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 usually think and practice corresponding for the change of circumstance, and grow up. We aim at the achievement of a richer mind and body as well as the living 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: Swiss, Haiti, Accra, We have gained a lot of recognition among customers spread all across the world. They trust us and always give repetitive orders. Furthermore, mentioned below are some of the major factors that have played significant role in our tremendous growth in this domain.

The product manager is a very hot and professional person, we have a pleasant conversation, and finally we reached a consensus agreement.
