Hydrophores Membrane 100 L MB080F2P Potable Water Expansion Vessel

Potable water expansion vessel with 100-liter capacity, engineered for reliable pressure management in domestic and commercial water systems. Its butyl rubber membrane and robust steel construction ensure long-term performance and safety.

Advantages

The fixed diaphragm design separates water from the air cushion, preventing waterlogging and maintaining consistent pressure. The deep-drawn carbon steel shell with epoxy powder coating resists corrosion, while the galvanized steel flange adds durability. Factory pre-charged to 1.5 bar, it's ready for installation and reduces pump cycling, extending system life.

Suitable for

• Potable water systems in residential and commercial buildings
• Booster sets to maintain stable pressure
• Heating systems requiring expansion capacity
• Water supply networks with variable demand

Key specifications

• Capacity: 100 liters
• Membrane material: Butyl rubber
• Connection: 1" BSP male
• Maximum operating pressure: 10 bar
• Factory pre-charge pressure: 1.5 bar
• Shell material: Deep drawn carbon steel
• Flange material: Galvanized steel
• Coating: Epoxy powder coating
• Orientation: Vertical
• Colour: Blue
• Operating temperature: -10°C to +99°C
• Certifications: WRAS Approved, CE
• Mounting: Floor standing
• Diameter: 490 mm
• Height: 840 mm

Recommendations

For optimal performance, install the vessel vertically on a solid floor near the pump or water heater. Ensure the pre-charge pressure matches the system's cut-in pressure. Regularly inspect the air valve and membrane condition as part of routine maintenance.