The NEW MEGA-ONE LA is a pneumatically actuated diaphragm valves for ultra-pure, flammable or toxic fluid-lines for all type of semiconductor equipment and facilities. The direct diaphragm construction makes the NEW MEGA-ONE LA an industry standard valve with superior performance, remarkable durability and compactness while being particle-free and dead-space free. This valve has the same performance as the MEGA-ONE LA, but is more compact and durable.