Burks 22498-7.63 Wet End Kit for G7A-2 Series Close-Coupled Centrifugal Pumps
When a G7A-2 has been in service long enough that the impeller is worn thin and the seal is weeping, replacing the whole pump is rarely the sensible move. The Burks 22498-7.63 wet end kit rebuilds the pump from the motor forward — you keep the motor you already have mounted and wired, and everything that touches liquid comes back to factory condition. That is usually the difference between an afternoon of work and a week of waiting on a complete replacement unit.
The kit is built around a full-diameter 7.63 in. impeller, supplied untrimmed so it can be cut to whatever diameter your duty point and connected horsepower actually call for. Alongside it you get the casing and adapter, a carbon/ceramic/Buna-N mechanical seal, the casing O-ring, slinger, pipe plugs, impeller locknut and the hardware needed to put it all back together. On the G7A-2 that means a 2-1/2 in. flanged suction and 2 in. flanged discharge, a seal good to 225°F, and a casing rated for 200 psi working pressure — the same numbers the original pump was built to.
Because it is a genuine Crane Pumps & Systems assembly rather than a mix of aftermarket look-alikes, clearances, wear ring fit and shaft engagement land where they should the first time. G7A-2 pumps do a lot of unglamorous work across HVAC and chilled water loops, cooling towers, boiler feed and condensate return, process water, pressure boosting and general plant transfer service, so it is worth noting that measuring your existing impeller before you trim the new one is the single step that most often gets skipped — and the one most likely to cost you a motor overload later.
Key Features
- Genuine Burks / Crane Pumps & Systems OEM wet end kit, part number 22498-7.63
- Complete liquid-end rebuild for G7A-2 series close-coupled end suction centrifugal pumps
- Full-diameter 7.63 in. impeller supplied untrimmed for field trimming to duty point
- Carbon/ceramic/Buna-N mechanical seal rated to 225°F and 150 psi
- Casing O-ring, slinger, pipe plugs, impeller locknut and mounting hardware included
- Restores original hydraulic performance without replacing the motor
- Reduces downtime compared to sourcing a complete replacement pump
- Bronze-fitted construction for extended wear life in circulating water service
Applications
- HVAC and chilled water circulation
- Cooling tower and condenser water systems
- Boiler feed and condensate return
- Industrial process water transfer
- Pressure boosting systems
- Plant wash-down and general water handling
- Municipal and commercial building water service
- Light chemical and non-abrasive liquid transfer
Specifications
- Part Number: 22498-7.63
- Product Type: Wet End Kit (pump end only, motor not included)
- Pump Series: Burks G7A-2
- Brand: Burks / Crane Pumps & Systems
- Impeller Diameter: 7.63 in. full diameter, trim required
- Impeller Material: Bronze
- Casing Material: Cast iron, bronze-fitted (bronze optional by build)
- Suction Port Size: 2-1/2 in. flanged
- Discharge Port Size: 2 in. flanged
- Mechanical Seal: Carbon / Ceramic / Buna-N
- Maximum Seal Temperature: 225°F (107°C)
- Maximum Seal Pressure: 150 psi (1034 kPa)
- Casing Working Pressure: 200 psi (1379 kPa)
- Maximum Inlet Pressure: 100 psi
- Shaft Sleeve: Bronze
- O-Ring Material: Buna-N
- Motor Frame Compatibility: JM frame close-coupled, per original pump build
- Kit Contents: Casing, adapter, impeller, mechanical seal, O-ring, slinger, pipe plugs, impeller locknut, hardware
FREQUENTLY ASKED QUESTIONS
Q: Does the 22498-7.63 kit include a motor?
A: No. It is a wet end kit only. You reuse your existing JM-frame motor, which is why the kit is a faster and lower-cost path than buying a complete pump.
Q: Why does the impeller need to be trimmed?
A: The kit ships with the full 7.63 in. diameter so it can cover the whole G7A-2 range. Measure your existing impeller and trim the new one to match, otherwise the pump can draw more amps than the connected motor is rated for.
Q: Can I use this kit if my pump has a different suffix after 22498?
A: The suffix identifies the impeller diameter supplied. Kits with a different suffix are the same base assembly with a different impeller, so confirm the number against your pump's nameplate and parts list before ordering.
Q: Is the standard Buna-N seal suitable for hot water systems?
A: It handles continuous service to 225°F. Above that, or with fluids that attack Buna-N, ask about alternate elastomer and seal face combinations before you install.
Q: How long does a wet end replacement typically take?
A: Most technicians complete a G7A-2 wet end swap in a few hours once the pump is isolated and drained, since the motor stays mounted and wired throughout.
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