Flange Reducer
Flange Reducer
Sanitary Reducer
Pipe Reducer
Flange Reducer

Stainless steel sanitary PTFE lined flange industrial pipe reducer

JN-FT-23 102-1
Size： DN25 - DN600 (1" - 24") customizable
Grade： Stainless Steel 304 / 316L / Carbon Steel
Standard： GB/T 9119, HG20592, ANSI B16.5, DIN, JIS
Working pressure: PN10 / PN16 / Class150
Test pressure: 1.5 times of working pressure

Temperature Range： -20℃ to +260℃

PTFE seals: Molded PTFE lining, corrosion resistant, zero leakage

Viton seals: High temperature & oil resistant, suitable for harsh working conditions
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Stainless steel sanitary PTFE lined flange industrial pipe reducer
 
TheStainless Steel Sanitary PTFE Reducer is a combination of sanitary and industrial grade flanges with a PTFE lining. The main body is made of stainless steel, with an inner PTFE anti-corrosion layer and a flange connection. It balances hygiene and corrosion resistance, unlike purely industrial grade reducers without sanitary treatment or purely sanitary grade reducers without PTFE lining. This product is suitable for sanitary corrosion-resistant pipelines in the food, pharmaceutical, and fine chemical industries. Installed at pipe diameter transitions, its core function is to achieve a smooth transition while resisting media corrosion, ensuring pipeline cleanliness and preventing contamination. It is mainly available in concentric and eccentric types, both compatible with both sanitary and industrial flange standards, meeting the pipeline diameter transition requirements under both cleanliness and corrosion protection conditions.
 
Stainless Steel Sanitary Reducer​differs from ordinary models. Its core advantage lies in simultaneously meeting sanitary-grade cleanliness and industrial-grade corrosion resistance,whereas ordinary models typically satisfy only one of these requirements and lack dual adaptability. Moreover, ordinary models often suffer from poor PTFE lining adhesion, easy delamination, and inadequately processed flange sealing surfaces, resulting in higher leakage risks. Our product employs 304/316L stainless steel integrally forged flanges,with PTFE linings that are seamlessly bonded to the pipe wall through high-temperature sintering,and precision-machined sealing surfaces. It also supports customization of non-standard dimensions,offering far superior corrosion resistance and leak-tightness compared to industry peers, and demonstrates greater stability in complex working conditions that require both cleanliness and corrosion resistance.
 

Accessories

 Component & Material Table
  • Main Body & Flange: 304/316L Stainless Steel (industrial-grade forging)
  • Inner Lining Layer: PTFE molded lining (anti-corrosion, high temperature resistant)
  • Flange Gasket: PTFE/Viton (sealing, anti-aging, corrosion resistant)
  • Connection Fastener: Carbon steel/Stainless steel bolt (high strength, anti-loosening)
  • Seal Surface: Precision machined PTFE composite layer (zero leakage, tight fitting)
Product Parameter Details
  • Material: Main body: 304/316L stainless steel; Lining: molded PTFE; Gasket: PTFE/Viton
  • Structure Form: Standard: concentric flanged reducer; Optional: eccentric flanged structure
  • Pressure Rating: PN10/PN16/Class150 (working pressure); Test pressure: 1.5× working pressure
  • Function: Pipe diameter transition, flow adjustment, anti-corrosion conveying, medium isolation
  • Grade Classification: Hygiene grade: 3A/DIN11851; Industry grade: chemical/anti-corrosion grade for dual working conditions
  • Specification Match: Standards: ANSI B16.5, DIN, GB, HG; Size range: 1/2"- 24"customizable
  • Certification Grade: Hygiene certification: FDA; Safety certification: CE, ISO 9001
  • Installation Direction: Horizontal/vertical installation; fixed flange connection, no direction restriction
  • Customization Service: Custom size, special lining material, eccentric structure, sample support for testing
Stainless steel sanitary PTFE lined flange industrial pipe reducer
 
Feature (F)、Advantage (A)、Benefit (B)
  1. Raw Material:
  • F: 100% virgin 304/316L stainless steel for body and flange; integral molded PTFE lining
  • A:Strong corrosion resistance; no medium penetration; hygienic and non-polluting
  • B: Safe for hygienic & harsh chemical applications; extends pipeline service life
  1. Processing Technology:
  • F: Integral forging forming; full cavity lining; precision flange sealing surface machining
  • A: No lining delamination; no dead legs; tight fit without gaps
  • B: Easy to clean and self-drain; meets CIP/SIP standards; eliminates blockage risks
  1. Structure Feature:
  • F:Flange fixed connection; concentric/eccentric structure; full PTFE lining coverage
  • A:No lining delamination; no dead legs; tight fit without gaps
  • B: Adapts to complex pipeline layouts; reduces installation failure; ensures stable conveying
  1. Core Accessory Feature:
  • F: Forged standard flange; precision bolt hole positioning; integrated lining seal
  • A: High connection strength; good sealing consistency; easy on-site assembly
  • B:Low maintenance cost; reduces pipeline leakage; suitable for long-term continuous operation
  1. Seal Ring Feature:
  • F:Integral molded PTFE lining; high temperature and anti-aging property
  • A:Excellent acid/alkali resistance; wide working condition adaptability; zero leakage
  • B:adapts to -20℃~260℃ working conditions; prevents corrosion failure; lowers replacement cost
 
Stainless steel sanitary PTFE lined flange industrial pipe reducer
Interface Mode：Flange type connection (DIN/ANSI/GB/3A standard); customizable concentric or eccentric ends
Production & Processing Method：Full CNC precision machining; one-piece forging forming; seamless lining without dead space
Surface Treatment：Internal smooth PTFE lining; external passivation and anti-corrosion; flange precision grinding finish
Raw Material Processing Method：Body and flange: 304/316L stainless steel forging (high density, non-porous); lining: molded PTFE
Structure Mode:Standard concentric flange reducer; optional eccentric structure and full lining design
Seal Ring Material Options：Molded PTFE, Viton (FKM); FDA and 3A certified for sanitary and corrosion resistant applications
Sealing Method：Full-face precision sealing with zero clearance lining; tight flange seal for leak-free performance
 
 
 

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