Pressure gauge fitting - Riegler K1477

Pressure gauge fitting. This range covers 12 variants from 2.16 EUR. Select the version you need above.

Available variants

Shared technical data

About Pressure gauge fittings

Pressure gauge fittings connect an instrument to the pipework through a cutting ring joint. The group offers female threads from G 1/8 to G 1/2 on the gauge side and tube O.D. 4 to 18 mm on the line side. The fitting takes up the connection and holds it tight, so no sealing work is needed at the gauge itself.

What matters when choosing

• Thread: G 1/8, G 1/4, G 3/8 or G 1/2 female. What counts is the connection stub of the gauge in use, not the pipe size.
• Tube O.D.: 4 to 18 mm. The cutting ring bites onto the outer diameter, so that dimension has to be exact and pipe tolerances should be checked beforehand.
• Material: zinc-plated steel to DIN 2353, nickel-plated brass, or stainless steel 1.4571. Media, pipe material and corrosion load decide, and pipe and fitting should share the same material family.
• Pressure rating: part of the range is specified at max. operating pressure 60 bar, the remaining versions at PN 100 to 630 bar. Design against the value of the individual article.
• Installed size: across-flats dimensions differ with each thread and tube diameter combination, so check wrench access in tight installations.

Typical applications

• Connecting pressure gauges to high pressure hydraulic lines.
• Measuring points in compressed air and oil circuits in machine building.
• Test connections on pumps and power units where a gauge is fitted only temporarily.
• Installations built in stainless tube, where the 1.4571 version avoids a material mismatch.
• Retrofitting or relocating a measuring point during a plant overhaul.

The steel versions are zinc-plated and made to DIN 2353, with nickel-plated brass and stainless steel 1.4571 as alternatives. The 33 articles of this group come from Italy and Germany.