Block two-line distributors DLDA, DLDC and DLDD are highly resistant to mechanical damage, suitable for severe working conditions. The distributors are available in a several product series. The basic one is distributors of DLDx series with continuous adjustment of lubricant dose and operation signalling by mean of signalling pin. The dose can be doubled by plugging one of the opposite outlets and taking out its distribution screw, multiplication of lubricant dose from outlet is possible by using of connecting bridges. Another product series are represented by DLDx-P distributors without adjustment head, with fixed maximal lubricant dose, DLDx-S distributors with continuous adjustment of lubricant dose and electric operation signalling, DLDx-M distributors with continuous adjustment of lubricant dose with metal cover for higher operating temperatures up to 110°C, and DLCx-N distributors made of stainless steel AISI 303 (1.4305). Distributors of DLDA series are available only in DLDA-P and DLDA-N executions.