Dear Mr.Gopi..
The contact area between the stem & gland packing is known as back seat area. This back seat testing is applicable for gate & globe valve. During the testing the gland bolts should be in free condition so that no external force is applied on the gasket in the gland area.
br,
msms
On Mon, Jan 23, 2012 at 10:59 AM, Muthusrinivasan Muthuselvam <msms2k@gmail.com> wrote:
Dear Mr.Gopi..The contact area between the stem & gland packing is known as back seat area. This back seat testing is applicable for gate & globe valve. During the testing the bonnet bonnet should be in free condition so that no external force is applied on the gasket in the gland area.br,msmsOn Sat, Jan 21, 2012 at 9:31 AM, Gopi Perumal <parinitaa2010@gmail.com> wrote:
Dear all,
Anybody can explain what is mean by Backseat test in Valve Testing? (API 598)
Thanks,
P Gopi
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