Worm Gear Operated Double Flanged Butterfly Valve

Model Number: Worm gear flanged butterfly valve Brand Name: OEM Key Specifications/Special Features: 。Introduction:Butterfly valve is a valve which can be used for isolating or regulating flowThe closing mechanism takes the form of a diskOperation is similar to that of a ball valve，which allows for quick shutoffThe disc is positioned in the center of the pipe，passing through the disc is a rod connected to an actuator on the outside of the valveRotating the actuator turns the disc either parallel or perpendicular to the flowUnlike a ball valve，the disc is always present within the flow，therefore a pressure drop is always induced in the flow，regardless of valve position。Specification:Body material: cast iron，carbon steel，ductile iron，stainless steelSize range: 2-12 inches（DN50--DN600）Pressure range: PN1.0--1.6MPaTemperature range: -20°--135°C
Valve strength test: 1.5--2.4MPa
Seal test: 1.1--1.76MPa
Flange: DIN2501, BS4504, BS10, table E, ANSI B16.1, JIS2220, 10K-16K
Face to face: DIN3202K1
Testing Std: DIN3230, API 598
O-ring: NBR
Circlip: 65MN
Lock piece: steel
Sleeve: PTFE
Seat ring: NBR or EPDM
Shaft: SS304
Disc: GGG40, SS304 or SS316
Screw: steel
Application: portable water，sewage，irrigation，fire protection pipe system and many more
。Other specifications are available at customer's request
。Packing details: plastic bag+plywood case，or according to customer's requirements