Ball valve and flow control solutions for hydrogen (H2) applications
The right ball valve for your hydrogen (H2) application
Our products can be used in the complete hydrogen process chain - hydrogen generation, transport and mobile pipelines as well as compression and fueling stations. We also pay attention to your specific application conditions to offer you the technically and economically best solution.
Hydrogen (H2) ball valves specifications
Sizes
DN6 (1/4“) - DN100 (4“)
Pressure rating
up to 1034 bar (14500 psi)
Body material
1.4571 / AISI316Ti, others on request
Temperature range
-40°C / +85°C, others on request
Actuation
- manual
- automatic (pneumatic, electric or hydraulic)
Connections
- DIN ISO 228 Female thread
- ANSI B1.20.1 NPT Female thread
- SAE J514/ISO/DIS11926-1 Female thread
- DIN 2353 / ISO 8343-1 Heavy series
- C&T medium Pressure
- others on request
Accessories on request
- Locking devices
- Mounting holes
- Position switches
- Combinations
- Detent
Any questions?
Ball Valves for Hydrogen (H2) Production
Ball valves for H2 production
This application includes systems e.g. for electrolysis or power-to-gas systems. Of course, ball valves from MHA ZENTGRAF can also be used at these lower pressure applications.
Larger nominal widths of up to 4“ can also be offered to ensure maximum flow capacity. A leakage rate A according to DIN EN 12266 is guaranteed even at larger nominal diameters.
Our valves are available with either threaded or flange connection according your specification. On request accessories like limit switches, locking devices or fully automated valves are available.
Features
- Sizes: up to DN100 (4“) full flow
- Connections: threaded, flanged
- Manual or automatic actuation
HFKH500
Ball valves for hydrogen (H2) transport applications & fueling systems
Ball valve series HFKH500 for hydrogen transport applications and fueling systems up to 500 bar
Gas transport and fueling applications set higher requirements for ball valves. At 350 bar fueling, system pressures up to 500 bar occur during compression and storage. Considering the temperature influence, a Type 3 Technology Cylinder for example is designed for system pressures of approximately 480 bar.
During transport, vibrations and weather influences can put heavy strain on the system equipment. Additionally, valves for such kind of applications are actuated more frequently because filling and drain processes are carried out regularly.
For use as a maintenance valve, with occasional operations, we recommend our proven ball valves with gas seat system using hydrogen-compatible materials.
For ball valves with higher operation frequencies up to 500 bar, we offer our new HFKH500 hydrogen ball valve. Our ball valves are designed for switching under full differential pressure. On request, our ball valves can be supplied as a complete unit with assembled and tested actuator. These ball valves already meet the endurance requirements of the new ISO 23826 and can probably be used for TPED-relevant areas starting Q2 2023.
H2 ball valve series HFKH500 features
- Sizes: DN8 (3/8“), DN13 (1/2“), DN25 (1“)
- Pressure rating: 500 bar
- Connections: threaded, flanged
- Tested according TPED guideline (ISO 23826)
- Rapid gas decompression proven o-rings
- Materials according ISO11114
HFKH650
Ball valves for hydrogen (H2) transportation & fueling systems
Ball valve series HFKH650 for hydrogen transport and storage up to 650 bar
Higher compression of hydrogen during transport and storage improves the efficiency of the systems, saves installation space and, last but not least, reduces costs. Considering the temperature influence, State of the Art Type 4 Technology Cylinders are designed for pressures up to 650 bar.
With the new HFKH650 hydrogen ball valve, MHA offers a reliable solution for this kind of application. Additionally, it has a torque-optimized design so it can be conveniently switched by hand even at full differential pressure.
The new ball valve series already meets the endurance requirements of the new ISO 23826 standard and can probably be used for TPED-relevant applications starting Q2 2023.
