Description
The Vulkan LH25/10 is a heavy-duty single-stage line pressure regulator for industrial gas systems that require controlled downstream pressure in the lower-to-medium pressure range. It is intended for secondary pressure control points where the upstream line pressure may reach 40 bar, while the process requires a stable adjustable outlet pressure between 0.5 and 10 bar.
The series catalog specifies a brass body, NBR seals, and an NBR diaphragm, combined with a safety pressure gauge according to ISO 5171. The regulator is configured with G 1 RH female inlet and outlet connections, has a leakage rate of 1 × 10⁻³ mbar l/s, and is rated for a temperature range of -20 to +60 °C. In the LH catalog, the LH25/10 is listed with dimensions of 200 × 240 × 145 mm and a weight of 3.6 kg, which reflects its position as a serious line regulator for fixed industrial installation.
Commercially, the LH25/10 should be positioned as the regulator for users who do not need the broader 25 bar range of the LH25, but still need a mechanically robust and high-capacity industrial unit. Dealer listings on gasetechnik24 present gas-specific LH25/10 versions as line pressure regulators for technical gases up to purity 4.5, reinforcing the series position in standard technical gas networks for oxygen, inert gases, nitrogen, hydrogen, and compressed air.
Its main advantage is specification discipline. The Vulkan LH25/10 does not try to cover every pressure scenario. It focuses on the range that is often needed in plant gas systems, production lines, and utility gas distribution: enough outlet pressure for real process use, enough flow for industrial operation, and enough mechanical mass to remain stable in continuous service. With up to 180 Nm³/h at 10 bar outlet pressure, it is clearly above light-duty compact regulators.
Key selling points
- Single-stage industrial in-line pressure regulator
- Up to 40 bar inlet pressure
- 0.5–10 bar adjustable outlet pressure
- Flow capacity up to 180 Nm³/h at 10 bar outlet pressure
- Brass body with NBR seals and diaphragm
- Safety gauge according to ISO 5171
- Suitable for oxygen, CO₂/argon, helium, nitrogen, hydrogen, and compressed air
- Strong fit for industrial gas distribution and controlled secondary pressure reduction
Applications
The Vulkan LH25/10 is suitable for:
- industrial gas distribution systems
- production and process gas supply lines
- machine gas feed points
- oxygen and inert gas service
- nitrogen and hydrogen installations
- compressed air supply networks
- secondary pressure control in plant gas systems
Dealer listings also position LH25/10 variants for technical gases up to purity 4.5, which supports use in standard industrial technical gas applications.
Table 1. Technical data
The technical data below follows the uploaded LH series catalog page 43.
| Parameter | Value |
| Product name | Vulkan LH25/10 In-Line Pressure Regulator |
| Design | Single-stage |
| Body material | Brass |
| Seals | NBR |
| Diaphragm | NBR |
| Max. inlet pressure | 40 bar |
| Outlet pressure | 0.5–10 bar adjustable |
| Max. flow | 180 Nm³/h at 10 bar outlet pressure |
| Inlet connection | G 1 RH female |
| Outlet connection | G 1 RH female |
| Leakage rate | 1 × 10⁻³ mbar l/s |
| Temperature range | -20 to +60 °C |
| Width (B) | 200 mm |
| Height (H) | 240 mm |
| Depth (T) | 145 mm |
| Weight (M) | 3.6 kg |
| Gauge | Safety gauge according to ISO 5171 |
Table 2. Versions and article numbers
The gas-specific versions below follow the uploaded LH series catalog page 43.
| Gas type | Article no. |
| Oxygen | 108 511 10 |
| CO₂ / Argon | 106 511 10 |
| Helium | 106 511 26 10 |
| Nitrogen | 103 511 10 |
| Hydrogen | 104 511 10 |
| Compressed air | 107 511 10 |
