Payment & Shipping Terms:
|Structure:||Plug Disc||BW End:||AMSE B 16.10|
|Stem Materaila:||SS410 Or 17-4PH||Applications:||Water, Fuel Oi, Chemical Feed|
|Presssure:||Medium Pressure||Face To Face:||ASME B 16.34|
Plug Disc Hard Face Seat OS & Y BS1873 Globe Valve In SS Material
|Design Data and Features|
|These valves comply with requirements of applicable Standards : ANSI B16.5, ANSI B16.10, ANSI B16.25 and ANSI B16.34.|
|OS & Y construction, rising stem.|
|Seat surfaces of body and disc in all sizes are hard faced with stellite.|
|Bevel-gear type valve operators are generally furnished on sizes 10" and larger.|
|Range of body / bonnet materials|
|Range of trim materials|
|Valves can be furnished with by-passes in accordance with ANSI B16.34 or MSS SP-45, if so specified. By-pass sizes will be prepared in accordance with MSS SP-45 series A, unless otherwise specified.|
Disk & Seat & Stem of Globe valves
DISK: The most common disk designs for Globe valves are: ball disk, composition disk and the plug disk. Ball disk design is used primarily in low pressure and low temperature systems. It is capable of throttling flow, but in principle it is applied to stop and start flow.
Composition disk design uses a hard, non-metallic insert ring on the disk, which ensures a tighter closure.
Plug disk design provides better throttling than ball or composition designs. They are available in many different designs and they are all long and tapered.
SEAT: Globe valve seats are either integrated or screwed in to the valve body. Many Globe valves have backseats inside the Bonnet. Back seats provides a seal between the stem and Bonnet and prevents system pressure from building against the valve packing, when the valve is fully open. Back seats are often applied in Globe valves.
STEM: Globe valves uses two methods for connecting the disk and the stem: the T-slot and the disk nut construction. In the T-slot design, the disk slides over the stem, while in the disk nut design, the disk is screwed into the stem.