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Home ProductsPTFE Bellow SealsJohn Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal
John Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal
John Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal
John Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal John Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal John Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal John Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal John Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal John Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal
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John Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal

Minimum Order Quantity : 100PC Price : Negotiated
Packaging Details : box as requirement Delivery Time : 10DAYS
Payment Terms : T/T, Western Union, L/C Supply Ability : 10000000PC/Month
Place of Origin: MADE IN CHINA Brand Name: JR
Certification: iso9001 Model Number: 20R

Detail Information
Material: SIC SIC PTFE Function: Chemically Inert Materials In All Areas And On All Surfaces
Transport Package: Box HS Code: 848420090
Specification: John Crane Type 20r-2.5b PTFE Bellow Mechanical Seal Certificate: ISO9001
Type: John Crane 20R Standard Or Nonstand: Standard
Style: Mechanical Seal 20R Size: 1"/25mm To 4"/101mm

Product Description

John Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal

 

Operations Conditions:

Types 20 and 20R shaft seals feature chemically inert materials in all areas and on all surfaces in contact with the liquid being sealed. Metallic components, springs and clamp ring are located outside the pump seal chamber, isolated from the process liquid.
 
For use with extremely corrosive chemicals, including concentrated acids and salts, strong oxidizing and reducing agents, and chemically active organic compounds commonly used on PTFE filled pumps.
 
The entire seal assembly and component parts employ mechanical drive to prevent slippage on the shaft or sleeve. Seal assembly is outside mounted and internally pressurized.

 

Pressure: ≤ 1MPa
Speed: ≤ 13m/s
Temperature: -35ºC ~+120ºC
Rotary Ring :Filled PTFE/SiC
Stationary Ring: 99%Ceramic/SiC
Secondary SeaI:PTFE
Spring & Other Parts(SS304/SS316/SS316L)

Performance Capabilities:

 

Temperature
-20℃ to 120℃, dependent on the elastomer
Pressure
Up to 0.5mpa
Speed
Up to 15 m/s
End play/axial float allowance
±0.1mm
Size-
2.5
Brand
JR
Face
Carbon, SiC, TC
Seat
Ceramic, SiC, TC
Elastomer
NBR, EPDM, FKM etc.
Spring
SS304, SS316
Metal parts
SS304, SS316
Packing Individual packing ,1 pc in 1 small box is available as well
Chemically Inert Materials: All surfaces in contact with liquid feature chemically inert materials for corrosion resistance.
Corrosion Resistant Design: Suitable for extremely corrosive chemicals, including concentrated acids, salts, and oxidizing agents.
External Metallic Components: Springs and clamp rings are located outside the pump seal chamber, isolated from process liquid.
Wide Temperature Range: Operates effectively within a temperature range of -45C to 121C (-50F to 250F).
High Speed Capability: Type 20R supports speeds up to 13 mps (2600 fpm) for high-performance applications.
Flexible Spring Options: Multiple springs are standard, with single spring design available for specific requirements.
Versatile Material Selection: Seal rings available in Carbon, Resin Filled PTFE, and Silicon Carbide for diverse needs.
Robust Pressure Rating: Designed for medium pressure applications with a rating of up to 10 bar g (150 psig).

John Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal

 

John Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow SealJohn Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow SealJohn Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow SealJohn Crane Type 20R-2.5B PTFE Bellow Mechanical Seal White PTFE Elastomer Bellow Seal

 

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

 

 

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

Tag:

Multi Spring PTFE Bellow Seals

Chemical Pump PTFE Bellow Seals

25mm Bellows Shaft Seal

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