The multi-stage pressure reducing control valve adopts a multi-stage pressure reducing single-seat structure, allowing for a large pressure difference, resistance to cavitation, resistance to erosion, and low noise.
Body Construction
1 | Valve body | 7 | Packing |
2 | Valve seat | 8 | Packing gland |
3 | Valve core/Valvestem | 9 | Nut |
4 | Roller | 10 | Doube-screw bolt |
5 | Grommet | 11 | Doube-screw bolt |
6 | Valve bonnet | 12 | Nut |
Standard specifications
Type | Multi-Stage Step-Down Control Valve |
Body Size | DN15~DN200 (1/2~8) |
Body Ratings | PN100,160,220,250,320,420; ANSI Class600,900,1500,2500 |
Body & Bonnet Material | A105, F304、F316,12Cr1MoV,WCB, CF8, CF8M... |
Packing | V-PTFE/ Flexible graphite |
Grommet | GRAP+304, GRAP+316, PTFE |
Connections | Flange type (RF, MFM)/Welding type (SW, BW) |
Painting Color | Brown paint/No painting on stainless steel valve body/ silver paint... |
Bonnet Type | Standard type, Fin-Extension type |
Note: The above are only standard combinations, and specifications outside of this table are also possible depending on the operating conditions.
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