing controlled volume compensation and pressure stabilization.

• Brand: Refix (Reflex Winkelmann Group)

• Model: DE 500

• Product Type: Diaphragm expansion vessel

• Design: Without through flow

• Color / Finish: Blue, durable epoxy resin coating

• Nominal Volume: 500 liters

• Maximum Useful Volume: 375 liters

• Maximum Working Pressure: 10 bar

• Factory Pre-charge Pressure: 4 bar

• Diaphragm Material: Butyl, replaceable (DIN EN 13831)

• Operating Temperature Range: -10 °C to +70 °C

• Connection Size: G 1 1/4″ (threaded)

• Installation Type: Vertical, floor-mounted

• Diameter: 740 mm

• Height: 1475 mm

• High Water Connection Height: 133 mm

• Tilt Dimension: Approx. 1506 mm

• Weight: 68 kg

• Compliance / Standards: DIN EN 13831, PED 2014/68/EC

• Typical Applications:

  • Service water systems

  • Fire extinguishing systems

  • Underfloor heating systems

  • Heat source and closed-loop water installations

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The Refix DE 300 diaphragm expansion vessel is engineered to provide safe, stable, and reliable pressure control in closed water systems where volume changes must be absorbed efficiently. In pressurized water and heating installations, temperature fluctuations and pressure variations cause water to expand and contract. Without a properly sized expansion vessel, these volume changes can result in excessive system pressure, frequent safety valve discharge, mechanical stress on components, and reduced service life of pumps, valves, and pipework. The Refix DE 300 is designed to prevent these issues by providing controlled volume compensation and pressure stabilization.

• Brand: Refix
• Model: DE 300
• Product Type: Diaphragm Expansion Vessel
• Design: Without through flow
• Color / Finish: Blue, epoxy resin coating
• Nominal Volume: 300 liters
• Maximum Useful Volume: 200 liters
• Maximum Working Pressure: 10 bar
• Factory Pre-charge Pressure: 4 bar
• Diaphragm Material: Butyl (replaceable)
• Operating Temperature Range: -10 °C to +70 °C
• Connection Size: G 1 1/4″ (threaded)
• Installation: Vertical, floor-mounted
• Dimensions: Height 1267 mm × Diameter 634 mm
• Weight: Approx. 44 kg
• Compliance: DIN EN 13831, PED 2014/68/EC
• Typical Applications: Service Water Systems, Fire Systems, Underfloor Heating Systems, Closed Water Circuits

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The Refix DE 200 diaphragm expansion vessel is engineered to provide reliable pressure control and volume compensation in closed water and heating systems. In pressurized systems, water expands as temperature or pressure increases. Without a correctly sized expansion vessel, this expansion can cause excessive pressure rise, frequent safety valve discharge, premature component wear, and long-term system instability. The Refix DE 200 is designed to absorb these volume changes efficiently, ensuring stable operating pressure and protecting system components.

• Brand: Refix (Reflex Winkelmann Group)

• Model: DE 200

• Product Type: Diaphragm expansion vessel

• Nominal Volume: 200 liters

• Maximum Working Pressure: 10 bar

• Factory Pre-charge Pressure: 4 bar

• Diaphragm Material: High-quality butyl rubber

• Vessel Material: Steel pressure vessel

• External Finish: Blue

• Installation Type: Vertical, floor-mounted

• Application Media: Service water and heating water (closed systems)

• Maximum Diaphragm Temperature: Up to 70 °C

• Standards / Compliance: EN 13831

• Connection Type: Threaded connection

• Through Flow: No

• Primary Function: Pressure stabilization and volume compensation

• Typical Applications:

  • Service water systems

  • Heating systems

  • Closed-loop water installations

• Country of Origin: Germany

• Warranty: As per manufacturer standard

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The VAV500 Vertical Pressure Vessel (10 bar) is designed for modern water pressurisation systems where stable pressure, efficient pump operation, and system protection are essential. In booster sets and pressurized water supply networks, frequent pump starts and stops can shorten pump life, increase energy consumption, and cause noticeable pressure fluctuations at taps and fixtures. A correctly sized pressure vessel helps solve these issues by storing a reserve volume of pressurised water and absorbing pressure variations during demand changes.

• Brand: VAV (please confirm actual brand/manufacturer on the nameplate)
• Model: VAV500
• Applications: Pressure Booster Systems, Water Supply Systems, Pump Cycling Reduction, Pressure Stabilisation, Water Hammer Dampening, Irrigation Booster Sets, Commercial Building Services
• Nominal Capacity: 500 liters
• Maximum Working Pressure: 10 bar
• Standard Pre-charge Pressure: 2 bar
• Working Temperature Range: -10 °C to +100 °C
• Height: 1490 mm
• Diameter: 750 mm
• Connection: 1 1/4″ BSP
• External Finish: Blue RAL 5015
• Membrane Type: EPDM (replaceable)

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The Aquasystem VAV200 vertical pressure tank is engineered to improve pressure stability, system comfort, and pump protection in pressurized Sanitary Water and Booster System applications. In real-world installations, water demand rarely stays constant. A building may experience sharp peaks in consumption during morning and evening usage, while commercial sites can have unpredictable draw-offs from washrooms, cleaning points, irrigation timers, or process-related water usage. These rapid changes in flow often translate into rapid pressure fluctuations. If a system does not have a correctly sized pressure vessel, the booster pump responds directly to every small demand event, which can cause frequent start/stop cycling (short cycling). Over time, short cycling increases wear on the pump motor, electrical controls, and pressure switches—leading to higher maintenance costs and reduced equipment life.

