Prop. prec. regulator »SYNTRONIC«, size 1, G1/8, display, 4…20 mA - Riegler 146647

Proportional prec. pressure regulator »SYNTRONIC«, size 1, G 1/8, display, 4…20 mA, p1 = max. 11 bar, p2= 0,2…10 bar, T = 0…50 °C The proportional regulators in the SYNTRONIC series are used to precisely control the pressure in a system, with varying values depending on the input command. The regulators can be controlled remotely via a cable connection and an M12x1 connector accepting commands in Volts or mA. Pressure is controlled in a 'closed loop' via a precision electronic sensor that detects the downstream pressure value, a control system that matches it to the desired pressure and two miniature solenoid valves that adjust the pressure to the target value. Advantages: - The connection sockets can be easily replaced, as with other products in the »SYNTESI« series. - The presence of two rolling diaphragms offers several advantages, including increased stroke, which provides greater valve opening and consequently increased flow rate, thereby reducing dynamic and inrush friction. - Syntronic is designed in such a way as to cause the downstream pressure to be relieved when the upstream pressure is set to zero. - It is ideally suited for use between a valve and a cylinder because air can flow in both directions, towards the cylinder with regulated pressure and back to the relieving valve. - The version with display can show a wide range of information and diagnostics. The user interface with the display and LEDs is entirely on one side.

Standards and origin

• Customs tariff number: 84811099
• Country of origin: IT

About Pressure regulators

Pressure regulators hold the outlet pressure steady even when inlet pressure varies or consumption changes. The range covers control ranges starting between 0 and 5 bar and ending between 1 and 200 bar, with inlet pressures up to 60 bar. Ports run from G 1/8 to G 2.

What matters when choosing

• Control range: lower limits sit between 0 and 5 bar, upper limits between 1 and 200 bar. Keep the working pressure inside the range rather than at its edge.
• Flow rate from 1000 to 50000 l/min: the regulator has to cover peak demand, otherwise secondary pressure drops away on every load peak.
• Medium: besides compressed air and neutral gases there are versions for drinking water, nitrogen and argon, plus variants for ultra-fine filtered oil-free air down to 0.01 µm.
• Body material: aluminium, aluminium die-cast, brass, zinc die-cast, technopolymer, PA66 GF60, stainless steel 1.4404 (AISI 316L) and gunmetal in the Rg5, CC499K and 2.1096.01 grades.
• Series: alongside the mechanical FUTURA, SYNTESI, multifix, variobloc, inline and Standard lines, the electronically controlled REGTRONIC 300 and 400 series handle setpoint-driven applications.

Typical applications

• Holding a steady working pressure at machines and air tools
• Reducing mains pressure to the level required by individual sub-circuits
• Setpoint-driven pressure control on test rigs using the electronic versions
• Pressure reduction in drinking water lines
• Feeding test and measuring rigs with nitrogen or argon

Sealing materials include NBR, FKM, FPM, EPDM, SBR, PU, HNBR and TPU depending on the series. 102 items are rated to protection class IP 65.