Rising Stem Double Disc Parallel Gate Valve
manufacturer: Shanghai MeiYan Yi Pump & Valve Co., Ltd.
Eml: sales@1bengfa.com
Tel: +86 (21) 5640 2009
Mob: +86 138 1691 3072（WeChat Same Account）
product drawing
Rising stem double disc parallel gate valves
The uses of rising stem double disc parallel gate valve
Z44T/W-10 rising stem double disc parallel gate valve is widely used in petroleum, chemical, pharmaceutical, and electric power industries. It is also used to open and close the pipeline, through which the medium is steam, water, oil and the nominal pressure ≤ 1.0Mpa.
Dimensions & constructral diagram
Rising stem double disc parallel gate valve constructral diagram
The materials of main parts
| Part Name | Material | |
| Z44T-10 | Z44W-10 | |
| body,bonnet | Grey cast iron | Grey cast iron |
| disc | Grey cast iron and brass | Grey cast iron |
| stem | Carbon steel or copper | Carbon steel or copper |
| wedge | Ductile iron | Ductile iron |
| stem nut | Bronze(ductile iron) | Bronze(ductile iron) |
| handwheel | Grey cast iron(ductile iron) | Grey cast iron(ductile iron) |
The performance specifications
| model | Nominal pressure （MPa） | Test pressure | Suitable Temperature （℃） | Applicable medium | |
| intensity（water） （MPa） | sealing（water） （MPa） | ||||
| Z44T-10 | 1.0 | 1.5 | 1.1 | ≤200 | Steam, water |
| Z44W-10 | ≤100 | oil | |||
The external and connection dimensions
| model | Nominal diameter DN(㎜) | dimension | weight（㎏） | |||||||
| L | D | D1 | D2 | b-f | z-фd | H | Do | |||
| Z44T/W-10 | 40 | 165 | 145 | 110 | 85 | 18-3 | 4-ф18 | 240 | 140 | 11 |
| 50 | 178 | 160 | 125 | 100 | 20-3 | 4-ф18 | 260 | 180 | 17 | |
| 65 | 190 | 180 | 145 | 120 | 20-3 | 4-ф18 | 300 | 180 | 20 | |
| 80 | 203 | 195 | 160 | 135 | 22-3 | 4-ф18 | 345 | 200 | 26.5 | |
| 100 | 229 | 215 | 180 | 155 | 22-3 | 8-ф18 | 395 | 200 | 31.5 | |
| 125 | 254 | 245 | 210 | 185 | 24-3 | 8-ф18 | 478 | 240 | 46.5 | |
| 150 | 267 | 280 | 240 | 210 | 24-3 | 8-ф23 | 558 | 240 | 61 | |
| 200 | 330 | 335 | 295 | 265 | 26-3 | 8-ф23 | 720 | 320 | 101 | |
| 250 | 380 | 390 | 350 | 320 | 28-3 | 12-ф23 | 845 | 320 | 144 | |
| 300 | 420 | 440 | 400 | 368 | 28-4 | 12-ф23 | 990 | 400 | 210 | |
| 350 | 450 | 500 | 460 | 428 | 30-4 | 16-ф23 | 1175 | 400 | 270 | |
| 400 | 480 | 565 | 515 | 482 | 32-4 | 16-ф25 | 1250 | 500 | 395 | |
