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John Crane 680 Mechanical Metal Bellow Seal For Submersible Pumps

Minimum Order Quantity : 10PC Price : Negotiated
Packaging Details : box as requirement Delivery Time : 20-30DAYS
Payment Terms : T/T, Western Union, L/C Supply Ability : 10000PC/Month
Place of Origin: MADE IN CHINA Brand Name: JR
Certification: iso9001 Model Number: 680

Detail Information

Material: SIC SIC FKM Function: For Oil Pump, Water Pump
Transport Package: Box HS Code: 848420090
Certificate: ISO9001 Type: John Crane Seal
Standard Or Nonstand: Standard Specification: 680John Crane Mechanical Seal
Size: Inch As Drawing Product Name: Metal Bellow Mechanical Seal 680
High Light:

John Crane 680 Mechanical Seal


John Crane 680 Metal Bellow Seal


Metal Bellow Seal For Submersible Pumps

Product Description

Mechanical Seal Of John Crane 680 Metal Bellow Seal For Submergible Pumps

Operational Conditions:
  1. TYPE 680 Low-temperature, General Duty All-Alloy-20 Edge-welded Metal Bellows Seal
  2. Temperature: -20---220ºC
  3. Speed: 20m/s
  4. Pressure: 25bar
  5. Standard size: 18-100mm/0.75''-4.0''
  • Stationary Ring: SiC/TC
  • Rotary Ring: Carbon/SiC/TC
  • Secondary Seal: NBR/EPDM/FKM
  • Bellow: Hastelloy-C/Alloy 20/AM350
  • Metal Part: Hastelloy-C/Stainless Steel 304, 316


Performance Capabilities:


-30℃ to 200℃, dependent on the elastomer
Up to 10 bar
Up to 15 m/s
End play/axial float allowance
18MM TO 100MM, 0.750 TO 4 INCHES
Carbon, SiC, TC
Ceramic, SiC, TC
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.
  • Replacement to:Replacing the mechanical seal of John Crane 680

              John Crane 680 Mechanical Metal Bellow Seal For Submersible Pumps 0


John Crane 680 Mechanical Metal Bellow Seal For Submersible Pumps 1John Crane 680 Mechanical Metal Bellow Seal For Submersible Pumps 2John Crane 680 Mechanical Metal Bellow Seal For Submersible Pumps 3John Crane 680 Mechanical Metal Bellow Seal For Submersible Pumps 4

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

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