GASKET, KLNGR C4401, 12.00" 300# RF

APG stocks the 13850RF125B1200FC, a green Klingersil C-4401 Class 300 ring face Flange Gasket with a 12 inch nominal pipe size, a Class 300 pressure rating, and a thickness of 0.125 inch. A flange gasket compresses between two pipe flanges under bolt load to create a leak-tight joint. The catalog record notes: NPS, 0.125 THK.

As a material, Klingersil C-4401 is widely chosen for consistent thickness and density across the sheet, excellent torque retention and low creep relaxation. The material holds up against steam and hot water, elevated flange loads, and hydrocarbons. It should not be specified for service in strong oxidizing acids in some grades or service beyond the published pressure-temperature envelope.

Maintenance and OEM teams specify it across chemical processing, refining, and power generation.

13850RF125B1200FC ships individually. Review your operating media and conditions against this specification before installation.