Sight Glasses
Staitech HSG02, HSG03 and HSG04 sight glasses – a range of sight glasses designed specifically for high purity applications in the pharmaceutical industry.
The Staitech sight glass range comprises three models, all of which share a number of common design features:
Features of the HSG range include:
- 316L stainless steel construction
- Toughened Borosilicate glass
- 10 barg pressure rating
- ASME BPE DIN and ISO size options
- Available in low ferrite/low sulphur materials
- Wetted surfaces finished to 0.5 microns Ra
- Electropolished finish option
- EN 10204:2004 3.1 Full component traceability
- FDA and USP Class VI compliant body seal
HSG01
The HSG01 range of sight glasses are designed to fit directly onto ASME BPE clamp fittings using a conventional seal and clamp. The unique fused glass and stainless steel construction provides a strong and resilient solution for sight glass applications in a wide range of services. Where illumination is required, a version is available with a back light.
| Size Range | 1-1/2″ – 4″ ASME BPE compliant clamp connections |
| Material | 316L stainless steel |
| Pressure Rating | 1-1/2″, 2″ & 2-1/2″ – 16 barg 3″ & 4″ – 10 barg |
| Options | Disc design with borosilicate or soda lime window C22 alloy glass surround The HSG01 can be used on Staitech’s range of Tank Weld Flanges Back lit version available for use on vessels and crosses |
| Literature |
HSG02
Designed for application where through vision is required, HSG02 sight glasses comprise of 316L stainless steel body with toughened borosilicate glass lens and a range of FDA and USP Class VI compliant seals. All units have clamp ends, are rated to 10 barg with wetted surfaces finished to 0.5 microns Ra.
| Size Range | 1/2″ – 4″ ASME BPE compliant clamp connections |
| Material | 316L stainless steel |
| Pressure Rating | 10 barg |
| Options | DN8 – DN50 DIN & ISO clamp connections Polycarbonate knock shield Low ferrite stainless steel and other alloys Several seal options available Enhanced surface finish and electropolishing |
| Literature |
HSG03
Similar in design to the HSG02, the HSG03 is also intended for applications where through vision is required. Being of bolted construction the HSG03 can be used in applications where twisting within the piping system may be possible. The HSG03 range of sight glasses are available with both clamp and weld end connections.
| Size Range | 1/2″ – 4″ ASME BPE compliant clamp & weld connections DN8 – DN50 DIN, ISO clamp & weld connections |
| Material | 316L stainless steel |
| Pressure Rating | 10 barg |
| Options | Polycarbonate knock shield Low ferrite stainless steel and other alloys Several seal options available Enhanced surface finish and electropolishing |
| Literature |
HSG04
The HSG04 has an unobstructed viewing aperture allowing through vision from any angle. Wetted parts are 316L stainless steel with toughened borosilicate glass viewing lens and a range of FDA and USP Class VI compliant seals. Alternative lengths are also available with this design.
| Size Range | 1/2″ – 4″ ASME BPE compliant clamp & weld connections DN8 – DN50 DIN, ISO clamp & weld connections |
| Material | 316L stainless steel |
| Pressure Rating | 10 barg |
| Options | Polycarbonate knock shield Low ferrite stainless steel and other alloys Threaded connections Several seal options available Enhanced surface finish and electropolishing |
| Literature |
HSG05
The HSG05 is a tubular design allowing through vision from any angle and is available with either DIN or ASNI flanged connections.
| Size Range | 1/2″ – 4″ DIN & ANSI flanged connections |
| Material | 316L stainless steel |
| Pressure Rating | 10 barg |
| Options | Polycarbonate knock shield Other materials available Several seal options available Alternative lengths |
| Literature |
Single and Double Window Sight Glasses
A range of single and double window sight glasses for general purpose applications. Available in a wide range of sizes and pressure ratings, with DIN and ANSI flanged connections.
| Size Range | 1/2″ – 8″ DIN & ANSI flanged connections 1/2″ – 2″ screwed connections |
| Material | 316L stainless steel |
| Pressure Rating | Up to 40 barg |
| Options | Borosilicate and Sodalime glass PTFE seals Flow indicator (spinner) |
| Literature |