John crane type 1-3 3/8 mechanical seals for chill water pumps:





Mud centrifugal pump parts, Sand pump parts and ANSI pump parts in stock! Quick delivery and OEM QUALITY!

Type 1 tungsten carbide seal and shaft sleeve are used for mud centrifugal pumps and ANSI pumps such as mcm®, mission® magnum, halco®, mattco, harrisburg®, Demco®, DL, Kemtron®, Marindco®, national oilwell, mission®2500 supreme, spd mud hog®, SDS mud hog®, SiteTec, derrick® premium 2500. Curflo®,  Forum® and other major brand pumps.


Type 1-2.5" seal is identical to Mission pump seal NOV# 22451-1, 648414308 and T1-3.5" is identical to Mission Magnum XP pump seal NOV#24306, 658416102.
Trisun double cartridge seal is identical to Mission pump seal KCD Olympia double cartridge mechanical seal.  .

Type 1 seal faces can be added diamond coating and has longer life time. We are the only one China seal manufacturer who can produce diamond coating on seals. 

Dimensions: 3.5inch, 2.5 inch, 1.875 inch and 1.5 inch
Material: Tungsten Carbide  VS  Tungsten Carbide, Viton, SS316 machining parts

Type 1 seals, same as NOV #22451-1, fit the following pumps too:
MISSION MAGNUM 1 and XL MUD PUMPS
NOV HALCO 2500 SUPREME MUD PUMPS
SPD 2.5″ MUD HOG CENTRIFUGAL PUMPS

Its sleeves are made of stainless steel and has two choices:
stainless steel and stainless steel with ceramic coating.
The sleeves with ceramic coating have longer service time and very good quality.

In harsh conditions, these pumps use cartridge seals and we also produce cartridge seals.

We also have other pump parts for MCM pumps, such as housing, impeller, bearings, oil seals etc. 













If you need more information about seals and sleeve, pls. contact me directly.