The HRN mechanical seal is a robust, double-ended sealing solution engineered by Burgmann for demanding water pump applications. Designed to handle high-pressure and aggressive media, it features corrosion-resistant materials like silicon carbide sealing faces and flexible elastomers (EPDM/FKM), ensuring reliable leak-proof performance in industrial water systems, chemical processing, and wastewater treatment. With a compact cartridge design for easy installation and compliance with ISO 9001 standards, the HRN delivers durability and low maintenance for critical fluid-handling operations.
Q1: What makes the HRN seal ideal for high-pressure water pumps?
A1: The HRN’s double-ended design and silicon carbide sealing faces withstand pressures up to 25 bar (2.5 MPa), while its corrosion-resistant elastomers (like FKM/EPDM) prevent leakage in aggressive media like saline water or chemicals, ensuring reliability in demanding industrial pumps.
Q2: How does the HRN handle abrasive fluids in wastewater treatment?
A2: Engineered with hardened SiC/SiC face pairs and a rigid cartridge structure, it resists particle erosion and maintains seal integrity even with suspended solids—critical for sewage pumps and slurry handling.
Q3: Why choose HRN over standard mechanical seals for critical applications?
A3: Burgmann’s HRN integrates predictive-leakage control through its dual-seal barrier system, coupled with ISO 9001-certified manufacturing. This minimizes unplanned downtime in essential systems like cooling loops or chemical transfer pumps.
Features:
Burgmann Water Pump Seal Model HRN Balance Mechanical Shaft Seal.
- Single seal
- Balanced
- Independent of direction of rotation
- To EN12756 (DIN24960)
- Burgmann HRN series is designed with a new stationary seal structure. It adopts multi-spring structure and is suitable for waste water, corrosive medium and other medium containing solids.
- This seal is widely used in waste water treatment and chemical factories.
Operating Limited:
| Shaft diameter |
18~100mm |
| Pressure |
up to 2.5Mpa |
| Temperature |
-20~220°C |
| Slidingvelocity |
20m/s |
Material:
| Rotary Ring |
Car / SIC/TC/Cer |
| O-Ring |
, EPDM, NBR, AFLAS, Kalrez,PTFE |
| Spring and Metal Parts |
SUS304, SUS316, Titan, 904L |
| Stationary Ring |
Car / SIC /TC/Cer |
Advantages:
• Spring unit averted from the product so no sticking and clogging of the springs
• Safe operation (no fractures) because of seal face locking by square pin
• Suitable for pressure reversals
• Operation in vacuum without additional seat locking possible
• No damage of the shaft by a dynamically loaded O-Ring
• Small installation sizes
• Best suitable for conversions, no adaptations of the pump
• Insensitive to solid containing and abrasive media
• Advantages of a balanced seal even with plain shafts
• Insensitive to shaft movements because of the stationary design
Application:
• Water and waste water technology
• Chemical industry
• Refining technology
• Dirty, abrasive and solid containing media
• Fugitive hydrocarbons (no API seal!)
• Sticky and stringy media
• Chemical standard pumps
• Sewage pumps
Shipping & Payment Terms:
Port of Loading: Shanghai
Shipping Method: DHL,UPS,FEDEX,TNT, etc
Payment Terms: T/T, Western Union, money gram
Our services:
◆ OEM/ODM orders are available for our factory
◆ Accept customized mechanical seals according to your drawing or requirements
◆ Small quantity is accepted
◆ Provides excellent quality with competitive price
