| Customization: | Available |
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| Surface Treatment: | Polishing, Sand Blast, Coating |
| Temperature: | High Temperature |
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1. High hardness
2. Good wear resistance
3. High strength and pressure resistance
4. Chemical stability
5. High temperature performance
Valve Pairs Sizes for Choosing
OEM/ODM welcomed.
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| API Code | VII-106 | VII-125 | VII-150 | VII-175 | VII-200 | VII-225 | VII-250 | VII-375 |
| SD+/-0.025 | 0.625''(15.88mm) | 0.75''(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''(12.70mm) | 0.500''(12.70mm) | 0.500''(12.70mm) | 0.500''(12.70mm) | 0.500''(12.70mm) | 0.500''(12.70mm) | 0.500''(12.70mm) | 0.750''(19.05mm) |
| D+0/-0.13 | 0.793''(20.14mm) | 0.918''(23.32mm) | 1.168''(29.67mm) | 1.388(35.26mm) | 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) |
Grades Chart
| Grade | Composition(%) | Density(g/cm3) | Hardness(HRA) | Bend Strength(N/mm2) | Specification | |
| WC(%) | CO(%) | |||||
| YG6 | 94% | 6% | 14.9 | ≥91 | ≥1600 | With high hardness, wear resistance, corrosion resistance, anti-bending, tungsten carbide is used to replace steel ball. |
| YG6X | 94% | 6% | 14.5 | ≥92 | ≥1400 | |
| YG8 | 92% | 8% | 14.8 | ≥90 | ≥1600 | |
| YG15 | 85% | 15% | 14.0 | ≥87 | ≥2100 | |
1. Mechanical transmission field
Ball screws: Carbide balls in ball screws convert rotary to linear motion, ensuring high-precision transmission and long life. Used in CNC machine tools etc., they improve machining accuracy and efficiency.
Bearing system: Carbide seats and balls make high-precision bearings. In aerospace and precision machine tools, the bearings can reduce friction, noise, and withstand loads for stable equipment operation.
2. Valve field
Ball valves: Carbide balls are used as spools of ball valves to control the flow of fluids in piping systems. Due to its good sealing and corrosion resistance, it can achieve precise flow control in pipelines of various fluid media (such as water, oil, gas, etc.). It is widely used in the pipeline system of chemical and petroleum industries.
Seat valve: Cemented carbide seat is used in seat valve with other spool structure. Its high hardness and chemical stability can ensure that the valve in a long period of time, the seat surface will not be corroded or worn to ensure that the valve sealing performance and service life.
3. Precision measuring instrument field
In optical microscopes, coordinate measuring instruments and other precision measuring instruments, carbide ball bearings can provide high-precision rotary support. Its low friction, high stability and high accuracy can ensure the measurement accuracy and reliability of the instrument, and can reduce the instrument maintenance frequency.
4. Oil and gas extraction field
Wellhead devices: In the valves and sealing devices of oil and gas wellheads, carbide seats and balls can resist the corrosion and high pressure of wellhead fluids to ensure the safe and stable operation of wellhead devices. In downhole tools, such as packers, cemented carbide parts can also improve the wear resistance and sealing performance of the tools and prolong their service life.
Company Profile
Zigong Kemit Cemented Carbide Co., Ltd.
Zigong Kemit Cemented Carbide Co., Ltd is located in Hi-Tech Industrial Zone of Zigong City, west of China. We have more than 15 years experience in researching and manufacturing of tungsten carbide products.
We are committed to providing customers with wear-resistant solutions under conditions of high wear, high corrosion, high temperature and high-pressure for industries like Oil&Gas,Mining Engineering Mechanical Machining Automobile Chemical and Aerospace etc. Our main products including Carbide rods and bars, Carbide strips and plates, Carbide bushings and sleeves, Carbide valve seats, nozzles, sealing rings, cutting tools and all kinds of customized tungsten carbide wear parts etc.
We attach great importance of innovative development, taking new process technologies and efficient research and development of new products. With strong supply capabilities, fast delivery, and stable quality, we can meet with the needs of our global customers.
We adhere to honesty and win-win cooperation, not only serve customers high quality products, excellent Pre and after sales service, but also we pay great attention to the long partnership with our customers and growing with our customers.
1.According to the fragile characteristics of Cemented Carbide, we choose safe and suitable packaging to ensure the safety of the product during transportation and not to damage the product.
2.According to customer's demand, we provide neutral packaging or customized packaging with customer's logo.
3.A variety of transportation methods are available: Sea Freight; Air Freight; Express ( UPS / DHL / FedEx / etc) .
FAQ
1. Are you manufacturer or trading company?
We are a professional manufacturer with 15 years experience in this field of carbide tools.
2. How can i place an order ?
Please provide the details of your requirements as clear as possible. So we can send you the quotation at the first time.
For designing or further discussion, it is better to contact us with WhatsApp / email / phone, in case of any delays.
3. When can I get the price?
We usually quote within 24 hours after receiving your inquiry. If you need a quote urgently, please let us know in your email so we can prioritize your inquiry.
4. What's your delivery way?
If the quantity is small, we recommend using express, such as DHL, UPS, TNT, FEDEX. If the quantity is large, send by sea.
5. Can you provide OEM service?
Yes, we work on OEM orders. Which means size, quantity, design, packing solution, etc will depend on your requests; and your logo will be customized on our products.
6. What is the producing process?
Production process including raw material cutting, machine processing, grinding, accessories cleaning, assemble, cleaning, stoving, oil coating, cover pressing, testing, package.
7. How to control the products quality?
All products will be tested before bulk production, and we will check the physical properties, shape and tolerances of the products before shipping to ensure that the products are qualified.
8. What's your delivery time ?
For the normal type which we have mold it takes 15-25 days after receiving the advance payment. For the non standard which we do not have mold it takes 25-35 days after receiving the advance payment.
9. What is the MOQ?
We have fixed MOQ for each of our products. But if you need less, it's okay, as we will change the price according to your quantity.
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