| 摘要 |
The thermally-insulating casing for valves and/or flanged connections comprises two halves which include openings for pipes and as appropriate, valve actuation. The halves are detachable at a plane of separation. They have interlocking, peripheral, tongue-and-groove connections. These preferably centre and attach the halves. The halves are fire-resistant polyurethane foam, formed by reaction injection moulding (RIM). At the periphery, butting edges are sealed. Preferably during moulding, the halves are given an internal reflective coating comprising a polyurethane paint, applied by in-mould coating (IMC).
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