The GRACO DT4377 is a stainless steel air-operated double diaphragm pump designed for reliable fluid transfer in demanding industrial environments. It features a stainless steel center section and body, with nitrile (BN) balls and diaphragm, making it suitable for handling a wide range of fluids. This pump is intended for use in applications requiring robust, leak-free, and maintenance-friendly fluid transfer solutions.

Key Features:

• Air-operated double diaphragm pump
• Husky 1590, 1-1/2" NPT
• Stainless steel center section and body, nitrile (BN) balls and diaphragm
• Compatible with a wide range of industrial fluids, especially those requiring stainless steel and nitrile wetted parts
• ATEX rated (explosion-proof for hazardous environments)
• Lube-free operation
• Epoxy-coated exterior for corrosion resistance
• Stainless steel and nitrile wetted parts for chemical compatibility
• Reliable, leak-free design
• Easy maintenance and repair

Applications:
Ideal for transferring fluids in chemical, mining, agricultural, and general industrial applications where robust, leak-free, and maintenance-friendly pumps are required.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, reliability, and safety, and maintains warranty coverage.
• Ensure proper alignment of inlet and outlet connections
• Use appropriate thread sealant for NPT connections
• Check air supply for correct pressure and cleanliness
• Inspect diaphragm and balls for wear during installation and maintenance
• Follow GRACO’s recommended maintenance schedule
• Regularly inspect and replace worn components
• Keep pump and surrounding area clean to prevent contamination
• Use only compatible fluids as specified by GRACO