High Pressure Seal Globe Valve
The high pressure seal valves are designed in accordance with
BS1873 and ASME B16.34 for service of high temperature and high
pressure and are widely used in fossil fuel power plant. Compared
with bolted bonnet joint valves, it provides absolute reliable
sealing of the bonnet joint, so that the pressure seal valves are
more compact and rigid as well as maintenance cost-effective at
high temperature and high pressure service.
Design Features
1, Impact handwheel supplied at manufacturer's option or on
customer request.
2, Gland eyebolts are mounted to swing aside to facilitate packing
maintenance.
3, Male and female bonnet joints for Class 150 to 600 valves, and
ring joint for the Class 900 & above valves or as an option for
Class 600 valves on customer request.
4, Anti blow-out stem design with conical backseat surface to
permit repacking of valve in the fully open position.
5, Plug seat surface is standard disc design as well as spherical,
parabola or flat seating surface is optional on customer request.
6, Seat face with stellite 6 is standard design.
Technical specification
Design & manufacturing standard as per BS1873 /ASME B16.34
Face to face standard as per ASME B16.10
Fanged ends standard as per ASME B16.5
Testing & inspection standard as per API598
