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Send InquiryCemented Tungsten Carbide Choke Valve Stem or Adjustable Choke Stem for Oil & Gas Wellhead Equipment
Price 80.0 USD ($)/ Unit
MOQ : 1 Unit
Cemented Tungsten Carbide Choke Valve Stem or Adjustable Choke Stem for Oil & Gas Wellhead Equipment Specification
- Tungsten( in %)
- 85-92
- Usage
- Adjustable choke valve, christmas tree, manifold, wellhead
- Carbon %
- 4-6
- Diameter
- 10-40 Millimeter (mm)
- Application
- Oil and gas industry
- Color
- Shining
- Coating Type
- uncoated
- Accessories
- No accessory
- Length
- 75-120 Millimeter (mm)
- Warranty
- 3 years
About Cemented Tungsten Carbide Choke Valve Stem or Adjustable Choke Stem for Oil & Gas Wellhead Equipment
Product Overview
Our Cemented Tungsten Carbide Choke Valve Stem is a precision-engineered valve trim component designed for use in adjustable choke valves in oil and gas wellhead equipment. Also known as a choke stem or needle stem, this critical component works in conjunction with a choke seat to regulate the flow of fluids from wellheads, Christmas trees, choke manifolds, and production manifolds.
As a core component of the choke valve trim, the choke stem provides precise throttling control by moving relative to the seat to change the cross-sectional area of the fluid flow path. The stem tip features a precision-ground tapered profile that ensures accurate flow control and reliable sealing when fully closed.
Manufactured from premium cemented carbide (tungsten carbide) , our choke valve stems deliver exceptional resistance to abrasive wear, erosion, and corrosion making them ideal for the most demanding oilfield applications.
Key Features
1) Cemented tungsten carbide construction - Ultra-high hardness (up to 92 HRA) for exceptional wear and erosion resistance
2) Precision-ground tapered tip - Ensures accurate flow control and reliable shut-off
3) Superior corrosion resistance - Suitable for HS and CO environments (sour service)
4) High strength and rigidity - Withstands extreme pressure differentials (up to 15,000 psi)
5) Excellent erosion resistance - Resists washout caused by high-velocity fluids and abrasive particles
6) Precision-machined surface finish - Diamond-lapped to ensure smooth operation and consistent performance
7) Extended service life - Reduces replacement frequency and minimizes costly downtime
8) 100% interchangeable - Compatible with major OEM choke valve designs
Material Specifications Cemented Tungsten Carbide
We manufacture our choke valve stems using premium cemented tungsten carbide (tungsten carbide) , with grades tailored to specific well conditions:
|
Grade |
ISO Gade |
Density (g/cm3) |
Hardness (HRA) |
TRS (KSI) |
|
YL10.2 |
K30 |
14.4-14.6 |
91.5-92.5 |
520 |
|
YG8 |
K30 |
14.7-14.9 |
89-90 |
350 |
|
YG11 |
K40 |
14.3-14.5 |
87.5-88.5 |
435 |
|
WC-Ni |
-- |
14.6-14.8 |
88.5-89.0 |
400 |
Recommendation YL10.2 for most choke valve stem applications requiring high hardness and strength; YG8 for general service; WC-Ni for corrosive environments.
Technical Specifications
|
Parameter |
Specification |
|
Type |
Adjustable Choke Valve Stem / Needle Stem |
|
Compatibility |
Wellhead Chokes, Christmas Trees, Choke Manifolds |
|
Material |
Cemented Tungsten Carbide (Tungsten Carbide) YL10.2 / YG8 / WC-Ni |
|
Hardness |
89.0 92.5 HRA |
|
Surface Finish |
Diamond-lapped, mirror finish (Ra < 0.2) |
|
Pressure Rating |
Engineered for high-pressure downhole environments |
|
Tip Profile |
Precision-tapered for accurate flow control and shut-off |
|
HS Code |
84819090 |
Applications
Our cemented tungsten carbide choke valve stems are designed for use in adjustable choke valves across a wide range of oil and gas operations:
Wellhead Flow Control Regulating production flow rates from oil and gas wells
Christmas Tree Equipment Flow control on wellhead production trees
Choke & Kill Manifolds Flow control during drilling and well kill operations
Production Manifolds Managing production from multiple wells
Sour Service Suitable for wells producing HS and CO
Abrasive Service Ideal for wells with sand production
Well Testing & Flowback Precise flow control during testing and cleanup operations
Why Choose Our Cemented Tungsten Carbide Choke Valve Stem?
Precision Engineered for Adjustable Chokes
Our choke valve stems are precision-machined and diamond-lapped to exacting tolerances, ensuring accurate flow control and reliable shut-off in adjustable choke applications.
Superior Materials for Extended Service Life
Manufactured from premium cemented tungsten carbide (tungsten carbide) with hardness up to 92.5 HRA, our stems deliver exceptional resistance to abrasive wear, erosion, and corrosion significantly outlasting standard steel stems in harsh oilfield conditions.
100% Interchangeable with OEM Designs
Our choke valve stems are 100% interchangeable with major OEM adjustable choke designs, ensuring seamless compatibility with existing wellhead equipment.
Custom Manufacturing Available
We supply custom choke valve stems tailored to your specific drawings, samples, and functional requirements. Our engineering team can deliver precisely toleranced components ready for field assembly.
ISO 9001:2015 Certified
Our factory operates under a certified quality management system. Full material traceability (3.1/3.2 certificates) available upon request.
Quality Assurance
1) ISO 9001:2015 Certified - Certified quality management system
2) Material Certificate - Material certificate availabe, full traceability
3) Dimensional Inspection - Precision measurement of all critical dimensions
4) Hardness Testing - Verification per grade specification
5) Surface Finish Inspection - Quality control of finished surfaces (Ra < 0.2)
Ordering Information
Please specify the following for an accurate quotation:
Stem Diameter: Specify (provide drawings or specifications)
Overall Length: Specify (provide drawings or specifications)
Tip Profile: Tapered (Standard) / Custom (provide specifications)
Surface Treatment: Polished (Standard) / Precision-ground
Quantity & Destination Port: To calculate freight cost
Need help selecting the right grade? Contact our team for recommendations based on your specific well conditions.
Packaging & Shipping
Packaging: Standard export carton / wooden case (customized packaging available upon request)
Shipping: Worldwide delivery by express courier (DHL/FedEx/UPS), by air or by sea
Incoterms: EXW, FOB, CIF flexible terms available
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Better Carbide Co., Limited
Mr. Churchill Chen
(Manager)
Mobile : +8618867327395, +8619313258795, +9118867327395
No.007 Yujiachong Group, Qingcaochong Village, Xianyu Town, Hetang District,Zhuzhou - 412000, Hunan, China
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