Second Stage - Demand Valve
AssemblyDownstream demand regulator taking ~9 bar intermediate pressure, delivering diver-controlled breathable pressure via inhalation-triggered valve. A full specification article for this item is being written. Meanwhile its bill of materials and connections are below.
Second Stage - Demand Valve parts and their functions
6 top-level parts · 6 parts in total · full bill of materials below
| # | Part | Qty | What it does |
|---|---|---|---|
| 1 | Second Stage Housing | 1× | Injection-molded nylon or cast aluminum housing breathing chamber |
| 2 | Inhalation Lever | 1× | Mechanical lever linked to demand valve seat, triggered by inhalation |
| 3 | Demand Valve Seat | 1× | Sapphire or tungsten carbide valve seat minimizing wear and free-flow drift |
| 4 | Exhaust One-Way Valve | 1× | One-way mushroom valve venting exhaled breath via exhaust port |
| 5 | Silicone Mouthpiece | 1× | Silicone or rubber bite block and mouth cup |
| 6 | Second Stage O-Rings & Diaphragm | 1× | O-ring seals and diaphragm preventing water ingress |
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Bill of materials for Second Stage - Demand Valve
6 top-level lines · 6 rows shown · 6 parts total · indented to 3 levels| # | Item / sub-assembly | Part no. | Qty/assy | Ext. qty | Parts | Type |
|---|---|---|---|---|---|---|
| 1 | Second Stage Housing | scuba-regulator-second-stage-body | 1× | 1 | · | part |
| 2 | Inhalation Lever | scuba-regulator-demand-lever | 1× | 1 | · | part |
| 3 | Demand Valve Seat | scuba-regulator-valve-seat | 1× | 1 | · | part |
| 4 | Exhaust One-Way Valve | scuba-regulator-exhaust-valve | 1× | 1 | · | part |
| 5 | Silicone Mouthpiece | scuba-regulator-mouthpiece | 1× | 1 | · | part |
| 6 | Second Stage O-Rings & Diaphragm | scuba-regulator-second-stage-seal | 1× | 1 | · | part |
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Where the second stage - demand valve is used
1 product across 1 domain contain it, directly or inside a sub-assemblyUsed in 1 assembly
Sourcing: possible vendors
Browse the supplier directory → Prices, MOQ, and lead times are algorithmic estimates, not quotes, and not claims about these companies. Company mappings are curated by keyword; est. price band $5–$2k. How estimates work| Vendor | HQ | Specialty | MOQ | Lead time |
|---|---|---|---|---|
| kbl.co.in ↗ | Pune, IN | Pumps & fluid systems | 200 units | 6–10 wks |
| leo.com.cn ↗ | Taizhou, CN | Pumps | 200 units | 6–10 wks |
| shaktipumps.com ↗ | Pithampur, IN | Pumps | 200 units | 6–10 wks |
| cnppumps.com ↗ | Hangzhou, CN | Pumps | 200 units | 6–10 wks |
| rotopumps.com ↗ | Noida, IN | Pumps | 200 units | 6–10 wks |