Diaphragm for impulse diaphragm valve G 3/4 to G 1, AC/DC - Riegler 205210

Diaphragm for impulse diaphragm valve G 3/4 to G 1, type MV 4211-1, MV 4211-1 G, MV 4212-1, MV 4212-1 G

Technical data

Standards and origin

• Customs tariff number: 84819000
• Country of origin: PL

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.