Pipeline blinding equipment

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Spectacle blind (obturator) is traditional, but not so comfortable in operation solution: it requires to drain pipeline and disassemble flanges coupling every time

Turning or shifting line  blinds enable to reduce operation time dramati­cally: its require just to loosen and tighten several fixative nuts. Nevertheless, draining of the pipeline is also required

Blind flange valve enables avoid draining – the hole-less body keeps media inside. The operation is very simple: just to remove the cover and put in/pull out the shut-off insert with the tightening cheeks

Fitting-in blind makes to block pipeline possible without depressurization. The shut-off insert maybe fit in and extracted with a special tool

At least, dual expanding plug valve, equipped with gearbox or electric actuator, enables to avoid manual works completely. Special design of the shut-off piece (90° turning wedge with lateral  tightening cheeks) grants 100% bi-directional tightness

Comparison table

 

without
drainage

without depressurization

bi-direction tightness

double block
& bleed

without manual works

spectacle blind

 

 

+

 

 

line blind

 

 

+

 

 

blind flange valve

+

 

+

+

 

fitting-in blind

+

+

 

+

 

dual expanding plug valve

+

+

+

+

+

 
Phone:  +371 6789-3960 Office:  Berzaunes street 7, LV-1039,
+371 6789-3962 Riga, Latvia
Fax:  +371 6789-3961 E-mail:  pipes@contic.lv