WHEATLEY
Series 822

Overview

The Cameron WHEATLEY Series 822 check valve is designed to safely prevent backflow of liquid or gas in pipeline applications. The valve’s beveled, self-aligning clapper and seat design incorporates a molded seal in the clapper for a bubble-tight primary seal and a metal-to-metal secondary seal.

Standard Features

• Designed in accordance with ASME B16.34 (WCC, LCC, and CF8M only)
• Materials of construction conform to NACE MR0175/ISO 15156
• Solid 316 stainless steel clapper and hanger reduce the need for separate pins, bushings, and rollers
• Compact valve geometry reduces weight and space
• Peroxide-cured Buna-N seals (FKM and HNBR optional)
• Generous wrench area on body and hex-head threaded cover for easier installation and maintenance
• Full opening
• Suitable for horizontal or vertical flow-up
• Below-the-threads cover seal isolates the cover threads from line media

Applications & Benefits

The self-aligning clapper with a molded primary seal and metal-to-metal secondary seal gives bubble-tight backflow protection on liquid or gas pipelines, and the solid 316 stainless clapper and hanger cut the wear parts that fail on conventional checks. Compact, full-opening geometry saves weight and space and minimizes flow restriction, while ASME B16.34 design and NACE MR0175/ISO 15156 materials support pipeline and process service, including sour environments, in horizontal or vertical flow-up orientations.