Mechanical seal R-4702. Page 2
Mechanical seal R-4702
Double mechanical seal R-4702 - with elastomeric bellows, independent of the direction of rotation of the shaft, with a central spring, unloaded. In the chamber of the mechanical seal, a shut-off fluid (often an oil chamber) is used to lubricate and cool the sealing surfaces, under pressure exceeding the pressure of the working medium by 0.1 ... 0.2 Mpa. In case of leakage, the barrier liquid penetrates into the product.
Application: Grundfos, Pedrollo and other submersible pumps, sewage pumps. Sealed media may include solid particles.
Analog of mechanical seals: Burgmann EA560D.
Temperature: -20°~70°
Pressure: ≤0.3 MPa
Speed: ≤20 m/sec
Materials:
- Rotary ring: Carbon/SIC;
- Stationary ring: Carbon/SIC;
- Bellows: NBR/VITON;
- Spring: SS304/SS316;
- Metal parts: SS304/SS316.
| d1 (H6) | d7 (Max) | D7 (h8) | L1D (±0.5) | L4 | LI4 |
| 12 | 25 | 25 | 36,0 | 5 | 5 |
| 13 | 25 | 25 | 36,0 | 5 | 5 |
| 14 | 30 | 30 | 38,0 | 5 | 5 |
| 15 | 30 | 30 | 38,0 | 5 | 5 |
| 16 | 30 | 30 | 38,0 | 5 | 5 |
| 18 | 35 | 38 | 49,0 | 7 | 7 |
| 19 | 35 | 38 | 49,0 | 7 | 7 |
| 20 | 38 | 44 | 49,0 | 7 | 7 |
| 25 | 44 | 50 | 51,0 | 7 | 7 |
| 30 | 50 | 57 | 59,0 | 9 | 8 |
| 35 | 58 | 64 | 61,0 | 9 | 9 |
| 40 | 64 | 70 | 64,5 | 11 | 9 |
| 45 | 66 | 70 | 65,0 | 10 | 9 |
| 50 | 72 | 80 | 69.5 | 10 | 9 |
Pre-order only
Vendor code: 1010377
| Shaft diameter | 18 |
| Outer diameter of the fixed ring, mm | 38 |
| Producer | BTS Engineering |
| Stationary and rotating face | CAR/CER/SIC/SIC |
| Material of metal part | AISI 304 stainless steel |
$54
$-2
$56 
Pre-order only
Vendor code: 1010378
| Shaft diameter | 19 |
| Outer diameter of the fixed ring, mm | 38 |
| Producer | BTS Engineering |
| Stationary and rotating face | CAR/CER/SIC/SIC |
| Material of metal part | AISI 304 stainless steel |
$57
$-3
$60 
Pre-order only
Vendor code: 1010381
| Shaft diameter | 35 |
| Outer diameter of the fixed ring, mm | 64 |
| Producer | BTS Engineering |
| Stationary and rotating face | CAR/CER/SIC/SIC |
| Material of metal part | AISI 304 stainless steel |
$104
$-6
$110 
Pre-order only
Vendor code: 1010382
| Shaft diameter | 40 |
| Outer diameter of the fixed ring, mm | 70 |
| Producer | BTS Engineering |
| Stationary and rotating face | CAR/CER/SIC/SIC |
| Material of metal part | AISI 304 stainless steel |
$191
$-10
$201 
Pre-order only
Vendor code: 1010383
| Shaft diameter | 45 |
| Outer diameter of the fixed ring, mm | 70 |
| Producer | BTS Engineering |
| Stationary and rotating face | CAR/CER/SIC/SIC |
| Material of metal part | AISI 304 stainless steel |
$215
$-12
$227 
Pre-order only
Vendor code: 1010384
| Shaft diameter | 50 |
| Outer diameter of the fixed ring, mm | 80 |
| Producer | BTS Engineering |
| Stationary and rotating face | CAR/CER/SIC/SIC |
| Material of metal part | AISI 304 stainless steel |
$238
$-13
$251 
