M74F or M74FD with pumping screw for KQSN and Andritz pumps.
Type M74 multiple spring mechanical seal with G9 seat. pls. check the pictrues
Double mechanical seals used for chemical pumps: M74D, 153D, 153 and 115.
our Mechanical seal model M74D can Replace BURGMANN M74D,which is widely used for industrial pumps or chemical pump IH50-32-160. .
Our M7N replaces Burgmann M7N and it is wave spring design;
Our M74 replaces Burgmann M74 and it is multiple spring design;
Our M74F with pumping screw replaces Burgmann M74F and it is multiple spring and pumping screw design.
M74F-D
Dimensions, items and descriptions as for M74-D, but with pumping screw.
Dependent on direction of rotation. Viscosity ≤ ISO VG10).
Type 153D, type 153, type 113:
- Mechanical seals for chemical pumps of type Х, ХМ, АХ
- Secondary fluoroplastic seals provide outstanding chemical resistance
- are manufactured according to OST 26-06-1493-87
Trisun is a professional manufacturer of mechanical seals and OEM pump seals since 1997.
Our seals are interchangeable with John Crane, Burgmann, AES, Flowserve, Fluiten, Roten, Sealtek etc.
Audited Supplier 
){kind=link}
){kind=link}