LAD is a diaphragm valve opened and closed by pilot air. NC, NO and double acting types are available, handling pure water, water, air and nitrogen gas. Ports are Rc3/8, Rc1/2, Rc3/4 and Rc1. The body is PPS or stainless steel casting (SCS13), and the diaphragm is PTFE or EPDM.
| Working Fluid (PTFE diaphragm) | Water, pure water, air, nitrogen gas, non-corrosive and non-absorbable fluids |
| Working Fluid (EPDM diaphragm) | Water, air, nitrogen gas, non-corrosive and non-absorbable fluids |
| Actuation | NC, NO, double acting (LAD1 / LAD2 / LAD3) |
| Fluid Temperature | PTFE: 5 to 90 °C (5 to 100 °C for stainless steel body), EPDM: 0 to 60 °C (no freezing) |
| Working Pressure (A to B) | PTFE: 0 to 0.3 MPa, EPDM: 0 to 0.5 MPa (0.4 MPa for Rc3/4 and Rc1) |
| Proof Pressure | PTFE: 0.9 MPa, EPDM: 1.5 MPa (1.2 MPa for Rc3/4 and Rc1) (water pressure) |
| Back Pressure | 0 to 0.1 MPa |
| Valve Seat Leakage | PTFE: 0 (water pressure), 1 cm³/min or less (pneumatic pressure) / EPDM: 0 (water pressure), 0.12 cm³/min or less (pneumatic pressure) |
| Ambient Temperature | 0 to 60 °C |
| Pilot Pressure | 0.3 to 0.5 MPa (0.3 to 0.4 MPa for double acting) |
| Pilot Port Size | Rc1/8 |
| Specifications by Model | LAD*-10A: Rc3/8, orifice 8 mm, Cv 1.7, 30 cycles/min or less, 0.15 kg (PPS) / 0.3 kg (SCS13) | LAD*-15A: Rc1/2, 12 mm, Cv 3.3, 20 cycles/min or less, 0.28 / 0.6 kg | LAD*-20A: Rc3/4, 20 mm, Cv 8.5, 20 cycles/min or less, 0.55 / 1.1 kg | LAD*-25A: Rc1, 20 mm, Cv 8.5, 20 cycles/min or less, 0.60 / 1.2 kg |
| Body / Diaphragm Combination | PPS / EPDM, PPS / PTFE, SCS13 / EPDM, SCS13 / PTFE |
| Mounting Orientation | Unrestricted |