What are your packaging standards?

We use seaworthy export-standard packaging like reinforced crates or pallets. Customized packaging solutions are available for specific logistical or branding needs.

Can you provide samples before a bulk order?

Yes, we offer free samples for technical evaluation to ensure they meet your project's standards before proceeding with mass production.

Do you have FM and UL certificates?

Yes, we have FM and UL certification. We can also obtain Indonesian SNI, Brazilian ABNT, and almost all mainstream certifications.

Our standard MOQ is around 5 tons per order.

How is the price determined?

Price depends on size, standard (BS/DIN/ANSI), surface (black or galvanized), and quantity. Please share details for an accurate quotation.

Jianzhi High Quality Black Malleable Iron Thread Pipe Fitting Reducing Coupling

Name: Jianzhi High Quality Black Malleable Iron Thread Pipe Fitting Reducing Coupling
Brand: Hebei Jianzhi Casting Group Porcelain Insulator Caps Co., Ltd.
SKU: 2189037472

Hebei, ChinaHebei Jianzhi Casting Group Porcelain Insulator Caps Co., Ltd.

US$0.10-4.00

500 Pieces

Product specifications

Main Items

Thread

Size Range

Sample price:US$0.10/piece.Request sample

Product profile

Customization

Available

After-sales Service

1 Year

Warranty

10 Year

Model NO.

Coupling

Material

Malleable Cast Iron

Connection

Flat or Taper

Pipe Class

150

Pressure

Low Pressure

Surface Treatment

Black

Technic

Casting

Mounting Hole Diameter

1/8 - 6 Inch

Customized Support

OEM, ODM

Thread Type

NPT, BSPT

Working Pressure

1.6MPa

Product Material

Black Heart Malleable Iron (Kth330-08 / ASTM A197)

Testing

100% Air Pressure Tested

Properties

Tensile Strength≥330 MPa; Elongation≥8%

Transport Package

480×320×190cm

Specification

480×320×190cm

Trademark

JIANZHI

Origin

Hebei, China

HS Code

730719

Production Capacity

400000ton/Year

Key features

Premium Material Quality: Made from fine-grain black heart malleable iron with high tensile strength and ductility.

10-Year Warranty: Comprehensive 10-year warranty coverage for long-term reliability and peace of mind.

International Certifications: Certified with FM, UL, CE, ISO9001, and capable of obtaining SNI and ABNT.

Corrosion Resistance: Hot-dip galvanized or black finishes provide excellent resistance for various environments.

Precision Threading: Strictly compliant with BSPT, NPT standards for smooth installation and leak-proof connections.

OEM/ODM Support: Full customization support including designs, materials, and surface treatments.

Wide Size Range: Available in sizes from 1/8 inch to 6 inch to meet diverse piping requirements.

100% Quality Testing: Every product undergoes 100% air pressure testing to ensure zero defects.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceIn-stock Capacity

Hebei Jianzhi Casting Group Porcelain Insulator Caps Co., Ltd.

Hebei, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedCustomization Options: Customization from Designs, Full Customization, etc. CertifiedExport Year: 10 years CertifiedNearest Port: Tianjin PortAverage Response Time: ≤3.98h CertifiedTerms of Payment: T/T, LC, D/P

AI-Powered supplier vetting

SummaryThe supplier demonstrates substantial manufacturing scale for pipe fittings and pipe caps, with stated inventory capacity, one-month lead times in both peak and off-season periods, and broad customization options. Its products and management systems hold multiple certifications, including UL, CE, ABNT, TSE, FM, SNI, SGS, BSI, UKCA, and quality, environmental, occupational safety, after-sales service, and energy-management certifications. However, the supplier is not identified as a professional technical supplier, provides no 3D software, ODM, SDK, or recent new-product development, and lacks raw-material traceability. Overseas service infrastructure is limited: no overseas agents, branches, warehouses, showrooms, or overseas service countries are reported. Corrective-action and complaint-handling procedures are undocumented, while financial capacity is only represented by year labels and cannot be substantively assessed.

CertificationsThe supplier reports product certifications including UL, CE, ABNT, TSE, FM, SNI, SGS, BSI, and UKCA. It also reports certifications covering quality, environment, occupational health and safety, after-sales service, and energy management, providing explicit evidence of broad certification coverage.

After-Sales capabilityThe supplier reports no overseas agents or branches, warehouses, showrooms, or overseas service countries, although it has inventory capacity and accepts several service quotation and payment terms. Complaint handling and corrective/preventive action have no written procedures or records, which limits evidence of a formal after-sales management system.

R&D capabilityThe supplier reports no new products in the past year, no ODM service, no SDK, and no 3D software design service. Although it offers design-based and flexible customization, the stated evidence indicates limited documented product-development and technical innovation capability.

Production capacityThe supplier reports annual productivity of 321,500 tons of pipe fittings and 168,000 tons of pipe caps, inventory capacity, and one-month lead times in both peak and off-season periods. However, there is no valid manufacturing-capacity contract with affiliated subcontractors, so capacity governance has a stated weakness despite the reported scale.

Customization capabilityThe supplier explicitly offers customization from designs, full customization, minor customization, and flexible customization. These options are reported consistently across the supplied capability records, providing direct evidence of broad customization service availability.

Product Q&A

Q:Are you a manufacturer or trading company?

We are a professional manufacturer with dedicated production workshops and advanced machinery, ensuring rigorous quality control and full transparency.

Q:Do you maintain stock or make everything to order?

We maintain strategic inventory of standard fittings for immediate dispatch. For specialized requirements, we provide customized manufacturing based on your technical drawings.

Q:How do you guarantee product quality?

Our facilities are ISO 9001:2015 certified. Products undergo strict testing to comply with international standards like IEC, ANSI, or BS, with 100% air pressure testing.

Q:What is the standard lead time for orders?

The typical lead time is 2 to 4 weeks, depending on order volume and specific customization requirements such as surface treatments.

Q:What are your accepted payment terms?

We accept T/T (Telegraphic Transfer), L/C (Letter of Credit) at sight, and Western Union to facilitate smooth international transactions.