Audited Supplier
(1)Featres
• For plain shafts
• Single seal
• Unbalanced
• Rotating conical spring
• Dependent on direction of rotation
(2)Advantages
• Universal application opportunities
• Insensitive to low solids content
• No damage of the shaft by set screws
• Large choice of materials
• Short installation lengths possible (G16)
• Variants with shrink-fitted seal face available
(3)Operating range (see note on page 1)
Shaft diameter: d1 = 6 ... 80 mm (0.24" ... 3.15")
Pressure: p1 = 10 bar (145 PSI)
Temperature: t = -20 °C ... +140 °C (-4 °F ... +355 °F)
Sliding velocity: vg = 15 m/s (50 ft/s)
Axial movement: ±1.0 mm
(4)Materials
Seal face: CrMo special cast steel (S)
Seat G9: Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B)
(5)Standards and approvals
• EN 12756
(6)Recommended applications
• Process industry
• Water and waste water technology
• Chemical industry
• Food and beverage industry
• Low solids content media
• Water and sewage water pumps
• Submersible pumps
• Chemical standard pumps
• Eccentric screw pumps
• Cooling water pumps
• Basic sterile applications
(7)liem Part no.to DIN 24250 Description
1.1 472 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 Seat (G9)
3 412.2 O-Ring
(8)Product variants
M3
Items and description as M3N.
Seal face: Special cast CrMo steel (S)
Seat G13: Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B)
M32
Items and descriptions as for type M3N, but with carbon
graphite seal face shrink-fitted into the seal face carrier
(Item no. 1.1)
Seal face: Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B)
Seat G4: Special cast CrMo steel (S),
Silicon carbide (Q1, Q2)
Seat G6 (M32N4): Special cast CrMo steel (S),
Silicon carbide (Q1, Q2)
Seat G9 (M32N): Silicon carbide (Q1, Q2)
Seat G6 also available in A, B = G30 (longer installation
length than G6)
M37G
Items and descriptions as for type M3N, but with shrink
fitted silicon carbide seal face to the seal face carrier
(Item no. 1.1).
Shaft diameter: d1 = 16 ... 80 mm (0.63" ... 3.15")
Temperature: t = -20 °C ... +180 °C ( -4 °F ... +355 °F)
Sliding velocity: vg = 10 m/s (33 ft/s)
Seal face: Silicon carbide (Q12, Q22),
Tungsten carbide (U22)
Seat G4: Silicon carbide (Q1, Q2)
Seat G13: Carbon graphite antimony impregnated (A),
Carbon graphite resin impregnated (B)
Seat G6 (M37GN4): Silicon carbide (Q1, Q2)
Seat G9 (M37GN): Carbon graphite antimony impregnated
(A), Carbon graphite resin impregnated (B),
Silicon carbide (Q1, Q2)
Seat G6 also available in A, B = G30 (longer installation
length than G6)
| d1 | d3 | d6 | d7 | d8 | d111) | d121) | d13 | db | L1N | L33) | L5 | L6 | L7 | L8 | L9 | L10 | L11 | L12 | L13 | L14 | L15 | L16 | L18 | L19 | L213) | L22 | L23 | L28 | b2) | R |
| 6 | 14.0 | _ | _ | _ | 11.5 | 16.0 | 16.0 | 8.0 | _ | _ | _ | _ | _ | _ | _ | _ | 9.0 | 6.5 | 7.1 | 5.6 | 1.2 | 3.8 | _ | _ | 10.5 | 11.9 | _ | _ | _ | 1.2 |
| 8 | 18.0 | _ | _ | _ | 15.5 | 19.2 | 18.0 | 11.0 | _ | _ | _ | _ | _ | _ | _ | _ | 9.0 | 8.0 | 7.1 | 7.0 | 1.2 | 3.8 | _ | _ | 15.5 | 16.9 | _ | _ | _ | 1.2 |
| 10* | 19.0 | 17.0 | 21.0 | 3.0 | 15.5 | 19.2 | 20.0 | 13.0 | 40.0 | 15.5 | 1.5 | 4.0 | 8.5 | 17.5 | 10.0 | 7.5 | 9.0 | 7.5 | 7.1 | 6.6 | 1.2 | 3.8 | _ | _ | 15.5 | 16.9 | _ | 6.6 | (8) | 1.2 |
| 12* | 21.0 | 19.0 | 23.0 | 3.0 | 17.5 | 21.6 | 22.0 | 16.0 | 40.0 | 16.0 | 1.5 | 4.0 | 8.5 | 17.5 | 10.0 | 7.5 | 10.0 | 6.5 | 7.6 | 5.6 | 1.2 | 3.8 | _ | _ | 15.5 | 17.4 | _ | 6.6 | (8) | 1.2 |
| 14* | 23.0 | 21.0 | 25.0 | 3.0 | 20.5 | 24.6 | 24.0 | 18.0 | 40.0 | 16.5 | 1.5 | 4.0 | 8.5 | 17.5 | 10.0 | 7.5 | 10.0 | 6.5 | 7.6 | 5.6 | 1.2 | 3.8 | _ | _ | 15.5 | 17.4 | 16.5 | 6.6 | (8) | 1.2 |
| 15 | 24.0 | _ | _ | _ | 20.5 | 24.6 | 25.0 | 19.0 | _ | _ | _ | _ | _ | _ | _ | _ | 11.0 | 7.5 | 8.6 | 6.6 | 1.2 | 3.8 | _ | _ | 15.5 | 17.4 | _ | _ | _ | 1.2 |
| 16* | 26.0 | 23.0 | 27.0 | 3.0 | 22.0 | 28.0 | 26.0 | 21.0 | 40.0 | 18.0 | 1.5 | 4.0 | 8.5 | 17.5 | 10.0 | 7.5 | 11.5 | 8.5 | 9.0 | 7.5 | 1.5 | 5.0 | _ | _ | 17.5 | 19.5 | 16.5 | 6.6 | (8) | 1.5 |
| 18* | 29.0 | 27.0 | 33.0 | 3.0 | 24.0 | 30.0 | 31.0 | 23.0 | 45.0 | 19.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 8.5 | 12.5 | 9.0 | 10.0 | 8.0 | 1.5 | 5.0 | 15.0 | 7.0 | 18.5 | 20.5 | 18.0 | 7.5 | (8) | 1.5 |
| 20* | 31.0 | 29.0 | 35.0 | 3.0 | 29.5 | 35.0 | 34.0 | 26.0 | 45.0 | 22.0 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 8.5 | 12.5 | 8.5 | 9.5 | 7.5 | 1.5 | 5.0 | 15.0 | 7.0 | 20.0 | 22.0 | 19.0 | 7.5 | (8) | 1.5 |
| 22* | 33.0 | 31.0 | 37.0 | 3.0 | 29.5 | 35.0 | 36.0 | 28.0 | 45.0 | 21.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 8.5 | 12.5 | 8.5 | 9.5 | 7.5 | 1.5 | 5.0 | 15.0 | 7.0 | 21.5 | 23.5 | 20.5 | 7.5 | (8) | 1.5 |
| 24* | 35.0 | 33.0 | 39.0 | 3.0 | 32.0 | 38.0 | 38.0 | 30.0 | 50.0 | 23.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 8.5 | 12.5 | 8.5 | 9.5 | 7.5 | 1.5 | 5.0 | 15.0 | 7.0 | 23.0 | 25.0 | 22.0 | 7.5 | (8) | 1.5 |
| 25* | 36.0 | 34.0 | 40.0 | 3.0 | 32.0 | 38.0 | 39.0 | 31.0 | 50.0 | 26.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 8.5 | 12.5 | 8.5 | 9.5 | 7.5 | 1.5 | 5.0 | 15.0 | 7.0 | 24.5 | 26.5 | 23.5 | 7.5 | (8) | 1.5 |
| 26 | 37.0 | _ | _ | _ | 34.0 | 40.0 | 40.0 | 32.0 | _ | _ | _ | _ | 9.0 | _ | _ | _ | 13.0 | 9.0 | 10.0 | 8.0 | 1.5 | 5.0 | _ | _ | 24.5 | 26.5 | 23.5 | _ | _ | 1.5 |
| 28* | 40.0 | 37.0 | 43.0 | 3.0 | 36.0 | 42.0 | 42.0 | 35.0 | 50.0 | 26.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 8.5 | 14.0 | 10.0 | 11.0 | 9.0 | 1.5 | 5.0 | 15.0 | 7.0 | 24.5 | 26.5 | 24.5 | 7.5 | (8) | 1.5 |
| 30* | 43.0 | 39.0 | 45.0 | 3.0 | 39.2 | 45.0 | 44.0 | 37.0 | 50.0 | 26.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 8.5 | 14.0 | 11.5 | 11.0 | 10.5 | 1.5 | 5.0 | 15.0 | 7.0 | 24.5 | 25.0 | 24.5 | 7.5 | (8) | 1.5 |
| 32* | 46.0 | 42.0 | 48.0 | 3.0 | 42.2 | 48.0 | 46.0 | 39.0 | 55.0 | 28.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 8.5 | 14.0 | 11.5 | 11.0 | 10.5 | 1.5 | 5.0 | 15.0 | 7.0 | 28.0 | 28.5 | 28.0 | 7.5 | (8) | 1.5 |
| 33* | 47.0 | 42.0 | 48.0 | 3.0 | _ | _ | 47.0 | 40.0 | 55.0 | 28.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 8.5 | _ | 12.0 | _ | _ | _ | _ | 15.0 | 7.0 | _ | _ | _ | 7.5 | (8) | 1.5 |
| 35* | 49.0 | 44.0 | 50.0 | 3.0 | 46.2 | 52.0 | 49.0 | 43.0 | 55.0 | 28.5 | 2.0 | 5.0 | 9.0 | 19.5 | 11.5 | 8.5 | 14.5 | 12.0 | 11.5 | 11.0 | 1.5 | 5.0 | 15.0 | 7.0 | 28.0 | 28.5 | 28.0 | 7.5 | (8) | 1.5 |
| 38* | 53.0 | 49.0 | 56.0 | 4.0 | 49.2 | 55.0 | 54.0 | 45.0 | 55.0 | 33.5 | 2.0 | 6.0 | 9.0 | 22.0 | 14.0 | 10.0 | 14.5 | 11.3 | 11.5 | 10.3 | 1.5 | 5.0 | 16.0 | 8.0 | 31.0 | 32.2 | 31.0 | 9.0 | 7.5 | 1.5 |
| 40* | 56.0 | 51.0 | 58.0 | 4.0 | 52.2 | 58.0 | 56.0 | 49.0 | 55.0 | 36.0 | 2.0 | 6.0 | 9.0 | 22.0 | 14.0 | 10.0 | 14.5 | 11.8 | 11.5 | 10.8 | 1.5 | 5.0 | 16.0 | 8.0 | 34.0 | 34.7 | 34.0 | 9.0 | (8) | 1.5 |
| 42 | 59.0 | _ | _ | _ | 53.3 | 62.0 | 58.0 | 52.0 | _ | _ | _ | _ | 9.0 | _ | _ | _ | 17.0 | 13.2 | 14.3 | 12.0 | 2.0 | 6.0 | _ | _ | 35.0 | 37.3 | 35.0 | _ | _ | 2.5 |
| 43* | 59.0 | 54.0 | 61.0 | 4.0 | _ | _ | 59.0 | 52.0 | 60.0 | 38.5 | 2.0 | 6.0 | 9.0 | 22.0 | 14.0 | 10.0 | _ | 13.2 | _ | _ | 2.0 | _ | 16.0 | 8.0 | _ | _ | _ | 9.0 | 7.5 | 2.5 |
| 45* | 61.0 | 56.0 | 63.0 | 4.0 | 55.3 | 64.0 | 61.0 | 55.0 | 60.0 | 39.5 | 2.0 | 6.0 | 9.0 | 22.0 | 14.0 | 10.0 | 17.0 | 12.8 | 14.3 | 11.6 | 2.0 | 6.0 | 16.0 | 8.0 | 36.5 | 39.2 | 36.5 | 9.0 | (8) | 2.5 |
| 48* | 64.0 | 59.0 | 66.0 | 4.0 | 59.7 | 68.4 | 64.0 | 58.0 | 60.0 | 46.0 | 2.0 | 6.0 | 9.0 | 22.0 | 14.0 | 10.0 | 17.0 | 12.8 | 14.3 | 11.6 | 2.0 | 6.0 | 16.0 | 8.0 | 42.0 | 44.7 | 42.0 | 9.0 | (8) | 2.5 |
