Manifold Pressure Regulators LHR 300 BSP (Hauptdruckminderer)

Vulkan LHR300/200 BSP is a single-stage manifold and in-line regulator for high-pressure gas supply where a BSP outlet interface is required. It is offered in 270 bar, 200 bar, and 100 bar working-pressure steps, with compact dimensions and a flow rate up to 480 Nm³/h.

 

Description

The LHR300/200 BSP is the bridge between manifold regulation and line regulation. It is positioned for users who need one regulator platform for high-pressure supply with a G 1/2 RHak outlet and gas-specific inlet versions for oxygen, inert gases, hydrogen, and compressed air. The catalog lists three working-pressure steps — 270 bar, 200 bar, and 100 bar — which makes this model structurally different from the HR family.

Competitor product pages describe the LHR series as a single-stage main and line regulator with safety gauges according to ISO 5171, gas-specific inlet connections, and up to 300 bar inlet pressure depending on the version. That gives the product page its correct selling position: a flexible high-pressure regulator for manifold duty and downstream line integration, not just a bundle accessory.

Table 1. Technical data

Parameter Value
Body Brass
Seals EPDM
Diaphragm EPDM
Leak rate 1 × 10⁻⁶ mbar l/s
Temperature -20 to +60 °C
Max. inlet pressure (pe max) See versions below
Max. flow (Qmax) 480 Nm³/h
Inlet connection (de) DIN 477 RH/LH
Outlet pressure range (pa) See versions below
Rated pressure point (at pa) See versions below
Outlet connection (da) G 1/2 RHak
Width (B) 150 mm
Height (H) 210 mm
Depth (T) 120 mm
Weight (M) 1.2 kg

Table 2. Versions and article numbers

Gas type Outlet pressure Inlet pressure 200 bar article no. Inlet pressure 300 bar article no.
CO₂ / argon 270 bar 306 771
Helium 270 bar 306 771 26
Nitrogen 270 bar 303 771
Hydrogen 270 bar 304 771
Compressed air 270 bar 307 771
Oxygen 200 bar 208 770 308 770
CO₂ / argon 200 bar 206 770 306 770
Helium 200 bar 206 770 26 306 770 26
Nitrogen 200 bar 203 770 303 770
Hydrogen 200 bar 204 770 304 770
Compressed air 200 bar 207 770 307 770
Oxygen 100 bar 208 760 308 760
CO₂ / argon 100 bar 206 760 306 760
Helium 100 bar 206 760 26 306 760 26
Nitrogen 100 bar 203 760 303 760
Hydrogen 100 bar 204 760 304 760
Compressed air 100 bar 207 760 307 760