Bellow Seals Replace John Crane Type 1 Multi-purpose Water Pump
Industrial Sealing Solutions:
This multi-purpose elastomer bellow seal delivers reliable performance across diverse media - from process water sealing to steam applications and chemical-resistant sealing.
• Pulp & paper stock agitator seals
• Petrochemical compressor shaft seals
• Food-grade elastomer bellows seals
• Wastewater treatment bellow seals
• Power generation turbine seals
• Chemical pump seals
Engineered for longtime mechanical seal service in critical industries
Product Description
• Positive drive system: Rubber diaphragm bellows clamp shafts securely
• Constant face pressure: Parallel springs maintain contact force
• Stress-free operation: Drive band and notches prevent excessive stress
This component is available in metric and inch sizes and follows the standard EN 12756, compatible with the A-C Pump 2-1/2X2 SLH, A-C Pump 3X2 MM-2, A-C Pump 3X2-1/2 SLH and others equipment.
Its stationary GWT11 suits common USA market imperial extended-length seal chambers.
Equivalent Products
• Roten®: 51A
• Vulcan®: Type A5
• JohnCrane®: Type 1 (USA)
• EagleBurgmann®: Type MG901
• Flowserve Pac-Seal ®: Type 51
• Flexaseal®: Type 1
• Lidering®: Type LRB00U
• U.S. Seal®: Type E
*We provide certified ISO9001 mechanical seal solutions with identical dimensions at competitive prices.
Material and Operating Range
Material:
• Rotary ring: Carbon/SiC/TC
• Stationary ring: 99% Ceramic /SiC/TC
• O-ring: VITON/NBR/EPDM
• Spring and Metal Parts: SUS304/SUS316
* Customization for this part is supported, please contact us for changing parameters and materials.
Operating Range:
• Temperature: -40 ℃～180℃
• Pressure: ≤2.5 MPa
• Speed: ≤18 m/s
• Performance: Low-wear operation
Compatible Mediums:
• Hydraulic oils
• Process water & sewage
• Paper pulp slurries
• Food-grade fluids
• Organic/inorganic chemicals
Installation Dimensions
| Inches Size | Metric Size | D1 | D2 | D3 | L1 | L2 |
| 0.500 | 12 | 25.40 | 19.05 | 23.80 | 30.16 | 7.93 |
| 14 | 31.75 | 23.80 | 27.76 | 33.32 | 10.28 | |
| 0.625 | 16 | 31.75 | 23.80 | 27.76 | 33.32 | 10.28 |
| 0.750 | 18 | 34.93 | 26.98 | 30.94 | 33.32 | 10.28 |
| 20 | 38.10 | 30.15 | 34.11 | 34.93 | 10.28 | |
| 0.875 | 22 | 38.10 | 30.15 | 34.11 | 34.93 | 10.28 |
| 24 | 41.28 | 33.32 | 38.10 | 39.67 | 11.10 | |
| 1.000 | 25 | 41.28 | 33.32 | 38.10 | 39.67 | 11.10 |
| 1.125 | 28 | 44.44 | 36.50 | 41.28 | 41.28 | 11.10 |
| 30 | 47.63 | 37.90 | 46.02 | 41.28 | 11.10 | |
| 1.250 | 32 | 47.63 | 37.90 | 46.02 | 41.28 | 11.10 |
| 33 | 50.80 | 42.84 | 48.68 | 42.85 | 11.00 | |
| 1.375 | 35 | 50.80 | 42.84 | 48.68 | 42.85 | 11.00 |
| 1.500 | 38 | 53.98 | 46.05 | 51.85 | 42.85 | 11.00 |
| 1.625 | 40 | 60.38 | 50.80 | 58.10 | 50.80 | 12.70 |
| 43 | 63.50 | 53.97 | 61.27 | 50.80 | 12.70 | |
| 1.750 | 45 | 63.50 | 53.97 | 61.27 | 50.80 | 12.70 |
| 1.875 | 48 | 66.68 | 57.15 | 64.44 | 53.98 | 12.70 |
| 48 | 69.85 | 60.32 | 67.21 | 53.98 | 12.70 | |
| 2.000 | 50 | 69.85 | 60.32 | 67.21 | 53.98 | 12.70 |
| 2.125 | 53 | 76.20 | 60.32 | 72.02 | 60.33 | 14.28 |
| 2.250 | 55 | 79.38 | 61.90 | 75.30 | 60.33 | 14.28 |
| 2.375 | 60 | 82.55 | 67.39 | 78.30 | 63.50 | 14.28 |
| 2.500 | 63 | 85.73 | 68.25 | 81.54 | 63.50 | 14.28 |
| 2.625 | 65 | 85.73 | 71.24 | 86.22 | 69.85 | 15.90 |
| 2.750 | 70 | 88.90 | 74.60 | 89.40 | 73.03 | 15.90 |
| 2.875 | 73 | 95.25 | 77.77 | 92.57 | 73.03 | 15.90 |
| 3.000 | 75 | 98.43 | 80.95 | 95.75 | 73.03 | 15.90 |
| 3.125 | - | 101.60 | - | 101.60 | 79.38 | 19.84 |
| 3.250 | - | 104.78 | - | 104.80 | 79.38 | 19.84 |
| 3.375 | - | 107.95 | - | 107.90 | 79.38 | 19.84 |
| 3.500 | - | 111.13 | - | 111.00 | 79.38 | 19.84 |
| 3.625 | - | 114.30 | - | 114.30 | 82.55 | 19.84 |
| 3.750 | - | 117.48 | - | 117.48 | 82.55 | 19.84 |
| 3.875 | - | 120.65 | - | 120.65 | 85.73 | 19.84 |
| 4.000 | - | 123.83 | - | 123.80 | 85.73 | 19.84 |
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