The GRACO A25844 is a pneumatically operated chemical injection pump designed for high-pressure, reliable chemical dosing in demanding environments. It features a 4-1/2 inch air motor, a ceramic-coated 3/4 inch plunger, and TFE/P seals for enhanced durability and chemical resistance. This pump is ATEX approved, making it suitable for use in potentially explosive atmospheres.

Key Features:

• Pneumatic chemical injection pump
• Python XL, 4-1/2 in Air Motor, 3/4 in Plunger
• Ceramic-coated plunger, TFE/P seals, robust metal housing
• Capable of operating up to 12,000 psi (see instruction manual for specific model limits)
• Designed for chemical injection in oilfield, industrial, and process applications
• ATEX approved (for use in explosive atmospheres)
• High reliability and long service life
• Easy to operate and maintain
• Proven air motor technology
• Suitable for harsh environments (-40° to 176°F / -40° to 80°C)
• Low noise operation (sound pressure: 70.2 dBA for 4.5 in. air motor)

Applications:
Chemical injection in oil and gas well sites, industrial process control, and other applications requiring precise, high-pressure chemical dosing. Not for use with sour gas.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, safety, and compatibility with existing systems.
• Mount the pump vertically using the 1/4 in. NPT(f) inlet port on the bottom
• Ensure inlet plumbing is strong enough to support the pump’s weight
• Install a y-strainer or chemical filter before the pump inlet to prevent debris from reaching the seals
• Follow all safety and regulatory guidelines for ATEX-approved equipment
• Regularly inspect seals and plunger for wear and replace as needed
• Use only recommended lubricants and replacement parts
• Monitor for leaks and unusual noise
• Keep the air supply clean and dry
• Consult the manual for detailed maintenance schedules