Pressure is one of the most critical process’ variables and its determination is one of the most frequent in every industrial field. It is therefore extremely important to deal with a wide range of gauges which can grant high precision and steady characteristics, good solidity and resistance to chemical corrosion.

SABA pressure gauges are manufactured with a stainless steel sealed case and the pression sensitive element consists in a stainless steel Bourdon spring. The amplifying clock-work can be either simple or stiffened and is available in stainless steel. The connector is in AISI 316 stainless steel, TIG welded.

Every gauge is supplied, on request, with minimum, maximum or minimum and maximum electrical contacts. The standard gauge can be provided with many different kinds of diaphragm seals according to the different industrial requirement.

The traditional Bourdon spring gauges are not suitable for pressure’ measurement in the food industry. In fact the alimentary fluids could obstruct the sensitive element (Bourdon spring) while entering and deposit themselves on the inside, with subsequent hygienic problems due to the bacterial contamination.

To avoid the above-mentioned problems the gauge must be supplied with a diaphragm seal made of an appropriately shaped diaphragm made of AISI 316 stainless steel. As the gauge and the diaphragm are connected in a whole body, their assembly and disassembly causes no problems. The diaphragm seal has a threaded connector according to the DN-SMS-IDF-CLAMP standards.

It’s fitting to underline that all the SABA pressure gauges with diaphragm seals are damped, so that they can work correctly even in presence of strong pulsations.

The electrical contacts are assembled on the gauge dial. They can be preset on the whole scale (270°) by means of an adjustment knob placed on the front part of the gauge, in the centre of the glass. They have a small adjustable magnet which prevents the sparkling of the electric arc and the resulting wear of the silver contact points.

SABA manufactures these diaphragm seal gauges with different types of connectors. One with a smooth stem with an AISI 316 diaphragm seal of 23,8 mm of diameter. Another one with a rectangular plate. The third with a female nut of 1” ¼ gas and diaphragm seal AISI316.