Choke bean used in the positive chokes for controlling the flowrate, and are usually mounted on or close to the wellhead equipment.High pressure gas/oil, with abrasive sand minerals passes through these chokes at high speed causing rapid wear. Bean chokes contain a replaceable insert, or bean, made from hardened steel or similar durable materials.
 

 
The technical parameters about choke seat

 
 
Main features of our choke beans
1. Choke bean size: 4/64" ~ 192/64" in increment with 1/64".
2. Medium: oil, natural gas,water, sand, including H2S
3. Tungsten carbide and ceramic choke bean are all available.
4. The bonnet connection form is union, which is more convenient to replace bean.
5. The bean orifice is made of ceramics or hard alloy with wearing resistance and washing resistance.
6. Can be customizable.
 

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

Features:
1. Use 100% tungsten carbide raw material
2. Stable chemical properties
3. Excellent performance and good wear / corrosion resistance
4. HIP sintering, good compactness
5. Blanks, high machining accuracy / precision
6. OEM customized sizes available
7. Factory’s offer
8. Strict products quality inspection

 

 

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