Dab Pumps - EsyBox Max Commercial Constant Pressure Booster Pump

Brand: Dab Pumps

DAB EsyBox Max Commercial Electronic Booster Set

The DAB EsyBox Max is an integrated pumping system for pressurization in commercial building service, built for engineers and contractors who need a booster set that can be assembled on site. Each unit is an electronic vertical multi-impeller pump with a display, suction and discharge pressure sensors, a non-return valve and an integrated expansion tank; the modular Esydock base carries single, double or triple pump groups, and an additional kit joins two double bases into a four-pump system.

A single unit moves up to 76.6 GPM, with DAB's May 2025 USA catalog rating the 45/120 at 63 GPM and the 60/120 and 85/120 at 76 GPM, and produces up to 315 ft of head depending on model while holding a constant set pressure anywhere from 15 to 174 PSI. The water-cooled permanent magnet motor is more efficient and saves energy per DAB, and the compact, quiet package makes it suitable for mechanical rooms adjacent to occupied space. Three power sizes cover medium and large condominiums and high buildings, including those above 14 floors, and both single phase 208-240 V and three phase 380-480 V versions are offered.

Available Models

• EsyBox Max 45/120 T 380-480 V: 3 impellers, three phase 380-480 V, 1.93 kW (2.59 HP), 3.4 A, 63 GPM maximum flow, 190 ft maximum head, 83 PSI maximum differential pressure. Electrical and hydraulic data as published in DAB's 2026 EsyBox Max technical leaflet; DAB has not published a USA item code, catalog row or shipping weight for this three phase 45/120 version
• EsyBox Max 45/120 M 208-240 V (60217370): 3 impellers, single phase 208-240 V, 1.97 kW (2.68 HP), 9.4 A, 63 GPM maximum flow, 190 ft maximum head, 83 PSI maximum differential pressure
• EsyBox Max 60/120 M 220-240 V (60207561): 3 impellers, single phase 208-240 V, 2.68 kW (3.6 HP), 12.5 to 11.5 A, 76 GPM maximum flow, 226 ft maximum head, 97 PSI maximum differential pressure
• EsyBox Max 60/120 T 380-480 V (60207560): 3 impellers, three phase 380-480 V, 2.65 kW (3.5 HP), 4.4 A, 76 GPM maximum flow, 226 ft maximum head, 97 PSI maximum differential pressure
• EsyBox Max 85/120 T 380-480 V (60207559): 4 impellers, three phase 380-480 V, 3.50 kW (4.7 HP), 5.3 A, 76 GPM maximum flow, 315 ft maximum head, 136 PSI maximum differential pressure

Specifications

• Maximum Flow: 63 to 76.6 GPM per unit depending on model
• Constant Pressure Set Point Range: 15 to 174 PSI
• Operating Pressure: 174 PSI
• Maximum Inlet Pressure: 73 PSI
• Maximum Suction Lift: 13 ft with a foot valve
• Maximum Liquid Temperature: 104 F
• Maximum Ambient Temperature: 113 F
• Motor Protection Class: IPX5
• Motor Insulation Class: F
• Impeller Material: Technopolymer with steel wear rings
• Motor: Water-cooled permanent magnet, stainless steel jacket, AISI 303 stainless steel shaft
• Inlet and Outlet Connections: 1-1/4 in and 2 in NPT on the pump unit per DAB's May 2025 USA catalog; the EsyDock Max base is threaded 2 in NPT
• Installation: Fixed, vertical position
• Certifications: NSF/ANSI 61, NSF/ANSI 372, UL, CSA
• EsyBox Max 45/120: 3 impellers, 63 GPM maximum flow, 190 ft maximum head, 83 PSI maximum differential pressure
• EsyBox Max 60/120: 3 impellers, 76 GPM maximum flow, 226 ft maximum head, 97 PSI maximum differential pressure
• EsyBox Max 85/120: 4 impellers, 76 GPM maximum flow, 315 ft maximum head, 136 PSI maximum differential pressure
• Single Phase Power Input (M models): 208-240 V, 60 Hz
• Three Phase Power Input (T models): 380-480 V, 60 Hz
• Shipping Weight: 63.9 lb per pump unit for 45/120 M, 60/120 M and 60/120 T; 66.1 lb for 85/120 T

Key Features

• Modular On Site Assembly design: single, double, triple or quadruple pump sets are built from the same pump unit and an Esydock base
• Variable frequency drive holds a constant discharge pressure from 15 to 174 PSI regardless of demand
• Water-cooled permanent magnet motor for higher efficiency and energy saving
• Pressure sensors on both suction and discharge, plus an integrated non-return valve and expansion tank inside each pump
• Large onboard display for configuration and monitoring, with the H2D app and integrated Wi-Fi module for remote control
• DSync technology auto-detects language, time and units, then synchronizes the remaining pumps in a booster set
• Esy I/O expansion module available for building management system integration
• Integrated protections for dry running, current and voltage faults, overheating, freezing, anti-blocking and anti-cycling
• Compact and quiet enough for installation in occupied areas of a building
• Approved to NSF 61, NSF 372, UL and CSA standards per DAB USA published documentation

Ideal Applications

• Pressure boosting in commercial buildings and building service systems
• Medium and large condominiums and high-rise buildings, including above 14 floors
• Multi-pump booster sets of two, three or four units for staged demand and redundancy
• Hotels, schools, healthcare and light industrial water supply
• Municipal feed boosting where inlet pressure is inadequate at upper floors
• Irrigation and process water systems needing steady pressure over a wide flow range