| Size | DN20-DN150,1"-4" |
| Valve Body Material: | AISI304/AISI316L ,1.4404/1.4301 (Forged) |
| Vale Disc Material: | AISI304/AISI316L ,1.4404/1.4301 (Forged) |
| Seal Material: | EPDM |
| Surface Finishing： | Ra < 0.4-0.8 µm (32 µin) |
| Max Working Pressure: | 145psi(10ba) |
| Helium Leak Test: | <1 × 10⁻⁹ mbar・l/s |
| Cleanliness: | Passivation treatment, Conforms to ASTM A380 standard |
| Operating Principles: | When pipeline pressue is bigger than valve spring pressure, the valve will open, when pipeline pressure is less or equal to the spring pressure, the valve will be closed. |
| Availably standard: | DIN/3A |
| Connection type | Clamp End, Thread End, Weld End，Flange End |
| Certification | US 3-A, FDA, CE PED/2014/68/EC, Certification |
| Application scope: | sansun's Sight Glass is comply with the OCP specification(Open Compute Project specification), Sight Glass for Data center liquid cooling, Sight Glass for Direct-to-Chip (DTC) cooling，Sight Glass for CDU（Coolant Distribution Unit）. |
