Pressure Monitoring &Transmission Technology

Hydrogen solutions from SUCO and ESI
Pressure switches and pressure transmitter for hydrogen applications.

Companies of the SUCO GroupSUCO Hydrogen Pressure Switches
and Pressure Transmitter
Hydrogen is one of the most important alternative energy sources of the future
and will continue to grow in importance. A versatile energy source that can beused for the generation of electricity, heat and fuels.
SUCO pressure switches and pressure transmitters reliably
and safely monitor the pressure e.g. in hydrogen electrolysis,in compressors, in high pressure storage tanks and gas cylinders,in pipelines, in vehicle technology, on fuel cells or hydrogen engines, in valve technology and in the equipment of H2 filling
stations and H2 tanker vehicles, … and many more.

many years for pressure monitoring of hydrogen and oxygen.
We have used the experience gained and the requirements of ourcustomers to develop new pressure transmitters and mechanicalpressure switches especially for hydrogen. High pressure ranges
up to 5000 bar, explosion protection according to ATEX, hydrogencompatible sensors made of titanium and housings made of 316L
are some innovations that have been incorporated in these series.

Pressure switches and pressure transmitters of the SUCO groupof companies with the brands SUCO and ESI have been used for

Mechanical Pressure Switches
SUCO has been manufacturing mechanical pressure switches
for liquids and gaseous media for many decades. Also the usewith hydrogen has a long tradition with us. Mechanical pressure
switches are always used when reliable and robust, but costeffective monitoring of pressures is required, whether to monitor
the minimum pressure in lines or gas cylinders, or to close safetyvalves or shut down compressors if maximum pressures areexceeded. Our modular pressure switch system allows anenormous variety of variants. Especially when used in series

products, this allows us to adapt our pressure switches to yourrequirements.

0H64/0H690H83

Normally closed (NC)
Normally opened (NO)0,1 bar bis 150 bar
Up to 600 bar overpressure
safetyEPDM diaphragm or sealing
ring SAE 316L grade
stainless steel housing

0H86/0H87
Changeover (CO)0,5 bar to 200 bar
Up to 700 bar overpressure
safetyEPDM diaphragm or sealing
ring SAE 316L grade
stainless steel housing

Optionally available ATEX / IECEX certifications, IP6K9K, a highoverpressure safety and an extremely robust design, which canalso be used under strong vibrations or unfavorable environmental
conditions, enable a long service life and safe monitoring of yourlimit pressures.

Changeover (CO)100 bar to 400 bar
Up to 600 bar overpressure
safetyEPDM sealing ring
SAE 316L grade stainless 		
steel housing

0H44/0H45
Changeover (CO)0,3 bar to 150 bar
Up to 300/600 bar
overpressure safety
EPDM diaphragm or sealing
ring SAE 316L grade
stainless steel housing
ATEX / IECEx certificationg

Pressure Transducer and Sensors
The ESI hydrogen pressure transmitters are turned from a special
titanium alloy for the measuring cell and the wetted parts froma titanium block. Thus the sensor is manufactured without seals,
high pressure cells from 1000 bar we even manufacture without
welding seams, which helps to avoid any weak points especially forthe use with hydrogen. This material has successfully passed thehydrogen compatibility test according to ISO1114-2:2017 in accordance with the European regulations EC 79/2009 and EU 406/2010.
The combination of titanium sensing elements with SoS sensors
has a long tradition at ESI, this material choice allows the construction of a long term stable sensor that has a high accuracy.

GS4200H
0 bar to 1.500 bar
Up to 4 x overpressure
safetyTitanium alloy SoS pressure
sensorOptional certification acc.
to ATEX & DNV-GL
Very high corrosion
resistance

GD4200HUSB-1 bar to 5.000 bar
Up to 2 x overpressure
safetytitanium alloy SoS pressure
sensorESI-USB software with1,000 Hz sampling rate
Highest precision andaccuracy ±0.15% BFSLOur measurement ranges up to 5000 bar make this transmitterthe preferred choice for use on hydrogen storage tanks andpipelines. But we also offer the same technology for low pressuresand also in vacuum measurement applications. We are convincedthat ESI pressure transmitters are the right choice for use withhydrogen.
With optional Atex approvals, marine approvals and a wide rangeof different analog and digital signals – up to USB connection –ESI offers a broad portfolio that is unique in the field of hydrogenpressure measurement technology.

HP1000H
0 bar to 5.000 bar
Up to 1,5 x overpressure 		safetyTitanium alloy SoS pressure
sensorOptional certification acc.
to ATEX & DNV-GL
High resistance topressure peaks

HI2000H
0 bar to 1.500 bar
Up to 4 x overpressure
safetyTitanium alloy SoS pressure
sensorOptional certification acc.
to ATEX / IECEx (M1)
Very hightemperature resistanceThe SUCO GroupWe are a reliable and innovative partner worldwide at your side.
In addition to our standard products, we offer customised
solutions and tailored components for almost any applicationin which pressure or temperature needs to be reliably and safely
monitored, measured or controlled.

SUCO Robert Scheuffele GmbH & Co. KG
Pressure Monitoring & Transmission Technology
Keplerstraße 12 – 1474321 Bietigheim-Bissingen
Germany
Phone +49 7142 597 0
info@suco.de, www.suco.de
A SUCO Group company

Over 70 years of experience in pressure montoring
100% EOL test of all products
Compliance with numerous national and international
standards and certifications, such as ISO 9001: 2015
Large selection of connectors and threads
Protection against overload, overvoltage or short circuit
IP protection classes up to IP6K9K and high temperature
tolerance (-40°C … +125°C) against extreme cold / heatReady-wired and moulded pressure switches
PLUS pressure switch with safety function against cable breakand short circuit