JIANHAO
Your Reliable Partner for
Stainless Steel Pipe Fittings
Your Reliable Partner for
Stainless Steel Pipe Fittings
Founded in 2014, Wenzhou JIANHAO Pipe Fittings Co., Ltd. is located in
Longwan District, Wenzhou, a core hub for China’s stainless steel pipe fittings
manufacturing, with superior location, convenient transportation and mature
industrial supporting facilities.
- We focus on the R&D and production of stainless steel threaded pipe fittings,
non-standard accessories, stainless steel flanges, quick couplings and ball valves. - Our company has successfully obtained three authoritative certifications: CE, EAC and ISO9001
200+
Product Series
3000+
Projects Completed
500+ Tons
Annual Production Capacity
1000+
Customers
Professional Stainless Steel Pipe Fittings Manufacturer
We focus on the R&D and production of stainless steel threaded pipe fittings, non-standard accessories,
stainless steel flanges, quick couplings and ball valves.
stainless steel flanges, quick couplings and ball valves.
Industries We Serve
Our products are widely used in various key fields such as water supply, petroleum, environmental protection,
chemical industry, food, electric power, construction, sewage disposal, metallurgy and fire protection system supporting.
chemical industry, food, electric power, construction, sewage disposal, metallurgy and fire protection system supporting.
Oil & Gas
01
Oil & Gas
High-pressure threaded fittings and flanges for onshore and offshore pipelines.
Our stainless steel 316 fittings and ball valves are engineered for high-pressure natural gas gathering, crude oil transmission, and metering skids. Available with NPT or BSPT threads (150LB–300LB) and certified to CE & ISO9001.
01
Petrochemical & Chemical
02
Petrochemical & Chemical
Corrosion resistant solutions for aggressive media and high temperatures.
We supply SS304/316 threaded pipe fittings, flanges, and quick couplings that resist acidic and alkaline environments. Custom non standard sizes are available for reactors, storage tanks, and mixing systems.
02
Food & Beverage
03
Food & Beverage
Sanitary-grade fittings with smooth internal surfaces for hygiene safety.
Our stainless steel 304/316 threaded fittings feature electro-polished interiors to prevent bacterial growth. Ideal for dairy pipelines, brewery systems, beverage filling lines, and CIP cleaning units.
03
Water Treatment
04
Water Treatment
Quick-connect couplings and flanges for fast maintenance and installation.
Our type-DC quick couplings and stainless steel flanges enable tool-free assembly in seawater desalination, RO plants, and wastewater treatment facilities. Excellent resistance to saltwater and chlorine.
04
Power Generation
05
Power Generation
Reliable connections for cooling water, steam, and chemical dosing systems.
We provide high-strength stainless steel threaded elbows, tees, and flanges for thermal and nuclear power plants. Pressure ratings up to 300LB, with full traceability and ISO9001 quality control.
05
Marine & Offshore
06
Marine & Offshore
Marine-grade 316L fittings built to withstand harsh saltwater environments.
Our threaded pipe fittings and quick couplings are used in seawater cooling lines, ballast systems, and firewater networks on offshore platforms and vessels. Extra corrosion protection available.
06
Strict Processcreate High Durability Stainless Steel Pipe Fittings
We use high-precision automated machining equipment, such as machining centers, CNC lathes, CNC milling machines
and other processing machines, which currently reach the most advanced international synchronized level.
and other processing machines, which currently reach the most advanced international synchronized level.
We test chemical composition and hardness of incoming SS304/316 with a spectrometer. Only certified material enters production.
Raw Material Control
CNC lathes and machining centers achieve tolerances up to ±0.01mm. Each piece is inspected during production.
High-precision Machining
Pickling, passivation, or electro-polishing removes impurities and enhances corrosion resistance.
Surface Treatment
Every threaded fitting and valve undergoes hydrostatic or air pressure testing to ensure zero leakage.
Sealing Performance Test
Clean, anti-rust packaging with labeling by size and material. Ready for safe sea or air freight.
Packaging & Warehousing
Delivering Value to Global Customers
With Professional Piping Solutions
With Professional Piping Solutions
Trusted by customers in China, Europe, South America, Central and South Asia,
the Middle East, and the Eurasian Economic Union, etc.
the Middle East, and the Eurasian Economic Union, etc.
