Audited Supplier
Type-21
Single End
Medium Pressure Mechanical Seals
General Speed Mechanical Seal
Temperature Mechanical Seal
Corrosion
Standard
Unbalanced
on Stock
John Crane Type 21
T21
John Crane Seal
QT
Customized Package
standard
China
84842000
Product Description
T21 is Alternative to:
John Crane type 21
US SEAL type C
AES P04,
Flowserve 110,
Roten 21A,
Sealol 43 CU Short seal,
Sterling 212A,
Vulcan 11
The seat could be CUP seat or O-ring groove seat.
Operational Condtions:
| Temperature | -20°C to+120°C |
| Pressure | ≤1.0MPa |
| Speed | ≤15m/s |
Materials:
| Stationary Ring | Ceramic(Alumna) Silicon Carbide,Sintered Pressureless Silicon Carbide ,Reaction bonded Co-binder tungsten Carbide |
| Rotary Ring | Resin lmpregnate Carton Graohite Antimony lmpreg Carbon Graphite Silicon Carbide,Sintered Pressureless Silicon Carbide ,Reaction bonded |
| Secondary Seal | NBR EPDM Viton |
| Spring and Metal Parts | Stainless steel 304 Stainless steel 316 |
Seat Type:
| Standard | T11 |
| Alternative | CT20,T21 |
Applicatins:
| Clean water,sewage water,oil and other moderately corrosive fluids. |
