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Certificazioni Caleffi


Caleffi is committed to constantly certifying our organization and products to the most important standards.

Company certifications and our product warranty

The Environmental Management System of the company's manufacturing sites and goods export procedure were quality certified.

The Occupational Health and Safety System is being certified to BS OHSAS 18001:2007, the next internal goal is to achieve the most recent energy and ethics certifications.

The quality system certifications obtained to date are attested by BSI certificate for the Quality Management System, AEOF certificate for facilitated goods export and ICIM and IQNET 14001 certificates for the environmental management system.

Caleffi qualità

Caleffi North America Product Warranty

Read the full details of our Limited Product Warranty

Company Certifications

In order to assure that our Quality Management System is in agreement with the requirements specified in the reference standard, Caleffi has undertaken to assure that customer and product requirements are identified, defined and satisfied in order to increase customer satisfaction, develop a system of continual improvement, establish pursuable business goals, achieve the organizational and relational conditions suited to promote the goals identified and have the company in its entirety comprehend the importance of the contents of the Quality policy.

Current valid certificates are:

MAY 2024: ISO 9001:2015 certification update carried out with BSI involving all Caleffi departments 
JANUARY 2022: update of ISO 9001:2015 certification with Accredia logo instead of UKAS
APRIL 2021: Caleffi achieved by BSI the updated ISO 9001:2015 certification until May 2024. The certification has been extended to VMC products. 
MAY 2018:  Caleffi achieved the updated British Standard Institution (BSI) certification until 2021 (certificate nr. FM 21654)
MAY 2017: renewal of the UNI EN ISO 9001:2015 (ICIM and IQNET certifications). With regards to the BSI certification, Caleffi undertook the 'transition' phase to the new 9001:2015 norm dispositions.
APRIL 2015:renewal of the BSI certification until May 2018.
MAY 2011: sixth renewal of the ICIM and related IQNet certification as proof of the correct maintenance of the Quality Management System and the strengthening of the company's image in an international context.
APRIL 2010: Quality Management System upgraded to the new UNI EN ISO 9001:2008 Standard.
JULY 2009: Caleffi achieved the updated British Standard Institution (BSI) certification.
JULY 2008: Our Heat Metering Systems are covered by the extension of the BSI.
JUNE 2008: Caleffi is awarded the new and prestigious Golden Label Certificate which is given to recongnize companies’extended successes.
MAY 2008: A new success - the ICIM and IQNET certifications have been renewed until 2011.

In order to supervise our high quality standards, we periodically measure our Customers' Satisfaction by a survey.
The results are useful to determine merits as well as critical points. Their resolution becomes our goal. 

The Environmental Management System is the set of processes, procedures, instruments, and models that an organisation implements and formally applies to comply with the requirements of applicable legislation. Organisations seeking and obtaining quality certification make a formal commitment to limiting both the direct effects on the environment (of their operations) and also any indirect effects (environmental issues they can exert a degree of influence on), reducing emissions, promoting waste recovery and recycling, more efficient use of resources and best environmental practices.  The priority of quality-certified organisations is in fact to adopt a policy to continuously improve their environmental performance.

Caleffi has always been aware that human and industrial activities, including those of the company itself, have repercussions on the surrounding environment, and therefore made the voluntary decision to adopt an Environmental Management System which was certified to UNI EN ISO 14001:2004 last June.  This system dictates how the company monitors and aims to continuously improve its environmental performance, the main objective being to prevent and reduce the impact of the activities it exercises.

The following certification has been achieved:

  • ICIM certification is a reliable attestation of the ability of Caleffi's Environmental Management System to meet the specific requirements and fulfil the predefined objectives;
  • IQNET certification, required by "The International Certification Network", demonstrates the equivalence of the certifications issued by its members and assures the certified quality systems of organisations are recognized internationally thereby favouring transparency in international trade.

29 May 2012: Caleffi has obtained AEOF certification - simpler customs/safer shipments - that is often requested of economic operators intending to benefit from both benefit from customs simplifications and facilitations with regard to the customs controls relating to security.

It applies to Authorized Economic Operators, i.e. subjects resident in EU customs territory, holders of an AEO certificate issued by the customs' authority of a member state on the basis of the requirements and conditions laid down by the European Commission, including the reliability and the safety of these subjects in the international supply chain.

AEOF certification is recognized across Europe (and mutually recognized by almost all countries in the western world); it originated from an agreement between the EU and USA, which various other countries have also signed (including Japan, Switzerland, Norway, Canada and China).

Being an authorized operator brings many operating and commercial benefits:

  • less documentary, scanned and physical controls  
  • priority handling of shipments when selected for checking  
  • the operator can choose where said checks are to be carried out
  • facilitated procedure to obtain the currently available custom simplifications
  • less information required in summary statements
  • preventive notification of the positive outcome of the customs control circuit regarding the summary declaration
  • the mutual recognition of security programmes with non-EU countries.

In short, it guarantees better relations with customs authorities, fewer delays in shipments, increased security and better communication between parties in the logistics chain; in other words, significant advantages for goods export.

