About Hengshui Aohong Technology Co.,Ltd. - Industrial Valves & Gauges Supplier in China

Based in China, Hengshui Aohong Technology Co.,Ltd. lists five active products across the categories Industrial Valves & Gauges, Industrial Sheets, and Cable Glands & Reels. The catalogue includes Aohong Level Gauge Glass and Gasket, a Non‑Asbestos Oil‑Resistant Gasket Sheet, Flat Borosilicate Gauge Glass, All Kinds PTFE Gland Packing (HS 6815.10), and Borosilicate Level Gauge Glass. Each item is described with its material composition, such as PTFE, graphite‑filled PTFE and asbestos‑PTFE composite for the gland packing, and borosilicate glass for the gauge products. The supplier’s product set reflects typical components used in process instrumentation and cable sealing applications.

The gauge glass products are supplied as flat borosilicate pieces intended for level measurement in tanks and pipelines, while the gasket sheet is positioned for oil‑resistant sealing in industrial valve assemblies. PTFE gland packing is offered in multiple formulations to suit different cable gland pressure and chemical environments. No additional HS codes are provided for the glass or gasket items, and the catalogue does not specify certifications held by the supplier.

Product Range and Specialties of Hengshui Aohong Technology Co.,Ltd.

Borosilicate gauge glass is commonly supplied in thicknesses ranging from 3 mm to 10 mm, offering thermal resistance up to approximately 500 °C and high chemical durability. Level gauge glass variants typically meet optical clarity standards such as ISO 9001‑A for visual inspection and are sized to fit standard valve ports. Non‑asbestos oil‑resistant gasket sheets are usually produced from EPDM, nitrile or similar polymers, with typical thicknesses of 1 mm to 5 mm and compression‑set values below 30 % after 70 °C oil immersion. PTFE gland packing is available as virgin PTFE, graphite‑filled PTFE for enhanced lubrication, and asbestos‑PTFE composite for high‑temperature service, with common dimensions from 10 mm to 100 mm in diameter and lengths up to 500 mm. Standard industry HS codes include 7017 for flat glass articles, 4015 for gasket sheets, and 6815.10 for PTFE packing, while buyers often request material data sheets, ASTM D 4236 (PTFE) or ASTM C 149 (borosilicate) test reports, and compliance with RoHS or REACH where applicable.

Trade and Export Information - Hengshui Aohong Technology Co.,Ltd.

China is a major exporter of industrial instrumentation components, with gauge glass, gasket sheets and PTFE packing regularly shipped to Europe, Southeast Asia and North America. The HS code 6815.10 covers PTFE gaskets and packing and is subject to customs verification of material composition, while flat glass items typically fall under HS 7017 and gasket sheets under HS 4015. Export logistics from ports such as Shanghai or Ningbo often use 20‑ft or 40‑ft containers, with products packed in wooden crates, foam‑lined pallets or bulk bags depending on fragility and volume. Buyers usually require certificates of origin, commercial invoices and packing lists, and may specify Incoterms FOB Shanghai or CIF destination port.

Typical import regulations demand ISO 9001 quality management certification, CE marking for equipment‑related components, and test reports that meet ASTM or ISO standards (e.g., ASTM D 638 tensile testing for PTFE, ASTM C 149 thermal shock for borosilicate glass). Chinese exporters commonly provide these documents on request, and the trade flow is supported by well‑established logistics channels for bulk industrial parts.

Sourcing from Hengshui Aohong Technology Co.,Ltd. - Buyer Guidance

For gauge glass, request a material certification confirming borosilicate composition, dimensional tolerances (±0.1 mm) and a thermal‑shock test report in accordance with ASTM C 149. The oil‑resistant gasket sheet should be accompanied by a compression‑set test at 70 °C and an oil immersion resistance report, together with a safety data sheet that lists the polymer base.

When ordering PTFE gland packing, ask for a hardness measurement (Shore D), a chemical‑resistance chart for common oils, and a graphite‑content analysis if the filled grade is selected. Verify that the commercial invoice lists HS 6815.10, obtain any available ISO 9001 certificate, confirm the minimum order quantity, typical lead time of 4‑6 weeks for custom dimensions, and clarify packaging - bulk bags or sealed cartons - before finalising the purchase.

What types of gauge glass does Hengshui Aohong Technology supply?

The catalogue lists flat borosilicate gauge glass and borosilicate level gauge glass, both used for visual level measurement in industrial tanks. They are supplied as flat plates with typical thicknesses between 3 mm and 10 mm.

What material options are available for the PTFE gland packing?

All Kinds PTFE Gland Packing is offered in three material forms: virgin PTFE, graphite‑filled PTFE, and an asbestos‑PTFE composite. Each variant targets different temperature ranges and lubrication needs.

Which HS code applies to the PTFE gland packing?

The PTFE gland packing is classified under HS 6815.10, which covers gaskets, packing and similar products of plastics.

What certifications should a buyer request for these products?

Buyers should request ISO 9001 quality‑management certification, material test reports per relevant ASTM standards (e.g., ASTM D 4236 for PTFE), and any CE or RoHS declarations required for the end‑use market.

How are gauge glass and PTFE packing typically packaged for shipment from China?

Gauge glass is usually packed in foam‑lined wooden crates or bulk pallets to protect against breakage, while PTFE packing is commonly sealed in bulk bags or sturdy cartons. Both are loaded into 20‑ft or 40‑ft containers for ocean freight.

What is a common minimum order quantity and lead time for custom PTFE gland packing?

Suppliers often set a minimum order of around 500 kg for custom PTFE packing, with a lead time of 4‑6 weeks depending on the specific formulation and size.

How can a buyer verify the oil‑resistant properties of the gasket sheet?

Request an oil immersion test at 70 °C and a compression‑set test in accordance with ASTM D 395. These reports demonstrate the gasket’s resistance to oil degradation and its ability to retain sealing force.

Which regions most frequently import these industrial components from China?

Europe, Southeast Asia and North America are the primary markets that import gauge glass, oil‑resistant gasket sheets and PTFE packing for process equipment, cable sealing and related applications.