Description
The GRACO DFH525 is a double diaphragm pump designed for robust industrial fluid transfer. It is available in various materials, including aluminum, stainless steel, polypropylene, and ductile iron, and is intended for handling a wide range of fluids, including those with solids, in demanding environments.
Key Features:
- Double Diaphragm Pump
- DFH525, 2″ (51 mm) ANSI end-porting
- Aluminum, 316 stainless steel, polypropylene, PVDF, or ductile iron
- Up to 150 gpm (568 lpm)
- Up to 120 psi (8.4 bar, 0.84 MPa)
- Compatible with a wide range of industrial fluids, including those with solids up to 0.25 in
- Lube-free operation
- Epoxy-coated air section for tough environmental conditions
- Available with standard or remote air valve
- Stall-free, low pulsation air valve for smooth operation
- High efficiency and reliability
- Easy maintenance and long diaphragm life
Applications:
Ideal for transferring fluids with solids in industrial, mining, chemical, and agricultural applications. Suitable for use in harsh environments where corrosion resistance and durability are required.
Installation Notes:
- Using genuine GRACO parts ensures optimal performance, reliability, and safety. Non-genuine parts may compromise pump efficiency and longevity.
- Ensure proper alignment of inlet and outlet connections
- Use appropriate thread type (NPT or BSP) as required
- Check for leaks after installation
- Follow recommended maintenance schedules for diaphragm and valve inspection
- Use compatible fluids and avoid exceeding maximum solids size (0.25 in)






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