Horizontal installation, maximum pressure difference 41bar, maximum displacement up to 2000Kg/h
Materials
Valve body, valve cover: WCB/WC6/CE8
Valve seat: Martensitic stainless steel
Valve disc: Martensitic stainless steel
Other internal parts: stainless steel
| Selection | Restrictions (Alloy Steel) | Restrictions (carbon steel/stainless steel) | Installation Instructions |
| •Built-in stainless steel check valve (CV) •Enlarged vent hole (LV) •Borne pass needle (BVSW) | • Design pressure (PMA): 63bar • Maximum operating pressure (PMO): 41bar • Maximum operating temperature (TMO): 343℃ | • Design pressure (PMA): 63bar • Maximum operating pressure (PMO): 41bar • Maximum operating temperature (TMO): 343℃ | Keep the valve body vertical during installation to ensure the vertical up and down movement of the bucket. The inlet and outlet of the valve are level, and the steam trap is installed below the drainage point to maintain the water seal inside the valve. |
Dimensions/Weight (approximate) mm and Kg
| Model | 981(PF) | 983(PF) | ||||||
| Nominal diameter | 15 | 20 | 25 | 20 | 25 | 32 | 40 | |
| A(mm) | 130 | 200 | ||||||
| A1(mm) | 210 | 290 | ||||||
| B(mm) | 120 | 195 | ||||||
| C(mm) | 225 | 325 | ||||||
| D(mm) | 115 | 185 | ||||||
| Weight(Kg) | Thread | 5 | 1 | |||||
| Flange | 7.8 | 8 | 8.5 | 21 | 22 | 22 | 23 | |
Technical Parameters
| Model | 981 | 983 | |
| Connection Type | Welding and flange preparation | ||
| Installation | level | ||
| Maximum working pressure difference (PMX) | (A) | 1.4bar | 1bar |
| (B) | 3.4bar | 2bar | |
| (C) | 5.8bar | 4bar | |
| (D) | 10bar | 5.5 bar | |
| (AND) | 17bar | 8.6 bar | |
| (F) | 22bar | 12.4bar | |
| (G) | 41bar | 17bar | |
| (H) | / | 31 bar | |
| (I) | / | 41bar | |
Ordering Instructions
Please specify:
.model
Nominal diameter
Minimum and maximum working pressure difference
Connection method and standard
Options
