ZCO O-Ring Face Seal Fittings Hy-Lok ZCO O-ring Face Seal Fittings are designed for quick, easy installation in zero clearance areas. ZCO O-ring Face Seal fittings are suitable for anything from high pressure to vacuum applications, and feature a wide temperature up to 550° F (280° C).
Additional O-ring Face Seal Fitting features include safety leak test ports, machined finishes for leak-free seals, and highly efficient enclosed o-rings. All ZCO Ring Face Seal Fittings have been helium lock tested to a rate of 4x 10-9 std cm3 /s without leakage. O-Ring Face Seal assemblies consist of three basic components: the female nut, the gland, and the body.
ZCO O-Ring Face Seal Fitting Specifications
| Size |
1/4” through 1” |
| Max Working Pressure |
14300 psig (980 bar) |
| Max Temperature |
550° F (280° C) |
| Body, Gland & Nut Alloy |
316 Stainless Steel * |
| Weldable Gland Alloy |
316L Stainless Steel * |
| O-ring Material |
70 Durometer Flurocarbon (Viton) is standard **
90 Durometer Flurocarbon on SAE/MS threads |
| * Optional body, gland, and nut alloys are available upon request |
| ** Optional o-rings include Fluorocarbon, Buna N, TFE, Perfluoroelastomer (Kalrez), and Ethylene Propylene |