Conval, a global leader in high-performance valves headquartered in Connecticut, offers CLAMPSEAL® blowdown service valves to provide necessary control for continuous or tandem boiler or turbine blow down and bottom blow-off service.
The Conval CLAMPSEAL tandem blowdown valve
For continuous 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 materials are Low Alloy SA 182-F22, SA-182-F91 or SA-105. Specials are available upon request.
For 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 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 valve is fully open, to increase packing life.
Conval, Connecticut-based provider of Severe Service Valves, recently published a new full-colour brochure on in-line renewable Clampseal® API-602 Globe Valves for onshore and offshore drilling and production, refining, heavy oil and sour gas applications.
When it comes to valves, the issue of high tightness to environment is becoming more and more important. Nowhere is this more true than in the case of future gas applications in growing sectors – such as new gas transportation concepts that involve hydrogen, or the use of helium in ...
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