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Butterfly Valve Double Flanges with High Precision Casting
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We can design,pour,shot blasting, polishing, machining, spray paint processing according to customers drawings and models.
According to methods of connection,we can divide as followers:
(1) butterfly: open-close part (disc) rotates around the seat within the fixed axis;
(2) line slide valve: open-close part slides in the perpendicular to the direction of the channel.
(3) connected to the clamp: it directly bolts to the valve and the connection forms of two pipe clamp wear together.
(4)Â metal body lining valve: the valve has metal appearance, internal lining contacts with the medium are the major surface, such as rubber lining, lining plastic valves, ceramic valve, etc.
 
Material
Grey iron, cast iron, ductile cast iron, nodular cast  iron, malleable iron
Process
Sand casting, green sand, resin-bonded sand,
Heat Treatment
Tempering, Annealing
Surface Treatment
Shot blasting, chrome/zinc plating,spray paint, polishing,
Casting size
Casting iron and nodular iron: 5.0 kg - 10,000 kg
Quality Certificate
3.1B material certificate ;Â Â Dimension reports; NDT reports.
Inspection equipment
Packagae
On site
Butterfly Valve Double Flanges with High Precision Casting
The company mainly produces ductile iron casting (QT450, QT500, QT600, QT700, etc.), carbon steel, stainless steel, including grooved pipe fittings of various types of auto parts, agricultural machinery accessories, pulley, automobile brake disc and the groove pipe fittings, such as airports, power plants, highways with the movement of the ground cover plate assembly, fire hydrant, valve, flange, etc.
The production technology of Butterfly valve is sand mold casting, its materials is nodular cast iron.