| Customization: | Available |
|---|---|
| Material: | Cobalt |
| Performance: | Wear, Heat and Corrosion Resistance |
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Materials of our valve seats
Cobalt Based Alloy
---Excellent wear and corrosion resistance even at high temperatures up to 800
|
Brand |
C |
Mn |
Si |
Cr |
Ni |
Mo |
W |
Co |
Fe |
P |
S |
Density (g/cm3) |
Hardness (HRC) |
|
TOPS 3 |
2.0-2.7 |
1.0 |
1.0 |
29-33 |
3.0 |
|
11-14 |
Bal. |
3.0 |
≤0.03 |
≤0.03 |
8.55 |
51-55 |
|
TOPS 6 |
0.9-1.4 |
1.0 |
1.5 |
27-31 |
3.0 |
1.5 |
3.5-5.5 |
Bal. |
3.0 |
≤0.03 |
≤0.03 |
8.35 |
38-44 |
|
TOPS 12 |
1.1-1.7 |
1.0 |
1.0 |
28-32 |
3.0 |
|
7.0-9.5 |
Bal. |
3.0 |
≤0.03 |
≤0.03 |
8.40 |
44-49 |
|
TOPS 20 |
2.2-3.0 |
|
2.0 |
30-34 |
3.0 |
1.0 |
14-18 |
Bal. |
3.0 |
≤0.05 |
≤0.05 |
8.65 |
53-59 |
|
T400 |
0.04 |
|
2.5-2.7 |
8-10 |
|
27-29 |
|
Bal. |
|
|
|
|
55 |
|
T800 |
0.04 |
|
3.2-3.6 |
16-18 |
|
27-29 |
|
Bal. |
|
|
|
|
58 |
Dimensions of our valve seats
API Valve Seat Standard
|
No. |
Specifications |
Dimensions OD/ID×H (in) |
Weight (g/pc) |
|
1 |
VII-106 |
0.793/0.460×0.500 |
22.81 |
|
2 |
VII-125 |
0.918/0.550×0.500 |
29.55 |
|
3 |
VII-150 |
1.168/0.670×0.500 |
49.53 |
|
4 |
VII-175 |
1.388/0.825×0.500 |
68.13 |
|
5 |
VII-200 |
1.478/0.960×0.500 |
69.05 |
|
6 |
VII-225 |
1.720/1.060×0.500 |
100.34 |
|
7 |
VII-250 |
2.010/1.310×0.500 |
127.04 |
|
8 |
VII-375-1 |
3.072/1.700×0.750 |
536.94 |
|
9 |
VII-375-2 |
3.072/1.880×0.750 |
484.12 |
Note: The unit weight is only for reference. The actual weight might have some variations.
Can the above specifications not meet your requirements? No problem. Just tell us what you want. Our design and production capability can make it entirely to your needs.
Q1: What is the Warranty for our products?
A1: We own high precision grading machine to control geometry dimensions and apply ultra fine grain size substrate coated with high-performance coatings to guarantee the lifetime of our products, which can satisfy every working condition. If any quality problems on our side occurred during this period, we will take on the shipping cost and replacement.
Q2: Do you provide free samples?
A2: Yes, usually we provide free samples for testing under the condition of freight paid by the customer.
Q3: What is your minimum order requirement?
A3: We will indicate the MOQ for each item in the quotation sheet. We accept the sample and trial order. If the quantity of a single item can't reach the MOQ, the price should be the sample price.
Q4: What is the delivery time of your products?
A4: It depends on the inventory availability. If items needed are in stock, the delivery time would be within 8 workdays, but if not the delivery time would be around 20 workdays.
Q5: Can you manufacture Special-shaped products?
A5: Yes, we can. We can produce both standard and special products. We can make them according to your drawings and samples.
Q6: May I have my order working schedule?
A6: Yes, we will send the working schedule of your order each week. We will inspect and test all merchandise in case of damaging and missing parts before shipment. The detailed inspection pictures of the order will be sent to you for your confirmation before delivery.
Your feedback is our best honor, please do not hesitate to give us your valuable feedback and we can let you feel more confident about our company and products.
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