Mechanical seal R-21UK. Page 2
Mechanical seal R-21UK
Mechanical mechanical seal R-21 UK (UK Standart) - single, with a strong central spring, arbitrary direction of rotation, unbalanced. The elastomeric bellows has the ability to compensate for the runout of the shaft, and thanks to the special design of the drive belt, the bellows itself does not overload and does not slip.
Application: water treatment, water supply, centrifugal pumps, compressors and other rotating equipment. Pumps of such brands: Desmi, Flowserve (SIHI), etc.
Type: John Crane 21, Burgmann MG921/D1-G50 seal, Flowserve 110 seal, Roten 21A, Sealol 43 CU Short, Vulcan 11, Aesseal P04/P04T, Sterling 212A, US Seal C, Lidering LRB01.
Temperature: -20°~145°
Pressure: ≤1.5 MPa
Speed: ≤13 m/sec
Materials:
- Rotary ring: Carbon/SIC/TC;
- Stationary ring: Ceramic/SIC/TC;
- Bellows: NBR/EPDM/VITON;
- Spring: SS304/SS316;
- Metal parts: SS304/SS316.
Mechanical seal R-21UK
| d1 | d3 | d7 | L3 | L4 |
| 10 | 20,50 | 24,60 | 25,40 | 8,74 |
| 12 | 22 ,50 | 27,79 | 25,40 | 8,74 |
| 14 | 26,50 | 30,95 | 25,40 | |
| 16 | 26,50 | 30,95 | 25,40 | 10,32 |
| 18 | 34,00 | 34,15 | 25,40 | 10,32 |
| 20 | 36,00 | 35,70 | 25,40 | 10,32 |
| 22 | 36,00 | 37,30 | 25,40 | 10,32 |
| 24 | 40,00 | 40,50 | 25,40 | 10,32 |
| 25 | 40,00 | 40,50 | 25,40 | 10,32 |
| 28 | 42,00 | 47,63 | 33,34 | 11,99 |
| 30 | 45,00 | 50,80 | 33,34 | 11,99 |
| 32 | 47,00 | 50,80 | 33,34 | 11,99 |
| 33 | 50,00 | 53,98 | 33,34 | 11,99 |
| 35 | 50,00 | 53,98 | 33,34 | 11,99 |
| 38 | 55,00 | 57,15 | 33,34 | 11,99 |
| 40 | 57,00 | 60,35 | 33,34 | 11,99 |
| 42 | 59,00 | 63,50 | 40,48 | 11,99 |
| 43 | 59,00 | 63,50 | 40,48 | 11,99 |
| 45 | 65,50 | 63,50 | 40,48 | 11,99 |
| 48 | 67,50 | 66,70 | 40,48 | 11,99 |
| 50 | 67,50 | 69,85 | 40,48 | 11,99 |
| 53 | 72,00 | 73,05 | 41,00 | 13,50 |
| 55 | 78,50 | 76,20 | 41,00 | 13,50 |
| 58 | 80,00 | 79,40 | 41,00 | 13,50 |
| 60 | 80,00 | 79,40 | 41,00 | 13,50 |
| 63 | 83,00 | 82,55 | 41,00 | 13,50 |
| 65 | 88,00 | 92,10 | 49,00 | 15,90 |
| 70 | 90,00 | 95,25 | 49,00 | 15,90 |
| 73 | 94,00 | 98,45 | 49,00 | 15,90 |
| 75 | 99,00 | 101,65 | 49,00 | 15,90 |
Mechanical seal R-21UK(Inch)
| d1 | d3 | d7 | L3 | L4 | |
| 0.375 | 9,53 | 20,50 | 24,60 | 25,40 | 8,74 |
| 0.500 | 12,70 | 22,50 | 27,79 | 25,40 | 8,74 |
| 0.625 | 15,87 | 26,50 | 30,95 | 25,40 | 10,32 |
| 0.750 | 19,05 | 34,00 | 34,15 | 25,40 | 10,32 |
| 0.875 | 22,23 | 36,00 | 37,30 | 25,40 | 10,32 |
| 1.000 | 25,40 | 40,00 | 40,50 | 25,40 | 10,32 |
| 1.125 | 28,58 | 42,00 | 47,63 | 33,34 | 11,99 |
| 1.250 | 31,75 | 47,00 | 50,80 | 33,34 | 11,99 |
| 1.375 | 34,93 | 50,00 | 53,98 | 33,34 | 11,99 |
| 1.500 | 38,10 | 55,00 | 57,15 | 33,34 | 11,99 |
| 1.625 | 41,28 | 57,00 | 60,35 | 33,34 | 11,99 |
| 1.750 | 44,45 | 61,50 | 63,50 | 40,48 | 11,99 |
| 1.875 | 47,63 | 65,50 | 66,70 | 40,48 | 11,99 |
| 2.000 | 50,80 | 67,50 | 69,85 | 40,48 | 11,99 |
| 2.125 | 53,98 | 72,00 | 73,05 | 41,00 | 13,50 |
| 2.250 | 57,15 | 78,50 | 76,20 | 41,00 | 13,50 |
| 2.375 | 60,33 | 80,00 | 79,40 | 41,00 | 13,50 |
| 2.500 | 63,50 | 83,00 | 82,55 | 41,00 | 13,50 |
| 2.625 | 66,68 | 88,00 | 92,10 | 49,00 | 15,90 |
| 2.750 | 69,85 | 90,00 | 95,25 | 49,00 | 15,90 |
| 2.875 | 73,03 | 94,00 | 98,45 | 49,00 | 15,90 |
| 3.000 | 76,20 | 99,00 | 101,65 | 49,00 | 15,90 |
Pre-order only
Vendor code: 13687_3/4__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 3/4 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$39
$-2
$41 
Pre-order only
Vendor code: 13687_30__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 30 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$60
$-3
$63 
Pre-order only
