Mechanical Seal John Crane Type 687 Mechanical Seals Metal Bellow Mechanical Seal

• Customization: Available
• Structure: Single End
• Pressure: High Pressure Mechanical Seals
• Model NO.: 687
• Speed: Ultra-High-Speed Mechanical Seal
• Temperature: Temperature Mechanical Seal
• Performance: Corrosion
• Standard: Standard
• Type: O-Ring Mechanical Seals
• Balance: Balanced
• Function: for Pump, Compressor
• Certificate: ISO9001
• Transport Package: Carton
• Specification: as requirement
• Trademark: JR
• Origin: China
• HS Code: 848420090
• Production Capacity: 1000000PCS/Year

Product Description

Mechanical seal-multiple spring which are availble in a wide varietyh of elastomers for handing practically every industril fluid. All components are held togther by a snap ring in a unized construction design and can be repaired easily on-site.

 

High Quality Multiple Spring O-ring Mechanical Seals

Description:

Replacement to:

Replacing the  mechanical seal of John Crane 687

1. Operational Conditions: 
Temperature: -20ºC to +180ºC
Pressure: ≤2.5MPa
Speed: ≤15m/s
2. Materials: 
Stationary Ring: Ceramic, Silicon Carbide, TC
Rotary Ring: Carbon, Silicon Carbide
Secondary Seal: NBR, EPDM, Viton, PTFE
Spring and Metal Parts: Steel 
3. Seat Type: 
4. Applications: Clean water, sewage water, oil and other moderately corrosive fluids
 

Operational Conditions:
Temperature:	-20ºCto+180ºC
Pressure:	≤2.5MPa
Speed:	≤15m/s
Materials:
Stationary Ring:	V1,Q1,Q2,U2
Rotary Ring:	B,A,Q1,Q2
Secondary Seal:	P,E,V,M1,M2
Spring and Metal Parts:	F,G,M
Seat Types:
Standard:
Alternative:
Applications:	Clean water, sewage water, Oil and other moderately corrosive fluids

Mechanical seal could be interchangeable with John crane, Aesseal, Vulcan, Roten seals etc.
 
All ranges of mechanical seals for Flygt Pumps, GF 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.
 
With advanced designer&manufacturer of machanical seal, for industrial pump, 
its range involves in: industrial pump mechanical seal, mixer and agitator seal, cartridge seal, metal bellows seal, auto cooling pump seal and suto air-condition compressor lip seal.
It is widely used and highly reliable in food, drink, petroleum, chemistry, 
refinery, paper making, pharmacy, power and auto industry etc.
 
Characteristics:
High and low temperature resistant, acid-alkali resistant, ozone resistant, aging resistant, weather resistant, good insulation property, anti-toxic, good air-permeable, etc.
 
  
Welcome to quote for more details. 







 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. Please kindly visit our website: supseals.en.made-in-china.com