199ASV Anti-Syphon Valve

 

The 199ASV Anti-Siphon Valve is designed to help prevent siphoning of an aboveground storage tank should a leak or break occur in the fuel supply line.

The 199ASV is available in female NPT threads with four different factory-adjusted hydrostatic head pressure settings.

Features & Benefits
  • Factory-Adjusted Hydrostatic Head Pressure Settings - Allow for quick, safe and easy installation on above ground tanks.
  • Internal Pressure Relief Valve - Helps protect piping & fittings from damage due to thermal expansion. Set to operate between 20 to 40 PSI (1.3 to 2.7 bar).
  • Aluminum Bodies - Compatible with gasoline, diesel, kerosene, ethanol, methanol, fuel oil, and jet fuels.
  • Temperature Rating - -20°F - 120°F (29°C - 49°C).
  • UL approved.

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Technical Information

Materials
Body: clear anodized aluminium.
Bonnet: powder-coated aluminium.
Cap: powder-coated aluminium.
Spring: stainless steel.
Poppet: hard-coated aluminium.
Screw: hard-coated aluminium.
Poppet Seal: Nitrile.

Operation
The 199ASV installs on the top of an aboveground storage tank with a suction rod on the inlet and the fuel supply line (to a remote pump) on the outlet of the valve.

A poppet in the valve remains normally closed, isolating the tank from siphoning. When the remote pump is activated, it overcomes a factory-adjusted spring set to a predetermined hydrostatic head pressure and allows flow of fuel out of the AST. 

An internal pressure relief valve helps absorb thermal expansion in the fuel supply line.

Ordering Information
Item Number
in.
mm
Kgs
Hydrostatic Head Pressure*
(Dimension A)
199ASV-1075
¾
19
.725
0'-5'
199ASV-2075
¾
19
.725
5'-10'
199ASV-3075 ¾
19
.725
10'-15'
 
199ASV-1100
1
25
.725
0'-5'
199ASV-2100
1
25
.725
5'-10'
199ASV-3100
1
25
.725
10'-15'
 
199ASV-1150
1½
38
.907
0'-5'
199ASV-2150
1½
38
.907
5'-10'
199ASV-3150
1½
38
.907
10'-15'
 
199ASV-1200
2
51
.907
0'-5'
199ASV-2200
2
51
.907
5'-10'
199ASV-3200
2
51
.907
10'-15'
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199ASV-1075 (¾in / 19mm), Weight (0.725kg), Hydrostatic Headd Pressure /Dimmension A/ (0'-5')
199ASV-1100 (1in / 25mm), Weight (0.725kg), Hydrostatic Headd Pressure /Dimmension A/ (0'-5')
199ASV-1150 (1½in / 38mm), Weight (0.907kg), Hydrostatic Headd Pressure /Dimmension A/ (0'-5')
199ASV-1200 (2in / 51mm), Weight (0.907kg), Hydrostatic Headd Pressure /Dimmension A/ (0'-5')
199ASV-2075 (¾in / 19mm), Weight (0.725kg), Hydrostatic Headd Pressure /Dimmension A/ (5'-10')
199ASV-2100 (1in / 25mm), Weight (0.725kg), Hydrostatic Headd Pressure /Dimmension A/ (5'-10')
199ASV-2150 (1½in / 38mm), Weight (0.907kg), Hydrostatic Headd Pressure /Dimmension A/ (5'-10')
199ASV-2200 (2in / 51mm), Weight (0.907kg), Hydrostatic Headd Pressure /Dimmension A/ (5'-10')
199ASV-3075 (¾in / 19mm), Weight (0.725kg), Hydrostatic Headd Pressure /Dimmension A/ (10'-15')
199ASV-3100 (1in / 25mm), Weight (0.725kg), Hydrostatic Headd Pressure /Dimmension A/ (10'-15')
199ASV-3150 (1½in / 38mm), Weight (0.907kg), Hydrostatic Headd Pressure /Dimmension A/ (10'-15')
199ASV-3200 (2in / 51mm), Weight (0.907kg), Hydrostatic Headd Pressure /Dimmension A/ (10'-15')
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