Question 1

When should I choose a metallic gasket over a non-metallic one?

Accepted Answer

Specify a metallic gasket when the application involves operating temperatures above 450C, internal pressures exceeding ASME Class 900, exposure to highly corrosive or oxidizing chemicals, requirements for high mechanical strength and anti-blowout properties, or where fire safety standards such as API 6FB are mandated. For standard water, oil or low-pressure steam services at moderate temperatures, non-metallic gaskets may be sufficient.

Question 2

What is the MOQ for wholesale metallic gaskets from Kaxite Sealing?

Accepted Answer

Our standard MOQ is 50 pieces for wholesale orders. For custom sizes and OEM gaskets, MOQ may vary depending on material and dimensions. Free samples are available for quality evaluation.

Question 3

How long is the lead time for bulk metallic gasket orders?

Accepted Answer

Standard lead time is 7-15 working days for most metallic gasket products. Custom and OEM orders may require 15-25 working days depending on specifications and order quantity. Rush orders can be accommodated upon request.

Question 4

How do I select the right material for my metallic gasket?

Accepted Answer

Material selection is a three-step process. First, identify the full chemical composition, concentration and phase of the process fluid. Second, determine the continuous and peak operating temperatures and pressures. Third, consider external environmental factors like offshore or sour service. Cross-reference this data with material compatibility charts such as NACE MR0175 for sour service. Kaxite Sealing engineers can recommend the optimal alloy based on proven industry experience.

Question 5

Can Kammprofile or spiral wound gaskets be reused?

Accepted Answer

Kammprofile gaskets are often designed for reuse if the soft facing layer is in good condition after disassembly. Spiral wound gaskets are generally not recommended for reuse as the winding can be disturbed or compressed during installation and removal. Kaxite Sealing advises inspecting any gasket after disassembly and replacing it if there are signs of winding distortion, filler degradation or permanent set. For critical services always use a new gasket.

Question 6

What causes a metallic gasket to fail and how can it be prevented?

Accepted Answer

Common failure modes include corrosion or chemical attack from wrong material selection, creep relaxation leading to leakage, crushing or over-compression from over-torquing, and blowout from insufficient bolt load. Prevention starts with correct gasket selection, ensuring flange faces are clean, parallel and have the correct finish, using calibrated torque wrenches in a cross-pattern sequence, and following specific torque values recommended for the gasket type and material.

Question 7

Does Kaxite Sealing offer custom metallic gasket designs?

Accepted Answer

Yes. Kaxite Sealing specializes in engineering custom metallic gasket solutions. We can manufacture gaskets to non-standard sizes, create special profiles for proprietary flanges, combine multiple materials through cladding or plating, and develop solutions for exceptionally high thermal cycling or severe corrosion. Our engineering team works directly with clients to analyze requirements and prototype solutions.

Question 8

What certifications and quality standards do Kaxite Sealing metallic gaskets meet?

Accepted Answer

Kaxite Sealing is committed to the highest quality standards. Our manufacturing processes and products are compliant with ISO 9001:2015 for quality management. Our gaskets meet material and dimensional specifications of ASME, ASTM, API, DIN and EN standards. We provide full material traceability with Mill Test Certificates and Certificates of Conformity. For specific projects we can supply gaskets compliant with NACE, PED 2014/68/EU and various naval and nuclear standards upon request.

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