• Drive Ring Stability: The 45mm seal features a robust stainless steel drive ring that ensures positive torque transmission, critical for larger impeller loads.
• Spring Optimization: The wave spring design provides uniform face loading without the risk of clogging found in some coil spring designs.
Key Features
• Specific Size Replacement: Precision manufactured to fit the 45mm shaft variant of Alfa Laval LKH, MR, and ALC series pumps.
• Standardized Dimensions: Guaranteed to match the OEM's installation length and drive pin location for 45mm shafts, eliminating the need for pump modification.
• Heavy-Duty Option: Available with upgraded Silicon Carbide faces to handle more abrasive fluids than the standard carbon option.
Technical Specs | Materials | ||
Mediums | Water, oil and weakly-corrosive mediums | Stationary Ring | Ceramic/Sic/TC |
Pressure | ≤1.4MPa | 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 |
| 16 | 0160 | 34.00 | 30.00 | 25.20 | 8.00 |
| 18 | 0180 | 36.80 | 32.00 | 25.20 | 8.00 |
| 20 | 0200 | 38.80 | 34.00 | 25.20 | 8.00 |
| 22 | 0220 | 41.50 | 36.00 | 25.20 | 8.00 |
| 25 | 0250 | 44.80 | 39.00 | 26.20 | 8.00 |
| 28 | 0280 | 48.50 | 43.00 | 26.20 | 8.00 |
| 30 | 0300 | 52.00 | 48.00 | 26.20 | 8.00 |
| 35 | 0350 | 57.00 | 53.00 | 30.20 | 10.00 |
| 40 | 0400 | 67.00 | 58.00 | 34.20 | 10.00 |
| 45 | 0450 | 73.00 | 63.00 | 36.20 | 10.00 |
| 50 | 0500 | 79.00 | 68.00 | 41.20 | 10.00 |
| 55 | 0550 | 84.00 | 73.00 | 41.20 | 12.00 |
| 60 | 0600 | 90.00 | 79.00 | 41.20 | 12.00 |
| 65 | 0650 | 98.50 | 86.00 | 49.20 | 12.00 |
| 70 | 0700 | 103.50 | 91.00 | 52.20 | 12.00 |
| 75 | 0750 | 110.50 | 96.00 | 52.20 | 12.00 |
| 80 | 0800 | 120.00 | 105.00 | 56.20 | 14.00 |
| 85 | 0850 | 125.00 | 110.00 | 56.20 | 14.00 |
| 90 | 0900 | 132.00 | 115.00 | 56.20 | 14.00 |
| 95 | 0950 | 137.00 | 120.00 | 56.20 | 14.00 |
| 100 | 1000 | 144.00 | 125.00 | 62.20 | 14.00 |
| 110 | 1100 | 157.00 | 135.00 | 62.20 | 16.00 |
| 120 | 1200 | 169.50 | 145.00 | 72.20 | 16.00 |
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
Brewery Filtration: A brewery's 45mm shaft beer filtration pump was leaking. The OEM part had a 6-week lead time. We supplied our 45mm replacement from stock. It fit perfectly and got the filtration line back up and running in 24 hours.
Testimonials
We keep a couple of these 45mm seals on the shelf. They are the workhorse for our larger transfer pumps.
—Maintenance Supervisor, Brewery
FAQs about Metal Bellows Seals for High Temperature Pumps
Q: Which pump models use the 45mm seal?
A: The 45mm seal is common in mid-to-large size LKH pumps (e.g., LKH-40, LKH-50). However, always check your pump's manual or measure the shaft to be sure, as pump sizes can overlap.
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
