API 598 CF8M FLANGED GLOBE VALVE DIN 3202 ANSI 150 STEEL GLOBE VALVE

Globe valves

Details
Size:100mm
Pressure Rating: PN100
Body/Bonnet: WCB(GP240GH)
Disc: WCB(GP240GH)
Seat:13%Cr
Butt Welded Flanges
Outside screw and yoke
Bolted bonnet

Features
1. Straight patteren body design
2. OS & Y,outside screw and yoke
3. BB,Bolted bonnet
4. Yoke intergral with bonnet
5. Rising stem and handwheel
6. Loose disc,choice of plug or ball
7. Renewable seat ring
8. Impact handwheel for 10″ & above
9. Horizontal service
10. Flanged or butt weld ends
11. Available with gear operator

Carbon Steel ANSI 300 Flanged Globe Valve with metal seat. Designed and manufactured to BS 1873, Face to Face to ASME B16.10 with flanges to ASME B16.5, Tested by EN 12266-1. Stainless Steel reinforced graphite gasket and flexible graphite packing. 13CR reinforced seats and disc for greater durability and wear. Great for steam and high temperature applications. Globe Valves are also regularly used over gate valves or other manual control valves where the user wants to achieve a greater degree of flow control. As the shaft comes down it has a 'globe shape' on the bottom of it which slowly cuts down the flow before shutting off on the seat. All globe valves come with cast heat numbers to give quality assurance for testing and mil certificates.

Body designs of Globe valves

There are three primary body designs for Globe valves, namely..
 
Tee Pattern or Z-body
 

 
Angle Pattern
 

Wye Pattern or Y-body body
 

 

Disk and Seat and 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 pakking, 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.