Viega announces that fittings for its PureFlow Press system have received ASTM International certification. The fittings have always met ASTM standards and press fittings were listed under the ASTM F877 standard, but the PureFlow press connections come under new standards – ASTM F3347 (zero lead bronze press fittings with stainless steel press sleeves) and ASTM F3348 (plastic press insert fittings with stainless steel press sleeves). They are designed for use with PEX tubing for potable and hydronic installations.
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