Stainless Steel Head Single Spring Seal Replacement Vulcan 8
Industrial Performance:
Engineered for industrial centrifugal pump seals in chemical and oil refinery applications, this corrosion-resistant stainless-steel mechanical seal delivers:
• Reliable acid/alkali transfer sealing for chemical processes
• Robust boiler feed water pump sealing under harsh operation conditions
• Durable abrasive slurry pump mechanical sealing
• Leak-proof hot oil pump operation in refinery services
Product Description
• Vibration Damping: VITON®/EPDM Chemical-resistant elastomers absorb axial movement in mixer shaft sealing
• Precision Contact: Conical spring mechanism consistently maintains rotary seal face pressure
• Cartridge Installation: Quick in-pump seal replacement without dismantling
This medium to heavy-duty single spring seal is ideal for centrifugal pump seal replacement in demanding applications: refinery process pumps, chemical processing systems, and abrasive slurry transfer equipment.
Equivalent Products
• Roten®: L4B
• Vulcan®: Type 8
• EagleBurgmann®: M32/M377
• Sterling®: SM32
• Flowserve®: Type 38
• Lidering®: 109/LS19/PFL4
• U.S. Seal®: VGME-2/VGM-G4
We provide mechanical seal solutions with identical dimensions, ISO9001 quality, and 30% cost savings.
Material and Operating Range
Material:
• Rotary ring: Carbon/SiC/TC
• Stationary ring: 99%Ceramic/SiC/TC
• Elastomer elements (O-ring): VITON/NBR/EPDM
• Spring and Metal Parts: SUS304/SUS316
* Customization for this part is available, please consult our engineering team for changing parameters and materials.
Operating Range:
• Temperature: -30 ℃～200℃
• Pressure: ≤1.2MPa (Medium pressure)
• Speed: ≤20m/s (General Speed)
• Performance: Moderately corrosive
Compatible Mediums:
• Crude and refined oils
• Boiler feed water
• Acids/alkalis
• Alkali
• Salt brines and crystallizing fluids
• Organic solvent mixtures
Installation Dimensions
| Seal Size d | D1 | D2 | D3 | L1 | L2 | L3 |
| 10 | 21.0 | 17.0 | 19.0 | 15.5 | 6.6 | 7.5 |
| 12 | 23.0 | 19.0 | 21.0 | 15.5 | 5.6 | 7.5 |
| 14 | 25.0 | 21.0 | 23.0 | 15.5 | 5.6 | 7.5 |
| 16 | 27.0 | 23.0 | 26.0 | 17.5 | 6.6 | 7.5 |
| 18 | 33.0 | 27.0 | 29.0 | 18.5 | 7.5 | 8.5 |
| 20 | 35.0 | 29.0 | 31.0 | 20.0 | 7.5 | 8.5 |
| 22 | 37.0 | 31.0 | 33.0 | 21.5 | 7.5 | 8.5 |
| 25 | 40.0 | 34.0 | 36.0 | 24.5 | 7.5 | 8.5 |
| 28 | 43.0 | 37.0 | 40.0 | 24.5 | 7.5 | 8.5 |
| 30 | 45.0 | 39.0 | 43.0 | 24.5 | 7.5 | 8.5 |
| 32 | 48.0 | 42.0 | 46.0 | 28.0 | 7.5 | 8.5 |
| 35 | 50.0 | 44.0 | 49.0 | 28.0 | 7.5 | 8.5 |
| 38 | 56.0 | 49.0 | 53.0 | 31.0 | 9.0 | 10.0 |
| 40 | 58.0 | 51.0 | 56.0 | 34.0 | 9.0 | 10.0 |
| 43 | 61.0 | 54.0 | 59.0 | 35.0 | 9.0 | 10.0 |
| 45 | 63.0 | 56.0 | 61.0 | 36.5 | 9.0 | 10.0 |
| 48 | 66.0 | 59.0 | 64.0 | 42.0 | 9.0 | 10.0 |
| 50 | 70.0 | 62.0 | 66.0 | 43.0 | 9.5 | 10.5 |
| 55 | 75.0 | 67.0 | 71.0 | 47.0 | 11.0 | 12.0 |
| 58 | 78.0 | 70.0 | 76.0 | 50.0 | 11.0 | 12.0 |
| 60 | 80.0 | 72.0 | 78.0 | 51.0 | 11.0 | 12.0 |
| 65 | 85.0 | 77.0 | 84.0 | 52.0 | 11.0 | 12.0 |
| 68 | 90.0 | 81.0 | 88.0 | 53.0 | 11.3 | 12.5 |
| 70 | 92.0 | 83.0 | 90.0 | 54.0 | 11.3 | 12.5 |
| 75 | 97.0 | 88.0 | 98.0 | 55.0 | 11.3 | 13.0 |
| 80 | 105.0 | 95.0 | 100.0 | 58.0 | 12.0 | 15.0 |
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