CHIYODA SEIKI BHN3-2 Precision Pressure Regulator SRS-HS-BHN3-2 (15MPa, 0.1 - 0.3MPa)
| Manufaturer: | CHIYODA SEIKI |
| Model: | BHN3-2 |
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Description
- Primary pressure: 15.0MPa or less
- Adjustment pressure: 0.1 - 0.3MPa
- Side pressure gauge (inlet/outlet): 25/0.6MPa
- Applicable gas: O2・N2・Ar・Air
- Decompression structure: 2 stages
- Maximum flow rate: 100L/min
- Inlet: W22 14 mountains right cap nut
- Outlet: Rc1/4 valve
- Body material: Brass
- SRS-HS
- Model number: BHN3-2
- See also: 10 Different Types of Valves and Their Uses
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Frequently Asked Questions (FAQ) for CHIYODA SEIKI BHN3-2 Precision Pressure Regulator:
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1/ What are the inlet and outlet pressure specifications?
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The regulator accepts a maximum inlet pressure of 15.0 MPa and provides an adjustable outlet pressure from 0.1 to 0.3 MPa.
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2/ Which gases can be used with the BHN3-2?
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It’s compatible with oxygen (O₂), nitrogen (N₂), argon (Ar) and clean air.
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3/ How does the two-stage pressure regulation work?
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The first stage reduces high inlet pressure roughly to an intermediate level, and the second stage fine-tunes the outlet pressure. This dual-stage design maintains a stable outlet even if the primary pressure fluctuates significantly.
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4/ What is the maximum flow rate?
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Up to 100 L/min, making it suitable for most laboratory and industrial gas supply needs.
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5/ What material is the body made from?
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The body is constructed from SRS-HS brass, offering high corrosion resistance and durability.
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6/ What connection ports does it have?
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Inlet: W22×1/14 right-hand cap nut (14 mountains)
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Outlet: Rc 1/4 threaded valve
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7/ How should I install and calibrate the regulator?
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Mount it immediately downstream of a particulate filter and moisture trap to ensure clean gas.
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Tighten all fittings, check for leaks, then adjust the outlet pressure via the fine-tuning knob while observing the outlet gauge.
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8/ How do I maintain the BHN3-2 for long-term reliability?
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Periodically clean around the piston and spring areas to remove debris.
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Inspect seals and gauges for wear or damage.
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Avoid exceeding the rated inlet (15 MPa) or outlet (0.3 MPa) pressures.
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9/ What optional accessories are available?
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In-line particulate and coalescing filters
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Quick-connect couplings
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Additional downstream pressure gauges
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Adapters for PT, NPT or G-threaded fittings
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