Tungsten Carbide Choke Stem Tip or Heavy Duty Replaceable Needle Tip for Adjustable Choke Valves

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Tungsten Carbide Choke Stem Tip or Heavy Duty Replaceable Needle Tip for Adjustable Choke Valves

Name: Tungsten Carbide Choke Stem Tip or Heavy Duty Replaceable Needle Tip for Adjustable Choke Valves
Brand: Better Carbide Co., Limited
Price: 15.0 USD
Availability: InStock

Price 15.0 USD ($)/ Unit

Get a Price/Quote

MOQ : 10 Units

Tungsten Carbide Choke Stem Tip or Heavy Duty Replaceable Needle Tip for Adjustable Choke Valves Specification

Tungsten( in %)
85-92

Usage
Choke valves

Carbon %
4-6

Size
Customizable

Application
Oil & gas industry

Product Type
Tungsten Carbide Choke Stem Tip / Replaceable Needle Tip

Color
Shining

Coating Type
uncoated

Accessories
No accessory

Warranty
3 Years

Tungsten Carbide Choke Stem Tip or Heavy Duty Replaceable Needle Tip for Adjustable Choke Valves Trade Information

Minimum Order Quantity
10 Units

FOB Port
Shenzhen/Shanghai/Guangzhou

Payment Terms
Cash on Delivery (COD), Cash in Advance (CID)

Supply Ability
200 Units Per Day

Delivery Time
25 Days

Sample Available
No

Sample Policy
Free samples available with shipping and taxes paid by the buyer

Packaging Details
Standard export carton / wooden case (customized packaging available upon request)

Main Export Market(s)
North America, South America, Western Europe

Certifications
ISO 9001:2015

Tungsten Carbide Choke Stem Tip or Heavy Duty Replaceable Needle Tip for Adjustable Choke Valves About

Product Overview

Our Tungsten Carbide Choke Stem Tip is a precision-engineered, heavy-duty replaceable needle tip designed for adjustable choke valves in oil and gas wellhead equipment. Also referred to as a carbide needle tip or replaceable stem tip, this component serves as the critical wear-resistant interface that controls fluid flow in choke valves.

In adjustable choke valves, the conical stem tip works in conjunction with a tapered seat to regulate fluid pressure and flow rate. The tip of the stem is the primary wear point that withstands high-velocity fluids, abrasive sand, and corrosive media. Rather than replacing the entire choke stem when wear occurs, our replaceable tip design allows for quick, cost-effective field replacement significantly reducing downtime and maintenance costs.

Manufactured from premium tungsten carbide (cemented carbide) , our choke stem tips deliver exceptional resistance to erosion, abrasion, and corrosion making them ideal for the most demanding oilfield applications where conventional steel tips would wear out rapidly.

Key Features

1) Replaceable tip design - Quick field replacement without changing entire stem; reduces downtime and maintenance costs

2) Premium tungsten carbide construction - Ultra-highhardness for exceptional erosion and abrasion resistance

3) Precision-engineered conical profile - Ensures accurate flow control and positive shut-off with mating seat

4) Superior erosion resistance - Withstands high-velocity fluids containing sand and abrasive solids

5) Excellent corrosion resistance - Suitable for HS and CO environments (sour service)

6) Interchangeable with major OEM designs - Compatible with Cameron H2 and other industry-standard adjustable chokes

7) Long service life - Significantly outlasts conventional steel tips in erosive conditions

Technical Specifications

Parameter	Specification
Product Type	Tungsten Carbide Choke Stem Tip / Replaceable Needle Tip
Compatibility	Adjustable Choke Valves (H2 Type, Needle & Seat Chokes)
Material	Tungsten Carbide (Cemented Carbide) Premium Grade
Hardness	HRA 8992.5 (grade dependent)
Tip Profile	Conical / Tapered Needle Profile
Attachment Method	Threaded
Surface Finish	Precision-ground, polished
Pressure Rating	Compatible with valves rated up to 15,000 psi
Temperature Rating	API Temp Classes PU as standard
Material Classes	Compatible with API 6A Material Classes EE, FF, and HH
HS Code	84819090

