Seamless Reducer
Seamless Reducer
Seamless Reducer
Seamless Reducer
Seamless Reducer

Stainless Steel Polished Seamless Sanitary Welded Pipe Fitting Reducer

JN-FT-23 1021
Size：DN10 - DN200 | 1/2" - 8"
Grade：SS304 / SS316L
Standard：DIN 11850, SMS, 3A, ISO, BS
Working pressure: PN10 / PN16 / 150PSI
Test pressure: 1.5 × Working Pressure
Temperature Range：-20℃ ~ +200℃
PTFE seals：Not applicable
Viton seals：Not applicable
Quantity:
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Stainless Steel Polished Seamless Sanitary Welded Pipe Fitting Reducer
 
Stainless Steel Polished Seamless Sanitary Welded Pipe Fitting Reducer are pipe fittings made Welded Reducer of 304/316L stainless steel through Seamless Reducer seamless stamping or forging, featuring high strength and heavy-duty corrosion resistance for harsh industrial conditions. They are mainly used at pipeline diameter transition pointsin industries such as chemical, petroleum, water treatment and power, enabling smooth connection between pipes of different sizes to avoid fluid turbulence and pressure loss. Based on structure, they are divided into Sanitary Reducer concentric reducers (coaxial ends for stable flow) and eccentric reducers(non-coaxial ends to prevent liquid/gas accumulation), widely applied in industrial fluid systems.
 
TheStainless Steel Polished Seamless Sanitary Welded Pipe Fitting Reducer differs fundamentally from ordinary reducers in its robust seamless construction, high-precision dimensional control, and industrial-grade corrosion resistance. Ordinary reducers mostly use low-grade carbon steel, have rough surfaces and weld defects, failing to meet industrial pressure and durability standards. Our products adopt high-purity 304/316L seamless base material with integral forging forming, uniform wall thickness, and reinforced connection ends. They are leak-free, pressure-resistant, and far superior to ordinary products on the market in durability, stability, and adaptability to high-standard industrial pipelines.
 

Accessories

 Component & Material Table
  • Main Pipe Body: 304/316L Stainless Steel (seamless cold forming)
  • Welded End: 304/316L Stainless Steel (mirror polished, flush finish)
  • Outer Surface: 304/316L Stainless Steel (mechanical polished finish)
  • Inner Surface: 304/316L Stainless Steel (electro-polished, hygiene grade)
  • Transition Section: 304/316L Stainless Steel (integral stamping, no welds)
Product Parameter Details
  • Material:Main body: 304/316L stainless steel; Surface: mirror & electro-polished
  • Structure Form: Standard: concentric reducer; Optional: eccentric reducer structure
  • Pressure Rating: PN10/PN16/150PSI (working pressure); Test pressure: 1.5× working pressure
  • Function: Pipe diameter transition, smooth medium flow, no turbulence or residue
  • Grade Classification: Hygiene grade: 3A/DIN 11851; For food, beverage, pharmacy and biotech
  • Specification Match: Standards: DIN, SMS, 3A, ISO; Size range: 1/2"– 12"customizable
  • Certification Grade: Hygiene certification: 3A, FDA; Safety certification: CE, ISO 9001
  • Installation Direction: Horizontal/vertical installation; welded connection, no direction restriction
  • Customization Service: Custom size, special length, eccentric design, sample support for testing
Stainless Steel Polished Seamless Sanitary Welded Pipe Fitting Reducer
 
Feature (F)、Advantage (A)、Benefit (B)
  1. Raw Material:
  • F: 100% virgin 304/316L industrial-grade stainless steel for main body; seamless forged base material
  • A: Ultra-high corrosion resistance; no rust or material precipitation; fully compliant with industrial pressure standards
  • B: Safe for chemical, petroleum, water treatment and power systems; eliminates medium pollution and leakage risks
  1. Processing Technology:
  • F: Full CNC precision forming; inner/outer surface passivation treatment; no welding defects or residual gaps
  • A: High structural density; no internal stress; easy to install and maintain
  • B:Reduces pipeline failure rate; extends service life; lowers long-term operation and maintenance costs
  1. Structure Feature:
  • F:Concentric/eccentric design; welded/threaded/flanged connection ends; seamless transition structure
  • A:Smooth fluid flow; stable connection; flexible adaptation to different pipeline layouts and pressure ratings
  • B: Cuts installation and debugging time; adapts to complex industrial piping; minimizes flow turbulence and pressure loss
  1. Core Accessory Feature:
  • F: Integral formed reducer body; precision-machined connection ends; reinforced wall thickness for high-pressure scenarios
  • A:High dimensional accuracy; no burrs or gaps; firm and durable without deformation under heavy load
  • B:Low maintenance frequency; stable performance in long-term use; suitable for large-bore and high-pressure industrial working conditions
  1. Seal Ring Feature:
  • F:High-temperature and corrosion-resistant sealing structure; compatible with industrial-grade sealing materials
  • A:Excellent sealing performance; wide adaptability to harsh working conditions; wear and scratch resistance
  • B:Adapts to -40°C~450°C working conditions; prevents fluid leakage; avoids structural aging failures
 
Stainless Steel Polished Seamless Sanitary Welded Pipe Fitting Reducer
 
Interface Mode：Weld-type fixed connection (DIN/SMS/3A/ISO standard); customizable concentric/eccentric structure
Production & Processing Method：Full CNC precision machining; one-piece stamping shaping; seamless forming without welding dead corners
Surface Treatment：Inner cavity mirror polishing (Ra ≤ 0.8μm); outer surface electrolytic polishing/passivation; sanitary-grade anti-corrosion treatment
Raw Material Processing Method：Reducer body: 304/316L stainless steel seamless forging (high structural density, no porosity); pipe end: precision stamping/forming
Operation Mode：Fixed welded installation; standard concentric/eccentric layout; customizable installation orientation
Seal Ring Material Options：Food-grade PTFE, EPDM, Viton (FKM); FDA/3A certified for hygienic pipeline applications
Sealing Method：Full-surface smooth sealing (zero clearance transition between pipe diameters); high-precision welded seal for leak-free performance
 
 

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