| 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
• Torque transmission depending on application with set screw or as shrink fit
• Metallic coating (FMP 84) basically for applications without high oxidation
• Ceramic coating (EMP 98/FMP 130) basically for applications with high oxidation
• Design one- or two-piece
(2)Operating range
FMP 84 (metallic coating)
General description: chromium carbide
Coating process: flame spray technique (no influence on
material structure)
Shrink acceptability: very good
Shaft diameter: d = 45 ... 340 mm (1.77" … 13.39")
Operating temperature: t = max. 1,000 °C (1,832 °F)
Peripheral velocity: vu = max. 240 m/s (787 ft/s)
Hardness: > 65 HRC
EMP 98 / FMP 130 (ceramic coating)
General description: chromium oxide (ceramic)
Coating process: flame spray technique (no influence on
material structure)
Shrink acceptability: with restrictions
Shaft diameter: d = 45 ... 340 mm (1.77" … 13.39")
Operating temperature: t = max. 600 °C (1,112 °F)
Peripheral velocity: vu = max. 150 m/s (492 ft/s)
Hardness: > 58 HRC
(3)Advantages
• Easy installation by split design (2-piece version)
• High reliability
• Maintainability
(4)Materials
1.4021-FMP, 1.4086, 1.4462-FMP, 1.4571-FMP, others
(5)Item Description
1 Shaft sleeve
2 O-Ring
3 Set screw
(6)Standards and approvals
• DIN 42955
(7)Product variants
Espey WDB212/4 with fit bore shaft sleeve/diameter
shaft H6/h6 for low loaded seals e.g. in slow running
fans, agitators or shaft sleeve Espey WDB215/4 with fit
bore shaft sleeve/diameter shaft M5/h6 for high loaded
seals e.g. in turbo compressors, turbines
Espey WDB216/4 with fit bore shaft sleeve/diameter
shaft according to operating conditions and customer
specifications e.g. for high pressure turbo compressors
and turbines.
Dimensions in mm
| dh6 | d1* | d2 | d3 | d4 | d5 | d6 | a | b | c | e | f | g |
| 45 | 35.0 | 37.0 | 42.0 | 25.5 | 38.5 | 6.0 | 5.0 | 3.0 | 8.0 | 1.5 | 20.0 | 15.0 |
| 50 | 40.0 | 42.0 | 47.0 | 30.5 | 43.5 | 6.0 | 5.0 | 3.0 | 8.0 | 1.5 | 20.0 | 15.0 |
| 60 | 50.0 | 52.0 | 57.0 | 40.5 | 53.5 | 6.0 | 5.0 | 3.0 | 8.0 | 1.5 | 20.0 | 15.0 |
| 70 | 55.0 | 60.0 | 67.0 | 45.5 | 60.4 | 6.0 | 5.0 | 4.0 | 8.0 | 2.4 | 20.0 | 15.0 |
| 80 | 65.0 | 70.0 | 77.0 | 55.5 | 70.4 | 6.0 | 5.0 | 4.0 | 8.0 | 2.4 | 20.0 | 15.0 |
| 90 | 75.0 | 80.0 | 87.0 | 65.5 | 80.4 | 6.0 | 5.0 | 4.0 | 8.0 | 2.4 | 20.0 | 15.0 |
| 100 | 85.0 | 89.0 | 97.0 | 75.5 | 91.3 | 6.0 | 7.0 | 4.5 | 8.5 | 2.8 | 20.0 | 17.0 |
| 110 | 90.0 | 99.0 | 107.0 | 75.5 | 96.3 | 7.0 | 7.0 | 4.5 | 8.5 | 2.8 | 20.0 | 17.0 |
| 120 | 100.0 | 109.0 | 117.0 | 85.5 | 106.3 | 7.0 | 7.0 | 4.5 | 8.5 | 2.8 | 20.0 | 17.0 |
| 130 | 110.0 | 119.0 | 127.0 | 95.5 | 116.3 | 7.0 | 7.0 | 4.5 | 8.5 | 2.8 | 20.0 | 17.0 |
| 140 | 120.0 | 129.0 | 137.0 | 105.5 | 126.3 | 7.0 | 7.0 | 4.5 | 8.5 | 2.8 | 20.0 | 17.0 |
| 150 | 130.0 | 138.0 | 146.0 | 115.5 | 136.3 | 7.0 | 7.0 | 4.5 | 8.5 | 2.8 | 20.0 | 17.0 |
| 160 | 140.0 | 148.0 | 156.0 | 125.5 | 146.3 | 9.0 | 7.0 | 4.5 | 9.5 | 2.8 | 20.0 | 19.0 |
| 170 | 150.0 | 158.0 | 166.0 | 135.5 | 156.3 | 9.0 | 7.0 | 4.5 | 9.5 | 2.8 | 20.0 | 19.0 |
| 180 | 160.0 | 168.0 | 176.0 | 145.5 | 166.3 | 9.0 | 7.0 | 4.5 | 9.5 | 2.8 | 20.0 | 19.0 |
| 190 | 170.0 | 178.0 | 186.0 | 155.5 | 176.3 | 9.0 | 7.0 | 4.5 | 9.5 | 2.8 | 20.0 | 19.0 |
| 200 | 180.0 | 188.0 | 196.0 | 165.5 | 186.3 | 9.0 | 7.0 | 4.5 | 9.5 | 2.8 | 20.0 | 19.0 |
| 220 | 195.0 | 206.0 | 215.0 | 175.5 | 202.2 | 11.0 | 8.0 | 5.0 | 11.0 | 3.2 | 25.0 | 22.0 |
| 240 | 215.0 | 226.0 | 235.0 | 195.5 | 222.2 | 11.0 | 8.0 | 5.0 | 11.0 | 3.2 | 25.0 | 22.0 |
| 260 | 235.0 | 246.0 | 255.0 | 215.5 | 242.2 | 11.0 | 8.0 | 5.0 | 11.0 | 3.2 | 25.0 | 22.0 |
| 280 | 255.0 | 266.0 | 275.0 | 235.5 | 262.2 | 11.0 | 8.0 | 5.0 | 11.0 | 3.2 | 25.0 | 22.0 |
| 300 | 275.0 | 286.0 | 295.0 | 255.5 | 282.2 | 11.0 | 8.0 | 5.0 | 11.0 | 3.2 | 30.0 | 22.0 |
| 320 | 295.0 | 306.0 | 315.0 | 275.5 | 302.2 | 11.0 | 8.0 | 5.0 | 11.0 | 3.2 | 30.0 | 22.0 |
| 340 | 315.0 | 326.0 | 335.0 | 295.5 | 322.2 | 11.0 | 8.0 | 5.0 | 11.0 | 3.2 | 30.0 | 22.0 |
| Special sizes on request. * Consider selection of fits |
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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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