19194976688
Silicon nitride ball valve
Silicon nitride ball valve according to different working conditions, can be divided into a variety of different materials, structural forms, at the same time, can do different control methods: electric, pneumatic, manual can be.
Silicon nitride ball valve completely changed the metal hard seal ball valve leakage, torque, sealing surface is not corrosion resistant shortcomings; And has good wear resistance, high reliability, long service life, is titanium alloy valve and Monel valve 2-4 times. Manufacturers direct supply, reliable quality.
Advantages of silicon nitride ball valve products:
Beautiful appearance&solid body
Good sealing performance: fully open and fully closed state cover are not in direct contact with the medium, so the sealing surface is not easy to scratch
Resistant to corrosion and wear
antioxidant
High and low temperature resistance, good heat insulation performance
The valve structure is simple, the flow channel is smooth, and the medium flow resistance is small
High ball precision, good surface quality, so that the whole valve torque, small resistance, sealing to zero leakage
anti-scouring
self-lubricating
Long service life
Ball valve structure principle:
Silicon nitride ball valve performance indicators :
Performance | Ⅰ | Ⅱ | Ⅲ | ||
Density/(g/cm³) | 3.15≤ρ≤3.25 | ||||
Elastic modulus/GPa | 270≤E≤330 | ||||
Poisson's ratio | 0.23≤μ≤0.29 | ||||
Coefficient of thermal expansion (room temperature to 500℃)/X10-6/℃ | 2.0≤α≤3.7 | ||||
Bending strength/MPa | Four-point test | ≥750 | ≥650 | ≥530 | |
Three-point test | ≥820 | ≥720 | ≥550 | ||
Vickers hardness（HV） | ≥1420 | ≥1330 | ≥1270 | ||
Fracture toughness | ≥6 | ≥5 | ≥5 | ||
Crushing load ratio | 40% | 35% | 30% | ||
microcosmic structure | Air hole/μm | ≤10 | ≤10 | ≤25 | |
Inclusion | 25<S≤50 | ≤4 | ≤8 | ≤16 | |
50<S≤100 | ≤1 | ≤2 | ≤4 | ||
100<S≤200 | 0 | ≤1 | ≤25 | ||
S>200 | 0 | 0 | ≤1 | ||
Ceramic product processing accuracy :
Item | Precision value | ||||
Dimensional exact values | Up to 0.001mm | ||||
Degree of finish | Up to mirror | ||||
The number of concentricities | Up to 0.003mm | ||||
The number of parallelism | Up to 0.002mm | ||||
Bore tolerance | The minimum can be machined 0.005mm | ||||
Straight groove | The narrowest machined groove is 0.1*100mm | ||||
Thickness dimension | Minimum machining to 0.08mm | ||||
Screw thread | Min machining inner thread M2, outer thread no limited | ||||
Cylindricity dimension | Up to 0.004mm | ||||
Linear tolerance | Up to 0.001mm | ||||
Min aperture | The minimum processing capacity is 0.07mm |
Silicon nitride ball valve application field:
Silicon nitride ball valve is widely used in papermaking, chemical fiber, petrochemical, petroleum, thermal power plants, metallurgy, chemical, environmental protection, light industry, biological engineering,
building automation and other industrial automation control system. It is suitable for boiler steam, lime slurry, seawater with particles, high hardness particles, soft particles with corrosive media, powder,
flue gas desulfurization, ash discharge, slag discharge, water supply treatment. Change the material according to the use, can be used in different temperatures and media.
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Jiangxi Silicon Nitride New Material Co., LTD  Building 19, Phase 4, Electronic Information Industrial Park, Hedong Industrial Park, Nancheng County, Fuzhou City, Jiangxi Province
19194976688 16679068073 sales@sixny.com.cn |
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