mechanical seal SS-20R/SS-20 replacement of John crane Type 20R/20 PTFE wedge seal

• Customization: Available
• Structure: Single End
• Pressure: High Pressure Mechanical Seals
• Model NO.: SS-20R/SS-20
• Speed: High-Speed Mechanical Seal
• Temperature: High Temperature Mechanical Seal
• Performance: High Pressure
• Standard: Standard
• Type: HU1
• Balance: Balanced
• Transport Package: Carton
• Trademark: SAISI
• Origin: China
• HS Code: 8484200090
• Production Capacity: 50000PCS/Year

Product Description

SS-Type 20&SS-Type 20R:John Crane Type 20/Type 20R
Structure Description:
Equivalent to John Crane Type 20/Type 20R
SS-Type 20 and SS-Type 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;
Multiple springs are standard,A single spring design is available;
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.
Operating Limits:
Temperatures: -45˚C to 121˚C/-50˚F to 250˚F
Pressures: 10 bar g/150 psig
Speeds:
20: To 5 mps/1000 fpm
20R: To 13 mps/2600 fpm
Materials: 
Seal ring: Carbon (Type 20R),Resin Filled PTFE (Type 20),Silicon Carbide
Secondary Seal: PTFE
Metal parts: 316