LGD10 and LGD20 are manual valves with a metal diaphragm for inert gas and process gas, opened and closed by a 180° rotation of the handle. LGD10 has 1/4" connections, and LGD20 has 3/8" and 1/2" connections.
| Working Fluid | Inert gas / process gas |
| Working Pressure | 1.3×10⁻⁸ Pa(abs) to 0.99 MPa(G) |
| Fluid Temperature | 5 to 80 °C |
| Ambient Temperature | 5 to 60 °C |
| Valve Seat Leakage | 1.0×10⁻¹⁰ Pa·m³/sec He or less |
| External Leakage | 1.0×10⁻¹⁰ Pa·m³/sec He or less |
| Cv (23 °C under pressurization) | LGD10: 0.3; LGD20: 0.7 |
| Connection | LGD10: 1/4" JXR male fitting or equiv. (4RM) / 1/4" JXR female fitting or equiv. (4R) / 1/4" double barbed fitting (4S); LGD20: 1/2" JXR male fitting or equiv. (3/8" compatible) (8RM) / 1/2" JXR female fitting or equiv. (3/8" compatible) (8R) / 3/8" double barbed fitting (6S) / 1/2" double barbed fitting (8S) (JXR fitting can be connected to VCR fitting) |
| Operation | Manual, 180° handle rotation |
| Weight (with JXR male fitting or equiv.) | LGD10: 0.26 kg; LGD20: 0.57 kg |
| Gas Contact Part Materials | Diaphragm: Ni-Co alloy; valve seat: PCTFE; body: SUS316L |