QFF3 Blance Needle 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
QFF3 blance needle valves
Dimensions & constructral diagram
QFF3 blance needle valve constructral diagram
The materials of main parts
| Part name | body | Stem | seat | packing | Packing bonnet | Handwheel |
| QFF3-160-DN5 | Carbon steel | Cr Stainless steel | PTFE,Flexible graphite | Carbon steel | High quality carbon steel | |
| QFF3-320P-DN5 | Cr-Ni Stainless steel | Cr Stainless steel | Cr-Ni Stainless steel | Stainless steel | ||
Main performance and specification
| Type | Nominal Pressure（MPa） | Test pressure PS（MPa） | Working Pressure（MPa） | Working Temperature (℃) | Applicable medium | ||
| Shell（MPa） | Sealing (liquid) | Sealing (gas) | |||||
| QFF3-320-DN5 | 32.0 | 48.0 | 35.2 | 0.6 | 32.0 | P≤540℃ | Petroleum gas Water, acid,Steam, Oil, etc. |
| C≤425℃ | |||||||
Main external and connection dimensions (mm)
| Type | Nominal diameter DN(mm) | Dimensions | Weight (Kg) | |||||
| L1 | D1 | Do | H | H1 | L2 | |||
| QFF3-320-DN5 | 5 | 200 | 14 | 65 | 234 | 260 | 54 | 3.8 |
