The Burgmann HJ92N is a robust, single‑face, balanced Burgmann mechanical seal designed specifically for vertical turbine pump applications. It features a wave‑spring, O‑ring pusher design that is independent of rotation direction and fully isolated from the pumped fluid. Engineered to handle high‑pressure spikes, abrasive solids, and viscous media, the Burgmann HJ92N delivers reliable, leak‑free performance in demanding industrial environments.
Key Features
Spring‑Protected Design – The wave spring is encapsulated and isolated from the product, preventing clogging and ensuring smooth operation even in solids‑laden fluids.
Balanced & Pressure‑Resistant – Hydraulically balanced to withstand pressure surges common in vertical turbine pump mechanical seal systems, up to 25 bar (363 PSI).
High‑Viscosity Capability – Burgmann hj92n mechanical seals are ideal for thick, sticky media such as sugar syrup, sludge, and oils where conventional coil springs may torque out.
Direction‑Independent – Operates reliably regardless of shaft rotation, simplifying installation and maintenance.
Durable Materials – Available with carbon, SiC, or TC seal faces and stainless‑steel (SS304/SS316) metal parts for corrosion resistance and long service life.
We offer tailored solutions to match your exact operating conditions:
Material Combinations – Choose from carbon, SiC, or TC for seal faces; NBR, EPDM, Viton, or PTFE for O‑rings.
Shaft Sizes – Standard range 18–100 mm (0.625″–4″); custom sizes available on request.
Spring Options – Wave‑spring or multi‑spring configurations to suit space and performance needs.
Special Variants – Sterile‑grade, vacuum‑rated, or high‑temperature versions can be produced.
The Burgmann HJ92N mechanical seal excels in a wide range of industries and fluids:
Vertical Turbine Pumps – Primary application for vertical turbine pump mechanical seal replacements in water supply, irrigation, and booster systems.
Sugar & Food Processing – Handles high‑viscosity sugar juice, syrups, and dairy products.
Wastewater & Sludge – Reliable sealing in raw sludge, sewage, and abrasive slurry pumps.
Chemical & Pulp/Paper – Resists corrosive and fibrous media in process pumps.
Mining & Power Plants – Durable performance in lube‑oil, cooling‑water, and other utility pumps.
Expertise in Burgmann Seals – Our engineers are specialists in Burgmann mechanical seal technology, ensuring precise replacements and custom designs.
Quality Assurance – ISO‑certified manufacturing with rigorous testing for dimensional accuracy and performance.
Fast Delivery – Large stock of standard Burgmann HJ92N sizes and efficient production for custom orders.
Competitive Pricing – Factory‑direct pricing without compromising on material quality or workmanship.
Technical Support – Pre‑sales consultation, installation guidance, and after‑sales service from our experienced team.
Technical Specs | Materials | ||
Mediums | Water, oil and weakly-corrosive mediums | Stationary Ring | Ceramic/Sic/TC |
Pressure | ≤1.0MPa | Rotary Ring | Carbon/Sic/TC |
Temperature | -20℃ to 120℃ | Secondary Seal | NBR/EPDM/Viton |
Speed | ≤15m/s | Spring and Metal Part | Stainless Steel |
Product Specifications
| Metric Shaft Size D1 | Size Code | D3 | D7 | L1 | L4 |
| 12 | 0120 | 21.70 | 23.00 | 24.10 | 8.60 |
| 14 | 0140 | 24.50 | 25.00 | 26.60 | 8.60 |
| 16 | 0160 | 26.65 | 27.00 | 26.60 | 8.60 |
| 18 | 0180 | 30.35 | 33.00 | 27.70 | 10.00 |
| 20 | 0200 | 33.40 | 35.00 | 27.70 | 10.00 |
| 22 | 0220 | 33.55 | 37.00 | 27.70 | 10.00 |
| 24 | 0240 | 38.30 | 39.00 | 30.20 | 10.00 |
| 25 | 0250 | 39.30 | 40.00 | 30.20 | 10.00 |
| 28 | 0280 | 42.20 | 43.00 | 32.70 | 10.00 |
| 30 | 0300 | 43.95 | 45.00 | 32.70 | 10.00 |
| 32 | 0320 | 45.75 | 48.00 | 32.70 | 10.00 |
| 33 | 0330 | 45.85 | 48.00 | 32.70 | 10.00 |
| 35 | 0350 | 19.10 | 50.00 | 32.70 | 10.00 |
| 38 | 0380 | 52.60 | 56.00 | 34.20 | 11.00 |
| 40 | 0400 | 55.70 | 58.00 | 34.20 | 11.00 |
| 43 | 0430 | 58.80 | 61.00 | 34.20 | 11.00 |
| 45 | 0450 | 61.00 | 63.00 | 34.20 | 11.00 |
| 48 | 0480 | 64.20 | 66.00 | 34.20 | 11.00 |
| 50 | 0500 | 66.60 | 70.00 | 34.70 | 13.00 |
| 55 | 0550 | 71.65 | 75.00 | 34.70 | 13.00 |
| 58 | 0580 | 78.40 | 78.00 | 39.70 | 13.00 |
| 60 | 0600 | 78.40 | 80.00 | 39.70 | 13.00 |
| 63 | 0630 | 81.50 | 83.00 | 39.70 | 13.00 |
| 65 | 0650 | 84.30 | 85.00 | 39.70 | 13.00 |
| 68 | 0680 | 89.65 | 90.00 | 37.40 | 15.30 |
| 70 | 0700 | 89.65 | 92.00 | 44.90 | 15.30 |
| 75 | 0750 | 96.80 | 97.00 | 44.90 | 15.30 |
Workshop
This workshop is equipped with professional processing equipment and integrated with standardized material warehousing management, enabling a one-stop production process from precision machining to finished product delivery. It ensures part machining accuracy and production efficiency, meeting various high-specification manufacturing requirements.
Product Research, Development and Testing
Our Product R&D and Testing focuses on optimizing seal performance through advanced simulation and material analysis. All seals undergo rigorous trials, including thermal cycling and pressure tests, to ensure durability, minimal leakage, and long service life in demanding industrial environments.
Industry Solutions
Case Study
Paint Circulation: A paint line used gear pumps with HJ92N seals. Standard seals clogged with dried paint. We supplied HJ92N replacements with wave springs. The wave spring didn't clog, and the seal reliability improved by 200%.
Testimonials
The Burgmann HJ92N is a tank. We use it on all our viscous product pumps. The wave spring design is far superior to single coil springs.
—Maintenance Engineer, Paint Factory
FAQs
Q: What makes the wave spring better?
A: A wave spring provides high closing force in a small space and has no coils to clog with viscous product. It applies pressure evenly around the seal face.
Q: Is the HJ92N a direct replacement for the original Burgmann seal?
A: Yes, our Burgmann HJ92N is dimensionally and functionally identical to the OEM seal, ensuring drop‑in compatibility with your existing vertical turbine pump mechanical seal assembly.
Q: What temperature range does the HJ92N support?
A: Standard version operates from -50 °C to +220 °C (-58 °F to +430 °F). High‑temperature variants are available upon request.
Our company is specialized in the production of sealing materials, mechanical seals , cartridge seals.
E-mail: gechacha@aliyun.com
Mobile: +86-18758835650
WhatsApp: +86-18758835650
Add: No8-2, Jinsha road Yuelin Street, Fenghua District, Ningbo, Zhejiang
