John Crane FBD Pump Single Spring Seal 16mm 100mm Rubber Bellows

Place of Origin Guangzhou, China
Brand Name Bogeman
Certification ISO SGS
Model Number FBD
Minimum Order Quantity 5/PCS
Price US $ 1.8-38/PCS
Packaging Details Carton
Delivery Time 2/day
Payment Terms L/C, D/A, D/P, T/T, Western Union, MoneyGram
Supply Ability 10000/month

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Product Details
Model FBD Speciflcation Shaft Hole 16-100mm
Material CAR CER SSIC TC NBR EPDM Usage Unbalanced
Traemark Bergman Name Single Spring Seal
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20mm Single Spring Seal


100mm Single Spring Seal


100mm Rubber Bellow Mechanical Seal

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Product Description

John Crane FBD Pump Single Spring Seal 16mm 100mm Rubber Bellows​


John Crane FBD Pump Seal Mechanical Seal Single Spring Rubber Bellows



Model NO.
Metal bellows seal
Manifold Pump Seal
FBD Seal
Grundfos Pump Seal
Rubber Bellow Seal
Che Pump Seal
Mechanical Seal
Flygt pump seal
Pump Seal
Industrial Pump
Oil pump seal
ABS Pump Seal
Blackmer Seal
Food pump seal
Lowara Pump Seal
Oil pump seal
Automotive pump seal
Skeleton oil seal
16mm and 100mm
HS Code




FBD mechanical seal series is uneasy to be blocked due to its single spring structure. It has advanced rotating ring floatability so that reduced compensational resistance. This series is suitable for oil, water and other weak corrosive medium.

With full enclosed elastomer bellows design
Insensitive to shaft play and run out
Bellows should not twist due to bi-directional and robust drive
Single seal and single spring
Conform with DIN24960 standard.


Operating Limited:

Shaft diameter 16~100mm
Pressure up to 1.2Mpa
Temperature -20~180°C
Slidingvelocity 10m/s




Rotary Ring Car / SIC/TC/Cer
O-Ring , EPDM, NBR, AFLAS, Kalrez,PTFE
Spring and Metal Parts SUS304, SUS316
Stationary Ring Car / SIC /TC/Cer





• Spring unit averted from the product so no sticking and clogging of the springs
• Safe operation (no fractures) because of seal face locking by square pin
• Suitable for pressure reversals
• Operation in vacuum without additional seat locking possible
• No damage of the shaft by a dynamically loaded O-Ring
• Small installation sizes
• Best suitable for conversions, no adaptations of the pump
• Insensitive to solid containing and abrasive media
• Advantages of a balanced seal even with plain shafts
• Insensitive to shaft movements because of the stationary design




• Water and waste water technology
• Chemical industry
• Refining technology
• Dirty, abrasive and solid containing media
• Fugitive hydrocarbons (no API seal!)
• Sticky and stringy media
• Chemical standard pumps
• Sewage pumps


Model d D D1 L1 L2
BGM FBD-16 16 34 30 8 25.2
BGM FBD-18 18 36.8 32 8 25.2
BGM FBD-20 20 38.8 34 8 25.2
BGM FBD-22 22 41.5 36 8 25.2
BGM FBD-25 25 44.8 39 8 26.2
BGM FBD-28 28 48.5 43 8 26.2
BGM FBD-30 30 52 48 8 26.2
BGM FBD-35 35 57 53 10 30.2
BGM FBD-40 40 67 58 10 34.2
BGM FBD-45 45 73 63 10 36.2
BGM FBD-50 50 79 68 10 41.2
BGM FBD-55 55 84 73 12 41.2
BGM FBD-60 60 90 79 12 41.2
BGM FBD-65 65 98.5 86 12 49.2
BGM FBD-70 70 103.5 91 12 52.2
BGM FBD-75 75 110.5 96 12 52.2
BGM FBD-80 80 120 105 14 56.2
BGM FBD-85 85 125 110 14 56.2
BGM FBD-90 9o 132 115 14 56.2
BGM FBD-95 95 137 120 14 56.2
BGM FBD-100 100 144 125 14 62.2
BGM FBD-110 110 157 135 16 62.2
BGM FBD-120 120 169.5 145 16 73


John Crane FBD Pump Single Spring Seal 16mm 100mm Rubber Bellows 0John Crane FBD Pump Single Spring Seal 16mm 100mm Rubber Bellows 1


We are a manufacturer. All seals have bulk inventory and can be shipped to you quickly. We promise to ship you in small quantities within 3 days.Advanced technology, excellence, replace original


