OVERVIEW
• Overpressure safety up to 8,700 psi (600 bar)
• EPDM diaphragm in SAE 316L grade stainless steel housing
• Various threads and pre-wired versions are available upon request
• cCSAus certification
MADE IN THE USA
Hydrogen (H) being the lightest element is the most abundant element in our universe (70%). Most hydrogen on earth exists in molecular forms such as water and organic compounds.
It is being used in liquid form (LH2) or as a colorless and odorless gas (H2) in many sectors such as petrochemistry, energy, mobility or production.
Since gaseous hydrogen combined with oxygen (O2) can form an explosive gas mixture (oxyhydrogen), most applications are subject to special safety pre-cautions regarding fire and explosion protection.
Many possibilities and potentials of hydrogen technology have only been developed and opened up in recent years and today play a key role in climate-neutral energy generation & storage.
TECHNICAL SPECIFICATIONS
Thermocouple type: | Type K |
Pressure Range: | 1.4 psi - 725 psi |
Overpressure Safety: | up to 8,700 psi (600 bar) |
Housing: | EPDM diaphragm in |
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Compact Diaphragm Pressure Switch for Low-to-Mid Pressure Hydrogen Applications
The 0H64 Series SUCO Hydrogen Compatible Pressure Switch is a precision-engineered mechanical pressure switch designed specifically for monitoring and controlling pressure in hydrogen systems. Built with hydrogen-compatible materials and a robust stainless steel housing, the 0H64 series delivers reliable switching performance in low to mid pressure ranges, making it ideal for hydrogen production, storage, and distribution applications.
Designed to meet the unique challenges of hydrogen environments—including permeation, safety, and durability—the 0H64 provides a dependable solution for critical pressure monitoring applications.
Engineered for Hydrogen System Compatibility
Hydrogen applications demand specialized sensor technologies due to the gas’s small molecular size and high diffusivity. The 0H64 series is designed with materials and sealing technologies that ensure safe and reliable operation in hydrogen environments.
As shown in the datasheet, EPDM sealing materials are used to support compatibility with hydrogen, oxygen, water, forming gases, and other inert media.
This makes the 0H64 an excellent choice for use in:
Hydrogen fuel cell systems
Hydrogen storage and distribution infrastructure
Industrial gas handling systems
Clean energy and renewable applications
Low-to-Mid Pressure Measurement Range
The 0H64 is designed for applications requiring accurate switching at lower pressure levels:
Setting range: 0.1 to 50 bar (1.4 to 725 psi)
Multiple factory-set pressure ranges are available within this span, allowing for precise configuration based on system requirements.
This makes the 0H64 particularly well-suited for:
Low-pressure hydrogen supply systems
Gas regulation and distribution
Pressure monitoring in fuel cell stacks
Diaphragm-Based Switching Technology
The 0H64 utilizes a diaphragm-based pressure sensing mechanism, which is ideal for lower pressure ranges:
High sensitivity at low pressures
Stable switching performance
Consistent repeatability
Diaphragm switches are commonly used in applications where precision and responsiveness are required at relatively low pressures.
High Overpressure Protection for Safety
Safety is critical in hydrogen systems, and the 0H64 is designed with significant overpressure capability:
Overpressure-proof up to 600 bar (8,700 psi)
This high safety margin helps protect the device from damage due to pressure spikes or transient events.
Stainless Steel Construction for Durability
The 0H64 features a robust stainless steel housing:
Material: 1.4404 (AISI 316L) stainless steel
This provides:
Excellent corrosion resistance
Compatibility with hydrogen and industrial gases
Long-term durability in harsh environments
The rugged construction ensures reliable performance in demanding industrial and energy applications.
Flexible Switching Configurations
The 0H64 is available with multiple switching options to suit different system designs:
Normally Open (NO)
Normally Closed (NC)
This flexibility allows engineers to configure the switch for:
Alarm activation
System shutdown or protection
Process control
Reliable Electrical Performance
The 0H64 supports a range of electrical switching capacities:
Voltage range: 5 to 42 VDC / VAC (depending on configuration)
Suitable for low-power control circuits
The electrical contacts are designed for reliable switching in industrial environments.
Long Mechanical Life and High Switching Frequency
The 0H64 is designed for long-term operation:
Mechanical life: Up to 1,000,000 switching cycles
Switching frequency: Up to 200 cycles per minute
This durability makes it suitable for continuous operation in automated systems.
Stable Hysteresis for Consistent Operation
The 0H64 features a defined hysteresis range:
Non-adjustable hysteresis for consistent switching behavior
This ensures predictable switching performance and helps prevent chatter in fluctuating pressure conditions.
Compact and Easy to Install
The 0H64 is designed for straightforward installation:
Hex size: 24 mm
Compact form factor
Standard thread connection (G1/4-E ISO 1179-2)
This allows for easy integration into existing systems and tight installation spaces.
Resistant to Vibration and Shock
The 0H64 is built to withstand harsh operating conditions:
Vibration resistance: 10 g (5–200 Hz)
Shock resistance: 294 m/s²
These characteristics make it suitable for use in mobile equipment, industrial machinery, and dynamic environments.
Wide Operating Temperature Range
The 0H64 is designed to operate across a broad temperature range:
Temperature range: –22°F to +248°F (–30°C to +120°C)
This allows the switch to perform reliably in both cold and elevated temperature environments.
Typical Applications
The 0H64 Series Hydrogen Pressure Switch is ideal for:
Hydrogen production and processing systems
Fuel cell technology and hydrogen storage
Hydrogen distribution and transport systems
Industrial gas monitoring
Renewable energy systems
Its low-to-mid pressure capability makes it especially useful in upstream and distribution-level applications.
Why Use a Hydrogen-Compatible Pressure Switch?
Hydrogen systems require specialized components that can safely handle:
Gas permeation
Pressure cycling
Harsh environmental conditions
The 0H64 addresses these challenges with:
Hydrogen-compatible sealing materials
High overpressure protection
Robust stainless steel construction
Key Features at a Glance
Designed for hydrogen (H₂) applications
Pressure range: 0.1 to 50 bar (1.4 to 725 psi)
Diaphragm pressure switch design
Overpressure protection up to 600 bar
Stainless steel (316L) housing
EPDM sealing materials
Normally Open and Normally Closed configurations
Mechanical life up to 1,000,000 cycles
Switching frequency up to 200/min
Compact 24 mm hex design
Resistant to vibration and shock
A Reliable Solution for Hydrogen Pressure Monitoring
The 0H64 Series SUCO Hydrogen Compatible Pressure Switch provides a compact, durable, and reliable solution for monitoring pressure in hydrogen systems. Its combination of precise switching, robust construction, and hydrogen-safe materials makes it a critical component in modern energy and industrial applications.
Optimize Your Hydrogen System
Whether you are designing hydrogen infrastructure, upgrading industrial systems, or implementing safety controls, the 0H64 delivers the performance and reliability needed for safe and efficient operation.
Contact us today to learn more or configure the right hydrogen-compatible pressure switch for your application.