Concentric Reducers
Centered reduction for vertical pipe runs and gradual flow restriction.
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Reducers & Adapters
Sanitary reducers and adapters for transitioning between sizes, connections and equipment interfaces.
Concentric/eccentric reducer conceptsClamp, weld and threaded adapter optionsUseful for retrofit and maintenance needsRFQ review for A/B/C/D dimensions
Sizes & Dimensions
Standard reducer dimensions.
Concentric (centered) reducers for vertical lines and gradual flow restriction. Eccentric (flat-on-top) for horizontal lines requiring complete drainage.
| Size | Type | OD Large (mm) | OD Small (mm) | Length (mm) | Style |
|---|---|---|---|---|---|
| 2" × 1" | Conc. | 50.8 | 25.4 | 76 | Standard |
| 2" × 1½" | Conc. | 50.8 | 38.1 | 51 | Standard |
| 3" × 1½" | Conc. | 76.2 | 38.1 | 102 | Standard |
| 3" × 2" | Conc. | 76.2 | 50.8 | 102 | Standard |
| 4" × 2" | Conc. | 101.6 | 50.8 | 152 | Standard |
| 4" × 3" | Conc. | 101.6 | 76.2 | 102 | Standard |
| 2" × 1½" | Ecc. | 50.8 | 38.1 | 51 | Flat-top |
| 3" × 2" | Ecc. | 76.2 | 50.8 | 102 | Flat-top |
Operating Conditions
Pressure-temperature rating for sanitary reducers.
Reducer wall thickness matches the larger tube size. Same pressure rating as standard fittings.
Service Conditions
- Working pressure: 16 bar at ambient
- Test pressure: 24 bar (1.5× working)
- Burst pressure: > 60 bar
- Temperature range: –196°C to +400°C
- Steam SIP: +135°C compatible
- Surface finish: Ra ≤ 0.8 μm (EP option)
Actual ratings depend on size, material and operating conditions. Confirm via RFQ for project-specific requirements.
Standards & Compliance
Built to recognized sanitary and pressure standards.
Full documentation packages available including MTR, 3.1 certificates, surface roughness reports and pressure test records.
3-A 63-04
3-A Sanitary Fittings
Sanitary fittings standard for hygienic process.
ISO 2037
Sanitary Tubing
ISO standard for sanitary stainless tubing.
ASME BPE
Bioprocessing Equipment
Surface finish, materials and design for pharma/biotech.
DIN 32676
Tri-Clamp Connections
Dimensional standard for tri-clamp fittings.
ASTM A403
Wrought SS Fittings
Wrought austenitic SS pipe fittings spec.
EC 1935/2004
Food Contact
EU regulation on food-contact materials.
FDA 21 CFR
FDA 21 CFR 177
Food contact materials compliance for seats and seals.
Product Variants
Sanitary Reducer configurations for different process roles.
Multiple variants available to match your application requirements. Browse related products for complete process line coverage.
Eccentric Reducers
Flat-on-top configuration for horizontal lines requiring complete drainage.
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Technical Datasheet
Download the product-specific RFQ datasheet.
This PDF summarizes typical sizes, materials, standards, application notes and RFQ inputs for Reducers & Adapters. Use it as a preparation document before sending a quotation request.
Engineer / Contractor RFQ Support
Send this item as part of a project package, BOM or comparison quote.
For accurate sourcing, include size, connection type, material grade, finish, quantity, pressure/temperature conditions, certificates required and target delivery timing.
Technical RFQ Guide
Specification points to confirm before quotation.
These are typical sourcing fields. Final availability and compliance should be confirmed against the exact project requirement.
Types
Reducers, adapters, unions, connectors
Material
304 / 316L stainless steel
Connections
Clamp, weld, threaded, DIN, ISO, SMS
Dimensions
A/B/C/D dimensions should be confirmed for drawings
Finish
Sanitary polish by requirement
Standards
Project-specific sanitary standard compatibility
Applications
Where this product is typically used.
Equipment tie-ins
Relevant for sourcing discussions, project BOMs and maintenance replacement needs.
Tube size transitions
Relevant for sourcing discussions, project BOMs and maintenance replacement needs.
