Specification Sheet
17
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POLYBONNET NITROGEN CLARIFICATION
Clarication regarding use of Taprite Polycarbonate Bonnet Regulators with Nitrogen Gas
All Taprite regulators are built and tested in accordance with UL Standard 252 for
Compressed Gas Regulators and UL 252A for Compressed Gas Regulator Accessories
Taprite primary regulators with polycarbonate bonnets and adjustment knobs are not
designed or rated for direct use with Nitrogen Gas, as Nitrogen Cylinders have a ll pressure
of 2200psi. These regulators are rated for use only with CO2 or Compressed Air Cylinders,
with ll pressures in the 850 – 900psi range.
Taprite secondary regulators with polycarbonate bonnets and adjustment knobs can safely
be used downstream of Nitrogen, Argon, CO2, or Compressed Air. This is because the high
pressure associated with the cylinder itself is reduced to a safe working pressure through
use of a primary regulator.
The imprinted message “NOT FOR USE WITH NITROGEN” seen on Taprite polycarbonate
regulators is solely a prohibition against connecting the regulator directly to a Nitrogen
Cylinder. Polycarbonate regulators should never be used as primary regulators with Nitrogen
Gas. Taprite does offer a range of primary regulators specically for use with Nitrogen; these
regulators feature zinc bonnets designed to withstand the higher pressures associated with
Nitrogen Cylinders. All Taprite secondary regulators are safe and approved for use with
Nitrogen, Argon, CO2, and Compressed Air.
If you have further questions regarding Taprite regulators and related accessories, please do
not hesitate to contact us through our website www.taprite.com.