Import Accumulator Air Inlet Valve — Buy in wholesale FOB from Supplier in China

The accumulator air inlet valve QXF-5 is a compact gas charging and isolation valve designed for bladder and piston-type hydraulic accumulators, manufactured by Dongfang Yoyik Engnieering Co., Ltd. in Deyang, Sichuan Province, China. The QXF designation identifies it as a standard Chinese accumulator accessory valve, with the -5 suffix typically indicating a 5 mm orifice or connection size compatible with small to medium accumulator volumes. This valve functions to control nitrogen filling, venting and isolation between the accumulator gas side and external charging equipment, ensuring safe maintenance and accurate pre-charge pressure setting. YOYIK states the company was established in 2004 and serves power, petroleum, chemical and metallurgical sectors, though no specific test standards or pressure ratings for the QXF-5 are provided in the source data.

The QXF-5 valve body is typically forged carbon steel or brass with a needle or ball-type shut-off mechanism, sealed with elastomeric packing rated for nitrogen service. Standard accumulator inlet valves in this size range are rated for 31.5 MPa or 40 MPa maximum working pressure, with a 1/4 inch or 5 mm BSPP/Metric threaded connection to the accumulator gas valve and a Schrader or quick-coupler charging port. The seal material must resist nitrogen permeation and retain flexibility across -20 °C to +80 °C ambient; typical packing is nitrile rubber (NBR) or fluororubber (FKM) depending on the supplier's specification. Dongfang Yoyik Engnieering Co., Ltd. does not publish material grades, torque specifications or leak-rate testing protocols for this valve in the available source description.

Applications for the QXF-5 include accumulator pre-charging stations in power plant turbine hydraulic systems, steel mill rolling mill circuits and chemical process safety accumulators. Buyers typically fit this valve during initial accumulator installation or replace it when gas leakage through a worn valve core compromises system pressure maintenance. The listing indicates YOYIK supplies a broad range of power plant spares including solenoid valves, pumps and seals, suggesting the QXF-5 is a catalogue standard item rather than a custom-engineered component. With zero recorded response rate and no stated lead time, buyers should confirm current stock, pricing and delivery schedule directly with Dongfang Yoyik Engnieering Co., Ltd. before finalising procurement.

Dongfang Yoyik Engnieering Co., Ltd. is located at 4-3F, Building A, Huashan Platz, Deyang City, Sichuan Province, China, postal code 618000. The company holds a Harbor trust tier, indicating basic marketplace verification. The response rate is recorded at 0.00 percent with zero average response hours, which suggests either a data reporting issue, recent listing creation, or limited active engagement on the platform. The source description states the company was founded in 2004, giving it over two decades of claimed operation in power plant and industrial spare parts trading and manufacturing.

The supplier's product scope spans electric power, petroleum, chemical, environmental, metallurgical, firefighting, electronics and nuclear industry applications according to its description. This breadth suggests a trading company model with manufacturing partnerships rather than exclusive in-house production across all listed categories. No ISO certification numbers, factory audit references, named clients, employee counts or revenue figures appear in the source data. Buyers should request business licence verification, factory inspection reports and reference installations before committing to large or safety-critical orders. The similar name to Deyang Dongfang Yoyik Engineering Co., Ltd. suggests possible shared origin or related entities, though no corporate relationship is confirmed in the provided facts.