Adjustable Choke Valve Stem And Seat are made by cemented carbide tip and Stainless steel,it it used for adjustable chokes.The sizes can be made
according to customer's drawings.
Adjustable Choke Valve Stem And Seat
Choke stem and seat are the key parts for ajustable choke valves in wellhead equipment .
1.Material:Tungsten carbide tips and stainless steel(304,316,304L,316L) body.( which provides optimum wear resistance in erosive conditions.)
2.Various kinds of cermented carbide grades are available for the tips.
3.Size:usually made as customer's drawings.
4.HIP sintering,good compactness,stable chemical properties.
5.Factory's offer
6.Advanced production line and inspection equipments to ensure high quality products.
Hardened alloy steel stems and seats are widely used in adjustable needle valves and positive choke valve assemblies. However, many of our domestic and international customers tend to prefer our adjustable choke valve stems with sintered cemented carbide tips. The overall sintered solid carbide tips, combined with our special structural design, makes our tungsten carbide choke valve stems more wear-resistant, corrosion-resistant, with longer service life, reducing replacement costs. Therefore, they are more welcomed by customers.And the matching valve seats, because they are made of integral tungsten carbide material,its advantage is more obvious.
Common Grades Of Tungsten Carbide tips
Usually,we have below grades for your choosing,if you have special needs,please contact us for more details.
Grades | Hardness (HRA) | Density (g/cm3) | T.R.S. (N/mm2) | ISO |
YG6 | ≥91 | 14.9 | ≥1900 | K20 |
YG8 | ≥90 | 14.8 | ≥2080 | K20 |
YN6 | ≥88.5 | 14.5 | ≥1800 | |
YN8 | ≥87.5 | 14.3 | ≥2000 |
E-mail: sales@ztcarbide.com
Add: No.1 of Longxin international building, No.255 of Tongxia Road,Shi Feng District, Zhuzhou Hunan Province,China
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