Find and compare hygienic pressure sensors and transmitters among 850 sensor families from 60 manufacturers. Enter your process connection, wetted-material and hygienic requirements to get a shortlist ranked by technical fit — not sponsorship.
Selecting a pressure sensor for food, beverage or dairy applications starts with the applicable hygienic standard — not just material compliance. Pressure sensors for these processes must meet stricter requirements than standard industrial transmitters, and related pharmaceutical or biotech applications may require similar hygienic or aseptic design criteria, though the specific certification scope must always be verified separately. The key certifications and standards are not interchangeable — a sensor that meets one may not meet another, and project specifications typically define which approvals are required. Certification alone does not determine suitability: surface finish, process connection type, seal material and CIP/SIP suitability must also match the installation.
European Hygienic Engineering & Design Group. Certification confirms the sensor design is cleanable and does not trap product. Widely required in European dairy, food and pharmaceutical processes.
North American hygienic standard for dairy and food equipment. 3-A SSI certification is widely specified in the US and Canada for CIP/SIP applications.
FDA compliance refers to materials intended for food contact. It does not by itself confirm hygienic sensor design or cleanability. USP Class VI applies to pharmaceutical elastomers. Verify both material compliance and hygienic design requirements separately.
NSF International certification for food equipment safety. Common in water treatment and food service. NSF 51 covers food equipment materials.
Standard G-thread or NPT connections are generally not suitable for product-contact hygienic processes, as they can trap product and are difficult to clean effectively. Hygienic process connections are designed for full drainability and CIP/SIP cleaning.
| Connection | Region / application | Notes |
|---|---|---|
| Tri-Clamp (ISO 2852) | Worldwide, dairy and biotech | Quick-release clamp connection. Most widely used hygienic fitting globally. |
| DIN 11851 | Europe, dairy and food | Threaded union connection. Common in European dairy and beverage installations. |
| DIN 11864 | Europe, food and beverage | Aseptic clamp, thread or flange connections for sterile processes. DIN 11864-2 is the most common aseptic fitting. |
| SMS | Nordic countries, dairy | Svensk Mejeristandard — threaded coupling system widely used in Scandinavian dairy installations. |
| VARIVENT / VARINLINE (GEA) | Dairy and beverage, Europe | Proprietary fitting from GEA, widely used in dairy processes. |
| Flush NPT variants | Selected North American installations | May be used in non-critical or application-specific installations. Must be verified against the project's hygienic design requirements. |
| Criterion | What to check |
|---|---|
| Wetted materials | 316L stainless steel is the standard for food and dairy. Hastelloy C276 for aggressive CIP chemicals. Elastomers must be FDA-compliant — EPDM for hot water and steam, PTFE for chemical resistance, FKM for oils. Verify material certificates (EN 10204 3.1). |
| Surface finish | Ra ≤ 0.8 µm (32 µin) is a common requirement for food-contact surfaces. Some applications require Ra ≤ 0.4 µm. Verify the surface finish specification covers all wetted surfaces including the diaphragm. |
| Diaphragm type | Flush diaphragm is required for viscous, sticky or particulate media. Standard diaphragm with process connection recess is not acceptable for most hygienic applications. |
| CIP/SIP suitability | Clean-in-place (CIP) and sterilise-in-place (SIP) require the sensor to withstand repeated exposure to hot caustic (NaOH), acid (HNO₃) and steam. Verify temperature and chemical ratings against your specific CIP/SIP regime. |
| Temperature rating | SIP exposes the sensor to elevated steam temperatures. Verify the maximum permitted temperature, exposure duration and any required cooling extension or recovery time for the selected device. |
| IP rating | IP69K is commonly specified for high-pressure wash-down with hot water, depending on the cleaning regime. IP67/IP68 for general wet environments. Verify the IP rating covers the complete sensor including the cable entry. |
| Certifications | Specify which certifications and material-compliance requirements are required — such as EHEDG, 3-A, NSF and applicable FDA food-contact compliance. Not all hygienic sensors carry all certifications. Verify the certificate is current and covers the specific variant. |
316L stainless steel is a material of construction, not a hygiene certification. The design of the sensor — surface finish, dead legs, drainability — determines whether it is truly hygienic. A 316L sensor with a standard G-thread connection is not suitable for food-contact applications.
EHEDG certification covers the sensor design, but the seal or O-ring material must also be separately verified for FDA compliance and chemical compatibility with the CIP chemicals used. EPDM, PTFE and FKM seals have different chemical resistance profiles.
CIP temperatures are typically 80–90 °C. SIP with steam goes considerably higher. Not all CIP-rated sensors are SIP-rated. Verify the maximum permitted temperature, exposure duration and any required recovery time against the specific SIP regime.
A flush diaphragm alone does not guarantee a hygienic installation. The pipe run, mounting angle and connection type all affect drainability. EHEDG and 3-A guidelines define installation requirements beyond the sensor itself.
Verify before specifying: Always confirm the device configuration, wetted materials, seal material, surface finish, certifications and temperature rating against the manufacturer specifications and the relevant hygienic standard. Pressure Selector provides a shortlist for further evaluation — it does not replace engineering review or certification assessment.
For promising matches, use Request Info on any result to prepare a supplier inquiry based on your application requirements.
Pressure Selector converts your application requirements — such as hygienic certification (EHEDG, 3-A, NSF), FDA food-contact compliance, process connection type, wetted materials, surface finish, CIP/SIP suitability, pressure range and output signal — into a structured shortlist of matching pressure sensors across established manufacturers.
Results are ranked by technical fit and link to manufacturer specifications for further verification. Coverage includes hygienic pressure transmitters and sensors from manufacturers including Endress+Hauser, Baumer, Honeywell, BD Sensors, Wika, Ashcroft and others. Availability of EHEDG, 3-A and NSF certification, FDA food-contact compliance and CIP/SIP suitability depends on the selected series and device configuration.