Tungsten Carbide (Cemented Carbide) Grade Options

We offer our choke stem tips in a range of premium tungsten carbide grades to suit specific service conditions:

Grade	ISO grade	Hardness (HRA)	TRS (KSI)	Recommended Application
YG6	K20	90	335	High hardness, excellent wear resistance for general service
YG8	K30	89	350	Balanced wear resistance and toughness, common choice for choke valves
YG11	K40	88.5	435	Higher toughness, suitable for wear and abrasion resistance in choke valve applications
YG15	K40	86.5	450	Extreme impact and heavy-load applications
YN6	K20	89.0	335	Enhanced corrosion resistance; sour service (HS/CO
YN8	K30	88.0	350	High corrosion resistance; extreme HS/CO environments

Construction & Design

Replaceable Tip Design

Our choke stem tips are designed for easy field replacement. The tip can be quickly removed and replaced without replacing the entire stem assembly. This significantly reduces downtime and maintenance costs, as only the worn tip needs to be replaced rather than the complete stem.

Threaded Attachment for Easy Field Replacement

Our choke stem tips feature a precision-threaded connection that enables quick, tool-friendly field replacement without specialized equipment. This design allows technicians to replace only the worn tip not the entire stem assembly significantly reducing downtime and maintenance costs.

Thread specifications (size and pitch) can be customized to match your existing stem bodies and OEM requirements.

Precision Conical Profile

The tip features a precision-ground conical/tapered profile that works in conjunction with the valve seat to provide:

Accurate flow control

Positive shut-off when fully closed

Smooth, predictable flow characteristics

Applications

Our tungsten carbide choke stem tips 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
Well Testing & Flowback - Precise flow control during testing and cleanup operations
Hydraulic Fracturing - Withstanding high pressures, sand, and proppants
Sour Service - Suitable for wells producing HS and CO
Abrasive Service - Ideal for wells with sand production and formation solids

Why Choose Our Tungsten Carbide Choke Stem Tip?

Replaceable Tip Design Reduces Costs

Our tungsten carbide choke stem tip is designed for quick, easy field replacement. When the tip wears out, you replace only the tip not the entire stem assembly. This significantly reduces maintenance costs and minimizes production downtime.

Superior Erosion Resistance

Manufactured from premium tungsten carbide (cemented carbide) with hardness up to HRA93, our tips deliver exceptional resistance to abrasive wear from sand and other solid particles entrained in production fluids.

Precision Engineering for Accurate Flow Control

Each tip is precision-ground to exacting tolerances with a conical/tapered profile, ensuring accurate flow control and positive shut-off when mated with the valve seat.

100% Interchangeable with OEM Designs

Our choke stem tips are 100% interchangeable with major OEM adjustable choke designs, including Cameron H2 needle-and-seat chokes.

Multiple Material Grades Available

We offer a full range of tungsten carbide grades from cobalt-bonded for general service to nickel-bonded for sour service ensuring the right material for your specific well conditions.

Custom Manufacturing Available

We supply custom choke stem tips tailored to your specific drawings, thread specifications, and dimensional requirements.

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 - 3.1/3.2 certificates, full traceability

3) Dimensional Inspection - Precision measurement of all critical dimensions and thread specifications

4) Hardness Testing - Verification per grade specification (HRA 8993)

5) Surface Finish Inspection - Quality control of precision-ground conical profile

6) NDT Inspection - Non-destructive testing to ensure defect-free tips

Ordering Information

Please specify the following for an accurate quotation:

Tip Type: Tungsten Carbide Choke Stem Tip / Replaceable Needle Tip
Material Grade: YG6 / YG8 / YG11 / YG15 / YN6 / YN8
Tip Diameter: Specify (provide drawings or specifications)
Overall Length: Specify (provide drawings or specifications)
Thread Specification: If threaded attachment, specify thread size and pitch
Conical Angle: Specify (provide drawings or specifications)
Quantity & Destination Port

Need help selecting the right grade or configuration? Contact our team for recommendations based on your specific well conditions, fluid type, and operating requirements.

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