Connection standard conversion
Relevant for sourcing discussions, project BOMs and maintenance replacement needs.
Skid assembly and retrofit work
Relevant for sourcing discussions, project BOMs and maintenance replacement needs.
Related Products
Continue building the RFQ package.
Technical Product Layout
Reducers & Adapters — technical sourcing profile
Structured for engineers, contractors and plant buyers who need a clear RFQ-ready technical view before requesting pricing.
Technical Overview
Sanitary reducers and adapters for transitioning between tube sizes, connection styles and equipment interfaces.
Applications
- Equipment inlet/outlet transitions
- Process line size changes
- Skid integration
- Maintenance replacement requirements
Material Grades
- SS304 / SS316L
- Concentric and eccentric reducer options
- Tri-Clamp / weld / threaded adapters
- Polished hygienic contact surfaces
Surface Finish
Sanitary polished finish with attention to smooth transitions and cleanability.
Standards
- 3-A sanitary connection discussion
- ASTM A270 tubing compatibility
- DIN / ISO / SMS compatibility
- Project interface requirements
Pressure / TemperatureDepends on connection type, tube wall, gasket, clamp and operating temperature.
Connection TypesCommon RFQ connection formats are listed below. Final connection selection depends on plant standards and equipment interface.
Tri-Clamp adaptersWeld adaptersThreaded adaptersDIN / ISO / SMS adapters
Related Products
Use these products to build a complete RFQ package around this item.
RFQ note: Values on this page are sourcing guidance only. Final model, pressure rating, temperature rating, certificates, elastomer compatibility and compliance must be confirmed against the exact supplier datasheet and project requirement.
Contractor & Plant Buyer RFQ
Need a contractor-ready quote package or BOM support?
Send line sizes, connection standards, material grade, finish, quantity, photos/drawings and required delivery timing. We help turn unclear product needs into a cleaner RFQ package for supplier comparison.
Common Questions
Frequently asked questions about sanitary reducers.
Engineering and procurement questions we hear most often. For project-specific guidance, send your application details via RFQ.
What surface finish should I specify?
For general sanitary service, Ra ≤ 0.8 μm (32 μin) mill-polished is standard. For pharmaceutical and biotech applications, electropolished (EP) with Ra ≤ 0.38 μm is required per ASME BPE SF4.
For ultra-high-purity (WFI, vaccine production), specify SF5 (Ra ≤ 0.25 μm mirror finish). Surface roughness reports with profilometer measurements available on request.
What is the difference between 304 and 316L?
316L contains 2-3% molybdenum giving superior corrosion resistance, especially against chlorides. For dairy CIP (containing caustic), 316L is highly recommended.
304 is acceptable for utility, water and air applications. For all product-contact surfaces in food, dairy, pharma and biotech, 316L is the standard.
Can these be supplied with electropolish?
Yes, electropolished (EP) finish is available with Ra ≤ 0.38 μm (SF4) or ≤ 0.25 μm (SF5). Includes passivation per ASTM A967.
EP recommended for pharma/biotech, WFI systems, and aggressive chemical service. Adds ~2-3 weeks lead time. Surface roughness report included.
What documentation is provided?
Standard: EN 10204 3.1 MTR with heat number traceability for all parts.
Optional: surface roughness report, passivation certificate, dimensional inspection, full BPE package for pharmaceutical applications.
What is the typical lead time?
Standard configurations in 304/316L typically ship in 1-2 weeks from stock. Custom finishes or specifications: 3-6 weeks.
For project quantities, scheduled deliveries available. Provide target quantity and dates with RFQ for accurate lead time.
How are these connected to tubing?
Tri-clamp connections use a ferrule on each side with gasket and clamp ring. Weld connections are butt-welded to tubing — orbital welding recommended for hygienic service.
Specify connection type with your RFQ. Weld ends ship with bevels prepared for orbital welding. Mixed configurations (clamp + weld) available.
Are these compatible with CIP/SIP?
Yes — all sanitary fittings are designed for CIP (cleaning) and SIP (sterilization) cycles. Smooth internal surfaces and no dead-legs prevent product buildup.
For SIP at 121-135°C, ensure gasket material is rated for temperature (PTFE or silicone). EPDM is suitable for CIP only.