Progressive starter »SYNTESI«, electric, size 2, without bushings - Riegler 144925

Progressive starter »SYNTESI«, electric, size 2, w/o bushings, p1 = 3 … 10 bar, T = -10 … 50 °C, w/o coil/connector/silencer The progressive starter is a pneumatic component that allows air enter the circuit gradually, thereby avoiding excessive pressure bursts. A sophisticated system of internal valves allows two separate stages of operation. During the first stage, a quantity of air that can be regulated via a pin flows from the progressive starter. The second stage starts when the downstream pressure reached 40 to 60% of the upstream pressure, during which full-port flow is achieved. When the mechanism is deactivated, the air flow is cut off and the downstream circuit is relieved. The progressive starter is particularly useful on machinery where it is important to prevent actuators from moving rapidly and out of control, or where, for safety reasons, the air in-feed needs to be gentle and gradual. It, however, there is a major leak in the downstream system, it may never be possible to achieve the pressure required to open the valve completely. On the front and back there is a port (G 1/8 for size 1 and G 1/4 for size 2) that can be used with pressure gauges, pressure switches or as an additional air outlet. Coil, plug and silencer not included in delivery! ATEX version on request!

Technical data

Standards and origin

• Customs tariff number: 84812090
• Country of origin: IT

About System extensions

System extensions add functions to an existing air preparation unit that filters and regulators do not cover, for example an electrically actuated switching valve that turns plant sections on and off and exhausts them when switched off. The 233 items cover threads from G 1/8 to G 1 and run on an inlet pressure of 9 to 16 bar maximum.

What matters when choosing

• Frame size and thread have to match the existing unit. The range documents G 1/8 to G 1 plus size designations from 0 to 600.
• The series decides whether a module can be added to the assembly. Available lines include FUTURA and FUTURA-mini, SYNTESI, multifix and multifix-mini, variobloc as well as G, G-mini and GA-mini. A module only fits the line it was designed for.
• Choose flow rate from the air demand of the installation rather than from the thread alone. Documented values run from 1400 to 18000 l/min.
• Compare the maximum inlet pressure of 9 to 16 bar against your line pressure. Individual modules are rated for an operating pressure of up to 25 bar.
• Select the housing to suit the environment and the mechanical load. Documented materials are PA66 GF60 and technopolymer, die-cast aluminium and zinc, aluminium and nickel-plated brass.

Typical applications

• Switching plant sections on and off from an electrical signal, with simultaneous exhaust
• Extending existing air preparation units in compressed air distribution
• Making machines pressure-free while they are at standstill
• Distribution points on production lines with several consumers
• Installations that carry neutral gases alongside compressed air

Documented data include protection class IP 65 or IP 65 (P 54) to DIN 40050, NBR seals and medium temperatures from -10 °C to 60 or 70 °C depending on the module. Production takes place in Germany, Italy, Poland and China.