| 50* | 66.0 | 62.0 | 70.0 | 4.0 | 60.8 | 69.3 | 66.0 | 61.0 | 60.0 | 45.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 10.5 | 17.0 | 12.8 | 14.3 | 11.6 | 2.0 | 6.0 | 17.0 | 9.5 | 43.0 | 45.7 | 43.0 | 9.5 | (8) | 2.5 |
| 53* | 69.0 | 65.0 | 73.0 | 4.0 | _ | _ | 69.0 | 64.0 | 70.0 | 47.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 12.0 | _ | 13.5 | _ | _ | _ | _ | 17.0 | 9.5 | _ | _ | _ | 11.0 | 8.0 | 2.5 |
| 55* | 71.0 | 67.0 | 75.0 | 4.0 | 66.5 | 75.4 | 71.0 | 66.0 | 70.0 | 49.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 12.0 | 18.0 | 14.5 | 15.3 | 13.3 | 2.0 | 6.0 | 17.0 | 9.5 | 47.0 | 49.0 | 47.0 | 11.0 | (8) | 2.5 |
| 58* | 76.0 | 70.0 | 78.0 | 4.0 | 69.5 | 78.4 | 78.0 | 69.0 | 70.0 | 55.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 12.0 | 18.0 | 14.5 | 15.3 | 13.3 | 2.0 | 6.0 | 18.0 | 10.5 | 50.0 | 52.0 | 50.0 | 11.0 | (8) | 2.5 |
| 60* | 78.0 | 72.0 | 80.0 | 4.0 | 71.5 | 80.4 | 79.0 | 71.0 | 70.0 | 55.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 12.0 | 18.0 | 14.5 | 15.3 | 13.3 | 2.0 | 6.0 | 18.0 | 10.5 | 51.0 | 55.0 | 51.0 | 11.0 | (8) | 2.5 |
| 63* | 83.0 | 75.0 | 83.0 | 4.0 | _ | _ | 83.0 | 74.0 | 70.0 | 55.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 12.0 | _ | 14.2 | _ | _ | _ | _ | 18.0 | 10.5 | _ | _ | _ | 11.0 | (8) | 2.5 |
| 65* | 84.0 | 77.0 | 85.0 | 4.0 | 76.5 | 85.4 | 85.0 | 77.0 | 80.0 | 55.0 | 2.5 | 6.0 | 9.0 | 23.0 | 15.0 | 12.0 | 18.0 | 14.2 | 15.3 | 13.0 | 2.0 | 6.0 | 18.0 | 10.5 | 52.0 | 54.3 | 52.0 | 11.0 | (8) | 2.5 |
| 68* | 88.0 | 81.0 | 90.0 | 4.0 | 82.7 | 91.5 | 88.0 | 80.0 | 80.0 | 55.0 | 2.5 | 7.0 | 9.0 | 26.0 | 18.0 | 12.5 | 19.0 | 14.9 | 16.0 | 13.7 | 2.0 | 6.0 | 18.5 | 11.0 | 53.0 | 55.3 | 52.7 | 11.3 | (8) | 2.5 |
| 70* | 90.0 | 83.0 | 92.0 | 4.0 | 83.0 | 92.0 | 90.0 | 83.0 | 80.0 | 57.0 | 2.5 | 7.0 | 9.0 | 26.0 | 18.0 | 12.5 | 18.0 | 14.2 | 15.3 | 13.0 | 2.0 | 6.0 | 19.0 | 11.5 | 54.0 | 56.3 | 54.0 | 11.3 | (10) | 2.5 |
| 75* | 98.0 | 88.0 | 97.0 | 4.0 | 90.2 | 99.0 | 98.0 | 88.0 | 80.0 | 62.0 | 2.5 | 7.0 | 9.0 | 26.0 | 18.0 | 12.5 | 18.0 | 15.2 | 15.3 | 14.0 | 2.0 | 6.0 | 19.0 | 11.5 | 55.0 | 56.3 | 54.0 | 11.3 | (10) | 2.5 |
| 80* | 100.0 | 95.0 | 105.0 | 4.0 | 95.2 | 104.0 | 103.0 | 93.0 | 90.0 | 61.8 | 3.0 | 7.0 | 9.0 | 26.2 | 18.2 | 13.0 | 19.0 | 16.2 | 16.3 | 15.0 | 2.0 | 6.0 | 19.0 | 11.5 | 58.0 | 59.3 | 58.0 | 12.0 | 10.0 | 2.5 |
2) Fitting dimensions d11 and d12 only apply to type M37G with d1 >16 mm.
3) Dimensions in brackets lie either above or below l1N.
4) l 3 valid for M3...N, l21 valid for M3.
*) According to EN 12756.
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).