Caleffi is very happy with the result achieved and, following the journey undertaken and completed with the constant help of authorities and collaborators, would like to thank ANIMA, the EasyFrontier service company, and Mr. Familiari for coordinating the work carried out by Novara customs officials.  

The Patent Cooperation Treaty (PCT) assists applicants in seeking patent protection internationally for their inventions, helps patent Offices with their patent granting decisions and facilitates public access to a wealth of technical information relating to those inventions.

Caleffi has international patents pending for our DIRTMAG® Series Magnetic Dirt Separators and our ThermoMix™ boiler protection valves.

The TÜV mark originates from a German equipment safety law and demonstrates that a representative sample of the product has been evaluated, tested and approved for safety to protect humans and the environment against hazards.

TÜV Rheinland has tested and approved the Caleffi 253 Series Safety Relief Valve to ANSI Z21.22 standard.

UL (Underwriters Laboratories) is a safety consulting and certification company that participates primarily in the safety analysis of electrical devices and components. UL provides safety-related certification, validation, testing, inspection, auditing, advising and training services to a wide range of clients, including manufacturers, retailers, policymakers, regulators, service companies and consumers.

Caleffi Z-one™ Series zone valves are cULus Listed.

Product Certifications

The American National Standards Institute (ANSI) is a private, non-profit organization that oversees the development of voluntary consensus standards for products, services, processes, systems and personnel in the United States. The organization also coordinates U.S. standards with international standards so that American products can be used worldwide. ANSI accredits standards that are developed by representatives of other standards organizations, government agencies, consumer groups, companies and others.


Caleffi flanged products, such as hydraulic separators, have ANSI 150 standard flanges meaning they will mate with any other products that has the same size ANSI 150 flanges.

The American Society of Mechanical Engineers (ASME), is a professional association that “promotes the art, science and practice of multidisciplinary engineering and allied sciences around the globe" via "continuing education, training and professional development, codes and standards, research, conferences and publications, government relations and other forms of outreach." ASME is thus an engineering society, a standards organization, a research and development organization, a lobbying organization, a provider of training and education and a nonprofit organization. Founded as an engineering society focused on mechanical engineering in North America, ASME is today multidisciplinary and global.


A Canadian Registration Number (CRN) refers to a number which is issued by each province/territory of Canada to the design of pressure-containing equipment. This number identifies that the design has been accepted and registered for use under that province/territory.


Caleffi makes Hydraulic Separators and Air and Dirt separators that have ASME and CRN registrations.

American Society of Sanitary Engineering (ASSE)

ASSE 1003 is the performance standard for Water Pressure Reducing Valves for Domestic Water Distribution Systems.

ASSE 1013 is the performance standard for Reduced Pressure Principle Backflow Preventers and Reduced Pressure Principle Fire Protection Backflow Preventers.

ASSE 1017 is the performance standard for Temperature Actuated Mixing Valves for Hot Water Distribution Systems.

ASSE 1070 is the performance standard for Water Temperature Limiting Devices.

ASTM International, known until 2001 as the American Society for Testing and Materials (ASTM), is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems and services. ASTM supports thousands of volunteer technical committees, which draw their members from around the world and collectively develop and maintain more than 12,000 standards.


Caleffi participates in ASTM Technical Committees.

As with all federal building projects before 2009, recipients of the American Recovery and Reinvestment Act of 2009 must comply with the previously established Buy American Act (41 USC 10a-10d) provisions by either certifying that the materials purchased for these projects meet the criteria or apply for a waiver stating that the requirements are consistent with the public interest.  All Caleffi products meet the criteria for the Buy American Act either by domestic end product definition or public interest exemption through establishment of trade with qualifying countries.

The Buy American Act restricts the purchase of supplies that are not domestic end products. It uses a two-part test to define a domestic end product:  1)  the article must be manufactured in the U.S.; and 2) the cost of the domestic components must exceed 50% of the cost of all the components.  The Act requires that procurement of covered items in excess of $3,000, the micro-purchase threshold, for supplies and construction materials must be produced in the U.S., its possessions or qualifying countries that are exempt unless the Contracting Officer determines that satisfactory quality and sufficient quantity "cannot be procured as and when needed at the United States market prices."

Caleffi products that meet the Buy American Act primary definition of domestic end product with over 50% domestic content and manufactured in the U.S. are the ASME registered vessel products (NA Series air separators, dirt separators, air and dirt separators and hydro separators) and pre-mixed glycol.

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The Trade Agreements Act FAR 52.225-12 states further that the Contracting Officer has the authority to approve a waiver to the Buy American Act under several conditions including inconsistency with public interest.  The public interest exemption covers materials originating in the following qualifying countries:  Australia, Belgium, Canada, Denmark, Egypt, Germany, France, Greece, Israel, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Switzerland, Turkey, United Kingdom, Northern Ireland and others (please refer to the Act).  All other Caleffi hydronic products are of Italian or other qualifying country origin and therefore comply with the Buy American Act per the requirements of the Trade Agreements Act.

Upon request Caleffi will provide a certified letter to this effect.

