- Overview
- Quick Information
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- Main Dimensions
- Quality Grade
- Suitable for
- Quality Control
- About Oston Carbide
Basic Info.
Product Description
We manufacture tungsten carbide valve seats for standard 1" Valves in port sizes from 1/8" to 3/8", standard 1 1/2" in port sizes from 1/8" to 1/2"; We also manufacture customized seats as per your specific drawings and material specifications.
These tungsten carbide valve seats are used for Conventional Gas Lift Valves, Wireline Retrievable (WLR) Injection Pressure Operated (IPO) Gas Lift Valves, various Oil Field Equipment, Oilfield Valves, oil pumps in petroleum industry's sand containing wells, viscous oil wells, sea oil wells and high pressure sulfur resistant oil wells, etc.
The feature of our valve seats: High strength, high wear resistance, high precision, high temperature resistant and high corrosion resistant.
| API code | V11-106 | V11-125 | V11-150 | V11-175 | V11-200 | V11-225 | V11-250 | V11-375 |
| SD+/-0.025 | 0.625'' (15.88mm) | 0.750'' (19.05mm) | 0.938'' (23.83mm) | 1.125'' (28.58mm) | 1.250'' (31.75mm) | 1.375'' (34.93mm) | 1.688'' (42.88mm) | 2.250'' (57.15mm) |
| h+0.50/+0.25 | 0.500'' (12.7mm) | 0.500'' (12.7mm) | 0.500'' (12.7mm) | 0.500'' (12.7mm) | 0.500'' (12.7mm) | 0.500'' (12.7mm) | 0.500'' (12.7mm) | 0.750'' (19.05mm) |
| D+0/-0.13 | 0.793'' (20.14mm) | 0.918'' (23.32mm) | 1.168'' (29.67mm) | 1.388'' (36.26mm) | 1.478'' (37.54mm) | 1.720'' (43.69mm) | 2.010'' (51.05mm) | 3.072'' (78.03mm) |
| d+/-1.27 | 0.460'' (11.68mm) | 0.550'' (13.97mm) | 0.670'' (17.02mm) | 0.825'' (20.96mm) | 0.960'' (24.38mm) | 1.060'' (26.92mm) | 1.310'' (33.27mm) | 1.700'' (43.18mm) |
These specs are common dimensions in our factory,if you can't find the one you need,please contact us.
| Diameter (mm) | Diameter (mm) | Diameter (mm) | Diameter (mm) |
2.0 | 2.38125 (3/32 '') | 2.5 | 3.0 |
3.175 (1/8 '') | 3.5 (9/64 '') | 4.0 | 4.5 |
4.7625 | 5.0 | 5.5 | 6.0 |
| 6.35 (1/4 '') | 6.5 | 7.0 | 7.144 (9/32 '') |
| 7.5 | 7.938 (5/16 '') | 8.0 | 8.5 |
| 9.0 | 9.525 (3/8 '') | 10.0 | 11.0 |
| 11.1125 (0.4375'') | 12.0 | 12.7 (0.5'') | 13.0 |
| 13.494 | 14.0 | 14.2875 (9/16 '') | 15.0 |
| 15.875 (5/8 '') | 16.0 | 17.0 | 17.4625 (11/16 '') |
| 18.0 | 19.0 | 19.05 (3/4 '') | 20.0 |
| 22.225 (7/8 '') | 25.0 | 25.4 ( 1'' ) | 28.575( 9/8 '') |
| 30.0 | 31.75 (1.25'') | 38.1 (1.5'') | 42.8625 ( 27/16 '') |
| 50.8 (2'') |
Tolerance of tungsten carbide balls.
| Grade | Sphericity | Basic Diameter Tolerance | Maximum Surface Roughness |
| G3 | 0.000003" | +/- .00003" | 0.5 |
| G5 | 0.000005" | +/- .00005" | 0.8 |
| G10 | 0.000010" | +/- .0001" | 1.0 |
| G25 | 0.000025" | +/- .0001" | 2.0 |
| G50 | 0.000050" | +/- .0002" | 3.0 |
| G100 | 0.0001" | +/- .0005" | 5.0 |
| G200 | 0.0002" | +/- .0010" | 8.0 |
We offer a wide range of tungsten carbide spheres for you to choose,the main quality grade is K10(YG6X),K20(YG6),K30(YG8).
| Grade | ISO grade | Grain size (um) | Binder | density (g/cm³) | Hardness (HRA) | T.R.S (N/mm2) |
YG6X(C3) | K10 | 1.2 | 6 | ≥15.00 | ≥91.0 | ≥1880 |
| YG6(C1) | K20 | 1.5 | 6 | ≥14.90 | ≥90.0 | ≥1580 |
| YG8(C2) | K30 | 1.5 | 8 | ≥14.80 | ≥89.5 | ≥2020 |
The application range of cemented carbide balls is extremely wide, such as: ball screws, inertial navigation systems, precision parts punched and stretched, precision bearings, instruments, meters, pens, sprayers, water pumps, mechanical accessories, sealing valves, brakes High-end industries such as pumps, punching holes, oil fields, hydrochloric acid laboratories, hardness measuring instruments, high-quality fishing gear, counterweights, finishing and so on!
1. Material Milling and Desiccation
Dust-Free Workshop: All staff must wear specified uniforms before entering the workshop.
2. Isostatic Suppressing for carbide rods
Machinery Automation:Automatic manipulators are installed for all of our TPA suppressing facilites,which is more accurate on weight controlling and reduces production cost.
3. HIP Sintering
Strict rules of operation: All operation need be conducted strictly as process rules.
4. Quality checking of trial production.
New testing piece: Testing piece must be produced before a new batch of material is used for mass production to ensure the stable
quality.
5. Grinding and Machining
We own all facilitess for the whole carbide machining system to ensure the delivery in time,including surface grinding lathe,external grinding lathe,centerless grinding lathe,wire cutting machine,EDM sparkling machine.
6. quality checking of finished products.
Double Quality Checking: Inspection for semi-finished and finished products are both essential,products with defects will never be shipped.
7. Packing and delivery
Safe package and delivery: Kraft paper for the first layer,bubble plastic for the second layer,gaps are filled with sponge,We focus on every package detail to ensure that clients receive our goods with good looks and good quality.
Q:Is OSTON CARBIDE producer ?
A:OSTON CARBIDE is a exporting subsidiary for our parent company,which is a manufacturer of tungsten carbide and diamond wheels since 1998,you will get both manufacturing prices and good services here.
Q:What kind of products and service could OSTON supply ?
A:OSTON has been specializing in carbide solutions for clints more than 20 countries,which includes design and manufacturing of various carbide parts.
Q: Is there any certification for products of OSTON ?
A: Yes,All products from OSTON have been endorsed with the ISO9001:2015 certification.
Q:Can a drawing be supplied to OSTON for further design ?
A: Yes,we encourage sending as more information as possible,drawing and sketch are welcome for specific quotation,even a sample could be sent to OSTON for further design.
Q:When can I get the offer after sending inquiry ?
A:Our sales operates between 9:00 am to 6:00 pm Monday to Friday,Offer is usually supplied within 24 hours after we got your inquiry,if you are urgent to get the price,please call us or send email so that we'll take it as priority.
Q:How long time I need spend on waiting for my goods ?
A:Usual delivery time is 15-18 days after 30% down payment is received,please confirm with us before placing the order if you need urgent turnaround delivery.