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 |
$59
$-4
$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 |
$64
$-3
$67 
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 |
$66
$-4
$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
$-3
$73 
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 |
$128
$-6
$134 
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 |
$133
$-7
$140 
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 |
$137
$-7
$144 
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 |
$144
$-7
$151 
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 |
$153
$-8
$161 
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
$-1
$33 
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 |
$159
$-8
$167 
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 |
$169
$-9
$178 
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 |
$175
$-9
$184 
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 |
$184
$-10
$194 
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 |
$191
$-10
$201 
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 |
$200
$-11
$211 
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 |
$206
$-11
$217 
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 |
$44
$-3
$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 |
$222
$-12
$234 
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 |
$231
$-13
$244 
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 |
$238
$-13
$251 
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 |
$153
$-8
$161 
