Preinsulated Valves

PRE-INSULATED VALVES

Pre-insulated Butterfly Valves and DPCV in Lugged Design
No need of special (oversize) flanges, as original pipe size flange will accommodate the valve.

ADVANCE PRE-INSULATED VALVE SPECIFICATIONS

Valves Closed Cell Polyurethane Foam (PUF) with density higher than 70 kg/m3 It is suitable for an Operating temperature range — Density of Insulation material (PUF) – 40 Deg C to +120 Deg. C. 70 Kg/m3. The insulation protected by Cladding of HDPE to ensure life of the PUF and to prevent peeling and demage to it.

The Insulation has class P Fire Performance as per H5476 Part 5 for ignitability and mean flames spread of less than 125mm as per BS 4735. This identifies the material as self Extinguishing with fire retardant properties.

Insulation is done such that mounting bolts for the valve are fully enclosed by valve insulation. Standard flanges and bolts can be used with no change in flange insulation method. Flange bolts shall be tightened directly on metal surface of flange and not on top of insulation.

RANGE OF VALVES

Concentric Butterfly Valves – 50mm (2″) to 600mm (24″ Manual or Motorized)

Dual Plate Check Valves – 50mm (2″) to 600mm (24″)

Flanged Balancing Valves – 65mm (2.5″) to 300mm (12 )

AMBIENT CONDITIONS DESIGNED FOR

Insulation is designed as per ASTM C680 to ensure there is no condensation with media temperature of 60C. The valves are designed for 0 wind velocity which is what is observed in shafts and other typical places such valves are installed.