The GRACO 255355 is an electronic preset dispense meter designed for accurate metering and dispensing of anti-freeze (50:50 antifreeze/water mix) in professional settings. It features a rigid extension and a standard quick-close nozzle, constructed with durable materials for reliable operation within GRACO dispensing systems.

Key Features:

• Electronic Preset Dispense Meter
• SDP5 Series, 1/2" Inlet
• Aluminum, stainless steel, PBT/PC, nitrile rubber, carbon steel (wetted parts)
• Up to 5 gpm (18.9 lpm) for SDP5 models (specific to preset anti-freeze meters); up to 14 gpm (53 lpm) for SD Series in general
• Maximum working pressure: 1500 psi (103.4 bar) for oil; 900 psi (62 bar) for 50:50 antifreeze/water mix
• Designed for use with petroleum-based lubricants and 50:50 antifreeze/water mix; not for windshield washer solvent
• Preset electronic meter for accurate, repeatable dispensing
• Rigid extension with standard quick-close nozzle for anti-freeze
• Durable, long-lasting construction
• Easy-to-read digital display
• User-friendly keypad for preset volume entry
• Battery-powered (4 AA alkaline or lithium)
• Maximum totalizer: 999,999 gallons or liters
• Maximum recorded dispense: 999.99 units
• Maximum preset volume: 999.9 units
• Operating temperature: 4°F to 158°F (-4°C to 70°C)
• Storage temperature: -40°F to 158°F (-40°C to 70°C)

Applications:
Professional dispensing of anti-freeze (50:50 antifreeze/water mix) in automotive, industrial, and maintenance environments. Suitable for use in vehicle service centers, fleet maintenance, and industrial lubrication systems.

Installation Notes:

• Using genuine GRACO parts ensures compatibility, reliability, and optimal performance of the dispensing system.
• Ensure the meter is installed according to GRACO guidelines for pressure and flow requirements
• Use appropriate fittings and adapters for the 1/2" NPT inlet
• Verify compatibility with the fluid being dispensed (anti-freeze/water mix only)
• Regularly inspect and maintain wetted parts for wear and corrosion
• Replace batteries as needed for uninterrupted operation
• Periodically check for leaks and proper nozzle function
• Clean the meter and nozzle after use to prevent clogging
• Store the meter within recommended temperature limits
• Refer to the manual for troubleshooting and calibration procedures