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RO-C Balance Mechanical Seal Multi Spring 18m/S

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: RO-C

Detail Information

Material: SIC SIC FKM Cer Car Nbr Function: For Oil Pump, Water Pump
Transport Package: Box HS Code: 848420090
Specification: Mechanical Seal John Crane Type 57U Certificate: ISO9001
Type: Mechanical Seal Flowserve RO-C Standard Or Nonstand: Standard
Style: Mechanical Seal Multi Spring John Crane Type 57U Size: 20-100mm
High Light:

RO-C Balance Mechanical Seal


18m/s Balance Mechanical Seal


RO-C Multi Spring Mechanical Seal

Product Description

Multi Spring Balance Mechanical Seals Multi Spring Seals RO-C John Crane type 57U Seal​

Operations Conditions:

  1. Equivalent to Flowserve RO type seal and John Crane type 57U
    Mutiple spring design
  2. Temperature:-20--180℃ 
  3. Speed:18m/s
  4. Pressure:10bar
  5. Standard Size:20--100mm


  • Rotary ring: silicon carbide,carbon,
  • Secondary seal: NBR,EPDM,FKM,PTFE
  • Variant with PTFE secondary seals for high chemical resistance
  • Spring and parts: SS304,316
  • Easy to install and uninstall

Performance Capabilities:

-20℃ to 200℃, dependent on the elastomer
Up to 1.0MPA
Up to 18 m/s
End play/axial float allowance
20mm -100mm
Carbon, SiC, TC
Ceramic, SiC, TC
SS304, SS316
Metal parts
SS304, SS316
PackingIndividual packing ,1 pc in 1 small box is available as well
  • Rotary can be solid or insert structure;
  • Stationary can be G9 seat and two oring structure.
  • We name them RO-A, RO-B and RO-C

RO-C Balance Mechanical Seal Multi Spring 18m/S 0

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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