NPT-Threaded Sight Glass for H2S Service, NPT 1-1/2
NPT-Threaded Sight Glass for H2S Service, NPT 1-1/2


NPT-Threaded Sight Glass for H2S Service, NPT 1-1/2

Specifically designed for Hydrogen Sulfide, H2S service at high temperature, this sight window is 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. This sight glass has 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 this sight window. Because the seal is made to the highest standards of quality with all critical features closely controlled, the manufacturing lead time of this sight window is long. Contact us for reduced lead times and volume discounts.

Aperture Dia
1.160 inch
Housing Material
Hastelloy C-276
Max Operating Pressure
190 bar
Max Operating Temp
426 C
Window Material
NPT 1-1/2
Part number: 325A1001
Manufacturer's part number:
Price: $ 2511.00

NPT-Threaded Sight Glass for H2S Service, NPT 1-1/2
Encole Part No.:
Manufacturer's Part No.:

Encole LLC

San Jose, CA
Tel.: (408) 514-5838
The information in this Drawing and 3-D models is provided for reference only. Details
Product Drawings and CAD Models Disclaimer

The GD&T and parameter information in the catalog is for reference only. Manufacturing processes and resulting tolerances may result in variations in the specifications provided. Many manufacturers consider their tolerances proprietary and do not provide this to Encole. While we believe the information to be generally correct, it is subject to change without notice and is not guaranteed. Drawings and CAD models are prepared by the Original Manufacturers, CAD expert community contibuting to Encole or staff at Encole.