QT XE Metal 35mm Cartridge Mechanical Seal for Flygt Pump
The QT XE Metal 35mm cartridge mechanical seal is a replacement seal option for Flygt submersible pump repair and maintenance. It is designed for service conditions where a stronger metal cartridge structure and wear-resistant seal face materials are required.
Description:
Flygt submersible pumps are commonly used in wastewater treatment, sewage transfer, drainage systems, industrial water handling, and slurry service. In these applications, the mechanical seal protects the motor chamber and helps prevent leakage between the pumped liquid, oil chamber, and motor side of the pump. When the original seal is worn, cracked, corroded, or installed with the wrong material, leakage can quickly lead to pump failure.
Operating Limits:
- Item | Specification |
- Product type | QT XE Metal cartridge mechanical seal |
- Application | Flygt submersible pump seal replacement |
- Standard size | 35 mm |
- Temperature | -15 C to 120 C, depending on elastomer material |
- Speed | Up to 15 m/s |
- Pressure | Up to 12 bar |
- Main service | Wastewater, sewage, drainage, slurry, and pump repair service |
Materials:
- Part | Available materials |
- Seal face | Tungsten carbide, silicon carbide, carbon graphite by confirmation |
- Secondary seals | FKM, Viton, NBR, EPDM |
- Springs | Stainless Steel 316, Stainless Steel 304 |
- Metal parts | Stainless Steel 316, Stainless Steel 304 |
Applications:
This QT XE Metal 35mm Flygt pump seal can be used for:
– Flygt submersible pump repair
– Wastewater pump maintenance
– Sewage treatment plant pump service
– Drainage and storm-water pump repair
– Industrial water-handling pump service
– Pump repair workshops replacing old cartridge seal assemblies
– Maintenance projects requiring confirmation by old sample or photo
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Why choose this QT XE Metal seal
Stronger structure for repair service
The cartridge-style assembly is easier to handle during pump repair than separate loose sealing parts. It helps maintenance teams install the replacement seal with better consistency.
Material options for wastewater applications
Wastewater and sewage pumps may face grit, sand, fibers, and suspended solids. Tungsten carbide and silicon carbide options are available when stronger wear resistance is required.
Confirmation before supply
Flygt pump seal replacement should be confirmed by pump model, shaft size, old seal photos, and service condition. This reduces the risk of selecting the wrong structure or material.
Support for distributors and repair workshops
Fluid Tech Service can supply replacement seals for pump repair companies and distributors who need stable supply, technical checking, and clear quotation information.
Production Process
Production Line
Equipment
FAQ
Is this QT XE Metal seal suitable for all Flygt pumps?
No. Flygt pumps use different seal structures and sizes. Please confirm the pump model, shaft size, and old seal photos before ordering.
What is the standard size of this seal?
This page focuses on the 35 mm QT XE Metal cartridge mechanical seal. Other sizes or structures should be checked separately.
Which seal face material is recommended for wastewater service?
Tungsten carbide is commonly selected for wastewater, sewage, and abrasive water service. Silicon carbide may be used when corrosion resistance or a special specification is required.
Can the elastomer material be changed?
Yes. FKM, NBR, and EPDM can be selected according to temperature and chemical exposure. The material should be confirmed before production.
What should I send before quotation?
Please send the pump model, old seal photos, shaft size, working medium, temperature, and quantity. If the old seal has been replaced before, photos and measurements are especially important.