CSA International (Canadian Standards Association) is a provider of product testing and certification services for electrical, mechanical, plumbing, gas and a variety of other products. CSA International certification marks indicate that a product, process or service has been tested to a Canadian or U.S. standard and it meets the requirements of an applicable CSA standard or another recognized document used as a basis for certification. CSA International tests products for the North American and International markets against applicable standards including those of the Canadian Standards Association (CSA), Underwriters Laboratories (UL), National Sanitation Foundation (NSF), American National Standards Institute (ANSI) and other agencies.

EN 215 is a European Standard that specifies definitions, requirements and test methods for thermostatic radiator valves. This standard specifies the dimensions, the materials and the connection details of four series of straight and angle pattern thermostatic radiator valves of nominal pressure inferior or equal to PN 10. This standard can be used as reference in a CEN/CENELEC Certification Mark System on thermostatic radiator valves.

The Caleffi 200, 220 and 221 Series Thermostatic Radiator Valves meet the requirements of this standard.

The ETL Mark is proof of product compliance (electrical, gas and other safety standards) to North American safety standards. Authorities Having Jurisdiction (AHJs) across the US and Canada accept the ETL Listed Mark as proof of product safety. Intertek is an independent testing agency certified to test products to ETL standards.

The Caleffi ZSR and ZVR Switching Relays are ETL Listed by Intertek to meet UL 873 Standard.

ICC-ES is an organization that performs technical evaluations for code compliance, providing regulators and construction professionals with clear evidence that products comply with codes and standards.  To learn about Caleffi product performance, please refer to the below listed ICC-ES Evaluation Reports summarizing their findings:

Backflow Preventers with an Intermediate Atmospheric Vent :  ICC-ES Report PMG 1359
            Compliance with the following codes:  IPC, IRC and UPC for use in accordance with the U.S. and Canadian plumbing codes
            Compliance with the following standards:  ASSE 1012   

Dual Check Backflow Preventers :  ICC-ES Report PMG 1720
            Compliance with the following codes:  IPC, IRC, UPC and NPC for use in accordance with the U.S. and Canadian plumbing codes
            Compliance with the following standards:  
               ASSE 1024 – 2017, Dual Check Backflow Preventers
               CSA B64.6 – 2021, Dual Check Valve Backflow Preventers
               NSF/ANSI/CAN 61 – 2022, Drinking Water System Components – Health Effects
               NSF/ANSI/CAN 372 – 2022, Drinking Water System Components – Lead Content

Heat Meter :  ICC-ES Report PMG 1473
            Compliance with the following standards:  ASTM E3137 Standard Specification for Heat Meter Instrumentation

Low Lead:  ICC-ES Report PMG 1360
            Compliance with the following standards:
               NSF/ANSI/CAN 372, Drinking Water System Components - Lead Content
               Reduction of Lead in Drinking Water Act, California Health and Safety Code 116875
               S.3874, Reduction of Lead in Drinking Water Act
               Vermont Act 193 - The Lead in Plumbing Supplies Law
               Maryland's Lead Free Law HB.372                  

Pressure Reducing Valve:  ICC-ES Report PMG 1356
            Compliance with the following codes:  IPC, IRC, UPC and NPC for use in accordance with the U.S. and Canadian plumbing codes
            Compliance with the following standards:  ASSE 1003, CSA B356 and NSF/ANSI/CAN 61                

Product Certification:  ICC-ES Report PMG 1512
            Compliance with the following standards:  NSF/ANSI/CAN 61, Drinking Water System Component – Health Effects

Reduced Pressure Principle Backflow Preventers:  ICC-ES Report PMG 1433
            Caleffi's 574 Flowshield RP is listed by ASSE to Standard 1013. Find all of our product listed here
            Compliance with the following codes:  IPC, IRC, UPC and NPC for use in accordance with the U.S. and Canadian plumbing codes
            Compliance with the following standards:  ASSE 1013, CSA B64.4                    

Temperature Actuated Mixing Valves for Hot Water Distribution Systems:  ICC-ES Report PMG 1357
            Compliance with the following codes:  IPC, IRC, UPC and NPC for use in accordance with the U.S. and Canadian plumbing codes
            Compliance with the following standards:  ASSE 1017 and CSA B125.3                             

Water Temperature Limiting Device:  ICC-ES Report PMG 1358
            Compliance with the following codes:  IPC, IRC, UPC and NPC for use in accordance with the U.S. and Canadian plumbing codes
            Compliance with the following standards:  ASSE 1070, ASME A112.1070, CSA B125.70 and CSA B125.3                 

Vacuum Relief Valves:  ICC-ES Report PMG 1700
            Compliance with the following codes:  IPC, IRC, UPC and NPC for use in accordance with the U.S. and Canadian plumbing codes
            Compliance with the following standards:  ANSI 21.22-2015, NSF/ANSI/CAN 61, and NSF/ANSI/CAN 372

Approved for thermal energy measurement by the authority of the Minister of Industry (styled Innovation, Science and Economic Development) of Canada, Approval number AV-2474C.

NSF International is a public health and environmental organization that provides standards development, product certification and education on food safety requirements.

Caleffi SolarHD™ Heat Transfer Fluid is a solar thermal glycol fluid with NSF Nonfood Compounds Program Listed HT1 and HT2.