GRUNDFOS GFXA
ASME Replaceable Bladder Hydro-pneumatic Tank for Booster Expansion Pressure Control
The Grundfos GFXA pressure boosting expansion tanks are replaceable bladder type pre-charged hydro-pneumatic tanks that meet ASME code design regulations and comply with NSF/ANSI Standard 61. The GFXA expansion tanks are used in commercial and industrial water well, pressure boosting, or other non-heated potable water system applications — providing sufficient flow based on demand, by delivering water under pressure between pump cycles (e.g., required tank drawdown.) Water is stored in a replaceable butyl bladder, eliminating problems such as water-logging and tank corrosion
All GFXA tanks can be installed both vertically or horizontally, and allow the bladder to be replaced without having to remove the tank from its mounting an be equipped with large service openings
KEY FEATURES AND BENEFITS
• Hydro-pneumatic tank helps protect the pump and pressure switches against short-cycling
• Reduction in surge pressures, dampening pressure spikes and minimized pump run times help extend pump motor service life and improve system operation
• Integrated pressure gauge
• Bladder integrity monitor included
• Easy-access air valve
• Tamper-resistant secure guard mount
• Eliminates water logging and corrosion issues found with diaphragm tanks since water is completely enclosed in a replaceable butyl bladder that separates water from air
• Full flow design compatible
CONSTRUCTION
• Factory Pre-charged: 40 psi (field adjustable)
• Material: Available in carbon steel, 304 or 316L stainless steel
• System Connection: Epoxy Coated
• Replaceable Bladder: Replaceable heavy-duty butyl bladder that are NSF 61/FDA approved (other materials available upon request)
• Standard Design Pressure: 125 psi (8.6 bar), with higher pressure ratings available
• Temperature Range: -20°F to 240°F
• Designed and fabricated in accordance with ASME Boiler & Pressure vessel code
• Products comply with NSF/ANSI Standard 61
BROCHURE