John Crane Type 4620 Double Cartridge Seal Pressure Less 1.5Mpa
Double Cartridge Mechanical Seal John Crane Type 4620 And 4620P Double Cartridge Seal For Chemical Pumps
Operational Conditions:
- Temperature:-30℃-205℃
- Speed:≦20M/S
- Pressure:≦1.5Mpa
- Size:24mm-70mm/1”-2.750”
Materials
- Rotary Face:CAR/SIC/TC
- Stat Ring:SIC/TC
- The type seal can replace with Johncrane type 4620 cartridge seal.
Performance Capabilities
| Performance Capabilities | Materical combination |
|
Temperature: -30°C to 205°C, dependent on o-ring material
|
Face: Carbon, SiC, TC |
| Pressure: Up to≦1.5Mpa | Seat: Ceramic, SiC, TC |
| Speed: Up to 20 m/s | O-ring: NBR, EPDM,FEP etc |
| End play/axial float allowance: ±1mm | Spring: SS304, SS316, hastelloy |
| Sizes:1.000” to 4.000” (24mm - 100mm) |
Metal parts: SS304, SS316
|
- Dual seal arrangement — incorporates an elastomer O-ring as the dynamic secondary sealing member
- Inboard primary and mating ring reverse balance design allows for ID or OD pressurization, permitting the dual seal to operate as an unpressurized tandem or pressurized double seal
- Increased cooling flow and face lubrication, greatly extending seal life
- Cartridge design with factory-preset and pressure-tested assembly
- Sizes available from 1.000” to 2.75” (24mm - 70mm)
| SIZE/INCH | D4 | D5 | L1 | L2 | N | M | ||
| MIN | MAX | MIN | MAX | |||||
| 1.000 | 1.625 | 1.889 | 4.000 | 1.635 | 2.000 | 2.80 | 3.25 | 0.525 |
| 1.125 | 1.750 | 2.015 | 4.125 | 1.603 | 2.125 | 2.93 | 3.38 | 1.525 |
| 1.250 | 1.875 | 2.294 | 4.250 | 1.603 | 2.125 | 3.21 | 3.50 | 2.525 |
| 1.375 | 2.000 | 2.421 | 4.375 | 1.603 | 2.125 | 3.34 | 3.63 | 3.525 |
| 1.500 | 2.250 | 2.680 | 4.875 | 1.680 | 2.187 | 3.60 | 4.13 | 3.525 |
| 1.625 | 2.375 | 2.812 | 5.000 | 1.680 | 2.187 | 3.77 | 4.25 | 0.562 |
| 1.750 | 2.500 | 2.918 | 5.250 | 1.680 | 2.187 | 3.87 | 4.50 | 0.562 |
| 1.875 | 2.625 | 2.918 | 5.250 | 1.680 | 2.187 | 3.87 | 4.50 | 0.562 |
| 2.000 | 2.750 | 3.015 | 5.500 | 1.711 | 2.375 | 4.00 | 4.75 | 0.562 |
| 2.125 | 2.875 | 3.360 | 5.859 | 1.711 | 2.375 | 4.47 | 4.91 | 0.687 |
| 2.250 | 3.000 | 3.485 | 6.500 | 1.711 | 2.475 | 4.57 | 5.55 | 0.687 |
| 2.375 | 3.125 | 3.610 | 6.500 | 1.711 | 2.528 | 4.72 | 5.55 | 0.687 |
| 2.500 | 3.375 | 3.891 | 6.750 | 1.703 | 2.625 | 5.00 | 5.80 | 0.687 |
| 2.625 | 3.687 | 4.062 | 6.750 | 1.727 | 2.562 | 5.17 | 5.80 | 0.687 |
| 2.750 | 3.687 | 4.062 | 6.750 | 1.727 | 2.562 | 5.17 | 5.80 | 0.687 |
| D1 | D4 | D5 | L1 | L2 | N | M | ||
| Shaft Size | MIN | MAX | MIN | MAX | ||||
| 24 | 41.0 | 48.0 | 101.6 | 41.5 | 50.8 | 71 | 83 | 13.3 |
| 25 | 41.0 | 48.0 | 101.6 | 41.5 | 50.8 | 71 | 83 | 13.3 |
| 28 | 44.0 | 51.2 | 104.6 | 40.7 | 50.8 | 74 | 86 | 13.3 |
| 30 | 46.0 | 58.3 | 108.0 | 40.7 | 54.0 | 82 | 89 | 13.3 |
| 32 | 47.6 | 58.3 | 108.0 | 40.7 | 54.0 | 82 | 89 | 13.3 |
| 33 | 50.8 | 61.5 | 111.1 | 40.7 | 54.0 | 85 | 92 | 13.3 |
| 35 | 50.8 | 61.5 | 111.1 | 40.7 | 54.0 | 85 | 92 | 13.3 |
