Clampseal Blowdown Valves From Conval Tools

The valves, available in ¾” through 4” sizes with butt or socket weld and flanged ends, provide necessary control for continuous or tandem boiler or turbine blowdown and bottom blow-off service.

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SOMERS, CT — Clampseal Blowdown Service Valves from Conval provide necessary control for continuous or tandem boiler or turbine blowdown and bottom blow-off service.

For continuous and tandem service, blowdown valves are available in ¾” through 4” sizes with butt or socket weld and flanged ends, in ASME/ANSI Class 900 through 4500. Standard continuous service materials are Low Alloy SA 182-F22, SA-182-F91 or SA-105. Specials are available upon request. Standard tandem service materials are Carbon Steel A105, Low Alloy F22 or F91.

Clampseal blowdown valves are fully serviceable in-line using standard Conval tools. The valves feature a uniform one-piece gland, which eliminates the potential for stem damage from gland cocking. With leak-proof bonnet, the cartridge-style packing chamber allows rapid access to valve trim for inspection and maintenance. The pressure seal fixed backseat provides maximum valve integrity by ensuring a positive internal stop for the valve and stem and disc assembly. This also securely isolates the packing from line pressure when the valves is fully open, to increase packing life.

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