从China供应商批发进口Accumulator Bladder Nxqa-10/20-L-Eh — FOB条款

The NXQA-10/20-L-EH is a bladder-type hydraulic accumulator with a 10-litre nominal fluid capacity and a 20 MPa maximum working pressure, distinguished from higher-pressure variants by its extended height (EH) shell geometry and L-series fluid port configuration. This model serves the Bangka Belitung 3 power installation and similar medium-pressure hydraulic systems where energy storage,f, emergency power for valve actuation, or pulsation dampening is required. The 20 MPa rating positions it within the mid-pressure band of the NXQA series, which shares bladder and seal architectures with the 31.5 MPa line but employs thinner-walled shells proportioned to the reduced pressure duty. The EH suffix indicates increased overall height relative to standard proportions, a factor critical when retrofitting into existing skid-mounted hydraulic packages with constrained horizontal clearance.

Bladder construction for this pressure class typically employs moulded nitrile rubber (NBR) with fabric reinforcement at the fluid port interface to resist extrusion under rapid discharge conditions. The standard temperature envelope spans -20 degree Celsius to 80 degree Celsius for mineral oil service, with HNBR or EPDM alternatives available for synthetic fluids or elevated temperature duty. Shell manufacture follows Chinese pressure vessel standards with seamless steel construction, hydrostatic testing at 1.5 times maximum working pressure (30 MPa minimum), and surface preparation for corrosion protection. The NXQA designation signifies a bladder accumulator with threaded shell closure and replaceable bladder format, as opposed to welded-diaphragm or piston alternatives. Gas charging utilises the same nitrogen medium and valve interface as higher-pressure series units, permitting standardised maintenance tooling across a plant's accumulator fleet.

Primary buyers include hydroelectric and thermal power station maintenance teams, hydraulic system OEMs, and marine or offshore system integrators operating medium-pressure circuits. The 10-litre capacity suits auxiliary systems rather than main servo loops, typical applications being emergency turbine governor oil pressure maintenance, lubrication system backup supply, and damping of pump pulsation in continuous-duty circuits. Sourcing this model requires confirmation that the EH height dimension matches the installation envelope, verification of port orientation (vertical or angled variants), and assessment of whether the L-series port thread matches existing piping (commonly metric fine or BSPP). The supplier's reference to participation in Gezhouba and Three Gorges projects suggests experience in large hydropower auxiliary systems, though buyers should request project-specific reference documentation rather than relying on general claims.

Deyang Dongfang Yoyik Engineering Co., Ltd. operates from Huashan Plaza, Jingyang District, Deyang, Sichuan Province, China, postal code 618000. The supplier's trust tier is classified as harbour, with no recorded response rate or average response time available in the current dataset. The company publicly references a senior technical team with experience in major Chinese hydropower projects including Gezhouba and Three Gorges, and states adherence to national standards with precision machining equipment for power station and steel industry applications.

The supplier maintains a diversified spare parts catalogue for power stations, with this accumulator bladder appearing alongside impellers, electromagnetic valves, pressure reducing filters, and pump components. No verified ISO certifications, specific manufacturing licences, or audited financial data are present in the source material. The Sichuan location provides proximity to China's western hydropower infrastructure, though buyers should conduct independent due diligence on quality system certification and request factory inspection for first orders. The company advertises both standard products and technical transformation solutions, suggesting engineering consultation capability beyond component supply.