Which Safety Socket do I need?
Hamilton Safety Sockets have three main options to consider - Stainless steel grade, length, and angle.
Stainless Steel Grade
The stainless steel grade should match the vessel which the socket will be mounted on. Examples of the different grades are provided below.
| Hamilton (DIN) | AISI / SAE | UNS | Other Common Names |
|---|---|---|---|
| Stainless Steel 1.4404 | 316L Stainless | UNS S31603 | SS2348 X2CrNiMo1810 |
| Stainless Steel 1.4435 | 316L Stainless | UNS S31603 | SS2353 X2CrNiMo18143 |
| Stainless Steel 1.4571 | 316Ti Stainless | UNS S31635 | SS2350 X10CrNiMoTi1810 |
Length (or OP)
Finally, the socket length should be selected based on the wall thickness of the tank. A longer socket may be needed if the tank is jacketed. The socket length should also match the O-ring Position (OP) of any existing sensor housings. This ensures proper sealing with no dead space.
Learn more about O-ring Position
Angle
Angled sockets are designed to be welded to the vessel at a 15 degree angle. They are preferred for liquid filled electrochemical sensors such as pH and polarographic DO sensors. The angle ensures that the liquid remains at the tip of the sensor where the measurement occurs.