Rapid Allweiler NT & NB Centrifugal Pumps 50MM SHAFT
R800.40 R1,587.00Price range: R800.40 through R1,587.00
Restore zero-leak performance to your industrial fluid networks with our premium engineering-grade replacement mechanical seals, built explicitly for Rapid Allweiler NT, NB, and NTT Series centrifugal pumps.
Manufactured to strict international design standards, these heavy-duty component seals deliver absolute boundary containment. They protect your electric motors and pump bearing frames from costly fluid contamination, heat degradation, and catastrophic failure.
- NT & NB Series: Fully compliant with EN 12756 (DIN 24960) dimensional envelopes.
- NTT Series: High-performance, self-cooling configurations for thermal oil apps up to 350°C.
- Premium Materials: Available in Carbon, Silicon Carbide (SiC), Ceramic, Viton (FKM), and EPDM.
- Rotational Tuning: Right-hand wrapped single-coil springs for standard clockwise (CW) setups.
Don't let a failing shaft seal compromise your plant's uptime or create a hazardous workspace. Our premium aftermarket mechanical seals are engineered to serve as direct, drop-in replacements for original Rapid Allweiler components. By matching precise factory axial lengths, seating tolerances, and spring tensions, these kits eliminate the common causes of premature failure, such as face scoring, spring jamming, and thermal cracking.
Engineered to International Standards
Our NT and NB series seals strictly follow the EN 12756 (KU standard dimensions) format. This universal compliance means engineers, maintenance technicians, and procurement teams can confidently purchase these units as guaranteed-fit replacements, eliminating complex shaft modifications or manual housing adjustments during routine servicing.
NT & NB Series (Water, Utilities & Mild Chemicals)
Designed for standard EN733 hydraulics, these single-coil, pusher-type mechanical seals are highly resilient against clogging. The heavy-gauge single spring ensures uniform face pressure even during pressure spikes.
- NT Series (Long-Coupled Frame): Fits comfortably within the large backplate stuffing box chamber for easy back pull-out bench maintenance.
- NB Series (Monobloc Close-Coupled): Compact design engineered to sit flawlessly on motor shaft extensions, safeguarding electric motor windings from moisture ingress.
Technical Specifications & Operating Limits
- Max Operating Pressure (NT & NB Series): Up to 16 Bar (232 PSI)
- Max Operating Pressure (NTT Series): Up to 10 Bar (145 PSI)
- Fluid Temperature Range (NT & NB Series): -20°C to +140°C
- Fluid Temperature Range (NTT Series): Ambient up to +350°C
- Standard Spring Type: Single Conical Coil (Right-Hand/CW)
- Velocity Rating: Up to 15 m/s
Additional information
| Weight | 0.25 kg |
|---|---|
| Dimensions | 11 × 11 × 10 cm |
| MATERIAL | SILICON SILICON VITON, CARBON CERAMIC VITON, CARBON SILICON VITON |
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