Line Routing
Routing product-contact lines across hygienic process areas.
Sanitary Fittings
Industrial Buttweld Elbows & Tees
ASTM A403 wrought stainless steel buttweld elbows and tees for industrial pipe systems. 304/316L per ASME B16.9.
304 / 316LElbowsTeesTri-Clamp / Weld
Applications
Routing components for sanitary process systems.
Elbows and tees are normally sourced by size, connection type, material and quantity from drawings or BOMs.
Branch Connections
Tee and elbow packages for transfer and CIP layouts.
Project BOMs
Fitting packages supplied from project lists and drawings.
Sizes & Dimensions
Standard buttweld elbow and tee dimensions.
Long-radius (LR = 1.5×D) and short-radius (SR = 1.0×D) elbows in 90° and 45°. Equal and reducing tees for all schedules per ASME B16.9.
| NPS | OD (mm) | 90° LR (mm) | 45° LR (mm) | Tee Center | Schedule Range |
|---|---|---|---|---|---|
| ½" | 21.3 | 38 | 16 | 25 | Sch 10S–80S |
| ¾" | 26.7 | 38 | 19 | 29 | Sch 10S–80S |
| 1" | 33.4 | 38 | 22 | 38 | Sch 10S–80S |
| 1½" | 48.3 | 57 | 29 | 57 | Sch 10S–80S |
| 2" | 60.3 | 76 | 35 | 64 | Sch 10S–80S |
| 3" | 88.9 | 114 | 51 | 86 | Sch 10S–80S |
| 4" | 114.3 | 152 | 64 | 105 | Sch 10S–80S |
| 6" | 168.3 | 229 | 95 | 143 | Sch 10S–80S |
| 8" | 219.1 | 305 | 127 | 178 | Sch 10S–80S |
Operating Conditions
Pressure-temperature rating for industrial elbows & tees.
Pressure rating depends on schedule (wall thickness) and temperature. Buttweld joints develop full pipe strength when properly welded.
Service Conditions
- Sch 10S working: ~30 bar at ambient
- Sch 40S working: ~100 bar at ambient
- Sch 80S working: ~165 bar at ambient
- Temperature: –196°C to +800°C
- Material: 304/304L, 316/316L
- Hydrotest: 1.5× working pressure
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.
ASTM A403
Wrought SS Fittings
Wrought austenitic SS pipe fittings spec.
ASME B16.9
Buttweld Fittings
Factory-made wrought buttwelding fittings standard.
ASTM A312
Stainless Steel Pipe
Seamless/welded austenitic SS pipe specification.
ASME B31.3
Process Piping
Process piping design code.
PED 2014/68
Pressure Equipment
European Pressure Equipment Directive compliance.
NACE MR0175
Sour Service
Materials for sour gas service applications.
ASTM A967
Passivation
Chemical passivation treatments for stainless steel.
EN 10204 3.1
Material Certificate
Material test certificate with traceability.
Product Variants
Industrial Elbow & Tee configurations for different process roles.
Multiple variants available to match your application requirements. Browse related products for complete process line coverage.
90° Long Radius Elbows
Standard 90° elbow with 1.5×D bend radius. Most common for general industrial service.
Request quote →90° Short Radius Elbows
90° elbow with 1.0×D radius for tight installations. Higher pressure drop.
Request quote →45° Elbows
45° bend for line offsets and direction changes. Lower turbulence than 90°.
Request quote →Equal & Reducing Tees
Three-port branch fittings — equal (same size all ports) or reducing.
Request quote →Technical Overview
Typical elbow and tee RFQ fields.
Dimensional confirmation should follow supplier drawings and project specifications.
| Requirement | Typical Information Needed |
|---|---|
| Product Type | 90° elbow, 45° elbow, equal tee, reducing tee by RFQ |
| Material Grade | 304 / 316L stainless steel |
| Connection | Tri-clamp, weld end or mixed connection by RFQ |
| Size | Nominal sanitary tube size / OD |
| Documentation | MTR / finish notes / drawings by RFQ |
Engineering RFQ
Prepare an elbows & tees RFQ.
Include fitting type, size, connection, material, quantity and drawing/BOM references.
- Size / connection / material grade
- Quantity and target lead time
- Drawing, BOM or existing part reference
- Documentation and finish requirements
Documentation by RFQ
Material certificates, finish notes, inspection requirements, heat traceability and supplier documentation can be included in the quotation package.
Have an elbows or tees requirement?
Send fitting list, sizes, connection types, material and quantity.
Engineering Documentation
Technical Datasheet Available
Download the product datasheet for technical specifications, dimensional references, material data, applicable standards and RFQ guidance. Suitable for procurement, engineering review and project documentation.
Common Questions
Frequently asked questions about industrial elbows & tees.
Engineering and procurement questions we hear most often. For project-specific guidance, send your application details via RFQ.
What is the difference between buttweld and socket-weld?
Buttweld: pipe ends butted together and welded around the joint — preferred for ≥2" pipe and high-pressure service. Socket-weld: pipe inserted into socket and welded around outside — easier for small bore (≤2") but creates a crevice.
For sanitary or high-purity service, neither is ideal — use orbital-welded sanitary fittings instead. Industrial socket-weld is fine for utility and low-criticality service.
When should I use 304 vs 316L?
304: general-purpose stainless for water, steam, mild chemicals, structural. 316L: 2-3% molybdenum for chloride resistance, marine, aggressive chemicals.
For coastal, brackish water, or chemical service, specify 316L. For dry indoor utility, 304 is more economical. For sour gas (H2S), specify NACE-compliant material.
What schedule fittings should I match to my pipe?
Fittings must match pipe schedule. Sch 10S pipe → Sch 10S fittings. Same OD, same wall thickness, same pressure rating.
Sch 40S is most common for general industrial. Sch 80S for high-pressure or aggressive service. Always confirm pipe schedule before ordering fittings.
Are these NACE-compliant for sour service?
NACE MR0175 compliance available on request. Specifies hardness limits, chemistry restrictions and welding requirements for H2S service.
Required for oil & gas applications with sour gas. Documentation includes NACE compliance certificate with mill test report.
What documentation is provided?
Standard: EN 10204 3.1 material test report with heat number traceability. Optional: dimensional inspection report, NACE compliance, charpy impact test.
For critical service (pressure vessels, sour gas, low-temperature), specify additional inspection. PED 2014/68 certification available for European projects.
What lead time should I expect?
Standard sizes (½" to 4") in stock or short lead time. Larger sizes (6"+) or special schedules: 4-8 weeks. Custom alloys or NACE: 6-12 weeks.
For project quantities, contact for scheduled delivery. Most common sizes maintained in inventory for fast shipment.
Can these be supplied with PED certification?
Yes — Pressure Equipment Directive (PED 2014/68/EU) compliance for pressure-containing fittings available. Required for European pressure systems.
Includes notified body assessment, material traceability, and CE marking. Specify with RFQ — affects material sourcing and certification process.