Double Block And Bleed Valve By Nssl Limited

We are the reckoned manufacturer and supplier of Double Block and Bleed Valve to the clients from Vadodara , Gujarat , India. NSSL double block and bleed valves may be furnished with or without the bleed valve assembly. Double block and bleed modular valves have evolved to replace the process of bolting together individual valves to provide dual isolation.

This new assembly provides great savings as much as 60% in weight and studies have shown that a 70% installation time saving is also possible. However the greatest savings are to be seen in the reduction of leak paths to atmosphere, therefore reducing the risk of the potential hazards this entails.

Dual isolation is a necessary requirement when maintenance is taking place downstream of the first isolation valve. Cavity venting is provided by either a ball or globe OS & Y vent valve so that trapped pressure between the two isolation valves is safely vented.
SPECIFICATION CHART
ProductDouble Block & Bleed Valves
Size Range1/4 to 18
Pressure Class150 # to 4500# and higher, consult with manufacturer