Grundfos 98434904 Shaft Seal Kit
Identify and resolve pump leakage with the Grundfos 98434904 Shaft Seal Kit, a critical service component designed for high-performance end-suction and vertical in-line pumps. This OEM Grundfos pump repair kit features the BQQE mechanical seal configuration, utilizing silicon carbide (SiC/SiC) seal faces and EPDM elastomers for superior chemical resistance and thermal stability. Engineered for 28 mm shafts, it is the standard replacement for Grundfos TP, NB, and NK series pumps, ensuring a zero-leakage interface between the rotating shaft and the pump housing. As a technical HVACR specialist, you know that maintaining the integrity of the secondary seals is paramount; this kit includes the stationary seat, rotating head, and required O-rings to restore factory-spec pressure retention. High-durability construction minimizes frictional torque and prevents premature failure in hydronic heating, cooling, and industrial water circulation systems. Ensure pump shaft seal compatibility by verifying your model number before field installation to maintain optimal system efficiency and prevent costly downtime.
Key Benefits for Contractors:- System Compatibility: Specifically engineered for Grundfos TP, NB, and NK series centrifugal pumps with 28 mm diameter shafts.
- BQQE Seal Construction: Features EPDM rubber and silicon carbide faces, providing excellent resistance to glycol-based fluids and treated water.
- Leak Prevention: High-precision mechanical seal replacement stops fluid migration along the shaft, protecting motor bearings from moisture damage.
- OEM Reliability: Genuine Grundfos 98434904 parts ensure exact fitment and pressure ratings without the tolerances issues of aftermarket alternatives.
What is the maximum temperature rating for this seal kit?
The EPDM components in the Grundfos 98434904 are typically rated for liquid temperatures ranging from -22°F to 248°F (-30°C to 120°C), suitable for most HVAC applications.
Can I use this seal in oil-based systems?
No. The EPDM elastomers in this BQQE kit are designed for water and water/glycol mixtures. For oil-based applications, a Viton (FKM) seal variant is required to prevent material degradation.
Does this kit include the shaft sleeve?
This is a shaft seal kit containing the mechanical seal and O-rings. If the shaft or sleeve is scored or pitted, it must be replaced or resurfaced separately to ensure the new seal performs correctly.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Grundfos 98434904 Shaft Seal Kit
Identify and resolve pump leakage with the Grundfos 98434904 Shaft Seal Kit, a critical service component designed for high-performance end-suction and vertical in-line pumps. This OEM Grundfos pump repair kit features the BQQE mechanical seal configuration, utilizing silicon carbide (SiC/SiC) seal faces and EPDM elastomers for superior chemical resistance and thermal stability. Engineered for 28 mm shafts, it is the standard replacement for Grundfos TP, NB, and NK series pumps, ensuring a zero-leakage interface between the rotating shaft and the pump housing. As a technical HVACR specialist, you know that maintaining the integrity of the secondary seals is paramount; this kit includes the stationary seat, rotating head, and required O-rings to restore factory-spec pressure retention. High-durability construction minimizes frictional torque and prevents premature failure in hydronic heating, cooling, and industrial water circulation systems. Ensure pump shaft seal compatibility by verifying your model number before field installation to maintain optimal system efficiency and prevent costly downtime.
Key Benefits for Contractors:- System Compatibility: Specifically engineered for Grundfos TP, NB, and NK series centrifugal pumps with 28 mm diameter shafts.
- BQQE Seal Construction: Features EPDM rubber and silicon carbide faces, providing excellent resistance to glycol-based fluids and treated water.
- Leak Prevention: High-precision mechanical seal replacement stops fluid migration along the shaft, protecting motor bearings from moisture damage.
- OEM Reliability: Genuine Grundfos 98434904 parts ensure exact fitment and pressure ratings without the tolerances issues of aftermarket alternatives.
What is the maximum temperature rating for this seal kit?
The EPDM components in the Grundfos 98434904 are typically rated for liquid temperatures ranging from -22°F to 248°F (-30°C to 120°C), suitable for most HVAC applications.
Can I use this seal in oil-based systems?
No. The EPDM elastomers in this BQQE kit are designed for water and water/glycol mixtures. For oil-based applications, a Viton (FKM) seal variant is required to prevent material degradation.
Does this kit include the shaft sleeve?
This is a shaft seal kit containing the mechanical seal and O-rings. If the shaft or sleeve is scored or pitted, it must be replaced or resurfaced separately to ensure the new seal performs correctly.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
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Description
Identify and resolve pump leakage with the Grundfos 98434904 Shaft Seal Kit, a critical service component designed for high-performance end-suction and vertical in-line pumps. This OEM Grundfos pump repair kit features the BQQE mechanical seal configuration, utilizing silicon carbide (SiC/SiC) seal faces and EPDM elastomers for superior chemical resistance and thermal stability. Engineered for 28 mm shafts, it is the standard replacement for Grundfos TP, NB, and NK series pumps, ensuring a zero-leakage interface between the rotating shaft and the pump housing. As a technical HVACR specialist, you know that maintaining the integrity of the secondary seals is paramount; this kit includes the stationary seat, rotating head, and required O-rings to restore factory-spec pressure retention. High-durability construction minimizes frictional torque and prevents premature failure in hydronic heating, cooling, and industrial water circulation systems. Ensure pump shaft seal compatibility by verifying your model number before field installation to maintain optimal system efficiency and prevent costly downtime.
Key Benefits for Contractors:- System Compatibility: Specifically engineered for Grundfos TP, NB, and NK series centrifugal pumps with 28 mm diameter shafts.
- BQQE Seal Construction: Features EPDM rubber and silicon carbide faces, providing excellent resistance to glycol-based fluids and treated water.
- Leak Prevention: High-precision mechanical seal replacement stops fluid migration along the shaft, protecting motor bearings from moisture damage.
- OEM Reliability: Genuine Grundfos 98434904 parts ensure exact fitment and pressure ratings without the tolerances issues of aftermarket alternatives.
What is the maximum temperature rating for this seal kit?
The EPDM components in the Grundfos 98434904 are typically rated for liquid temperatures ranging from -22°F to 248°F (-30°C to 120°C), suitable for most HVAC applications.
Can I use this seal in oil-based systems?
No. The EPDM elastomers in this BQQE kit are designed for water and water/glycol mixtures. For oil-based applications, a Viton (FKM) seal variant is required to prevent material degradation.
Does this kit include the shaft sleeve?
This is a shaft seal kit containing the mechanical seal and O-rings. If the shaft or sleeve is scored or pitted, it must be replaced or resurfaced separately to ensure the new seal performs correctly.
This item is not eligible for free shipping.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
