Manual Flange Multi-Level Metal Hard Seal Butterfly Valve

• Customization: Available
• Media: Water
• Driving Mode: Pneumatic
• Model NO.: HZD
• Connection Form: Flange
• Structure: Three-Eccentric Sealing
• Seal Form: Force Sealed
• Valve Stem: Normal
• Work Pressure: Mid-Pressure (2.5mpa< Pn <6.4mpa)
• Working Temperature: Medium Temperature (120°C<T<450°C)
• Material of Seal Surface: Metal Hard Sealed
• Valve Body: Casting
• Standard: Standard
• Application: Industrial Usage, Water Industrial Usage, Household Usage
• Transport Package: Plywood Case
• Specification: DN15-DN500
• Trademark: HUIZHENG
• Origin: China
• HS Code: 8481804090
• Production Capacity: 50000pieces/Year

Product Description

Product description
Triple eccentric butterfly valve, triple eccentric hard-sealed butterfly valve, adopts triple eccentric structure design, the valve plate has no friction with the valve seat in the full range of opening and closing, which eliminates the valve seat wear caused by the opening and closing of the rotary control valve. The leakage caused. The valve seat adopts a multi-level structure, and the sealing surface is formed by the combination of metal and non-metal materials. It performs well under high temperature and low temperature conditions. This series of butterfly valves have a long service life and excellent sealing performance, which is suitable for the adjustment and cut-off of almost all gases and liquids in industrial process control.

Valve body

Nominal diameter: DN50~1000mm

Nominal pressure: ANSI150, 300LB PN1.6, 4.0, 6.4MPa

Body type: straight-through

Structure: unbalanced

Connection method: flange, to clamp

Flow characteristics: approximately equal percentage

Leakage level: hard seal (ASME B16.104 )

Bonnet form: standard type, extended type

Operating temperature: -40ºC~350ºC

Actuator: pneumatic piston actuator, electric actuator

Material

Body material 304, WCB, QT, HT

Valve plate material 316L, 316, 304, QT*, QT+Nylon11, FEP(QT+F46), B148

Seat material EPDM, PTFE, NBR, FPM, CR, SI

Accessories

Valve positioner, air filter pressure reducer, solenoid valve, retaining valve, travel switch, valve position transmitter, handwheel mechanism, etc.

Valve body form	Direct casting valve
Nominal size	DN50~1000mm
Nominal pressure	PN1.0,1.6,2.5MPa
Flange standard	JIS B220,JB/T79,ANSI B16.5-1981,GB/T9113,HG20594-97,HG20618-97 etc.
Connection form	Fkange,Wafer
Valve cover form	Integrated
Gland type	Pressing plate pressing type
gland packing	V-shaped polytetrafluoroethylene packing, flexible graphite packing

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