Stoppers 290, ET - Riegler K1812

Stoppers 290, ET. This range covers 10 variants from 0.86 EUR. Select the version you need above.

Available variants

Shared technical data

About Plugs and Caps

Plugs and caps close off unused ports in pipework built from malleable cast iron fittings, either permanently or as a reserve for a later extension. The group covers male threads from R 1/4 to R 3 plus female Rp 1/4 and Rp 3/8. All 39 items belong to the fitting series to DIN EN 10242.

What matters when choosing

• Thread: plugs come with male R threads and screw into a female port, caps have female Rp threads and go over a male end. The point you need to close determines which of the two you order.
• Nominal size: the range runs from R 1/4 to R 3 and has to match the fitting or valve carrying the port.
• Thread standard: ISO 7-1 throughout, which keeps the parts compatible with the rest of the malleable iron programme to the same standard.
• Material: black malleable cast iron B350-10 design symbol A with a hot-dip galvanised surface, suited to mechanically loaded lines.
• Temperature range: the items are rated -20 °C to 300 °C, which also covers steam and hot water lines.

Typical applications

• Closing reserve ports on distributors and header lines
• Sealing test and drain connections after a pressure test
• Blanking off a line after a consumer has been removed
• Pipework in compressed air networks and industrial supply lines
• Keeping common sizes in stock for maintenance modifications

The material is black malleable cast iron B350-10 design symbol A, hot-dip galvanised, to DIN EN 10242 with a surface quality to DIN 2444. The stated operating temperature range is -20 °C to 300 °C.