The MMD302, 402 and 502 are fluororesin manual valves that open and close chemical liquid, pure water, air and N₂ gas lines by hand. The body is PFA and PTFE, the diaphragm is PTFE, and they connect to ø10 to ø25 and 3/8" to 1" tubes.
| Model | MMD302 / MMD402 / MMD502 |
| Working Fluid | Chemical liquids / pure water / air / N₂ gas |
| Fluid Temperature | 5 to 90 °C |
| Proof Pressure | 1.2 MPa |
| Working Pressure (A→B) | 0 to 0.4 MPa |
| Working Pressure (B→A) | 0 to 0.4 MPa |
| Valve Seat Leakage | 0 cm³/min (water pressure) |
| Back Pressure | 0 to 0.4 MPa |
| Ambient Operating Temperature | 0 to 60 °C |
| Mounting Orientation | Unrestricted |
| End Connection | Tube O.D. ø10, ø12, 3/8", 1/2" (MMD302), 3/4" (MMD402), ø25, 1" (MMD502) integrated fitting |
| Cv Value | 0.8 to 1.8 (MMD302) / 5 (MMD402) / 8 (MMD502) |
| Material | Body PFA, PTFE, diaphragm PTFE |
| Weight | 0.20 / 0.40 / 0.76 kg |
| Orifice Size | ø6.3 to ø10 (MMD302, depends on connection) / ø14.7 to ø16 (MMD402) / ø20 (MMD502) |