Professional Design Man Hole Keys - Pipe And Fitting’s Coupling And Connectors – YONGTIA Detail:
| DN | ≈D(mm) | ≈H(mm) | ≈L(mm) | Torque(NM) | Bolt | Bar |
| 50 | 71 | 83 | 42 | 18.00 | M8 | 5 |
| 70 | 91 | 103 | 45 | 18.00 | M8 | 5 |
| 75/80 | 96 | 107 | 47 | 18.00 | M8 | 5 |
| 100 | 123 | 135 | 47 | 18.00 | M8 | 5 |
| 125 | 152 | 164 | 54 | 18.00 | M8 | 5 |
| 150 | 177 | 189 | 54 | 18.00 | M8 | 5 |
| 200 | 230 | 244 | 67 | 28.00 | M10 | 5 |
| 250 | 290 | 315 | 95 | 30.00 | M10 | 3 |
| 300 | 350 | 375 | 95 | 30.00 | M10 | 3 |




Strip Material and Fixed parts: S.S 1.4301/1.4571/1.4510 as per EN10088(AISI304/AISI316/AISI439).
Bolt: Round head screws with hexagon socket with zinc plated.
Sealing rubber/Gasket: EPDM/NBR/SBR.
| DN | ≈A(mm) | ≈B(mm) | ≈D(mm) | ≈L(mm) | Torque(NM) | Bolt |
| 50 | 14 | 22.5 | 65 | 48 | 6-8 | M6 |
| 70 | 14 | 22.5 | 65 | 48 | 6-8 | M6 |
| 75/80 | 14 | 22.5 | 88 | 48 | 6-8 | M6 |
| 100 | 18 | 22.5 | 115 | 54 | 10-12 | M8 |
| 125 | 18 | 31 | 140 | 65 | 10-12 | M8 |
| 150 | 18 | 31 | 170 | 65 | 10-12 | M8 |
| 200 | 18 | 37 | 220 | 78 | 15-20 | M8 |
| 250 | 18 | 37 | 286 | 78 | 15-20 | M10 |
| 300 | 18 | 37 | 338 | 78 | 15-20 | M10 |


Strip Material and Fixed parts: S.S 1.4301/1.4571/1.4510 as per EN10088(AISI304/AISI316/AISI439).
Bolt: Round head screws with hexagon socket with zinc plated.
Sealing rubber/Gasket: EPDM/NBR/SBR.
| DN | ≈A(mm) | ≈B(mm) | Torque(NM) | Bolt |
| 50 | 58 | 68 | 6-8 | M6 |
| 70 | 58 | 91 | 6-8 | M6 |
| 75/80 | 58 | 96 | 6-8 | M6 |
| 100 | 58 | 120 | 10-12 | M8 |
| 125 | 58 | 140 | 10-12 | M8 |
| 150 | 72 | 168 | 10-12 | M8 |
| 200 | 84 | 226 | 15-20 | M8 |
| 250 | 142 | 280 | 15-20 | M10 |
| 300 | 142 | 350 | 15-20 | M10 |

Product detail pictures:


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We have now our possess revenue group, design staff, technical crew, QC team and package group. We now have strict excellent regulate procedures for each process. Also, all of our workers are experienced in printing subject for Professional Design Man Hole Keys - Pipe And Fitting’s Coupling And Connectors – YONGTIA, The product will supply to all over the world, such as: Birmingham, Belize, Sacramento, Our company offers the full range from pre-sales to after-sales service, from product development to audit the use of maintenance, based on strong technical strength, superior product performance, reasonable prices and perfect service, we'll continue to develop, to supply the high-quality goods and services, and promote lasting cooperation with our customers, common development and create a better future.
Hope that the company could stick to the enterprise spirit of "Quality, Efficiency, Innovation and Integrity", it will be better and better in the future.



