METAL JACKETED & SOFT FACED
METAL GASKETS
METAL GASKETS
Metal jacketed gaskets consist of a partial or full metal envelope, covering a soft
pliable core. The sealing filler provides good resilience to aid sealing, while the metal
jacket offers the suitable strength required for higher pressure applications,
fluctuating temperatures and protection from corrosion of the core. Metal jacketed
gaskets offer a relatively economical seal where sealing faces are narrow; they can be
produced in a variety of shapes, making them a good option for heat exchangers with good,
even flange surface finish (maximum 1.6um). As well as Heat
Exchangers metal jacketed gaskets are used in Vessels,
Valve Bonnets, Pumps, Autoclaves, Engines and Exhaust Systems.
Metal jacketed heat exchanger gaskets often consist of a sealing outer ring with integral
partition bars; SEP recommend (where possible) that the outer ring seals independently,
with any partition bars welded in position and not fabricated in one piece. Typical heat
exchangerconfigurations are generally 3mm thick.
| Soft Materials | Filler Materials | |||
| Soft Iron | Aluminium | Titanium | Nickel | PTFE |
| Copper | Stainless Steel | Inconel | Hastelloy | Millboard |
| Brass | Monel | Incoloy | Graphite |
Soft faced metal gaskets are an alternative to metal jacketed is for softer, conforming sealing layers applied to the faces or corrugated gasket upgrades may be considered, the cost may not be necessary or machining/corrugating large rectangular shaped gaskets is impractical.
The cores are reusable after service, if appropriately
cleaned, inspected and re-faced with new sealing material.
A typical gasket would be 3mm stainless steel, faced both sides with 0.5mm graphite.
