This Alfa Laval mechanical seal 45mm is a precision-engineered replacement mechanical seal for Alfa Laval pump 45mm shaft applications, designed as a direct dimensional interchange for LKH, MR, and ALC series pumps. The wave spring mechanical seal 45mm variant provides uniform face loading without clogging risks, while the stainless steel drive ring ensures positive torque transmission for larger impeller loads. Available as a standalone Alfa Laval LKH pump mechanical seal 45mm or as a complete Alfa Laval LKH 45mm seal kit with gaskets and O-rings, this Alfa Laval pump mechanical seal supports hygienic CIP/SIP cleaning cycles and is offered with Carbon/SiC/Tungsten Carbide faces for water, CIP, beer, dairy, and light chemical services.
Key Features
• Specific Size Replacement: Precision manufactured to fit the 45mm shaft variant of Alfa Laval LKH, MR, and ALC series pumps. This Alfa Laval LKH pump mechanical seal 45mm drops in without modification.
• Standardized Dimensions: Guaranteed to match OEM installation length and drive pin location for 45mm shafts—eliminating pump modification when installing this mechanical seal 45mm.
• Heavy-Duty Option:Available with upgraded Silicon Carbide faces to handle more abrasive fluids than standard carbon. Specify when ordering your Alfa Laval LKH 45mm seal kit for extended life in harsh media.
• Drive Ring Stability: The robust stainless steel drive ring ensures positive torque transmission on the Alfa Laval mechanical seal 45mm, critical for larger impeller loads in mid-size LKH pumps.
• Spring Optimization: The wave spring design provides uniform face loading on this replacement mechanical seal for Alfa Laval pump 45mm without the clogging risk found in coil spring designs—ideal for CIP return and viscous fluids.
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 Alfa Laval mechanical seal 45mm 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 Alfa Laval mechanical seal 45mm on the shelf. They are the workhorse for our larger transfer pumps.
—Maintenance Supervisor, Brewery
FAQs
Q: Which Alfa Laval pump models use the 45mm Alfa Laval pump mechanical seal?
A: The Alfa Laval mechanical seal 45mm 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.
Q: Is this a direct replacement for the OEM Alfa Laval 45mm seal?
A: Yes. Our replacement mechanical seal for Alfa Laval pump 45mm matches OEM envelope dimensions, drive pin location, and installation length. It is a true drop-in replacement.
Q: Do you sell this as a complete seal kit for Alfa Laval LKH 45mm?
A: Yes. We offer the Alfa Laval LKH 45mm seal kit which includes the mechanical seal, shaft O-ring, housing gasket, and installation lubricant—everything needed for a single service event.
Q: What face materials do you recommend for a brewery LKH pump?
A: For beer filtration and CIP return, Carbon vs Ceramic is standard. For abrasive hop-forward or yeast-heavy streams, we recommend SiC vs SiC. Specify when ordering your Alfa Laval LKH pump mechanical seal 45mm.
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