Cast Steel Welded Butterfly Valve Wafer Type For Petrochemical Industry
Brief description of cast steel welded butterfly valve
The welded butterfly valve adopts a precise J-shaped elastic sealing ring and a three-eccentric multi-layer metal hard sealing structure. It is widely used in industrial pipelines such as metallurgy, electricity, petrochemical, water supply and drainage, and municipal construction with a medium temperature of ≤425℃ to adjust flow and carry and cut off fluid.
Cast Steel Welded Butterfly Valve Main Materials
| Part name | Material |
| Valve body | Carbon steel, stainless steel, chrome aluminum steel |
| Butterfly plate | Carbon steel, alloy steel, stainless steel |
| Valve seat | 3 stainless steel, cobalt-based carbide |
| Sleeve | Stainless steel |
| Valve stem | Stainless steel, special materials |
| Packing | Flexible graphite |
| Nominal pressure PN (MPa) | Strength test (1.5×PN) Sealing test (1.1×PN) |
| Applicable temperature | Carbon steel: -29℃～425℃ |
| Applicable medium | Water, steam, hot water, oil |
| Drive mode | Worm gear drive, electric, pneumatic, hydraulic |
| Pressure level | ANSI 150Lb pound class/PN25 |
| Welding standard | GB12224, ANSI B16, 25, DIN2559 |
Feature
1.buttertly plate sealforthe hard and softlayering pieces of metal with a metal seal and flexible seal the dual advantage of both low and high tamperature
cases,both with excellent sealing perormance.
2. using hree-dimansional eccentric sructure, valve seat and buterly plate almost no fiction, with the more closed more tight sealing function.
3. valve sealing surface, using welding stainless steel, cobalt-based alloy, sealing surface wear reslstance and long service life.
4. The struclure is unique, the operaion nimble,reduces elor,conveniently,the medium pressure high,the lowinuence, the sealing properly not to be unreliable,the service life is long.The usual double eccentric butterfly valve, as b (deviate from the pipe center) and a (deviate from the sealing surace of the centerline) as shown in the alm of reducing valve seat and seal between the friction of approximately 15* travel.HPV adds a unique eccentric angle , slope ofthe cone not only overcome he valve open and clase the sealand the seatall contacts between the fricion.
Who we are
SND has been producing and selling metal goods for about 20 years.By using manufacturing techniques including sand casting, lost wax casting, lost foam casting, and precision machining, the company has been supplying goods made of materials like cast iron, steel, stainless steel, aluminum, etc. Additionally offered are surface finishing and assembly services.
Our company has successfully created products in a variety of industries, including automotive, rail transportation, agricultural machinery, chemical, energy, electricity, water, air compressor, and construction, thanks to our consistent efforts over the past few years.
Our factories' ISO9001-accredited quality control systems guarantee a consistent and dependable quality for each and every component.
Spectrometer, ultrasonic, magnetic, permeability, elongation, tensile/yield strength, and other inspections are carried out as part of routine production procedures.
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