Product Description: bmcsg nuclear grade graphite gasket is a kind of nuclear grade graphite gasket for high performance pipeline and equipment flange made of nuclear grade materials. Under the condition of metal touch metal, the sealing stress is constant. It can meet the requirements of very low leakage, heat shock resistance and radiation resistance, and is widely used in harsh operating conditions, such as: high temperature, high pressure, large temperature difference and pressure difference fluctuation, corrosive medium, radiation and other environments.
Product features: after the gasket is installed, due to the contact between the flange and the gasket outer ring and the application of sufficient additional load, the bmcsg gasket perfectly solves the lack of sealing stress caused by external factors (such as temperature and pressure fluctuation, thermal shock, bolt stress relaxation and creep, etc.), ensuring the safety and reliability of the confidential seal.
Performance parameters:
| Performance | Parameters |
Helium vacuum tightness test | ≤ 1.0x10 -6 Pa∙m3 /s
NB/T 20366-2015 Test method for nuclear grade graphite gasket of nuclear power plant |
working temperature | - 196 ~ + 650℃ |
Maximum working pressure | ＜ 50MPa（500bar） |
Applicable medium | Suitable for any environment other than strong oxidation medium |
Raw material | Nuclear grade graphite and nuclear grade stainless steel (z2cnd17-12, or special requirements for nuclear grade 022cr17ni12mo2, to be noted in the contract) |
Application scenario: it is applicable to the sealing of equipment and pipeline flanges in nuclear power, chemical industry, oil refining, petrochemical, metallurgy, ship, energy and other industrial sectors. It is widely used in all operating power plants of CNPE and CGNPC.
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