High performance butterfly valves, high temperature valve, Xomox

High Temperature High Performance Butterfly Valves
Features and Benefits

High Temperature sealing

The PEEK seat (HT2) provides superior three-point, bidirectional sealing when operating temperatures will not exceed 575°F. The PEEK seat in valves up to 24 inches meets ANSI/FCI-70-2 Class V leakage specifications. The all-metal seat (HT1) operates up to 1000°F.

Pressure assisted sealing

Like the soft seats, these seats are axially pliant. In the closed position, flow in either direction tightens the seat against the disc.

PEEK seat -- (HT2)(Polyetheretherketone)For temperatures up to 575°F.

All metal seat (HT1) --
Two-point, pressure-assisted sealing
for temperatures up to 1000°F.

	Valve closed, with pressure into disc face. The seat forms a metal-to-metal seal with the disc. As line pressure increases, the seal tightens.
	Valve closed, with pressure into hub side of disc. As pressure increases, a flexure notch in the metal stem portion of the seat allows the seat to shift axially in the direction of the flow. This tightens the seat contact with the disc for pressure assisted sealing

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