What are the Pressure and Temperature Ratings for Zinc Plated Steel Insert Fittings?

Zinc plated steel insert fittings are rated at 400 PSI CWP (cold working pressure) at 73.4 °F (23 °C). Generally speaking, the limiting factor in a system utilizing these insert fittings is the poly pipe.  The user must ensure that they verify the maximum pressure and temperature ratings of the poly pipe with the PE pipe manufacturer.

The chart below is to be used as a guide only for the allowable pressure and temperature ratings for zinc plated steel insert fittings.

*Insert fittings are intended for cold water applications, including irrigation, well service, and potable water applications.  For operating pressures over the stated maximum PSI or temperatures over 73.4 °F (23 °C), independent testing by the end user is recommended.

**Fittings MUST be protected from freezing temperatures where fluid expansion due to freezing could occur.

#1 - If this product is used outside of the intended cold water applications or at temperatures over the stated operating temperature rating, it is solely the user's responsibility to determine the suitability of the fitting and fitting material for the intended service.

#2 - This product is not to be used with compressed gases.