Vendor code: 13687_32__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 32 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$65
$-3
$68 
Pre-order only
Vendor code: 13687_33__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 33 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$67
$-3
$70 
Pre-order only
Vendor code: 13687_35__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 35 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$70
$-4
$74 
Pre-order only
Vendor code: 13687_38__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 38 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$76
$-4
$80 
Pre-order only
Vendor code: 13687_40__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 40 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$129
$-6
$135 
Pre-order only
Vendor code: 13687_42__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 42 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$134
$-8
$142 
Pre-order only
Vendor code: 13687_43__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 43 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$138
$-7
$145 
Pre-order only
Vendor code: 13687_45__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 45 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$145
$-8
$153 
Pre-order only
Vendor code: 13687_48__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 48 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$154
$-8
$162 
Pre-order only
Vendor code: 13687_5/8__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 5/8 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$32
$-2
$34 
Pre-order only
Vendor code: 13687_50__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 50 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$160
$-9
$169 
Pre-order only
Vendor code: 13687_53__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 53 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$171
$-9
$180 
Pre-order only
Vendor code: 13687_55__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 55 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$176
$-10
$186 
Pre-order only
Vendor code: 13687_58__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 58 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$186
$-10
$196 
Pre-order only
Vendor code: 13687_60__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 60 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$193
$-10
$203 
Pre-order only
Vendor code: 13687_63__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 63 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$202
$-11
$213 
Pre-order only
Vendor code: 13687_65__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 65 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$208
$-11
$219 
Pre-order only
Vendor code: 13687_7/8__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 7/8 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$45
$-2
$47 
Pre-order only
Vendor code: 13687_70__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 70 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$224
$-12
$236 
Pre-order only
Vendor code: 13687_73__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 73 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$234
$-12
$246 
Pre-order only
Vendor code: 13687_75__CЕR/CAR__EPDM__304__N
| Producer | BTS Engineering |
| Shaft diameter | 75 |
| Rubber type | EPDM |
| Stationary and rotating face | CЕR/CAR |
| Material of metal part | 304 |
$241
$-12
$253 
Pre-order only
Vendor code: 13687_40__SIC/SIC__VITON__304__N
| Producer | BTS Engineering |
| Shaft diameter | 40 |
| Rubber type | VITON |
| Stationary and rotating face | SIC/SIC |
| Material of metal part | 304 |
$154
$-8
$162 
