| Structure: | Single End |
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| Pressure: | High Pressure Mechanical Seals |
| Speed: | Ultra-High-Speed Mechanical Seal |
| Samples: |
Customer′s requirement
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| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Suppliers with verified business licenses
Audited Supplier (1)Features
• Non-contact type barrier seal
• Gas-lubricated
• Bi-directional
• Ready-to-fit cartridge unit
• Equipped with Espey carbon rings type WKA400
(2)Advantages
The service-proven bearing oil seal with moderate levels of
buffer gas consumption. Non contact type carbon rings are
segmented rings hold together by a garter spring at the
outer diameter. A defined minimum radial gap provides a
contact-free operation. The gas consumption can be
considered as moderate. The seal is sealing the oil
properly and has proven to be very robust and reliable
even at extreme conditions.
(3)Operating range (see note on page 1)
Shaft diameter: Ds1 = 29.5 ... 379.5 mm (1.16" ... 14.94")
Barrier gas supply pressure: min. 3 bara (43 PSI)
Operating pressure: 0.05 ... 11 bara (0.7 ...159 PSI)
Sliding velocity: 0 ... 100 m/s (328 ft/s)*
Temperature: -20 °C ... +100 °C (-4 °F ... 212 °F)*
Barrier gas: Air or nitrogen
Dew point of barrier gas at operating pressure:
no limitations
Run-out of shaft: max. 20 μm*
Vibrations peak/peak (in the area of compressor bearing):
Smax = 3.5 x 25.4 12.000/nmax
Smax = 275 μm (short term)
* Can be exceeded with adjusted design
(4)Materials
Seal face: Carbon graphite impregnated
Secondary seals: FKM (V)
Metal parts: 1.4006 and other stainless steels.
(5)Standards and approvals
• NACE
(6)Item Description
1 Shaft sleeve
2 Segmented carbon ring
3 Garter spring
4 Housing of the standardized sub-cartridge
5 Housing (adapted in size to the installation space)
D Separating gas
(7)Recommended applications
• Oil and gas industry
• Refining technology
• Petrochemical industry
• Nitrogen
• Air
• Centrifugal compressors
• Turbo expanders
• Screw compressors
• Blowe
(8)Dimensions in mm
Gas flow rate towards seal (required to ensure safe oil separation in every condition).
Valid for flow controlled separating gas supply
Dimensions in mm
| DN | ds1 max. | d2 | Lb |
| 50 | 29.5 | 98.0 | 27.0 |
| 55 | 34.5 | 103.0 | 27.0 |
| 60 | 39.5 | 108.0 | 27.0 |
| 65 | 44.5 | 113.0 | 27.0 |
| 70 | 49.5 | 118.0 | 27.0 |
| 75 | 54.5 | 123.0 | 27.0 |
| 80 | 59.5 | 128.0 | 27.0 |
| 85 | 64.5 | 133.0 | 27.0 |
| 90 | 69.5 | 138.0 | 27.0 |
| 95 | 74.5 | 143.0 | 27.0 |
| 100 | 79.5 | 148.0 | 27.0 |
| 105 | 84.5 | 153.0 | 27.0 |
| 110 | 89.5 | 158.0 | 27.0 |
| 115 | 94.5 | 163.0 | 27.0 |
| 120 | 99.5 | 168.0 | 27.0 |
| 130 | 109.5 | 178.0 | 27.0 |
| 135 | 114.5 | 183.0 | 27.0 |
| 140 | 119.5 | 188.0 | 27.0 |
| 150 | 129.5 | 198.0 | 27.0 |
| 160 | 139.5 | 208.0 | 27.0 |
| 170 | 149.5 | 222.0 | 28.0 |
| 180 | 159.5 | 232.0 | 28.0 |
| 190 | 169.5 | 242.0 | 32.5 |
| 200 | 179.5 | 252.0 | 32.5 |
| 210 | 189.5 | 262.0 | 32.5 |
| 215 | 194.5 | 272.0 | 32.5 |
| 220 | 199.5 | 272.0 | 32.5 |
| 230 | 209.5 | 282.0 | 32.5 |
| 235 | 214.5 | 287.0 | 32.5 |
| 240 | 219.5 | 292.0 | 33.5 |
| 250 | 229.5 | 302.0 | 33.5 |
| 260 | 239.5 | 312.0 | 33.5 |
| 270 | 249.5 | 322.0 | 33.5 |
| 280 | 259.5 | 343.0 | 34.5 |
| 290 | 269.5 | 353.0 | 34.5 |
| 300 | 279.5 | 363.0 | 34.5 |
| 310 | 289.5 | 373.0 | 34.5 |
| 320 | 299.5 | 379.0 | 34.5 |
| 330 | 309.5 | 393.0 | 34.5 |
| 340 | 319.5 | 400.0 | 34.5 |
| 380 | 359.5 | 443.0 | 34.5 |
| 390 | 369.5 | 453.0 | 34.5 |
| 400 | 379.5 | 463.0 | 34.5 |
We have large stock, so our delivery is very fast.
For example,if products are standarded, the delivery time is one week.
Our company and factory addrss: Ningbo City, Zhejiang Province,China.
Our city has a large port and an airport, so its transportation is very convenient.
Question1: What are the prices of your products?
Answer: For each model, the unit price is listed on the website, but what is displayed on the website is only the average market price. For specific models, you can contact us for further consultation and negotiation.
Question 2: Are you a factory or a trade company?
Answer: We are a factory with top sales for the trade service.
Question 3: What is the minimum order quantity for each order?
Answer: For products of regular models, the minimum order quantity is at least five. We welcome you to test the quality of our products and services through placing trial orders. Looking forward to the long-term cooperation with you.
Question4: What is your company's service tenet?
Answer: Quality first, service upmost. We promises that if there is any problem with the quality of the product, or if the product is damaged during the transportation, our company will be responsible for compensation, regardless of the ordder turnover value.
Question5: Can I try to get a SAMPLE before the order?
Answer: Sure. Our company will provide you with samples for free, but you will have to pay for the international delivery (freight collect payment).
Suppliers with verified business licenses
Audited Supplier 
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