Model GS 51 Weir Type
GS 51 is G&O’s Weir Type Diaphragm Valves designed with Non-Raising Hand Wheel & Non- Raising Stem design from Sizes DN 25 to DN 300. Available with various actuators like Gear Boxes, Pneumatic and Electric.
| S.No. | Description | Material |
| 1 | Body | Cast Iron |
| 2 | Bonnet | Cast Iron |
| 3 | Stem | Stainless Steel |
| 4 | Compressor | Aluminium |
| 5 | Bush | Brass |
| 6 | Handwheel | Aluminium |
| 7 | Diaphragm | Natural Rubber |
| 8 | Fasteners | Carbon Steel |
| Pressure Details UNI _ 1284 | ||
| DN (INCHES/mm) | Working Pressure in Kg / Cm2 | Working Pressure In Psi |
| 1"/25 | 16 | 232 |
| 1 1⁄2"/40 | 16 | 232 |
| 2"/50 | 16 | 232 |
| 2 1⁄2"/65 | 10 | 145 |
| 3"/80 | 10 | 145 |
| 4"/100 | 10 | 145 |
| 5"/125 | 10 | 145 |
| 6"/150 | 10 | 145 |
| 8"/200 | 6 | 90 |
| 10"/250 | 5 | 75 |
| 12"/300 | 4 | 60 |
| Weight | ||
| DN (INCHES/mm) | LBS | Kgs |
| 1”/ 25 | 8.81 | 4 |
| 1 1⁄2 ” / 40 | 19.84 | 9 |
| 2" / 50 | 30.86 | 14 |
| 2 1⁄2 ” / 65 | 41.88 | 19 |
| 3” / 80 | 52.91 | 24 |
| 4” / 100 | 81.57 | 37 |
| 5” / 125 | 110.23 | 50 |
| 6” / 150 | 154.32 | 70 |
| 8” / 200 | 308.64 | 140 |
| 10” / 250 | 485 | 220 |
| 12” / 300 | 705.48 | 320 |
| Dimensions in Inches/ MM | |||
| DN | A | B | |
| Un Lined | Lined | ||
| 1"/25 | 53.71/145 | 5/127 | 5.67/133 |
| 1 1⁄2"/40 | 6.97/177 | 6.26/159 | 6.5/165 |
| 2"/50 | 7.48/190 | 7.48/190 | 7.72/196 |
| 2 1⁄2"/65 | 9.25/235 | 8.5/216 | 8.74/222 |
| 3"/80 | 9.84/250 | 10/254 | 10.28/261 |
| 4"/100 | 12.6/320 | 12.01/305 | 12.32/313 |
| 5"/125 | 15.35/390 | 14.02/356 | 14.33/364 |
| 6"/150 | 16.14/410 | 15.98/406 | 16.3/414 |
| 8"/200 | 23.03/585 | 20.51/521 | 20.83/529 |
| 10"/250 | 25.79/655 | 25/635 | 25.39/645 |
| 12"/300 | 28.35/720 | 29.49/749 | 29.88/759 |