1. Different models of mechanicals seals for a wide variety of Grundfos® pumps, among them: CR(N), NB, NK, CLM, LP, TP, etc. Available in diverse combinations of materials and different diameters: 12, 16, 22, 28, 33, etc. Also mechanical seals for Sarlin®. Division of waster pumps. Available in various materials: silicon-graphite carbide, silicon carbide-silicon carbide; combined with EPDM and FKM elastomers.
2. Mechanical seals are available for different references Gorman-Rupp® pumps. Special models for the transfer of clean water, sewage, oil industry, agriculture and others.
3. Mechanical seals for Fristam® pumps. Wide range of models and materials in the most standard diameters: 22,30 and 35 mm. Different assembly possibilities for the most well-known pump models: FP, FL and FT.
4. Broad range of mechanical seals compatible with Flygt® and Grindex® waste water pumps. These mechanical seals are characterized by their easy and fast installation, without having to make any modification to the pump. Manufactured in stainless steel and in solid tungsten carbide. Special tools are not necessary for their installation.
5. Mechanical seals for EMU® pumps. They get two static faces and one rotating face. We can supply the complete seal or spare faces.
6. Different designs of mechanical seals for Ebara® pumps, single and double seals in combinations carbide-silicon carbide and graphite-aluminium oxide.
7. Mechanical seals for all types of Calpeda®pumps: centrifugal pumps, multistage, submersible. Different models of mechanical seals in a wide range of materials.
8. Mechanical seals compatible for APV®pumps, among them: Puma, ZMA, ZMB, ZMD, ZMS, ZMH, ZMK. Rosista®and Pasilac®, W and W+. Some designs with wave spring like the special seals for APV Howard® pumps and Crepaco Clean Line®. All of them have been manufactured in materials suitable for working with fluids such as juices, milk and drinks in general.
9. Different models of mechanical seals compatible for Alfa-Laval® pumps series CM, FM, MR, LKH,GM and ALC. Also the models for the range of lobular SSP and SR pumps. Mechanical seals in different combination of materials tungsten carbide, silicon carbide, graphite; combined with different types of elastomers: NBR, EPDM and FKM.



Fixing and Applying Directions of Mechanical Seals

1. Select Appropriate mechanical seal to match the materials according to work conditions and host machine equipment.
2. The radial acting deviation for the shaft(shaft sleeve) of the installed mechanical seal shall be 0.04mm by maximum
while the axial movement value of the rotor shall be no more than 0.1mm.
3. The seal cover (or shaft cover) of the stationary ring of the installed mechanical seals,the vertical degree of the seal
face should be 0.04mm by maximum.
4. When installing the mechanical seals,the shaft(shaft sleeve),seal chamber,seal face as well as the mechanical seal
must be cleaned in order to keep from any medium to sealing part.
5. When conveying medium of over high or low temperature,with medium which are easy catch fire,easy for explosion.
Related mechanical seal standards must be referred to take appropriate measures such as quench,rinsing,coolong and
6. Appropricate lubrication must be choosen when mechanical seal is installed.The installment size of the mechanical
seal must be guaranteed to the installment instruction.
7. Before the machine starts running,the hermetic compartment shall be full of medium and well lubricated.Dry friction
which may lead to the damage of the air-tightness is strict forbidden.


Question 1: Are you a factory or a trade company?
Answer: We are a factory and have our top sales for the trade service.
Question 2: Can I try to get a SAMPLE before the order?
Answer: Sure. You can ask for the samples. Usually they're free.
Question 3: Where is your factory located? How can I visit there?
Answer: Our factory is located in Ningbo, China. You can fly to Ningbo or Shanghai airport directly. All our clients, from home or abroad, are warmly welcome to visit us!
Question 4: How does your factory do regarding quality control?
Answer: Quality is priority. We always attach great importance to quality controlling from the very beginning to the very end. Our factory has gained ISO9001 authentication.
Question 5: How about the lead time?
Answer: Within10-20 days after getting the prepayment.
Question 6: How can we pay?
Answer: For small sample shipping cost, you can pay either by paypal or by T/T. And by T/T at sight for large amount of the order.
Question 7: If OEM available?
Answer: Yes, we provide all of our products OEM /ODM service.
Question 8: If I can buy pumps or pump parts from your company?
Answer: Yes , we also provide pumps and pump parts, such as Lobe pumps, Compound & homogeneous pumps, Homogeneous & emulsification pumps and so on

John Crane FBD Pump Single Spring Seal 16mm 100mm Rubber Bellows 2