Good steam engineering practice is to generate steam at high/maximum working pressure, distribute at higher pressure and utilize at low pressure with pressure reduction.

It is recommended to operate the boilers close to maximum operating/design pressure.This ensures good quality of steam with high dryness fraction.Process equipments are normally designed for much lower pressure of steam.

ADVANTAGE OF PRESSURE REDUCTION

  • Steam is transported to the point of utilization at higher pressure.This permits use of smaller pipe diameters leading to reduce steam piping and insulation cost.
  • Reduce plant equipment cost due to use of small thickness plantes leading to substantial savings in initial plant cost.
  • Gives more latent heat, per Kg of steam to industrial equipment like heat exchangers, jacketed kettles, distillation column re- boilers, etc. resulting in lower fuel consumption.

 

PRESUURE REDUCING VALVE (TPRV)

 

APPLICATION:

  • Pressure reduction for saturated steam and compressed air

 

RANGE:

  • Capacity: 250 Kg/h Max
  • Size 15, 20, 25 mm NB

 

TECHNICAL SPECIFICATIONS:

  • Design pressure body PN 25
  • Max upstream pressure 19 Kg/cm2(air)
  • Max downstream pressure 8.6 Kg/cm2
  • Designed temperature 210 degree cel.
  • End connection screwed BSP/NPT
  • Down stream set pressure range 0.14 to 1.7/1.4 to 4/3.5 to 8.6 Kg/cm2

 

MOC:

  • Body SG Iron GGG 40.3
  • Internals SS

 

FEATURES:

  • Special set pressure locking arrangement
  • Suitable for steam and compressed air
  • Compact design fully self acting
  • No external signal required for down stream pressure control
  • Operates even on low flow conditions
  • Both IBR Certified & Non IBR pressure reducing valve available

 

 PRESSURE REDUCING STATIONS

 

Superior quality designed pressure reducing station as a ready to install equipment gives the following distinct advantages

  • Designed as per best steam engineering practices.
  • Assured consistent downstream reduced pressure.
  • Superior quality of components and best workmanship.
  • Savings in erection and commissioning time.
  • Reduces fuel consumption.
  • Excellent network of our reprensentatives ensure timely commissioning and technical support.
  • We offer single point contact for all Sream Accessories and steam Boilers.

 

PRESSURE REDUCING & DESUPERHEATING STATION (PRDS)

 

PRDS systems are designed to reduce the steam pressure to operating pressure and also bring the outlet steam temperature closer to that of saturation.

Suitably designed pressure reducing valve installed on superheated steam line, reduces steam pressure to desired operating pressure.During this process the steam temperature also reduces following superheated steam curve, however the degree of superheat remains unaltered.

The steam temperature is reduced close to saturation by injecting water into high velocity steam by controlled water flow through water control valve.

Conventionally steam pressure reduction and temperature reduction were done in two different units. Now both these functions are carried in one unit which is combined pressure reducing and desuperheating valve.

DESUPERHEATING SYSTEMS (DSH)

De superheating systems are designed to reduce the temperature of superheated steam close to that of saturation.

The steam temperature is reduced close to saturation by injecting water into high velocity steam by controlled water flow through water control valve.

Fixed Nozzle De- super heater

  • The Simplest Design in De super heater family.
  • mainly used when the pressure difference between the main steam line and spray water in high.
  • inline type assembly for steam line size 6″ NB and above.
  • Mini cooler for steam line size up to 4″.
  • Maximum Turn down 3:1.

 

VENTURI DE- SUPERHEATER

  • Mainly used when the pressure difference between the main steam line and spray water is low.
  • better mixing of spray water with main steam by swirling action.
  • Maximum Turn down 8:1

 

VARIABLE  NOZZLEDE-SUPERHEATER

  • Best Design in De-superheating Family.
  • Constant Pressure Drop Across the nozzle.
  • High Turn Down up to 16:1.
  • Better Downstream Temperature Control.