Audited Supplier
flow control tungsten carbide petrochemical machinery choke valve 
As the most common parts used in the positive choke valve to control the flow, Aseeder provided Choke bean and Choke Stem has features as below: Same as Cameron type H2 big john choke bean, SS410 Stainless Steel lined with Tungsten Carbide (C10 or C25) , Highly efficient anti-corrosive and abrasive wear.
Specific diameter,:Graduations of 1/64-132 inch, can be as large as 3 inches.
QPQ treatment : surface hardness Property much improved. New braze craft applied to keep more steady connection, see the diagram:
Product Parameters:
| TYPE | Dimension (mm) | Material Recommended | |||||
| D | d1 | d | L | α° | |||
| Valve Core | 52-80 | 40-70 | 10-40 | 75-120 | 10-45 | Tungsten+Cobalt | |
| TYPE | Dimension (mm) | Material Recommended | |||||
| D | d | L | |||||
| Valve Seat | 75-100 | 55-70 | 20-80 | Tungsten+Cobalt | |||
Choke stem and seat are the key parts for ajustable choke valves in wellhead equipment . Assembled with tungsten carbide tips and SS410 body .
Tungsten Carbide Materials Grade As Below:
| Aseeder Grade | Co (Wt %) | Density (g/cm3) | Hardness (HRA) | TRS (≥N/mm²) |
| ZY11-C | 9.0-11.0 | 14.33-14.53 | 88.6-90.2 | 2800 |
| ZY15-C | 15.5-16.0 | 13.84-14.04 | 85.6-87.2 | 2800 |
| ZY15X | 14.7-15.3 | 13.85-14.15 | ≥89 | 3000 |
| ZY20 | 18.7-19.1 | 13.55-13.75 | ≥83.8 | 2800 |
| ZY06X | 5.5-6.5 | 14.80-15.05 | 91.5-93.5 | 2800 |
| ZY08 | 7.5-8.5 | 14.65-14.85 | ≥89.5 | 2500 |
| ZY09 | 8.5-9.5 | 14.50-14.70 | ≥89 | 2800 |
| ZY10X | 9.5-10.5 | 14.30-14.60 | 90.5-92.5 | 3000 |
32,000 Square Meters Factory:
Machining Facilities:
Seed Team:
