| Customization: | Available |
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| Structure: | Single End |
| Pressure: | High Pressure Mechanical Seals |
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(1)Features
• For Stepped shafts
• Single seal
• Balanced
• Dependent of direction of rotation
• Torque transmission via conical spring
(2)Advantages
• High flexibility due to extended selection of materials
• Insensitive to low solids contents
• Short Installation length possible (G16)
• Economical balanced seal
• Seat cooling for hot water applications available (G115)
• No damage of the shaft by set screws
(3)Operating range (see note on page 1)
Shaft diameter: d1 = 10 ... 80 mm (0.4" ... 3.125")
Pressure: p1 = 25 bar (363 PSI)
Temperature: t = -50 °C ... +220 °C (-58 °F ... +430 °F)
Sliding velocity: vg = 15 m/s (50 ft/s)
Axial movement: ±1.0 mm
(4)Materials
Seal face: Carbon graphite antimony impregnated (A)
Seat G9: Silicon carbide (Q1), Special cast CrMo steel (S)
(5)Standards and approvals
• EN 12756
(6)Recommended applications
• Water and waste water technology
• Chemical industry
• Low solids content media (H17GN)
• Hot water
• Chemical standard pumps
• Water and sewage pumps
(7)Item Part no. to DIN 24250 Description
1.1 472/473 Seal face
1.2 412.1 O-Ring
1.3 474 Thrust ring
1.4 478 Righthand spring
1.4 479 Lefthand spring
2 475 Type G9 stationary seat
3 412.2 O-Rin
(8)Product variants
H12
Dimensions, items and descriptions as for H12N, but with seat G16.
Seal face: Carbon graphite antimony impregnated (A)
Seat G16: Silicon carbide (Q1), Special cast
CrMo steel (S), Aluminium oxide (V)
H17GN
Dimensions, items and descriptions as for H12N,
but with shrink-fitted seal face (Q12)
(Item no. 1.1).
Temperature: t = -20 °C ... +180 °C (-4 °F ... +356 °F)
Seal face: Silicon carbide (Q12)
Seat G9: Silicon carbide (Q1, Q2),
Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B)
H17G
Dimensions, items and descriptions as for H12N, but
with shrink-fitted seal face (Q12) and seat G16.
Temperature: t = -20 °C ... +180 °C (-4 °F ... +356 °F)
Seal face: Silicon carbide (Q12)
Seat G16: Silicon carbide (Q1)
Dimensions in mm
| d1 | d2 | d3 | d6 | d7 | d8 | d21 | d22 | db | L1n | L1 | L2 | L3 | L5 | L6 | L7 | L8 | L9 | L18 | L19 | L39 | L40 | a | b | e | h1 | h2 | k | b*) |
| 10 | 14.0 | 24.0 | 17.0 | 21.0 | 3.0 | - | - | 18.0 | 50.0 | 35.5 | 18.0 | 25.5 | 1.5 | 4.0 | 8.5 | 17.5 | 10.0 | - | - | - | - | - | 5.0 | - | - | - | - | 8.0 |
| 12 | 16.0 | 26.0 | 19.0 | 23.0 | 3.0 | - | - | 21.0 | 50.0 | 36.5 | 18.0 | 26.5 | 1.5 | 4.0 | 8.5 | 17.5 | 10.0 | - | - | - | - | - | 5.0 | - | - | - | - | 8.0 |
| 14 | 18.0 | 31.0 | 21.0 | 25.0 | 3.0 | - | - | 23.0 | 55.0 | 39.5 | 18.0 | 29.5 | 1.5 | 4.0 | 8.5 | 17.5 | 10.0 | - | - | - | - | - | 6.0 | - | - | - | - | 8.0 |
| 16 | 20.0 | 34.0 | 23.0 | 27.0 | 3.0 | - | - | 26.0 | 55.0 | 41.0 | 18.0 | 31.0 | 1.5 | 4.0 | 8.5 | 17.5 | 10.0 | - | - | - | - | - | 6.0 | - | - | - | - | 8.0 |
| 18 | 22.0 | 36.0 | 27.0 | 33.0 | 3.0 | - | - | 28.0 | 55.0 | 44.0 | 20.0 | 32.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 15.0 | 7.0 | - | - | - | 6.0 | - | - | - | - | 8.0 |
| 20 | 24.0 | 38.0 | 29.0 | 35.0 | 3.0 | - | - | 30.0 | 60.0 | 44.0 | 20.0 | 32.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 15.0 | 7.0 | - | - | - | 6.0 | - | - | - | - | 8.0 |
| 22 | 26.0 | 40.0 | 31.0 | 37.0 | 3.0 | - | - | 31.0 | 60.0 | 44.0 | 20.0 | 32.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 15.0 | 7.0 | - | - | - | 6.0 | - | - | - | - | 8.0 |
| 24 | 28.0 | 42.0 | 33.0 | 39.0 | 3.0 | - | - | 35.0 | 60.0 | 44.0 | 20.0 | 32.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 15.0 | 7.0 | - | - | - | 6.0 | - | - | - | - | 8.0 |
| 25 | 30.0 | 44.0 | 34.0 | 40.0 | 3.0 | - | - | 37.0 | 60.0 | 45.0 | 20.0 | 33.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 15.0 | 7.0 | - | - | - | 6.0 | - | - | - | - | 8.0 |
| 28 | 33.0 | 47.0 | 37.0 | 43.0 | 3.0 | 44.65 | 50.57 | 40.0 | 65.0 | 47.0 | 20.0 | 35.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 15.0 | 7.0 | 24.0 | 8.5 | 24.0 | 6.0 | 8.0 | 6.6 | 22.6 | 9.0 | 8.0 |
| 30 | 35.0 | 49.0 | 39.0 | 45.0 | 3.0 | 47.83 | 53.75 | 43.0 | 65.0 | 47.0 | 20.0 | 35.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 15.0 | 7.0 | 24.5 | 9.0 | 24.0 | 6.0 | 8.0 | 6.6 | 22.6 | 9.0 | 8.0 |
| 32 | 38.0 | 54.0 | 42.0 | 48.0 | 3.0 | 47.83 | 53.75 | 45.0 | 65.0 | 51.0 | 20.0 | 39.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 15.0 | 7.0 | 24.5 | 9.0 | 24.0 | 6.0 | 8.0 | 6.6 | 22.6 | 9.0 | 7.5 |
| 33 | 38.0 | 54.0 | 42.0 | 48.0 | 3.0 | 47.83 | 53.75 | 45.0 | 65.0 | 51.0 | 20.0 | 39.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 15.0 | 7.0 | 24.5 | 9.0 | 24.0 | 6.0 | 8.0 | 6.6 | 22.6 | 9.0 | 7.5 |
| 35 | 40.0 | 56.0 | 44.0 | 50.0 | 3.0 | 51.00 | 56.92 | 49.0 | 65.0 | 55.0 | 20.0 | 43.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 15.0 | 7.0 | 24.5 | 9.0 | 24.0 | 6.0 | 8.0 | 6.6 | 22.6 | 9.0 | 8.0 |
| 38 | 43.0 | 59.0 | 49.0 | 56.0 | 4.0 | 54.18 | 60.10 | 52.0 | 75.0 | 60.0 | 23.0 | 46.0 | 2.0 | 6.0 | 9.0 | 22.0 | 14.0 | 16.0 | 8.0 | 26.0 | 11.0 | 24.0 | 6.0 | 8.0 | 6.6 | 22.6 | 9.0 | 7.5 |
| 40 | 45.0 | 61.0 | 51.0 | 58.0 | 4.0 | 60.53 | 66.45 | 55.0 | 75.0 | 62.0 | 23.0 | 48.0 | 2.0 | 6.0 | 9.0 | 22.0 | 14.0 | 16.0 | 8.0 | 26.0 | 11.0 | 24.0 | 6.0 | 8.0 | 6.6 | 22.6 | 9.0 | 8.0 |
| 43 | 48.0 | 64.0 | 54.0 | 61.0 | 4.0 | 63.70 | 69.62 | 58.0 | 75.0 | 65.0 | 23.0 | 51.0 | 2.0 | 6.0 | 9.0 | 22.0 | 14.0 | 16.0 | 8.0 | 26.0 | 11.0 | 24.0 | 6.0 | 8.0 | 6.6 | 22.6 | 9.0 | 8.0 |
| 45 | 50.0 | 66.0 | 56.0 | 63.0 | 4.0 | 63.70 | 69.62 | 61.0 | 75.0 | 69.0 | 23.0 | 55.0 | 2.0 | 6.0 | 9.0 | 22.0 | 14.0 | 16.0 | 8.0 | 26.0 | 11.0 | 24.0 | 6.0 | 8.0 | 6.6 | 22.6 | 9.0 | (8.0) |
| 48 | 53.0 | 69.0 | 59.0 | 66.0 | 4.0 | 66.88 | 72.80 | 64.0 | 85.0 | 69.0 | 23.0 | 55.0 | 2.0 | 6.0 | 9.0 | 22.0 | 14.0 | 16.0 | 8.0 | 26.0 | 11.0 | 24.0 | 8.0 | 8.0 | 6.6 | 22.6 | 9.0 | 8.0 |
| 50 | 55.0 | 71.0 | 62.0 | 70.0 | 4.0 | 70.05 | 75.97 | 66.0 | 85.0 | 73.0 | 25.0 | 58.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 17.0 | 9.5 | 26.5 | 12.5 | 24.0 | 8.0 | 8.0 | 6.6 | 22.6 | 9.0 | 8.0 |
| 53 | 58.0 | 78.0 | 65.0 | 73.0 | 4.0 | 76.40 | 82.32 | 69.0 | 85.0 | 75.0 | 25.0 | 60.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 17.0 | 9.5 | 26.5 | 12.5 | 24.0 | 8.0 | 8.0 | 6.6 | 22.6 | 9.0 | 8.0 |
| 55 | 60.0 | 79.0 | 67.0 | 75.0 | 4.0 | 76.40 | 82.32 | 71.0 | 85.0 | 75.0 | 25.0 | 60.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 17.0 | 9.5 | 28.5 | 12.5 | 26.0 | 8.0 | 8.0 | 6.6 | 24.6 | 11.0 | 8.0 |
| 58 | 63.0 | 83.0 | 70.0 | 78.0 | 4.0 | 79.58 | 85.50 | 74.0 | 85.0 | 75.0 | 25.0 | 60.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 18.0 | 10.5 | 28.5 | 12.5 | 26.0 | 8.0 | 8.0 | 6.6 | 24.6 | 11.0 | 8.0 |
| 60 | 65.0 | 85.0 | 72.0 | 80.0 | 4.0 | 82.75 | 88.67 | 77.0 | 95.0 | 75.0 | 25.0 | 60.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 18.0 | 10.5 | 28.5 | 12.5 | 26.0 | 8.0 | 8.0 | 6.6 | 24.6 | 11.0 | 8.0 |
| 63 | 68.0 | 88.0 | 75.0 | 83.0 | 4.0 | 85.93 | 91.85 | 80.0 | 95.0 | 75.0 | 25.0 | 60.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 18.0 | 10.5 | 28.5 | 12.5 | 26.0 | 8.0 | 8.0 | 6.6 | 24.6 | 11.0 | 8.0 |
| 65 | 70.0 | 90.0 | 77.0 | 85.0 | 4.0 | 85.93 | 91.85 | 83.0 | 95.0 | 76.0 | 25.0 | 61.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 18.0 | 10.5 | 28.5 | 12.5 | 26.0 | 8.0 | 8.0 | 6.6 | 24.6 | 11.0 | 10.0 |
| 70 | 75.0 | 98.0 | 83.0 | 92.0 | 4.0 | 89.10 | 95.02 | 88.0 | 95.0 | 81.0 | 28.0 | 63.0 | 2.5 | 7.0 | 9.0 | 26.0 | 18.0 | 19.0 | 11.5 | 30.5 | 14.5 | 26.0 | 8.0 | 8.0 | 6.6 | 24.6 | 11.0 | 10.0 |
| 75 | 80.0 | 103.0 | 88.0 | 97.0 | 4.0 | 98.63 | 104.55 | 93.0 | 105.0 | 86.0 | 28.0 | 68.0 | 2.5 | 7.0 | 9.0 | 26.0 | 18.0 | 19.0 | 11.5 | 30.5 | 14.5 | 26.0 | 10.0 | 8.0 | 6.6 | 24.6 | 11.0 | 10.0 |
| 80 | 85.0 | 109.0 | 95.0 | 105.0 | 4.0 | 101.80 | 107.72 | 98.0 | 105.0 | 86.0 | 28.0 | 68.0 | 3.0 | 7.0 | 9.0 | 26.2 | 18.2 | 19.0 | 11.5 | 30.2 | 14.0 | 26.0 | 10.0 | 8.0 | 6.6 | 24.6 | 11.0 | 10.0 |
| * l1N acc. to EN 1275fb is exceeded | ||||||||||||||||||||||||||||
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).
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