H2 ball valve series HFKH650 features
- Sizes: DN8 (3/8“), DN13 (1/2“), DN25 (1“)
- Pressure rating: 650 bar
- Connections: threaded, flanged
- Tested according TPED guideline (ISO 23826)
- Rapid gas decompression proven o-rings
- Materials according ISO11114
HFKH1000
Ball valves for hydrogen (H2) fueling stations
Ball valve series HFKH1000 for hydrogen fueling at pressures up to 1034 bar
At 700 bar fueling of passenger cars, hydrogen is compressed and stored at pressures up to 1034 bar. Latest developments reveal a tendency to 700 bar technology also for commercial vehicles such as trucks and busses.
ISO 19880-3 Standard (Gaseous Hydrogen – Fueling Stations – Part 3: Valves) differs between valves for maintenance (Class B) and operation (Class A) purpose. While Class B Valves are only meant to withstand 100 cycles of operation at room temperature, Class A Valves shall withstand 102000 cycles (100000 at RT, 1000 at -40 °C and another 1000 at +85 °C) without losing integrity of the seal system. MHA aims to qualify its HFKH1000 hydrogen ball valve acc. to ISO 19880-3, Class A.
To enable up to 102000 actuations under full differential pressure, the HFKH1000 trunnion valve was designed with special attention to reduced wear and friction. This ensures a maximal level of reliability and sustainability even under harshest conditions.
H2 ball valve series HFKH1000 features
- Sizes: DN8 (3/8“), DN13 (1/2“)
- Pressure rating: 1034 bar
- Connections: threaded, flanged
- Tested according TPED guideline (ISO 23826)
- Rapid gas decompression proven o-rings
- Materials according ISO11114
Key features of MHA ball valves in hydrogen (H2) applications
Size reduction
Ball valves have a significant advantage compared to other types of valves: Full flow cross section in open position! A DN13 ½“ ball valve has a Cv value of 22 gal / min. This Cv value can only be reached with sizes of approx. DN32 (1 ¼“) at other valve types, e.g. globe or needle valves. In addition, ball valves can be used to achieve a high degree of leakage free closure.
Pressure testing
- Pressure testing acc. DIN EN 12266-1 and DIN EN 14246 with test gas (Nitrogen + Helium)
- Static and Cyclic high pressure gas testing with air (≤ 550 bar) or nitrogen (up to 1000 bar) in the temperature range from -40 °C to + 85 °C
- Valve endurance tests acc. to ISO 19880-3 and ISO 23826 (actuation at full ∆P, -40 °C ≤ T ≤ +85 °C) carried out inhouse during development and on customer request
Metallic materials
- Due to its high resistance against hydrogen embrittlement, 316-Series stainless steels (1.4404, 1.4571) are used whenever possible.
- If higher material strength is required, e.g. for stems, balls or trunnions, high strength austenitic stainless steels with particular resistance to strain-induced phase transformations, such as A286 (1.4980) and Nitronic-50®, are used. Duplex or Martensitic grades are avoided.
Temperature range
- Materials suitable for temperatures from -40 °C up to +140 °C
- Temperature range acc. ISO 19880-3 is specified as -40 °C / +85 °C
Leakage
Internal and external leakage acc. DIN EN 12266 leakage rate A and the TPED standard for ball valves, ISO 23826
Lubricants and cleaning
- Oil and grease free products through ultrasonic cleaning
- Assembly of valves without additional lubrication at all wetted surfaces
Sealing materials
- All sealing materials chosen to prevent damages through explosive decompression (e.g. NORSOK M-710)
- Sealing materials acc. DIN EN ISO 11114-2 for hydrogen usage
- Special attention is paid to low temperature seal performance
Your experts for H2 ball valves
You can contact us in all the world’s four main time zones. We speak seven languages: English, Spanish, Chinese, Italian, Russian, French and German. Please feel free to contact us.
Ball valve catalogs
Hydrogen Valves Brochure
Discover our product range for your hydrogen application (PDF, English)
Main Catalog
Our entire standard range of ball valves and flow control valves, including accessories (PDF, English)
Basic Program
Our entire standard program of ball valves and flow control valves in brief (PDF, German/English)
Standard ball valves
As well as individual ball valves and valves, MHA ZENTGRAF has more than 30,000 ball valves and flow control valves in stock at any given time.
Downloads
Popular ball valves
Contact
E-mail: info@mha-zentgraf.com
Phone: + 49 6861/7000-0
