Turnkey High-Capacity Energy Storage Skid for Critical Heavy Industry
When heavy industrial machinery—such as 10,000-ton forging presses, metallurgical rolling mills, high-speed plastic extrusion systems, and offshore emergency blowout preventers (BOP)—requires instantaneous massive fluid release, single accumulators cannot hold sufficient expansion volume. SCHWERLL High-Pressure Accumulator Gas Bottle Racks integrate multiple large-capacity seamless forged pressure vessels connected to high-flow forged alloy manifolds on a rigid, vibration-dampened transportable skid. By transferring compressible nitrogen gas volume into auxiliary back-up bottles, fluid capacity is multiplied by up to 10× while maintaining compact floor space footprint.
Engineered System Architecture
- High-Integrity Forged Seamless Cylinders: Fabricated from 34CrMo4 or 4130 quenched and tempered alloy steel with seamless hot-spinning technology. Zero longitudinal or circumferential welds eliminate fatigue failure risks under extreme pulsation.
- Integrated High-Flow Gas Manifold: Forged heavy-wall gas header pipe with flanged or butt-welded branch connections, sized for ultra-low pressure drop (< 0.5 bar at peak discharge velocities).
- Complete Safety & Isolation Protection: Each bottle or bank can be individually isolated using SCHWERLL high-pressure ball valves. Includes central ASME/CE certified safety relief valves, bursting rupture discs, pneumatic fail-safe emergency vent valves, and gas condensate drain points.
- Jurisdiction Certified Manufacturing: Built, inspected, and stamped in strict compliance with target site regulations: ASME Section VIII Div. 1 with U-stamp, PED 2014/68/EU Module H1, EAC TR CU 032/2013, or TSG 21 Class A.
- Heavy-Duty Structural Skid: FEA-optimized heavy channel base frame with certified 4-point crane lifting lugs, forklift access pockets, seismic anchor bolt holes, and high-durability 3-layer offshore marine epoxy coating.
Standard Technical Parameters
| Technical Feature | Metric Standard | Imperial Units |
|---|---|---|
| Model Series | GBR-Series Multi-Bottle Bank | Engineered Skid Station |
| Number of Gas Bottles | 2, 4, 6, 8, 12, 16, or 24 Bottles per Rack | Modular Expandable Bank |
| Individual Bottle Volume | 50 L, 80 L, 100 L, 150 L, 200 L | 13.2, 21.1, 26.4, 39.6, 52.8 Gallons |
| Total Skid Gas Storage Volume | 100 Liters – 4,800 Liters | 26.4 Gallons – 1,268 Gallons |
| Design Pressure Ratings | 21.0 MPa / 31.5 MPa / 40.0 MPa | 3,000 PSI / 4,500 PSI / 5,800 PSI |
| FAT Hydrostatic Proof Test | 1.5× Design Pressure (Up to 60 MPa) | 1.5× MAWP (Up to 8,700 PSI) |
| Design Operating Temperatures | -40°C to +80°C (Special Low-Temp -60°C available) | -40°F to +176°F |
| Manifold Connection Sizes | DN25, DN32, DN50, DN80 Flanged / Welded | 1″, 1-1/4″, 2″, 3″ High-Pressure Split Flange |
| Code Compliance Stamping | ASME Sec. VIII Div.1, PED 2014/68/EU, EAC CU-TR 032 | National Board (NB), CE, EAC, TSG |
| Third-Party Witness Inspection | Available with SGS, Bureau Veritas, DNV, TÜV, Lloyd’s | 3.1 & 3.2 Material Test Certificates |
