Sammi Machinery Co.,Ltd. a Line Blind Valve fabricator and machine shop, is wholly owned subsidiary of line blinding technology and products. The SAMMI LINE BLIND incorporates a tough and simple design that has been developed to provide absolute shutoff, long life and trouble-free service with minimum maintenance.


One operator turns handwheel and unique gear-set mechanism makes a gap without pipe spreading. By Sliding Blind plate manually, Open/Close Blind position is changed. All blinding process completes within 3 minutes safely and easily. 


It take within 3 minutes for one operator to blank a line, operating the handwheel and rotating the blind into place, without line spreading. Again, all inline movement is internal, eliminating the potential for pipe-joint stress.


The Compact type is designed for replacement of existing valves, limited F-F dimension or large diameter pipeline applications or limited space for installation. It is designed with a short face to face, and has tapped bolt holes for easy installation between flanges. The compact design also reduces weight and requirement for extra pipe support.


Non spill type of Line Blind has good advantages in Oil terminal & offshore applications where is limited installation space and marine pollution is strictly prohibited. The 3 sides covered body & compact design prevents ground pollution and it allows to install at parallel pipe lines.

Jack Bolt

The traditional style of line blind offers a broad range of pressures and a lower cost. The basic standard for line blinding for many years. After turning 3~7 jack bolts around the body to make a gap by round bar or wrench and then change the blind plate position. Pipe line needs to be spreaded for operation.