Cast Iron Butterfly Valve

Size Range
2" ~ 48" (DN50~DN1200)
Temperature Range
Natural rubber ≤ 85°C, EPDM ≤100°C
Pressure Rating
150LB (PN10~PN16)
Operation Type
handle, worm gear, electric, pneumatic, hydraulic

Specification Parameters

Name cast iron butterfly valve
Size 2" ~ 48" (DN50~DN1200)
Pressure 150LB (PN10~PN16)
Temperature Natural rubber ≤ 85°C,  EPDM ≤100°C
Drive Mode handle, worm gear, electric, pneumatic, hydraulic
Applicable media gypsum slurry, limestone slurry, recycled water, process water, wastewater, etc.

Main parts materials

Valve Body  Gray cast iron, ductile iron
Butterfly Plate carbon steel coated rubber, carbon steel coated fluoroplastic, stainless steel duplex stainless steel plate 1.4529, C276
Valve Natural rubber, EPDM rubber
Valve lever stainless steel, 2Cr13, 304

Product Introduction

 flanged cast iron soft sealing butterfly valve is a midline butterfly valve. Connection method: clip type, flange type, the whole disc and valve have a two-way sealing function in the 360° circumference concentric (middle line). The valve seat and the valve body lining are integrated, which are suitable for various corrosive media, and the pipeline is opened and closed or adjusted to meet the control requirements. The butterfly valve cylinder is composed of high-precision pneumatic piston actuator and mid-line sealing butterfly valve. The butterfly valve not only has excellent anti-corrosion, (alkali resistance, salt performance, weak acid corrosion resistance) wear resistance and wear reduction performance (more than ordinary butterfly valve service life) It has the characteristics of non-toxic, anti-bacterial, anti-mildew, etc., and it has less operating torque, (40% lower than ordinary butterfly valve). It has convenient advantages such as convenient maintenance and beautiful appearance. Cast iron butterfly valve is mainly used in water treatment equipment, widely used in food, medicine, chemical, petroleum, electric power, textile, papermaking and other water supply and drainage, gas pipelines for regulating flow and intercepting medium.

cast iron butterfly valveFeatures:

1. Nylon coating combined with epoxy coating meets environmental requirements.

2, the valve plate has a unique design, the flow coefficient is large, and the flow resistance is small. Zero leakage at rated pressure.

3. The semi-axle has no pin connection, the structure is simple and compact, the maintenance and disassembly is very convenient, and it can be quickly disassembled. The disc has an automatic alignment function, which realizes the interference fit between the butterfly plate and the valve seat.

4. The valve stem seal ring has a two-way sealing function to prevent the outflow of the medium and prevent the intrusion of foreign materials, so that the whole valve has zero leakage.

5. Butterfly valve has good cutting and adjusting performance, and can achieve bubble-level sealing, small opening and closing torque and long service life.

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