Description
The Vulkan LH25 is a heavy-duty single-stage line pressure regulator designed for reliable downstream pressure control in industrial gas supply networks. It is built for installations where a compact regulator is no longer enough, but a large dome-loaded pressure control unit would be excessive. With a maximum inlet pressure of 40 bar and an adjustable outlet pressure range from 0.5 to 25 bar, the LH25 covers a broad range of process, utility, and plant gas applications.
The regulator features a brass body, NBR seals, and an NBR diaphragm, and is equipped with a safety pressure gauge according to ISO 5171. The series catalog specifies G 1 RH female inlet and outlet connections, a leakage rate of 1 × 10⁻³ mbar l/s, and a temperature range of -20 to +60 °C. With dimensions of 200 × 210 × 120 mm and a weight of 3.6 kg, the LH25 is clearly positioned as a substantial industrial regulator for permanent installation in gas supply lines.
Commercially, the LH25 should be positioned as the high-capacity secondary regulator in the standard TECLINE range. The uploaded catalog covers versions for oxygen, CO₂/argon, helium, nitrogen, hydrogen, and compressed air, while dealer listings position LH25 variants for technical gases up to purity 4.5. That makes the model suitable for industrial users who need a dependable pressure regulator for central gas supply, line stabilization, and process distribution points rather than a light workshop regulator.
The strongest commercial argument for the Vulkan LH25 is straightforward: it combines a relatively high outlet pressure range with high line capacity in a mechanically simple one-stage design. That gives buyers a regulator that is easier to integrate, easier to service, and easier to specify for industrial gas lines where pressure stability, throughput, and mechanical robustness matter more than compact appearance.
Key selling points
- Single-stage industrial in-line pressure regulator
- Up to 40 bar inlet pressure
- 0.5–25 bar adjustable outlet pressure
- Flow capacity up to 300 Nm³/h at 25 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 choice for industrial gas distribution and process gas supply
Applications
The Vulkan LH25 is suitable for:
- industrial gas distribution systems
- process gas supply lines
- machine and equipment gas feeds
- oxygen and inert gas installations
- nitrogen and hydrogen service lines
- compressed air systems
- central gas supply networks
The product is also marketed in gasetechnik24 for technical gases up to purity 4.5, which supports its use in standard technical gas service rather than ultra-high-purity applications.
Table 1. Technical data
The technical data below follows the uploaded LH series catalog page 43.
| Parameter | Value |
| Product name | Vulkan LH25 In-Line Pressure Regulator |
| Design | Single-stage |
| Body material | Brass |
| Seals | NBR |
| Diaphragm | NBR |
| Max. inlet pressure | 40 bar |
| Outlet pressure | 0.5–25 bar adjustable |
| Max. flow | 300 Nm³/h at 25 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) | 210 mm |
| Depth (T) | 120 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 |
| CO₂ / Argon | 106 511 |
| Helium | 106 511 26 |
| Nitrogen | 103 511 |
| Hydrogen | 104 511 |
| Compressed air | 107 511 |
