Pre-insulated valves for fluid system

A pre-insulated valve for a fluid system, the pre-insulated valve comprising:

• a valve body having a plurality of lugs on an outer surface of the valve body, each lug of the plurality of lugs comprising a cylindrical or bulged structure having a hole at a center of the cylindrical or bulged structure, the hole accommodating a fastener member for fastening the valve body with a flange member of a fluid pipe,
• a disc member enclosed inside the valve body, the disc member connected to a valve stem operable to open and close the disc member to control flow through the valve body,
• a first insulating layer made of a low density polymer, the first insulating layer comprising an inner surface being adapted to cover an entire outer surface of the plurality of lugs of the valve body and an entire outer surface of the valve body such that the first insulating layer is in physical contact with the entire outer surface of the valve body including the entire outer surface of the plurality of lugs, and
• a second insulating layer made of a high density polymer, the second insulating layer comprising an inner surface in physical contact with an entire outer surface of the first insulating layer,
• wherein the first insulating layer has a relatively larger thickness when compared with a thickness of the second insulating, and
• wherein the hole in each of the lugs and the fastener members remains accessible with the first insulating layer and the second insulating layer in place.