Large motorized butterfly valve is operated by electric actuator, widely used in water source projects, urban water supply and drainage, sewage treatment system, pharmaceutical, food production etc, size ranges from DN600 to DN3000, pressure range from PN6, PN10, PN16, PN25, PN40.

Main features:
Simple structure and excellent performance.
Small, lightweight, easy installation and maintenance.
Completely sealed, double eccentric disc.

Material of main parts:
Body: gray iron, ductile iron, cast steel, cast stainless steel
Disc: Nickel-plated ductile iron, cast steel or corrisive epoxy resin coating, cast bronze, stainless steel
Seat: NBR, NBR, PTFE, etc.
Shaft: stainless steel, Bronze
Seal Packing: NBR NBR, PTFE, etc.
Actuator: gearbox+electric, hydraulic, pneumatic etc

Performance and specifications:
Nominal diameter (mm): DN600 to DN3000
Nominal pressure (MPa): 0.6, 1.0, 1.6, 2.5, 4.0

Technical Specification		PN(Mpa)					ANSI Class (Lbs)
		0.6	1.0	1.6	2.5	4.0	150
Test Pressure (MPA)	Shell Test	0.9	1.5	2.4	3.75	6.0	2.94
	Seal Test	0.66	1.1	1.76	2.75	4.4	2.16
	Air Test	0.55+/-0.07

These products are widely used in water source projects, urban water supply and drainage, sewage treatment, electric power, petroleum, petrochemical, heat supply, shipbuilding, medicine and metallurgy industries. Valves are used for regulating or cutting off liquids in pipelines.

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