SPI Sight Glasses
Sight glasses from Stainless Products (SPI) are engineered for hygienic processing industries and are offered in three options which allow processes to be monitored visually without exposure to the outside elements. Inline and cross type sight glasses are useful for tracking color or consistency when transferring product. Tank glasses allow for fermentation or other processes to be monitored in the midst of operation. They are often installed as a semi-permanent fixture on a variety of tanks.
All SPI sight glasses are 3-A certified and come apart for easy cleaning.
Established in 1972 as a polishing company for the food and dairy industry, Stainless Products (SPI) has evolved into a full-line manufacturer of fittings, valves, pumps, and accessories for all sanitary process industries.
Standard Features
- Tri-Clamp® end connections
- Borosilicate (Pyrex®) viewport
- Temperature and pressure ratings limited to gasket and clamp union selection
Options
- Acrylic viewport - SP56 only
- Weld, bevel seat, I-line, John Perry
- MTR
SP56
Full 360° view of process media. Well suited for vertical and horizontal mounting. When mounting in a horizontal position no mechanical force should be exerted on the glass. Viton® elastomer included.
| Size
(in) | A (3 in. Glass) | A (6 in. Glass) |
|---|---|---|
| 1½ | 6.50 | 9.50 |
| 2 | 6.50 | 9.50 |
| 2½ | 6.50 | 9.50 |
| 3 | 6.50 | 9.50 |
SP54
Cross style sight glass that provides a view inside of the production flow. Elastomer options include: Viton®, Buna, EPDM, and PTFE.
| Size (in) | A (in) | B (in) |
|---|---|---|
| 1½ | 4.50 | 5.50 |
| 2 | 4.75 | 7.00 |
| 2½ | 5.25 | 7.00 |
| 3 | 5.75 | 7.50 |
| 4 | 7.25 | 9.00 |
SP54SW
Compact unit with easy disassembly. Commonly used in vessels. Elastomer options include: Viton®, Buna, EPDM, and PTFE.
| Size (in) | A (in) |
|---|---|
| 1½ | 1.25 |
| 2 | 1.25 |
| 2½ | 1.25 |
| 3 | 1.25 |
| 4 | 1.25 |
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