L272-CS-Flanged Cast Steel Gate valve Class 150

L272-CS-150 Series

ANSI Class 150 Cast Steel Gate Valve

• Class 150, Flanged ends, bolted bonnet, WCB body & bonnet, 13Cr/HF trim.
• Flange dimensions: ANSI B16.5
• Buttweld end dimensions: ANSI B16.25
• Face-to-Face dimensions: ANSI B16.10
• Testing: API 598
• Design: API 600

Cast steel gate valves like the L272-CS Class 150 are workhorse isolation valves used throughout the power generation, oil and gas, chemical processing, refining, and water utility industries. The full-port design provides minimal flow restriction when open, making gate valves the preferred choice for on/off service where unimpeded flow is critical — not for throttling applications, where globe valves are the appropriate selection because of their cavitation resistance and finer flow control characteristics.

Flanged ends conform to ANSI B16.5 dimensional standards and are compatible with Class 150 raised-face flanges from any standards-compliant manufacturer. WCB carbon steel construction combined with 13Cr stainless trim provides solid service life in moderate-temperature applications with non-corrosive process media — typically rated up to 285 psi at 100°F per ANSI B16.34, derating with rising temperature. The bolted-bonnet design supports in-line maintenance of the stem, disc, seat, and packing without removing the valve from the pipeline. API 600 design conformance and API 598 pressure-testing standards ensure dimensional and quality consistency.