For 14yrs, Sammi Machinery offers a wide range of line blinds, line blind, line blind valves, blind valve, line valves, line binding and spectacle blind. It is used to obtain absolute shutoff of flow and cost saving. We are the leader in blind flange, industrial valves and marine valves.

Cost effectiveness

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Necessary time for blinding or deblinding

Size Ranged	Blinding Technique		Saving Effect
Size Ranged	Solid Plate between flanges(typical)	Sammi line Blind	Saving Effect
1/2"~12" (DN15 ~DN300)			- 2~16 man-hours - Gasket, bolts & nuts, tools - Time for draining and line cooling
14"~24" (DN350~DN600)			- 16~120 man-hours - Gasket, bolts & nuts, tools - Time for draining and line cooling

Increase productivity

Size	Blinding(typical)	Deblinding(typical)	More production
1/2" ~ 6"	1 to 4 hours	1 to 4 hours	2 to 8 hours
8" ~ 24"	4 to 12 hours	4 to 12 hours	8 to 24 hours

- time saving for draining and line cooling is not included
- less pre-purge time
- immediate work after stopping line

Saving cost for maintenance

- long life and simple design criteria
- no consumable parts except gaskets- it shall be replaced in case of broken after visual checking
- no tools, wedges, crane, bolts are neccery

Positive shutoff

- quick and positive response in emergency
- prevent vacuum losing
- prevent contamination by mixing
- prevent leaking accident in service
- prevent environmental pollution