| 38 | 57.2 | 68.1 | 123.8 | 42.7 | 55.5 | 91 | 105 | 13.3 |
| 40 | 60.0 | 71.4 | 127.0 | 42.7 | 55.5 | 96 | 108 | 14.3 |
| 43 | 63.5 | 74.1 | 133.4 | 42.7 | 55.5 | 98 | 114 | 14.3 |
| 45 | 63.5 | 74.1 | 133.4 | 42.7 | 55.5 | 98 | 114 | 14.3 |
| 48 | 66.7 | 74.1 | 133.4 | 42.7 | 55.5 | 98 | 114 | 14.3 |
| 50 | 69.9 | 76.6 | 139.7 | 43.5 | 60.3 | 102 | 121 | 14.3 |
| 53 | 73.0 | 85.3 | 148.8 | 43.5 | 60.3 | 114 | 125 | 17.5 |
| 55 | 73.0 | 85.3 | 148.8 | 43.5 | 60.3 | 114 | 125 | 17.5 |
| 58 | 79.4 | 91.7 | 165.1 | 43.5 | 64.2 | 120 | 141 | 17.5 |
| 60 | 79.4 | 91.7 | 165.1 | 43.5 | 64.2 | 120 | 141 | 17.5 |
| 63 | 85.7 | 98.8 | 171.5 | 43.3 | 66.7 | 127 | 147 | 17.5 |
| 65 | 85.7 | 98.8 | 171.5 | 43.3 | 66.7 | 127 | 147 | 17.5 |
| 70 | 93.6 | 103.2 | 171.5 | 43.9 | 65.1 | 131 | 147 | 17.5 |
We are engaged in manufacture and installation exporting and wholesaling quality range of Industrial Seal, Single Spring Seal, Balance and Unbalance Spring Seal, External Mounted Seal, PTFE Bellow External Mounted Seal, Catridge Balance Seal, Multiple Spring Balance Seal, Dry Running Reverse Balance Seal, Agitator Double Acting Unbalance Seal, Single Conical Helical Spring, Rubber Bellow Seal, Multi Spring Seal, Metal Bellow Seal, Elastomer Bellow Seal, Conical Spring Seal, Air Condition Compressor Seal, Auto Cooling Seal, Metallic Bellow Seal,
All ranges of mechanical seals for Flygt Pumps, Grundfos Pumps, Pumps, APV Pumps, Grindes Pumps, Fristam, ABS, Alleeiler, EMU, GEA
Tunchenhagen, Godwin, Hidrostal, Hilge, Johnson, Lowara, Waukesha, Vogelsang Pumps etc.
At the meantime, we could manufacture seals according to your sample or drawing, and design as your request
Question 1: Are you a factory or a trade company?
Answer: We are a factory and have our top sales for the trade service.
Question 2: Can I try to get a SAMPLE before the order?
Answer: Sure. You can ask for the samples. Usually they're free.
Question 3: Where is your factory located? How can I visit there?
Answer: Our factory is located in Ningbo, China. You can fly to Ningbo or Shanghai airport directly. All our clients, from home or abroad, are warmly welcome to visit us!
Question 4: How does your factory do regarding quality control?
Answer: Quality is priority. We always attach great importance to quality controlling from the very beginning to the very end. Our factory has gained ISO9001 authentication.
Question 5: How about the lead time?
Answer: Within10-20 days after getting the prepayment.
Question 6: How can we pay?
Answer: For small sample shipping cost, you can pay either by paypal or by T/T. And by T/T at sight for large amount of the order.
Question 7: If OEM available?
Answer: Yes, we provide all of our products OEM /ODM service.
Question 8: If I can buy pumps or pump parts from your company?
Answer: Yes , we also provide pumps and pump parts, such as Lobe pumps, Compound & homogeneous pumps, Homogeneous & emulsification pumps and so on
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.