Double Block & Bleed Valve



Features :
1.It is a combination of needle & manifold valves thus redusing the number of joints.
2.Spindle : ground and thread rolled.stem tip 17-4ph for long life.
3.Dust cap protects stem threads from external contamination leak tight seal with low operating torque heat code traceability ball hard chrome plated for smooth opertions.

Testing :
1. Hydrostatic shell test is performed at 1.5 times the working pressure.
2. Standard  Test :  each  valves  is  tested  with  nitrogen  at  1,000  psi   for seat  &  packing   leakage,  with  a  max.   Allowable    leak  rate  of  0 .1  std.  Cm3 / min.
3.Optional test are available upon request

Hydro Tests :
1. Performed with pure water at 1-1/2 times of the working pressure.

Lubrication :
1.Molybdenum disulphide (mos2).

Technnical specifications :
1.Working Pressure : 6000 psi (410 bar)
2.Stem Packing : PTFE, Grafoil.
3.Panel mounting on request all valves are 100% factory tested prior to shipment
4.End Connection : bspp,jic,sae,npt,bspt
5.Material of Construction : SS 316, SS 304, C.S, F11, Hastelloy, Monel