About J-Flow Valve & Fitting Industry Co. - Industrial Valves & Gauges Supplier in China

J-Flow Valve & Fitting Industry Co. is based in China and currently lists seven active products across its catalogue. The product set includes a Resilient Seated Gate Valve, two Universal Flange Adaptors (model af101 with HS code 7307.93 and model af102 with HS code 7307.19) made from ductile iron EN‑GJS500‑7, a Gibault Joint for PVC Pipe (model Cf600) classified under HS code 730719 and also fabricated from ductile iron EN‑GJS500‑7 with hot‑dip galvanized fasteners, two Universal Couplings (cf101 and cf102), and a Stepped Coupling (cf200). The flanges and couplings are grouped under the HS chapter 73 family for iron and steel pipe fittings. The catalogue does not list any certifications, so buyers should verify compliance documents independently.

The listed items fall into three core categories: flanges, industrial couplings, and industrial valves & gauges. In the global market, ductile‑iron flange adaptors are commonly produced to EN 1092‑1 specifications and supplied with pressure ratings such as PN 10, PN 16, or higher. Industrial couplings of the universal type are typically sized according to ISO 7005 dimensions and may feature hot‑dip galvanized fasteners for corrosion resistance. Gate valves of the resilient seated type are generally designed to meet API 6D or ASME B16.34 standards, with pressure classes ranging from 150 psi to 600 psi. Buyers can therefore expect material grades, dimensions, and pressure ratings consistent with these industry norms.

Product Range and Specialties of J-Flow Valve & Fitting Industry Co.

J‑Flow’s catalogue comprises a resilient seated gate valve, two universal flange adaptors (af101, af102), a gibault joint for PVC pipe, two universal couplings (cf101, cf102), and a stepped coupling (cf200). All ductile‑iron components are specified as EN‑GJS500‑7, a grade offering a minimum tensile strength of 500 MPa and good ductility for pipe‑fitting applications. In the broader industry, ductile‑iron flanges are often supplied in classes such as PN 10, PN 16, and PN 25, and may carry a CE marking when intended for the European market. Couplings are frequently offered with interchangeable sleeves and are tested for axial load capacity, typically expressed in kilonewtons (kN). Gate valves with resilient seats are usually rated for full‑turn operation and feature a body pressure rating that aligns with API 6D Class 150 or Class 300.

Standard packaging for these iron fittings includes wooden crates on pallets, each crate labelled with the HS code and a material certificate. Buyers often request mill test reports (MTR) confirming chemical composition and mechanical properties, as well as conformity to ISO 9001 quality management where applicable.

Trade and Export Information - J-Flow Valve & Fitting Industry Co.

China is a major exporter of ductile‑iron pipe fittings, with the majority of shipments destined for Southeast Asian infrastructure projects, Middle‑East water distribution networks, and European industrial plants. The HS codes 7307.19, 7307.93 and 730719 fall under chapter 73, which is subject to customs inspections for material compliance and anti‑dumping duties in several jurisdictions. Typical incoterms used by Chinese fitting manufacturers are FOB Shanghai or CIF Shanghai, and container loads range from 20‑ft (approximately 12‑15 metric tonnes) to 40‑ft (25‑30 metric tonnes) depending on product dimensions.

Importers commonly require CE marking, PED (Pressure Equipment Directive) certification for European markets, and ISO 9001 certification for quality assurance. Documentation such as a mill test certificate, a declaration of conformity, and a packing list with HS codes are standard. For bulk orders, wooden pallets are secured with steel strapping, and moisture‑resistant inner liners are used to prevent corrosion during sea transit.

Sourcing from J-Flow Valve & Fitting Industry Co. - Buyer Guidance

Prospective buyers should request the mill test report for each ductile‑iron item to verify the EN‑GJS500‑7 grade, tensile strength, and carbon equivalent. Confirmation of the pressure rating (e.g., PN 16) and compliance with EN 1092‑1 for flanges or ISO 7005 for couplings should be obtained before finalising the order.

Samples of the resilient seated gate valve and a representative flange adaptor can be requested to assess dimensional tolerances and surface finish. Verify that the supplier can provide a CE declaration of conformity or PED test report if the shipment is intended for the EU, and confirm packaging dimensions to ensure compatibility with container loading plans.

What product categories does J‑Flow offer?

J‑Flow lists flanges, industrial couplings and industrial valves & gauges, specifically a resilient seated gate valve, universal flange adaptors (af101, af102), a gibault joint for PVC pipe, universal couplings (cf101, cf102) and a stepped coupling (cf200).

Which HS codes are associated with J‑Flow’s products?

The catalogue provides HS code 7307.19 for the universal flange adaptor af102, 7307.93 for adaptor af101, and 730719 for the gibault joint Cf600; the remaining items fall under the general HS chapter 73 family for iron and steel pipe fittings.

What material grade are the listed fittings made from?

All items that specify material are manufactured from ductile iron EN‑GJS500‑7; the gibault joint also includes hot‑dip galvanized fasteners.

What standards should buyers check for these fittings?

Buyers typically verify compliance with EN 1092‑1 for ductile‑iron flanges, ISO 7005 for couplings, and API 6D or ASME B16.34 for gate valves, including pressure classes such as PN 16 or Class 150.

Which certifications are commonly required for imports of these products?

Importers often request CE marking, PED certification for the EU, and ISO 9001 quality‑management certification; mill test certificates and material test reports are also standard.

How are the products usually packaged for export?

The standard export packaging uses wooden crates stacked on pallets, each crate labelled with the appropriate HS code and accompanied by a packing list and material certificates.

What are typical lead times and minimum order quantities?

For Chinese ductile‑iron fittings, manufacturers generally quote a lead time of 4‑6 weeks after order confirmation, with minimum order quantities ranging from one container load (approximately 12‑15 tonnes for a 20‑ft container) to larger bulk shipments.