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Surge Suppressors by Armaturenfabrik Franz Schneider GmbH + Co. KG

Surge suppressors from Armaturenfabrik Franz Schneider GmbH + Co. KG are specialized protective elements installed in pressure measurement lines to cushion pressure spikes and dynamic loads before they reach a pressure measuring instrument such as a gauge, pressure transmitter or differential pressure sensor. They help extend instrument life, reduce measurement distortion and improve the overall safety of the measurement point.

Surge suppressors are typically used in applications where pressure fluctuations, pulsations or rapid pressure changes occur, such as pump start-ups, valve switching, or rapid control events. By stabilizing the pressure signal, surge suppressors improve measurement reliability and protect sensitive instruments from damage.

Frequently Asked Questions about Surge Suppressors

What is a surge suppressor?

A surge suppressor is a component that absorbs and dampens sudden pressure spikes in a measurement line, preventing these transients from causing damage to the connected instrument.

Where are surge suppressors used?

They are used where rapid pressure changes, pressure pulsations or transient pressure events occur, and protection of measurement devices is required.

How does a surge suppressor work?

Surge suppressors contain internal damping elements that compress or shift under sudden pressure changes, absorbing the kinetic energy of the pressure spike and delivering a smoother pressure signal to the instrument.

What are the advantages of using a surge suppressor?

They increase instrument life, reduce measurement noise and distortion, and protect equipment from sudden pressure stresses.

How is a surge suppressor installed?

Surge suppressors are installed in the measurement line directly before the pressure instrument, with connections matching the process and instrument interfaces.

Which pressure ranges do they cover?

They are available for a wide range of industrial pressure ratings, suitable for both low and high pressure applications.

What materials are commonly used?

Stainless steel, steel and corrosion-resistant alloys are commonly used, combined with appropriate sealing elements for long service life and medium compatibility.

Can surge suppressors handle different media?

Depending on material and seal selection, they can be used with gaseous and liquid media.

Do surge suppressors affect measurement accuracy?

When correctly specified, they improve measurement stability by reducing transient effects without introducing significant measurement lag.

Are surge suppressors maintenance-intensive?

Generally, they are low-maintenance since they lack moving parts that require frequent attention, though periodic inspection is recommended.

Can they be retrofitted?

Yes, surge suppressors can be retrofitted into existing measurement installations if the connections and space allow.

How do they support maintenance?

By protecting instruments from overpressure events and spikes, they reduce repair frequency and minimize system downtime.

How do I select the right surge suppressor?

Consider the maximum process pressure, frequency and intensity of pressure changes, the medium and connection size when selecting a surge suppressor.

What is a protection threshold?

The protection threshold is the level at which the surge suppressor begins to absorb pressure surges and provide damping to protect the instrument.

Can surge suppressors be combined with other protective devices?

Yes, they are often used in combination with overpressure protection devices, isolation valves or test valves for comprehensive measurement point protection.

How does a surge suppressor improve the instrument’s reaction?

By moderating rapid pressure changes, the instrument can respond more smoothly, improving reliability and repeatability of measurements.

Are there variants for different installation orientations?

Yes, various configurations are available to suit vertical, horizontal or compact installation spaces.