Sanitary Hygienic Sight Glass 2 4
- Model:
- Brand:
- J&O
- Material:
- SS304 or SS316L
- Connection:
- Welded
- Gasket:
- Silicone, EPDM, Viton, NBR
- Working Temperature:
- 20°C ~ +135°C (EPDM,Silicone)
- Working Pressure:
- 10Bar
- Payment:
- T/T, L/C, Western Union
A sanitary sight glass is a sealed viewing component installed on a process line or vessel to monitor liquid flow, liquid level, foam, or mixing without opening the system. A built-in wiper clears deposits from the viewing area, while an integrated lamp improves visibility inside dim tanks and enclosed equipment.
A hygienic sight glass must match the process medium, cleaning cycle, sealing requirements, and operating conditions. Common construction options include SS304 or SS316L stainless steel bodies, borosilicate glass, and protective covers made from polycarbonate or acrylic. The appropriate configuration depends on the process environment and required viewing conditions.
How the Wiper and Lamp Improve Process Visibility
The wiper allows the viewing surface to be cleared when deposits or condensation obstruct visual inspection. Illumination makes changes in liquid movement and mixing conditions easier to observe. For food, dairy, beverage, and pharmaceutical applications, gasket compatibility and clean-in-place (CIP) requirements should be considered alongside visibility.
| Selection factor | What to confirm | Purpose |
|---|---|---|
| Connection type | Union, welded, or Tri-Clamp specification | Ensures installation compatibility |
| Viewing element | Glass type and protective cover | Matches process conditions |
| Seal material | Silicone, EPDM, Viton, or NBR compatibility | Supports reliable sealing |
| Pressure rating | Approved operating pressure | Prevents operation outside rated limits |
| Lamp and wiper | Power supply, actuation, and installation requirements | Maintains viewing performance |
The listed configuration specifies a pressure range of 1–10 bar and a continuous operating temperature of 20°C to +135°C for EPDM or silicone. Actual limits should be checked against the selected seals, connection, and complete assembly.
Matching 2 Inch and 4 Inch Sight Glass Connections
Searches for “2 sanitary sight glass” generally refer to a 2-inch nominal connection. The tube dimensions, union or clamp standard, and actual bore should be confirmed before ordering because nominal size alone does not guarantee compatibility.
A “4 sanitary sight glass” generally refers to a 4-inch nominal model. The selected unit should match the line dimensions, available installation clearance, and operating pressure. Larger viewing assemblies may also require additional space for wiper operation and maintenance.
Match the Wiper Sight Glass to the Process Setup
A suitable sanitary sight glass should provide clear process observation while meeting the system's sealing, temperature, and pressure requirements. Confirm the dimensional drawing, lamp configuration, wiper design, and applicable technical documents before installation.
Technical Data
| Availably standard | SMS,DIN,3A,IDF,RJT, BS, ISO |
| Material Quality | SS304,SS304L,SS316,SS316L |
| Specification | DN150 |
| Availabe Connection | Welding ends,triclamp ends,union ends,male ends |
| Seal Material | Silicone, EPDM, Viton, NBR |
| Glass | Heavy Wall Borosilicate (Pyrex) Tubing; Polycarbonate (Lexan)Tubing; Acrylic Tubing; etc |
| Protection Lens Cover | Polycarbonate Tubing,Acrylic Tubing or Slotted Stainless Steel |
| Screw Blot | Full Stainless Steel |
| Structure | Straight way,cross |
| Pressure range | 1bar~10bar |
| Machine Processing | The most advanced CNC machine from Japan for processing |
| Continuous working temperature | 20°C ~ +135°C (EPDM,Silicone) |
| Special Design | we can produce according to your drawings |
Product Parameter

Product Pictures


