<p class="MsoBodyText"><span lang="EN-GB">This document specifies design, type test methods, marking and instruction requirements for cylinder valves with integrated pressure regulators (VIPRs) intended to be fitted to gas cylinders, pressure drums or tubes or used as a main valve for bundles of cylinders that convey compressed, liquefied or dissolved gases.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">These are requirements for VIPRs that are in addition to those given in the relevant closure standard, for example, in ISO 10297 for cylinder valves, in ISO 17871 for quick-release cylinder valves, in ISO 17879 for self-closing cylinder valves or in ISO 23826 for ball valves. For ISO 17871, these requirements are only applicable to quick-release cylinder valves types B, C, D and E.</span></p>
<p class="Note"><span lang="EN-GB">NOTE 1<span style="mso-tab-count: 1;"> </span>If the pressure regulating system of a VIPR is acting as the primary valve operating mechanism, it is covered by the relevant closure standard, e.g. ISO 10297, ISO 17871, ISO 17879 and ISO 23826. This also includes designs where closure of the primary valve operating mechanism of a VIPR is obtained by closing the seat of the pressure regulating system.</span></p>
<p class="Note"><span lang="EN-GB">NOTE 2<span style="mso-tab-count: 1;"> </span>If the primary valve operating mechanism of a VIPR is located at the low-pressure side of the pressure regulating system, it is covered by the relevant closure standard, e.g. ISO 10297, ISO 17871, ISO 17879 and ISO 23826.</span></p>
<p class="Note"><span lang="EN-GB">NOTE 3<span style="mso-tab-count: 1;"> </span>The term “pressure receptacle” is used within this document to cover instances where no differentiation is necessary between gas cylinders, bundles of cylinders, pressure drums and tubes.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">This document does not apply to VIPRs for</span></p>
<p class="ListNumber1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">a)<span style="font: 7.0pt 'Times New Roman';"> </span></span></span><!--[endif]--><span lang="EN-GB">medical applications (see ISO 10524-3);</span></p>
<p class="ListNumber1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">b)<span style="font: 7.0pt 'Times New Roman';"> </span></span></span><!--[endif]--><span lang="EN-GB">liquefied petroleum gas (LPG);</span></p>
<p class="ListNumber1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">c)<span style="font: 7.0pt 'Times New Roman';"> </span></span></span><!--[endif]--><span lang="EN-GB">cryogenic applications.</span></p>
<p class="Note"><span lang="EN-GB">NOTE 4<span style="mso-tab-count: 1;"> </span>Additional requirements for a VIPR with a residual pressure device (RPD) are specified in ISO 15996.</span></p>
<p class="Note"><span lang="EN-GB">NOTE 5<span style="mso-tab-count: 1;"> </span>Additional requirements for pressure relief valves can exist in international/regional regulations/ standards.</span></p>
Registration number (WIID)
81027
Scope
<p class="MsoBodyText"><span lang="EN-GB">This document specifies design, type test methods, marking and instruction requirements for cylinder valves with integrated pressure regulators (VIPRs) intended to be fitted to gas cylinders, pressure drums or tubes or used as a main valve for bundles of cylinders that convey compressed, liquefied or dissolved gases.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">These are requirements for VIPRs that are in addition to those given in the relevant closure standard, for example, in ISO 10297 for cylinder valves, in ISO 17871 for quick-release cylinder valves, in ISO 17879 for self-closing cylinder valves or in ISO 23826 for ball valves. For ISO 17871, these requirements are only applicable to quick-release cylinder valves types B, C, D and E.</span></p>
<p class="Note"><span lang="EN-GB">NOTE 1<span style="mso-tab-count: 1;"> </span>If the pressure regulating system of a VIPR is acting as the primary valve operating mechanism, it is covered by the relevant closure standard, e.g. ISO 10297, ISO 17871, ISO 17879 and ISO 23826. This also includes designs where closure of the primary valve operating mechanism of a VIPR is obtained by closing the seat of the pressure regulating system.</span></p>
<p class="Note"><span lang="EN-GB">NOTE 2<span style="mso-tab-count: 1;"> </span>If the primary valve operating mechanism of a VIPR is located at the low-pressure side of the pressure regulating system, it is covered by the relevant closure standard, e.g. ISO 10297, ISO 17871, ISO 17879 and ISO 23826.</span></p>
<p class="Note"><span lang="EN-GB">NOTE 3<span style="mso-tab-count: 1;"> </span>The term “pressure receptacle” is used within this document to cover instances where no differentiation is necessary between gas cylinders, bundles of cylinders, pressure drums and tubes.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">This document does not apply to VIPRs for</span></p>
<p class="ListNumber1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">a)<span style="font: 7.0pt 'Times New Roman';"> </span></span></span><!--[endif]--><span lang="EN-GB">medical applications (see ISO 10524-3);</span></p>
<p class="ListNumber1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">b)<span style="font: 7.0pt 'Times New Roman';"> </span></span></span><!--[endif]--><span lang="EN-GB">liquefied petroleum gas (LPG);</span></p>
<p class="ListNumber1" style="mso-list: l0 level1 lfo1;"><!-- [if !supportLists]--><span lang="EN-GB" style="mso-fareast-font-family: Cambria; mso-bidi-font-family: Cambria;"><span style="mso-list: Ignore;">c)<span style="font: 7.0pt 'Times New Roman';"> </span></span></span><!--[endif]--><span lang="EN-GB">cryogenic applications.</span></p>
<p class="Note"><span lang="EN-GB">NOTE 4<span style="mso-tab-count: 1;"> </span>Additional requirements for a VIPR with a residual pressure device (RPD) are specified in ISO 15996.</span></p>
<p class="Note"><span lang="EN-GB">NOTE 5<span style="mso-tab-count: 1;"> </span>Additional requirements for pressure relief valves can exist in international/regional regulations/ standards.</span></p>
