The Air Liquide Nr. 78430024 Type HBS 200-3-2,5 is a two-stage cylinder pressure reducer engineered for ultrapure and special gases up to 200 bar, specifically designated for hydrogen. Featuring a rear entry with a manual bottle connection per DIN 477, part 1 no. 1, and a downward G3/8" inside outlet with a 6 mm brass compression fitting, this unit delivers a capacity of 2.5 m3/h [N2] within a control range of 0.1 to 3.0 bar. It weighs 1.22 kg and operates in temperatures from -20°C to +50°C. The design incorporates a chromed brass case, a stainless steel 1st stage membrane, a Tombak 2nd stage bellows, PTFCE and brass seats, brass and EPDM/brass valve cones, and nylon seals. Additionally, it includes a drainable blow-off valve with a 6 mm compression fitting and a blow-off pressure of 16 bar.
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| Manufacturer | Air Liquide |
|---|---|
| Country | |
| Part number | Nr. 78430024 Type HBS 200-3-2,5 |
| Inner Code | 3935993 |
| Product type | cylinder pressure reducer for hydrogen |
|---|---|
| Article | 124487 78430024 |
| Type | HBS 200-3-2,5 |
| Application | Cylinder pressure reducer for ultrapure and special gases up to 200 bar |
| Design | two-stage - 1st stage membrane/2nd stage bellows |
| Entry | backwards, manual bottle connection according to DIN 477, part 1 no. 1 |
| Outlet | downwards, G3/8" inside with Ms compression fitting 6mm |
| Capacity | 2.5 m3/h [N2] |
| Control range | 0.1 # 3.0 [bar] |
| Operating temperature | - 20°C to + 50°C |
| Weight | 1.22 kg |
| Case material | chromed brass |
| Membrane material | stainless steel (1st stage) |
| Bellows material | Tombak (2nd stage) |
| 1st stage seat | PTFCE |
| 2nd level seat | brass |
| 1st stage valve cone | brass |
| 2nd stage valve cone | EPDM/brass |
| Seals | nylon |
| Blow-off valve | can be drained (6 mm compression fitting) |
| Blow-off pressure | 16 bar |
| Type of gas | hydrogen |