• Brand: Aquasystem Watertech
• Model: VAV200
• Origin: Italy
• Power (P2): N/A (pressure tank)
• Input Power (P1) if known: N/A
• Max Head: N/A
• Max Flow (with l/min and m³/h): N/A
• Suction Size: N/A
• Discharge Size: 1 1/4″ connection
• Applications: Sanitary Water pressure systems, Booster Systems, pressure stabilization, pump cycling reduction, water hammer reduction
• Build Material: Painted steel pressure tank (Blue RAL 5015), replaceable EPDM rubber membrane, galvanised counterflange
• Capacity: 200 liters
• Maximum working pressure: 10 bar
• Standard pre-charge pressure: 2 bar
• Working temperature: -10 °C to +100 °C
• Dimensions: Height 1085 mm × Diameter 600 mm
• Packing size: (Pz1) 610 × 620 × 1111 mm

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The Aquasystem VAV100 vertical pressure tank is built to improve performance, comfort, and durability in pressurised Sanitary Water and Booster System installations. In many buildings, water demand changes constantly throughout the day—showers, taps, irrigation solenoids, washdown points, and appliance cycles all create rapid fluctuations in flow and pressure. When a system has no properly sized pressure vessel, these fluctuations often cause the pump to start and stop repeatedly (short cycling). Short cycling increases motor temperature, stresses contactors and pressure switches, accelerates mechanical wear, and can lead to unstable water pressure at the point of use. The VAV100 solves these issues by acting as a hydraulic buffer, storing a reserve of pressurised water and smoothing out pressure changes.

• Brand: Aquasystem Watertech

• Model: VAV100

• Origin: Italy

• Suction Size: N/A

• Discharge Size: 1″ BSP connection

• Applications: Sanitary Water pressure systems, Booster Systems, water supply pressure stabilisation, pump cycling reduction

• Build Material: Painted steel tank (Blue RAL 5015) with replaceable EPDM rubber membrane; supplied with galvanised counterflange

• Capacity: 100 litres

• Max working pressure: 10 bar

• Standard pre-charge pressure: 1.5 bar

• Working temperature: -10 °C to +100 °C

• Warranty: 24 months

• Dimensions: Height 855 mm × Diameter 495 mm

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The Aquasystem VAV50 vertical pressure tank is built to enhance comfort, reliability, and efficiency in pressurized Sanitary Water systems. In many water supply and booster installations, pressure tends to fluctuate due to changing demand—such as when taps are opened and closed frequently, irrigation zones switch on and off, or multiple fixtures operate simultaneously. Without a correctly sized pressure vessel, the pump responds directly to every small demand change, causing frequent start/stop cycles (short cycling). Over time, short cycling increases mechanical wear, stresses electrical components, and can lead to noisy operation, unstable pressure at fixtures, and higher maintenance costs. The VAV50 is designed specifically to reduce these issues by providing a pressurized water reserve and absorbing pressure fluctuations.

• Brand: Aquasystem Watertech
• Model: VAV50
• Origin: Italy
• Discharge Size: 1″ BSP connection
• Applications: Sanitary Water pressure systems, Booster Systems, pressure stabilisation, pump cycling reduction
• Build Material: Painted steel tank (Blue RAL 5015) with replaceable EPDM rubber membrane; galvanised counterflange

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The Aquasystem VAV300 vertical pressure tank is engineered to ensure stable pressure control and reliable performance in pressurised sanitary water systems. Manufactured in Italy by Aquasystem Watertech, this model belongs to the proven VAV series, known for robust construction, replaceable membranes, and long operational life. With a generous 300-liter capacity, the VAV300 is well-suited for medium to large water systems where pressure fluctuations must be minimised and pump cycling reduced.

• Brand: Aquasystem Watertech
• Model: VAV300
• Origin: Italy
• Capacity: 300 Litres
• Type: Vertical pressure tank with replaceable membrane
• Max Working Pressure: 10 bar
• Standard Pre-charge Pressure: 2 bar
• Working Temperature: -10 °C to +100 °C
• Membrane Material: EPDM rubber (replaceable)
• Tank Material: Carbon steel, externally painted finish
• External Colour: Blue (RAL 5015)
• Height: 1240 mm
• Diameter: 650 mm
• Connection Size: 1 1/4″ BSP
• Installation: Vertical, floor-mounted
• Applications: Sanitary water pressure systems, booster sets, water supply systems

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