Product Certifications

Primary Fluid Systems products are certified to a number of standards, including CRN, CE Marking, and NSF/ANSI-61. For more details, please see below.

Canadian Registered Number Mark CE Mark CSA NSF Mark

Canadian Registration Number (CRN)

The following Primary Fluid Systems Inc. products are CRN certified for all of Canada:

TOP VALVE: Back pressure and pressure relief valves

AccuPulse: Pulsation Dampeners

PFS Injection Quills

PFS Corporation Stops

For further information on our CRN approved products, please contact one of our Technical Sales Representatives with your application or inquiry.

For more information on our products, see our Product Engineering Specification Booklet at click here.

A Canadian Registration Number (CRN) for a boiler or pressure vessel is defined by CSA B51 Clause 4.3 as:

  • consisting of a letter, four digits, and a decimal point followed by up to ten digits and/or two letters

  • the first letter and four digits are part of a sequential numbering system used by the issuing province or territory

  • the first digit or letter to the right of the decimal point indicates the province that issued the particular number

  • the following identifications are used in accordance with the code:
    1 - British Columbia
    2 - Alberta
    3 - Saskatchewan
    4 - Manitoba
    5 - Ontario
    6 - Quebec
    7 - New Brunswick
    8 - Nova Scotia
    9 - Prince Edward Island
    0 (zero) - Newfoundland
    T - Northwest Territories
    Y - Yukon Territory
    N - Nunavut

  • the letter C may follow the designation of first registration if a design is registered in all jurisdictions. No jurisdiction issues the letter C; it is a convenience for stamping once the manufacturer has received all the registrations.

  • to be eligible for use in Alberta, the CRN must have the digit 2, or the letter C, somewhere after the decimal point.

CE Marking

For selling to and within EU countries, it has become increasingly important to have CE certification and marking. For our industry of metering pump accessories, Pressure Equipment Directive (PED) 97/23/EC is applicable.

The majority of our products are classified as SEP (Sound Engineering Practice). This classification means that our products do not require CE marking or certification in order to be used within the EU.


Connection Size Range DN (Inches)

Max. Pressure Rating Bar (PSIG)

PED Category
(SEP or CE required)

Top Valve
All Models & Sizes

8 to 50 DN
(¼" to 2")

25 Bar
(350 PSIG)


PFS Injection Quill
All Models & Sizes

15 DN

10 - 207 Bar
(150 - 3000 PSIG)


PFS Corporation Stop
All Models & Sizes

15 DN

10 - 138 Bar
(150 - 2000 PSIG)


All Models & Sizes

8 DN to 20 DN
(¼" to ¾")

10 - 18 Bar
(150 - 250 PSIG)


Accu-Pulse - Some Models & Sizes SEP Conformant.
Please consult with our Technical Sales reps for more information.

For further information on PED 97/23/EC and its relation to our products, please click the following link.


CE Letter of Non-Applicability

Should you have any questions, please contact our technical sales reps.

NSF/ANSI-61 Certification

Primary Fluid Systems Inc. has recently attained certification to the NSF/ANSI-61 standard for a number of products and materials.

As of November 2016, we have CSA Group approval for the following products:

  • Accudraw PVC and Glass cylinders in all sizes and styles
  • Top Valve back pressure and pressure relief valves in all sizes and in both thermoplastic and metallic materials
  • Injection quills, both Male x Male and Female x Male, in both metallic and thermoplastic materials
  • Corporation stops, in a variety of insertion lengths, materials, and connection styles
  • Accu-Vent automatic degassing valves in our ¼”, ½”, and 1” sizes, in both CPVC and metallic materials
  • PFS Rotameter designed to measure flow rate with high accuracy.

This means that the above products are all certified to NSF/ANSI-61, and appropriate for drinking water use.

Should your project require NSF/ANSI-61 certified products, please do not hesitate to contact one of our technical sales representatives for more information.

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