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Quality & Certifications
Quality & Certifications

Hellan Strainer Quality

Hellan Strainers are available in models that comply with major U.S. and international standards, including those of the following organizations:

American Society of Mechanical Engineers (ASME)

Hellan Strainers are designed and manufactured in accordance with ASME Boiler and Pressure Vessel Code Section VIII, Division 1. All strainers are proof pressure tested at 150% of their recommended maximum allowable operating pressure.


Underwriters Laboratories

Non-automatic Hellan Strainers constructed of cast iron, cast steel or cast stainless steel in pipe sizes from 2″ through 14″ with screen perforations of 3/32″, 1/8″ or 3/16″ are listed with Underwriters Laboratories (Re-examination service) and are UL listed under Strainers, Pipe Line (HLCV), File EX 1708(N), “Fire Main Pipe Strainer”.


American Bureau of Shipping (ABS

Most Hellan Strainers on the site have been certified for service in fuel oil, lube oil, fresh water and sea water service by the American Bureau of Shipping. ABS has rated Hellan Strainers for 150 PSI (10.34 bars) MAWP to 740 PSI (51.02 bars) MAWP, depending on flange class, construction material and temperature of the process fluid.



Quality systems certified by DNV GL – Business Assurance to ISO-9001 International Standard.
Certificate number: CERT-09458-2006-AQ-HOU-ANAB


Lloyd’s Register

Hellan Strainers are Type Approved by the Lloyd’s Register and have met their requirements for use in fresh and salt water systems (including fire main), fuel oil systems and lubricating systems. 

CE Certified

Nonautomatic strainers cast in steel or stainless steel pipe sizes 4 inch to 12 inch can be CE certified to Pressure Equipment Directive PED 97/23/EC if requested.

ALS Mark 

The ALS mark assures consumers, retailers, and regulators that products have been rigorously tested to comply with all drinking water standard NSF61 & NSF372.


Conflict Minerals

Section 1502 of the US law known as the “Dodd-Frank Act” includes a requirement that companies using gold, tin, tungsten and tantalum make efforts to determine if those materials came from the Democratic Republic of Congo (DRC) or an adjoining country and, if so, to carry out a “due diligence” review of their supply chain to determine whether their mineral purchases are funding armed groups in eastern DRC.


American Iron and Steel (AIS) 

The Hellan Strainer Co is pleased to supply products that are in compliance with the Consolidated Appropriations Act of 2014 (Public Law 113-76) “American Iron and Steel (AIS)”


Quality Policy

The Hellan Strainer Company’s Quality Policy


International Standards

Hellan Strainers are available in models that comply with most international standards, including D.I.N., I.E.C. and Cenelec specifications.

Patent Protection

Hellan Strainers are protected by several U.S. patents. Design applications on file for new patent protection.