Tungsten Carbide Lined Choke Seat - API 6A Compatible

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Tungsten Carbide Lined Choke Seat - API 6A Compatible

Price 50.0 USD ($)/ Unit

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MOQ : 1 Unit

Tungsten Carbide Lined Choke Seat - API 6A Compatible Specification

Usage
Adjustable choke valve, christmas tree, wellhead

Tungsten( in %)
85-92

Carbon %
4-6

Size
customizable

Application
ail & gas industry, chemical industry

Product Type
Needle & Seat Style Adjustable Choke Seat

Color
shining

Coating Type
uncoated

Accessories
None

About Tungsten Carbide Lined Choke Seat - API 6A Compatible

Product Overview

The Tungsten Carbide Lined Choke Seat is a precision-engineered valve trim component designed for use in adjustable choke valves in oil and gas wellhead equipment. Also known as the needle-and-seat choke seat, this component works in conjunction with a choke stem (needle) to regulate the flow of fluids from wellheads, Christmas trees, choke manifolds, and production manifolds.

As a critical valve trim component, the choke seat provides a durable sealing and throttling surface against which the needle (stem) moves to control the flow rate. The combination of the needle and seat forms the core of an adjustable choke valve, enabling operators to precisely regulate production flow and maintain optimal well performance.

In an adjustable choke, the needle moves relative to the seat to change the cross-sectional area of the fluid flow path. When the needle contacts the seat, the opening is completely covered, stopping fluid flow entirely. This needle-and-seat choke principle is the foundation of adjustable choke technology.

Key Features

1) Premium tungsten carbide lining - Exceptional resistance to abrasive wear from sand and solid particles in production fluids

2) Superior corrosion resistance - Suitable for HS and CO environments (sour service)

3) Precision-machined sealing surface - Ensures reliable sealing and precise flow control

4) High strength and rigidity - Withstands extreme pressure differentials up to 15,000 psi

5) Excellent erosion resistance - Resists erosion caused by high-velocity fluids

6) Extended service life - Reduces replacement frequency and minimizes costly downtime

7) 100% interchangeable - Compatible with major OEM adjustable choke designs

Tungsten carbide grade chart:

Grade	ISO Gade	Density (g/cm3)	Hardness (HRA)	TRS (KSI)
YG6	K20	14.9-15.1	90-91	335
YG8	K30	14.7-14.9	89-90	350
YG9	K30	14.6-14.8	88.5-89.5	375
YG11	K40	14.3-14.5	87.5-88.5	410
YL10.2	K30	14.4-14.6	91.5-92.5	520

Technical Specifications

Parameter	Specification
Type	Needle & Seat Style Adjustable Choke Seat
Compatibility	H2 Type / Cameron Type / Industry Standard
Body Material	410 Stainless Steel (Standard)
Liner Material	Tungsten Carbide (C10/C25 or equivalent grade)
Alternative Body Material	17-4 PH Stainless Steel (available upon request)
Alternative Liner Material	Ceramic (available upon request)
Surface Treatment	Mirror finish / QPQ treatment available
Pressure Rating	Up to 15,000 psi WP
Nominal Bore Sizes	1-13/16 to 7-1/16 (46mm 180mm)

Material Specifications

Body Material 410 Stainless Steel

Provides excellent strength and corrosion resistance
Suitable for sour service applications (with appropriate heat treatment)
Widely accepted in the oil and gas industry for choke valve components

Liner Material Tungsten Carbide

Ultra-high hardness and wear resistance
Effectively protects the seat from abrasive wear caused by sand and other solid particles entrained in production fluids
Resists corrosive attack from HS, CO, and chlorides
Significantly extends service life compared to unlined steel seats

Alternative Material Options

17-4 PH Stainless Steel body Higher strength and better corrosion resistance for demanding applications
Ceramic liner Alternative wear-resistant lining option
Inconel Available for extremely corrosive environments

Applications

The Tungsten Carbide Choke Seat is designed for use in adjustable choke valves across a wide range of oil and gas operations, delivering reliable flow control in the following scenarios:

Wellhead Flow Control - Regulating production flow rates from oil and gas wells
Choke & Kill Manifolds Flow control during drilling and well kill operations
Production Manifolds Managing production from multiple wells Christmas Tree Equipment Flow control on wellhead production trees
Sour Service Suitable for wells producing HS and CO
Abrasive Service Ideal for wells with sand production
Managed Pressure Drilling (MPD) Maintaining stable wellbore pressure

Why Choose Our Tungsten Carbide Choke Seat?

Precision Engineered for Adjustable Chokes

Our choke seats are precision-machined to exacting tolerances, ensuring a perfect mating surface with the choke stem (needle) for reliable sealing and precise flow control in adjustable choke valve applications.

Superior Materials for Extended Life

The combination of 410SS body and a premium tungsten carbide lining delivers exceptional resistance to both abrasive wear and corrosive attack the two primary failure mechanisms in choke valve service.

100% Interchangeable

Our choke seats are 100% interchangeable with major OEM adjustable choke designs, ensuring seamless compatibility with existing wellhead equipment.

Proven Needle-and-Seat Technology

Based on the proven needle-and-seat choke principle and optimized through design, our choke seats offer a comprehensive solution for challenging flow control applications.

Quality Assurance

1. ISO 9001: 2015 certified - Our factory operates under a certified quality management system

2. Material Certificate available upon request, full material traceability

3. Dimensional Inspection Precision measurement of all critical dimensions

4. Hardness Testing Verification of body and liner hardness

5. Surface Finish Inspection Quality control of all finished surfaces

Ordering Information

To help us provide you with an accurate quotation, please specify the following when making an inquiry:

Nominal Bore Size: (e.g., 2-1/16, 3-1/16, 4-1/16)
Pressure Rating: (e.g., 2,000 psi, 5,000 psi, 10,000 psi, 15,000 psi)
Body Material: 410SS (Standard) / 17-4 PH (Optional) / Inconel (Optional)
Liner Material: Tungsten Carbide (Standard) / Ceramic (Optional)
Surface Treatment: Standard / QPQ Treated (Optional)
Quantity: (Minimum order: 1 piece)
Destination Port: To calculate freight cost

Packaging & Shipping

Packaging: Standard export carton / wooden case (customized packaging available upon request)
Shipping: Worldwide delivery via sea, air, by express courier (DHL/FedEx/UPS), by air or by sea
Incoterms: EXW, FOB, CIF flexible terms available

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