79.3 Gal. Well Tank, Stand Model

Zilmet ZHP302BC – 79.3 Gallon Pre-Pressurized Well Tank for Potable Water Systems

The Zilmet ZHP302BC is a 79.3-gallon pre-pressurized diaphragm tank designed for use in potable water well systems. Engineered to regulate pressure, reduce pump cycling, and protect system components, this model supports large residential and light commercial applications with high drawdown demands.

Built with a seamless diaphragm and internal polypropylene liner, the ZHP302BC maintains a physical barrier between the air and water chambers, preventing air migration and minimizing risk of waterlogging. The tank features a bottom-mounted 1-1/4" NPT connection and is constructed from carbon steel with a corrosion-resistant powder-coated finish.

Construction and Performance Features

• Total Volume: 79.3 gallons
• Connection: 1-1/4" NPT bottom outlet
• Shell Material: Carbon steel with baked epoxy-polyester coating
• Diaphragm: Seamless synthetic rubber, designed to avoid creases and sediment traps
• Internal Liner: Virgin polypropylene for potable water compatibility
• Maximum Working Pressure: Rated for standard high-pressure water systems

Design Advantages

• Pre-Charged Configuration: Factory set air charge; field-adjustable to match system static pressure
• Seamless Diaphragm Design: Eliminates trapped air and flex fatigue common to bladder-style tanks
• Bottom Connection Orientation: Facilitates vertical installation and simplifies system piping layout
• Corrosion Protection: External finish resists environmental degradation in utility spaces and well houses

Installation Guidelines

The ZHP302BC is intended for vertical installation in pressurized potable water systems. Install on a solid, level base and ensure proper anchoring when located in seismic or vibration-prone areas. Verify pre-charge pressure before system fill and adjust to match the pump cut-in setting. All installation work should be performed in accordance with local codes and standards governing well tank systems. Professional installation is recommended to ensure proper sizing, orientation, and system balancing.

Application Use

Suitable for submersible and jet pump systems requiring large water storage capacity and reduced pump starts. The tank's volume and construction make it ideal for residential or light commercial settings where consistent delivery pressure and long service life are critical.