Tank Blanketing

..... In a nutshell

What?

A tank blanket gas regulator (BGR) controls the flow of a gas, typically nitrogen, into a vessel or line. The role of the valve is to maintain the pressure of the blanket by opening when blanket pressure drops below a set point and closing when it reaches the desired level.

 

Why?

Because by blanketing a product with an inert gas like nitrogen, you protect it from contamination with air. This is important with fine chemicals and in marine environments where ingress of air could also mean ingress of salt and moisture. Blanketing with an inert gas is also safer than having a vapour space filled with a volatile vapour. Additionally, when a tank with a blanket vents to atmosphere, it is venting that blanket, not the valuable/dangerous/odorous/volatile/noxious gas below the blanket.

 

Where?

Fine Chemical Manufacturers, Sewage Works, Fuel Storage Sites and anywhere where the product will be affected by ingress of atmospheric air or where the product cannot be vent to atmosphere.

At Assentech, we choose to supply BGRs from Groth Corporation, not only because they are of the highest quality but because they are a simple design with a few moving parts as possible which makes for long lasting component.

Model 300 Blanket Gas Regulator

67bFeatures

  • Simple operation, spring-loaded “push-push” balanced piston design
  • Bubble-tight shut-off
  • Variable orifice, field-adjustable flow capacity
  • Single stage regulator
  • Set pressure is field adjustable
  • Modulating opening
  • Minimal lockup and droop

 

 

Sizes ½” or 1”
Body Material 316 SS
Pressure Setting 0.5 InWC to 15 psig
Inlet/Outlet Options 1/2" FNPT
  1/2” 150# ANSI RF Flange
  1” 150# ANSI RF Flange on 1/2” Valve
  DN 15 (1/2”) PN 10/16 DIN RF Flange
  DN 25 (1”) PN 10/16 DIN RF on 1/2” Valve
  1/2" Sanitary Connections
  1/2" Quick Couplings
  1” FNPT
  1" 150# ANSI RF Flange
  2” 150# ANSI RF Flange on 1” Valve
  DN 25 (1”) PN 10/16 DIN RF Flange
  DN 50 (2”) PN 10/16 DIN RF Flange on 1” Valve
  1" Sanitary Connections
Seal Material Options Buna-N
  CHEMRAZ
  EPDM
  Viton
  Specials available upon request
Features
  • Simple operation, spring-loaded “push-push” balanced piston design
  • Bubble-tight shut-off
  • Variable orifice, field-adjustable flow capacity
  • Single stage regulator
  • Set pressure is field adjustable
  • Modulating opening
  • Minimal lockup and droop

 

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