Description
The GRACO G-Chem Pump with HNBR Seal and 3/8 in plunger is a chemical injection pump designed for reliable, low-maintenance operation. It features a robust construction with HNBR (Hydrogenated Nitrile Butadiene Rubber) seals and is intended for use in chemical injection applications, ensuring precise and consistent delivery of chemicals within industrial systems.
Key Features:
- Chemical Injection Pump
- Simplex, 3/8 in Plunger
- Stainless steel wetted parts, HNBR seals, UHMWPE and PTFE packing materials
- Designed for integration with GRACO chemical injection systems and compatible with various chemical fluids (see manual for chemical compatibility)
- Easy access to pump plunger and packings
- Plunger packings can be replaced in 10 minutes or less
- Three defined stroke adjustment positions
- Adjustable fluid packing for longer seal life
- Proprietary poppet style check valve to prevent sticking
- Robust and simple design for reliability and ease of maintenance
- Suitable for ordinary location environmental temperature range: -40 to 131F (-40 to 55C)
- Maximum sound pressure <70 dBa
Applications:
Ideal for chemical injection in industrial, mining, agricultural, and manufacturing environments where precise and reliable chemical dosing is required.
Installation Notes:
- Using genuine GRACO parts ensures optimal performance, reliability, and safety of the chemical injection system.
- Verify all system valves are open before priming the pump to avoid equipment damage
- Follow electrical connection instructions as per the manual (115 VAC input for this model)
- Mount securely using provided mounting holes
- Refer to the manual for specific installation and maintenance procedures
- Adjust cycle rate and/or stroke as needed to achieve desired flow rate
- Regularly inspect and replace plunger packings as needed
- Ensure seals and wetted parts are compatible with the chemicals being injected
- Keep the pump clean and free from debris
- Consult the manual for detailed maintenance schedules and procedures






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