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Mechanical Seals Wb3 25mm PTFE Bellows Double Sided Silicon Carbide Ceramics

Minimum Order Quantity : 1PC Price : Negotiated
Packaging Details : box as requirement Delivery Time : 20-30DAYS
Payment Terms : T/T, Western Union, L/C Supply Ability : 1000PC/Month
Place of Origin: MADE IN CHINA Brand Name: JR
Certification: iso9001 Model Number: WB3-25

Detail Information

Material: TC TC FKM Function: For Oil Pump, Water Pump
Transport Package: Box HS Code: 848420090
Specification: John Crane WB3 25mm Certificate: ISO9001
Type: Bellows PTFE Mechanical Seal Standard: Standard
Size: 25MM Name: WB3 25mm Pump Seal
High Light:

Mechanical Seals 25mm


PTFE Bellows Mechanical Seals


Double Sided Silicon Carbide Mechanical Seals

Product Description

Mechanical Seals Wb3 25mm PTFE Bellows Double-Sided Silicon Carbide Ceramics Seal
Operations Conditions:
  1. WB3 series adppts perfluoroethylene bellows.It is designed with multi-spring structure.The spring of WB2 type is protected threugh a perfluoroethylene cover.This mechanical seal is one of the most commonly used seals for corrosion resistant pumps.

    Single seal
    Independent of direction of rotation
    Tetrafluoroethylene bellows

  2. Temperature:-20ºC to +200ºC
  3. Pressure:≤2.1MPa
  4. Speed:≤23m/s


  • Rotary Ring Face: Carbon/SiC
  • Stationary Ring Face: SiC
  • Elastomers: FKM/PTFE/FFKM
  • Springs: SS304/SS316/SS316L
  • Metal Parts: SS304/SS316/SS316L

Performance Capabilities:

Temperature ≤200℃
Pressure Up to 0.5 Mpa
Speed Up to 10 m/s
End play/axial float allowance ±0.1mm
Face SIC
Seat SIC
Elastomer PTFE
Spring SS304, SS316
Metal parts SS304, SS316
Idividual Packing
Using foam and plastic paper wrapped, then put one piece of seal in one box,finally put in standard export carton.

WB3-25 Single Spring PTFE Bellow Mechanical Seal for Acid Pumps

Structural Features: single end, single spring with PTFE elastomer bellow protection, unbalanced, shift transmission. The metal parts do not have direct contact with the sealed mediums so that the seal would have a long life-time. Inboard installation, which can stand higher medium pressure. The shift transmission is reliable and the whole component is easy to install with a wide scope of applications.

Industrial Standards: Non-standard

Scopes of Application: widely used in chemical engineering, oil painting, electroplating and acid pickling. This mechanical seal was designed for mainly acid pumps and similar types of rotary devices.

Mechanical Seals Wb3 25mm PTFE Bellows Double Sided Silicon Carbide Ceramics 0

  • Mechanical Seals Wb3 25mm PTFE Bellows Double Sided Silicon Carbide Ceramics 1

Mechanical Seals Wb3 25mm PTFE Bellows Double Sided Silicon Carbide Ceramics 2

We are engaged in manufacture and installation exporting and wholesaling quality range of Industrial Seal, Single Spring Seal, Balance and Unbalance Spring Seal, External Mounted Seal, PTFE Bellow External Mounted Seal, Catridge Balance Seal, Multiple Spring Balance Seal, Dry Running Reverse Balance Seal, Agitator Double Acting Unbalance Seal, Single Conical Helical Spring, Rubber Bellow Seal, Multi Spring Seal, Metal Bellow Seal, Elastomer Bellow Seal, Conical Spring Seal, Air Condition Compressor Seal, Auto Cooling Seal, Metallic Bellow Seal,

All ranges of mechanical seals for Flygt Pumps, Grundfos Pumps, Pumps, APV Pumps, Grindes Pumps, Fristam, ABS, Alleeiler, EMU, GEA

Tunchenhagen, Godwin, Hidrostal, Hilge, Johnson, Lowara, Waukesha, Vogelsang Pumps etc.


At the meantime, we could manufacture seals according to your sample or drawing, and design as your request,Customization: Changes of materials for getting other operating parameters are possible. Contact us with your requirements.



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

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