Hygienic Connections
Clamp connections for sanitary transfer and cleaning systems.
Sanitary Fittings
Sanitary Clamps for Tri-Clamp Process Connections.
Sanitary clamps are used to connect ferrules, gaskets, valves, fittings and tubing in hygienic process systems.
304 / 316LTri-ClampHygienic ConnectionsRFQ Ready
Applications
Quick sanitary connection hardware.
Clamps are commonly sourced together with ferrules, gaskets, valves and tube assemblies.
Process Lines
Quick-disconnect sanitary assemblies for beverage process layouts.
Replacement Parts
Repeat clamp and gasket package sourcing for maintenance teams.
Sizes & Dimensions
Standard tri-clamp sizes.
Tri-clamps conform to DIN 32676 / ISO 2852 dimensional standards. Standard PN10 (10 bar) and heavy-duty PN16 (16 bar) configurations available.
| Size | DN | Clamp OD (mm) | Body Material | Wing Nut | Pressure Rating |
|---|---|---|---|---|---|
| ½" | DN15 | 50.5 | 304 / 316L | M8 | PN10 |
| ¾" | DN20 | 50.5 | 304 / 316L | M8 | PN10 |
| 1" | DN25 | 50.5 | 304 / 316L | M8 | PN10 |
| 1½" | DN40 | 64.0 | 304 / 316L | M8 | PN10 |
| 2" | DN50 | 77.5 | 304 / 316L | M8 | PN10 |
| 2½" | DN65 | 91.0 | 304 / 316L | M10 | PN10 |
| 3" | DN80 | 91.0 | 304 / 316L | M10 | PN10 |
| 4" | DN100 | 119.0 | 304 / 316L | M10 | PN10 |
Operating Conditions
Pressure-temperature rating for sanitary clamps.
Standard tri-clamps rated to PN10 (10 bar). Heavy-duty (double-pin or bolted) clamps extend rating to PN16 (16 bar) or higher.
Service Conditions
- Single-pin clamp: PN10 (10 bar) standard
- Double-pin clamp: PN10 with vibration resistance
- Bolted clamp: PN16 (16 bar) heavy duty
- Temperature range: Limited by gasket only
- Material: 304 standard, 316L for chlorides
- Torque: 5–7 N·m (M8 wing nut)
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.
DIN 32676
Tri-Clamp Connections
Dimensional standard for tri-clamp fittings.
ISO 2852
Stainless Clamp Couplings
International standard for clamp connections.
3-A 63-04
3-A Sanitary Fittings
Sanitary fittings standard for hygienic process.
ASME BPE
Bioprocessing Equipment
Surface finish, materials and design for pharma/biotech.
ASTM A276
Stainless Steel Bar
Material specification for 304/316L bodies.
EHEDG
Hygienic Equipment Design
European hygienic engineering and design certification.
EC 1935/2004
Food Contact
EU regulation on food-contact materials.
ASTM A967
Passivation
Chemical passivation treatments for stainless steel.
Product Variants
Sanitary Clamp configurations for different process roles.
Multiple variants available to match your application requirements. Browse related products for complete process line coverage.
Single-Pin Clamps
Standard tri-clamp with hinge pin and wing nut closure. Most common configuration for sanitary lines.
Request quote →
Double-Pin Heavy-Duty
Two-pin design for higher pressure service and vibration resistance.
Request quote →
Bolted High-Pressure
Bolted clamp for pressures above 10 bar or severe vibration service. Up to PN16.
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Quick-Release Clamps
Toggle-action clamps for frequent disassembly applications (sampling, batch processing).
Request quote →Technical Overview
Typical sanitary clamp RFQ fields.
Clamp selection depends on tube size, ferrule compatibility and service conditions.
| Requirement | Typical Information Needed |
|---|---|
| Product Type | Single-pin, double-pin or heavy-duty clamp by RFQ |
| Material Grade | 304 / 316L stainless steel |
| Connection | Tri-clamp sanitary ferrule compatibility |
| Size | Nominal sanitary tube / ferrule size |
| Documentation | MTR / QC by RFQ |
Engineering RFQ
Prepare a sanitary clamp RFQ.
Include size, material, clamp style, quantity and related gasket/ferrule 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 a sanitary clamp requirement?
Send clamp size, quantity, material and related ferrule/gasket requirements.
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 sanitary clamps.
Engineering and procurement questions we hear most often. For project-specific guidance, send your application details via RFQ.
What is the difference between 304 and 316L clamps?
304 clamps are standard for general sanitary service. 316L clamps have superior corrosion resistance, especially with chloride exposure or aggressive CIP chemicals.
For dairy with aggressive caustic cleaning, 316L is recommended for clamp durability. For pharma/biotech requiring 316L throughout, specify with order.
How tight should tri-clamps be tightened?
Standard torque is 5–7 N·m for M8 wing nuts. Over-tightening crushes gasket and reduces seal life — finger-tight plus quarter turn is typical practical guide.
For high-pressure service, use calibrated torque wrench. For vibration service, specify bolted (not wing-nut) clamps to prevent loosening.
When should I use single-pin vs double-pin clamps?
Single-pin clamps are standard for most sanitary applications (PN10). Double-pin clamps provide vibration resistance and slightly higher pressure capability.
For pumped lines with vibration, mixers, or rotating equipment, specify double-pin. For static lines and moderate pressure, single-pin is sufficient.
What is the difference between PN10 and PN16?
PN10 = 10 bar maximum working pressure (single-pin standard). PN16 = 16 bar (bolted heavy-duty clamps only).
Most sanitary lines operate at 3-6 bar, well within PN10. For high-pressure CIP, pump discharge, or steam lines, specify PN16 with bolted clamps.
Are clamps reusable?
Yes — stainless steel clamps are reusable as long as no damage, deformation, or stress cracking is visible. Inspect at each disassembly.
Replace if you see: bent pin, worn wing nut threads, surface cracks, deformed band. Replacement is inexpensive and prevents joint failure.
Can clamps be sterilized in autoclave?
Yes — 304 and 316L stainless clamps are fully autoclave-compatible (121°C steam). However, the gasket material limits practical autoclave use to EPDM/silicone/PTFE.
For continuous SIP service, specify clamp material to match gasket. 316L recommended for repeated thermal cycling to prevent stress corrosion.
What documentation is included?
Standard: 3.1 MTR (material certificate) with heat number traceability. Optional: dimensional inspection report, surface roughness, passivation certificate.
For pharma/biotech, request full BPE documentation including ferrite content and surface finish report (Ra ≤ 0.8 μm mill or 0.38 μm EP).