3/2-way solenoid valve, NC, G 1/4, PN 0-10, NBR, 12V DC - Riegler 125805

Media-separated 3/2-way solenoid valve, NC, brass, G 1/4, PN 0-10, direct. opera., 12V DC, med.temp. 0 to 80, amb.temp. 0 to 55 Media-separated solenoid valves are an important component in the control of fluids in systems. With these direct or pilot operated values only the fluid housing and the separating diaphragm come into contact with the medium. Thus, these valves can withstand many different media (see resistance chart). In addition, the brass housing meets all the conventional potable water requirements. The direct controlled valve in the 3/2-way design can be used either as a mixing valve or for any desired flow direction. The pilot operated valve is normally closed in the basic position. By simply turning the 3/2-way pilot valve, the basic position can be changed to normally open.

Standards and origin

• Customs tariff number: 84818079
• Country of origin: DE

About Solenoid valves

Solenoid valves switch a media flow electrically, with no manual intervention at the line. The range covers nominal sizes from DN 1 to DN 66 and operating pressures up to 50 bar, with ports from G 1/8 to G 2. Some versions work from -1 bar upwards, which makes them suitable for vacuum duty.

What matters when choosing

• Function: normally closed (NC), normally open (NO) or any flow direction (BEL). What matters is the state the plant should assume when power is lost.
• Voltage: 12 V DC, 24 V DC, 24 V AC, 110 V AC and 230 V AC, plus 24 V AC/DC and 230 V AC/DC versions. Follow whatever the existing control system supplies.
• Sealing material NBR, FKM, FPM, EPDM, PTFE or FFKM: match the elastomer to the medium and to the media temperature, which runs between -30 and 160 °C depending on version.
• Body material: brass, aluminium, polyamide, glass-fibre reinforced polyamide, polypropylene or stainless steel 1.4301, 1.4401 and 1.4581. Stainless steel is the choice for corrosive media and demanding wash-down regimes.
• Nominal size DN 1 to 66 mm and operating pressure: upper limits run from 1 to 50 bar, and nominal size sets the achievable flow.

Typical applications

• Shutting off and releasing compressed air in machines and plant
• Cleaning fabric filters in dust collection systems using pulse diaphragm valves
• Switching duties in cooling and heating water circuits
• Dosing and filling stations handling thin, neutral media
• Vacuum applications with operating pressures from -1 bar

Threads are made to DIN EN ISO 228-1 or ISO 7-1. Protection class IP 65 or IP 67 is reached with the connector socket correctly fitted.