ELESA original design 
Fluid sight glasses EN 543.6 are suitable for use in potentially explosive atmospheres. They comply with the European explosion protection directive (ATEX) 2014/34/EU.
A detailed operating instruction is available and included with every fluid sight glass.
The sight glass is embedded in the body during the injection process and is therefore absolutely leak tight.
The seal is embedded in a radial recess, and thus cannot be squeezed out during tightening.
Assembly note:
For wall thicknesses less than 0.16 in (4 mm), use thin hex nuts GN 7430.
Body
Plastic
Technopolymer (Polyamide PA)
Sight glass
Plastic
Crystal clear Polyamide PA-T / AR
Alcohol resistant
Seal
Rubber NBR (Perbunan®)
Reflector
Aluminum
Anodized finish, natural color
RoHS
| A | With reflector |
| B | Without reflector |
| d1 | d2 Pipe thread | d3 | l1 | l2 | s | Recommended tightening torque in Nm |
|---|---|---|---|---|---|---|
| 0.43 | G 3/8 | 0.94 | 0.31 | 0.28 | 0.87 | 4 ... 8 |
| 0.59 | G 1/2 | 1.10 | 0.39 | 0.33 | 0.94 | 6 ... 8 |
| 0.71 | G 3/4 | 1.38 | 0.37 | 0.33 | 1.26 | 8 ... 10 |
| Min | Max | Price |
|---|---|---|
| 1 | 6 | $15.22 |
| 7 | 99 | $14.67 |
| 100 | 249 | $13.84 |
| ≥ 250 | $12.46 |
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