NPT Sights for H2S Service | Encole

NPT Sights for H2S Service

NPT-threaded sight glasses specifically designed for hydrogen sulfide, H2S sour refinery process. These sight windows are designed for continuous operation up to 800 F and 3000 psi in the H2S environment. Connections are standard NPT male fittings. A sapphire window is sealed into the housing with an all-metal seal. This sight glass has a long working life under severe temperature swings.

Encole

Sapphire Sight Glasses NPT-Threaded for H2S Service.

Sapphire Sight Glasses NPT-Threaded for H2S Service.
Specifically designed for Hydrogen Sulfide, H2S service at high temperature, these sight windows are an ideal choice for use in sour refinery process. The C-276 Hastelloy housing has a finish of 32 RMS providing smooth surfaces reducing residues or particle contaminants.A sapphire window is sealed into the housing with an all-metal seal. These sight glasses have a long working life under severe temperature swings. The lifetime is unaffected by thermal or pressure cycling.

Please note: The internal C-seal itself is rated to 27,700 psi pressure at 700 degrees C (1,292 F), this is the critical element of these sight windows.
Aperture Dia Thread Housing Material Max Operating Pressure Max Operating Temp Window Material Mfg.P/N Encole P/N Price
0.770 inch NPT 1 Hastelloy C-276 210 bar 426 C Sapphire 100735 325A1000 $2133.00 each
1.160 inch NPT 1-1/2 Hastelloy C-276 190 bar 426 C Sapphire 100736 325A1001 $2511.00 each
1.660 inch NPT 2 Hastelloy C-276 190 bar 426 C Sapphire 100737 325A1002 $2889.00 each
2.000 inch NPT 2-1/2 Hastelloy C-276 135 bar 426 C Sapphire 100738 325A1003 $3393.00 each
2.420 inch NPT 3 Hastelloy C-276 135 bar 426 C Sapphire 100739 325A1004 $3789.00 each