Can the Manometric reduction nipple, brass, type RDN be used with aggressive media or only for non-aggressive liquids and gases?

The Manometric reduction nipple, brass, type RDN is specified as designed for non-aggressive liquids and gases. Made of brass and featuring a self-sealing cone connection, it is intended for installation of pressure gauges, taps, and pressure valves where the media are non-corrosive. Brass can be attacked by certain aggressive media (strong acids, halides, ammonia, some sour gases and chloride-containing environments), so the RDN should not be used with aggressive chemicals unless compatibility is confirmed by materials testing or manufacturer approval. For aggressive media, select a nipple made of a corrosion-resistant material (e.g., stainless steel or a chemically resistant alloy) or consult the manufacturer for a suitable alternative.

Is the Manometric reduction nipple, brass, type RDN suitable for use with aggressive media or only non-aggressive liquids and gases?

Manometric reduction nipple, brass, type RDN is designed for non-aggressive liquids and gases. Made of brass with a self-sealing EN 837-1 pressure connection and adhesive-secured threads, it is intended for installation of pressure gauges, taps, valves and similar accessories. It is not specified for use with aggressive media.

Does the Manometric reduction nipple, brass, type RDN require special sealing for aggressive media?

No. The Manometric reduction nipple, brass, type RDN does not require additional special sealing for standard use because its internal thread d1 is designed to be self-sealing: the cone at the bottom of hole d1 presses into the centering plug of the pressure gauge connection to form the seal. However, note these important limitations: the product is specified for nonâaggressive liquids and gases only, and threads d1 and d2 are fixed with a special adhesive to prevent loosening. For aggressive media, brass may be chemically attacked and the standard selfâsealing cone/plug interface or adhesive may fail; therefore special sealing materials, corrosionâresistant materials, or alternative fittings rated for aggressive media should be used. If you plan to use aggressive media, consult the manufacturer or choose a nipple/fitting and sealing method specifically certified for that media.

Reducer pressure-gauge nipple, brass, type RDN

All products, Manometers, reducers, and valves/

Additional information

Material	B – brass (bronze)
Standard length [m]	10

Nipple with a thread internal and a thread external, for pressure gauge of standard connections pressure-gauge according to EN 837-1. allows assembly pressure gauge for socket o greater size. pressure gauge mounted for thread internal d1. connection to has character self-sealing – cone on bottom hole d1 presses in hole plug centring the connection pressure gauge. threads d1 and d2 are protected against unscrewing connections through applied special adhesive. intended for liquids and gases non-aggressive, for mounting pressure gauge, cocks and valves pressure-gauge and other accessories equipped in ten type the connection. Material: brass.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
FM-RDN-04B-06B	Reducer pressure gauge nyplowa 1/4" BSP female / 3/8" BSP male, brass	-	-	In stock	Enquiry
FM-RDN-04B-06N	Reducer pressure gauge nyplowa 1/4" BSP female / 3/8" NPT male, brass	-	-	In stock	Enquiry
FM-RDN-04B-08B	Reducer pressure gauge nyplowa 1/4" BSP female / 1/2" BSP male, brass	-	-	In stock	Enquiry
FM-RDN-04B-08N	Reducer pressure gauge nyplowa 1/4" BSP female / 1/2" NPT male, brass	-	-	In stock	Enquiry
FM-RDN-04B-M20	Reducer pressure gauge nyplowa 1/4" BSP female / M20x1.5 male, brass	-	-	In stock	Enquiry

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Nipple with a thread internal and a thread external, for pressure gauge of standard connections pressure-gauge according to EN 837-1. allows assembly pressure gauge for socket o greater size. pressure gauge mounted for thread internal d1. connection to has character self-sealing – cone on bottom hole d1 presses in hole plug centring the connection pressure gauge. threads d1 and d2 are protected against unscrewing connections through applied special adhesive. intended for liquids and gases non-aggressive, for mounting pressure gauge, cocks and valves pressure-gauge and other accessories equipped in ten type the connection. Material: brass.