lug type butterfly valve
lug type butterfly valve Product introduction
lug type butterfly valve is used in on-off and control flow of media in varied pipelines such as foodstuff,beverage,medicine,chemical engineering,industrial enviromental proction,water treatment and building etc.
lug type butterfly valve structure :Wafer, Lug, Flanged Type.
butterfly valve Manufacturing standards: API, ANSI, BS, DIN, JIS
butterfly valve Sealing: metal-seated, resilience-seated
Valve Size range: from 1-1/2inch to 24 inch (DN40mm - DN600mm)
Pressure: from PN0.6MPa to PN1.6MPa
Applicable tempt.: from -40 degrees C to 230 degrees C
Connection: wafer, flanged (lug type included)
lug type butterfly valve materials: cast iron, ductile iron, aluminum bronze, carbon steel, stainless steel, etc.
lug type butterfly valve structure :Wafer, Lug, Flanged Type.
butterfly valve Manufacturing standards: API, ANSI, BS, DIN, JIS
butterfly valve Sealing: metal-seated, resilience-seated
Valve Size range: from 1-1/2inch to 24 inch (DN40mm - DN600mm)
Pressure: from PN0.6MPa to PN1.6MPa
Applicable tempt.: from -40 degrees C to 230 degrees C
Connection: wafer, flanged (lug type included)
lug type butterfly valve materials: cast iron, ductile iron, aluminum bronze, carbon steel, stainless steel, etc.
lug type butterfly valve Technical parameters
| Description | Standard |
| Design and manufacture | EN593 |
| Face to face | ISO5752 series14, EN558-1 series 14, DIN3202 F4 |
| Flange and drilling | ISO7005-2, EN1092, |
| Pressure test | EN12266 |
| Top flange of bare shaft valve | ISO5211 |
| Top flange on worm gearbox for e-actuator | ISO5210 |
lug type butterfly valve Main connection dimensions
| Name | Material |
| Body | ductile cast iron, WCB, stainless steel |
| Disc | ductile cast iron, WCB, stainless steel, Al-bronze |
| Stem | SS420, SS431 |
| Disc seat ring | EPDM,NBR,VITON |
| Body seat ring | SS304 |
| Retainer | SS304, SS316 |
| Shaft bearing | Al-bronze, self-lubricating bearing |
| Bolt & nuts | 8.8 grade galvanized, SS304 |
| Coating | epoxy coating, thickness: min. 250 microns, color code: RAl5015, 5017, 5010, and etc. |
