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 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 part material

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.

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lug type butterfly valve

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