OEM ODM Petroleum Tungsten Carbide Valve Core
This is a tungsten carbide bush or sleeve for petroleum and petrochemical applications. It is pressed on an imported press and sintered in an over-pressure sintering furnace to achieve stable quality, good density, and high comprehensive…
Product Overview
This is a tungsten carbide bush or sleeve for petroleum and petrochemical applications. It is pressed on an imported press and sintered in an over-pressure sintering furnace to achieve stable quality, good density, and high comprehensive performance. The part is made to customer drawing under OEM and ODM terms, with no fixed catalogue sizes. It is used to reduce leakage in valves or to reduce wear between shaft and bearing seat.
Key Benefits
- Long service life due to exclusive raw material formula with wear-resistant elements
- Stable quality with good density and high comprehensive performance
- Lower processing cost because of small tolerance margin on boundary dimensions after pressing and sintering
- Fast delivery due to complete mould inventory and short production cycle
- Chemically stable against acid, alkali, alcohol, ether, hydrocarbons, oil, detergent, and sea water
Technical Data
Values below come from the product data we publish. Anything not listed is confirmed against your drawing at quotation.
| Material | Cemented tungsten carbide (WC-Co) |
|---|---|
| Shaping | Pressed and sintered from existing or new moulds |
| Finish | Ground to drawing |
| Dimensions | To customer drawing |
| Lead Time | Stock items 3-5 days after payment; customised items quoted per order |
| Grades Available | YG6 YG8 YG10 YG15 YL10.2 and equivalents, selected against the fluid and load |
Problems It Solves
- Steel or coated sleeves wear out quickly in abrasive or corrosive environments, leading to frequent pump teardowns
- Clearance opens up between shaft and sleeve as wear progresses, causing leakage and reduced efficiency
- Large dimensional margins after pressing increase grinding time and cost per part
- Chemical attack from acids, alkalis, or sea water shortens the life of non-carbide materials
Who It Is For
- Petroleum and petrochemical pump manufacturers specifying wear-resistant components
- Slurry and centrifugal pump OEMs whose steel sleeves fail prematurely
- Petrochemical plant maintenance teams replacing worn shaft sleeves
- Trading companies and distributors supplying spares for oilfield and chemical equipment
Application Scenarios
- Valve rod bonnet shaft sleeve in submersible oil pumps handling sand-laden crude
- Wear protection sleeve in slurry pump shafts exposed to abrasive solids
- Bearing bush in centrifugal pumps where shaft wear causes clearance growth
- Shaft sleeve in water pumps where sea water causes rapid steel corrosion
- Valve sleeve in petrochemical process valves exposed to aggressive chemicals
Technical Features
- Pressed on an imported press for consistent green density
- Sintered in an over-pressure sintering furnace to close residual porosity and stabilise density
- Exclusive raw material formula with wear-resistant elements to extend service life
- Regular geometry with small tolerance margin on boundary dimensions
- Complete mould inventory allows fast production even without stock
Materials and Grades
- WC-Co cemented carbide, cobalt content selected for the balance of hardness and toughness the duty needs
- Lower cobalt grades such as YG6 for maximum wear resistance in clean abrasive service
- Higher cobalt grades such as YG15 where the sleeve sees impact and pressure shock
Customisation Options
- Manufactured to customer drawings including non-standard and specially shaped sleeves
- Grade changed to suit the fluid, abrasive load and pressure cycle
- Matched sleeve and shaft pairs supplied together
- Samples produced for pre-testing before bulk release
How This Part Is Made
Drawing review and grade selection
Mould selection or new mould
Powder blending
Pressing on imported press
Over-pressure sintering
Grinding to drawing
Dimensional and physical property inspection
Packing and shipping
Quality Control
- Physical properties, shape and tolerance are checked before shipping
- Every order is tested before bulk production is released
- Inspection photographs of the finished order are sent for confirmation before delivery
Use Guide
- Send the drawing with the fluid, solids content, temperature and pressure cycle so the grade can be matched rather than guessed
- Order the sleeve and the mating shaft or seat together so the surfaces are lapped as a pair
- Support the carbide sleeve on a full seat face; point loading on an unsupported edge can cause chipping
- Do not shock a cold carbide part into hot service; allow the assembly to equalise temperature
- Keep one sample from the first article for comparison when measuring a repeat order
How It Compares With The Alternatives
| Alternative | Trade-off |
|---|---|
| Hardened steel sleeve | Steel is cheaper per piece and easier to machine, but erodes quickly in abrasive or corrosive fluid, leading to higher downtime and maintenance cost |
| Ceramic sleeve | Ceramic matches carbide on chemical resistance but is more brittle under impact; carbide tolerates pressure shock better in cycling applications |
| Coated or hardfaced sleeve | A coating wears through and then the base metal fails rapidly; solid carbide wears uniformly through the entire section |
OEM ODM Petroleum Tungsten Carbide Valve Core FAQ
Are you a trade company or a manufacturer?
A manufacturer. The company has produced tungsten carbide parts for over 15 years and takes on design and processing of carbide products with technical support.
Where is your factory located?
Zhuzhou City, Hunan Province, China, which is the country's tungsten carbide production base.
Can I get a sample before placing a bulk order?
Yes. Samples are sold for pre-testing. Send the drawing and the service conditions and a sample can be quoted.
Can you produce the products according to my own drawing?
Yes. OEM and ODM to customer drawings is standard for this part, including specially shaped sleeves and matched pairs.
How long does an order take?
Stock items are shipped 3-5 days after payment is received. Customised items are given a delivery time in the quotation.
How do I know the parts were checked before they shipped?
Physical properties, shape and tolerance are inspected before shipping, and detailed inspection photographs of the order are sent for confirmation before delivery.
Which grade should I choose?
It depends on the fluid and the load. Lower cobalt grades such as YG6 give the best wear resistance in clean abrasive service; higher cobalt grades such as YG15 tolerate impact and pressure shock better. Send the operating conditions and a grade will be recommended.
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Send the drawing or the dimensions plus what the part runs against. Samples are available for pre-testing before a bulk order.