O-Ring Sealed Tungsten Carbide Valve Seats Drop-in Design for Gas Lift, Check & Choke Valves

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O-Ring Sealed Tungsten Carbide Valve Seats Drop-in Design for Gas Lift, Check & Choke Valves

Name: O-Ring Sealed Tungsten Carbide Valve Seats Drop-in Design for Gas Lift, Check & Choke Valves
Brand: Better Carbide Co., Limited
Price: 8.0 USD
Availability: InStock

Price 8.0 USD ($)/ Unit

Get a Price/Quote

MOQ : 10 Units

O-Ring Sealed Tungsten Carbide Valve Seats Drop-in Design for Gas Lift, Check & Choke Valves Specification

Tungsten( in %)
85-92

Usage
Gas Lift Valves, Check Valves, Choke Valves, and Mud Pumps

Carbon %
4-6

Size
Customized

Application
Oil, gas and chemical process industry

Color
shining

Coating Type
uncoated

Accessories
no accessory

Width
1.5 Inch (in)

Warranty
3 years

About O-Ring Sealed Tungsten Carbide Valve Seats Drop-in Design for Gas Lift, Check & Choke Valves

Product Overview

Our O-Ring Sealed Tungsten Carbide Valve Seats feature a precision drop-in design engineered for rapid field maintenance and absolute sealing integrity in severe downhole and surface flow control applications. These seats serve as a superior alternative to traditional brazed or press-fitted assemblies, combining the extreme durability of tungsten carbide with the reliability of elastomeric static sealing.

Designed for Gas Lift Valves, Check Valves, Choke Valves, and Mud Pumps, these drop-in valve seats enable field technicians to replace worn components within minutes simply extract the old seat, replace the O-rings, and install a new seat. No heating, brazing, or heavy pressing required.

Key Features

1) Drop-in / Slip-fit Design Field replaceable within minutes no brazing or pressing required

2) Dual O-ring static sealing Prevents high-pressure gas or corrosive fluids from bypassing the seat (washout)

3) Diamond-lapped sealing surface Mirror finish (Ra < 0.2) ensures bubble-tight metal-to-metal seal

4) Premium tungsten carbide construction Ultra-high hardness and wear resistance for extended service life

5) Precision tapered profile Guides high-velocity slurries smoothly, reducing turbulence and cavitation

6) Customizable groove dimensions OEM services available send us your drawings

Material Specifications

We manufacture these drop-in seats using cobalt-bonded tungsten carbide (WC-Co) as our standard material. For sour service applications requiring enhanced corrosion resistance, we also offer nickel-bonded tungsten carbide (WC-Ni) with materials selected in accordance with NACE MR0175 guidelines.

Material Grade	Binder Type	Recommended Application
YG6 / YG8	Cobalt (WC-Co)	General service, moderate sand conditions
YG9 / YG11	Cobalt (WC-Co)	High sand, high impact conditions
WC-6Ni / WC-8Ni	Nickel (WC-Ni)	Sour service, HS and CO environments

O-Ring Material

O-Ring Material	Temperature Range	Recommended Application
NBR (Nitrile)	-40C to +120C	General oil and gas service
HNBR	-40C to +150C	Sour service, balanced performance
Viton (FKM)	-20C to +200C	High temperature, chemical resistance
FFKM (Kalrez)	-20C to +250C	Severe sour service, extreme temperatures

Recommendation: For sour service (HS/CO) with high pressure, we recommend HNBR or FFKM O-rings paired with WC-Ni carbide seats. For RGD (Rapid Gas Decompression) applications, use AED-certified O-rings.

Technical Specifications

Parameter	Specification
Type	Drop-in / Slip-fit Valve Seat with External O-Ring Grooves
Material Grades	WC-Co (YG6/YG8/YG9/YG11) Standard / WC-Ni Optional
Hardness	87.5 92.5 HRA (depending on grade)
Static Sealing	Dual or Single O-Ring Groove Configuration
Dynamic Sealing	Tapered Conical Surface / Ball Seat Profile
Surface Finish	Diamond-lapped, mirror finish (Ra < 0.2)
Applications	Gas Lift Valves, Check Valves, Choke Assemblies, Mud Pumps
Pressure Rating	Up to 15,000 psi WP

Applications

Our O-ring sealed tungsten carbide valve seats are widely used in the following oil and gas applications:

Gas Lift Valves - Seat sealing for injection pressure operated (IPO) gas lift valves

Check Valves - Sealing surface for downhole check valve assemblies

Choke Valves - Erosion-resistant seating for adjustable and positive chokes

Mud Pumps - Wear-resistant valve seat for drilling mud pump applications

Wellhead Equipment - Sealing components for Christmas trees and wellhead assemblies

Sour Service - Suitable for wells producing HS and CO (with WC-Ni material)

Why Choose Our Drop-In Valve Seats?

Rapid Field Maintenance

Our drop-in design eliminates the need for complex heating, brazing, or heavy hydraulic pressing. Field technicians can replace a worn seat within minutes significantly reducing downtime and maintenance costs.

Superior Sealing Reliability

The dual O-ring groove configuration creates a foolproof static barrier against the valve housing, preventing bypass leakage (washout) even under fluctuating pressure and temperature cycles.

Premium Materials for Extended Life

Manufactured from high-grade tungsten carbide with hardness up to 92.5 HRA, our valve seats deliver exceptional resistance to abrasive wear, erosion, and corrosion the primary failure mechanisms in oilfield valve service.

Custom OEM Engineering

We supply blank inserts or fully finished seats tailored to your specific groove dimensions and taper angles. Send us your drawings, and our engineering team will deliver perfectly 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 - Our factory operates under a certified quality management system

2. Material Certificate - certificates available, full material traceability

3. Dimensional & Groove Verification - Ensures O-ring stretch and compression ratios meet sealing standards

4. Dye Penetrant Inspection (DPI) - Applied to tapered sealing surface to detect micro-cracks or porosity

5. Surface Finish Inspection - Optical surface profiling to guarantee mirror finish (Ra < 0.2)

Ordering Information

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

Valve Type: Gas Lift Valve / Check Valve / Choke Valve / Mud Pump

Nominal Size: (e.g., 1", 1.5", 2")

Material Grade: WC-Co (Standard) / WC-Ni (Optional recommended for sour service)

Ring Material: HNBR (Standard) / Viton / FFKM (Optional)

Groove Configuration: Single O-Ring / Dual O-Ring

Dimensions: Please provide drawings or specify OD, ID, Groove Size, Taper Angle

Quantity: (Minimum order: 10 pieces)

Destination Port: To calculate freight cost

Tip: Need help selecting the right material grade or O-ring type for your specific well conditions? Contact our team we're happy to recommend based on your application 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

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