FEATURES

- Integral outlet pressure sensor and measuring ports.
- Double seated valve allows for higher flow rates and lower pressure drops in a smaller valve body.
- DC coil provides power without inrush and long duty cycle.
- The ability to have varying inlet and outlet connections allows installation in multiple configurations. 

APPLICATION

- The VAD combination valve allows for the compact installation of the appliance regulator and safety shutoff valve in the main or burner gas train.  

- The VAG combination valve allows for the compact installation of the ratio regulator and safety shutoff valve in the burner manifold. 

- The VAH combination valve allows for the compact installation of a flow regulator and shutoff valve in the burner train. This system, in conjunction with an external limiting orifice valve and measuring orifice, compensates fuel flow for changes in the air flow in preheated combustion air applications. 
- The VAV combination valve allows for the compact installation of the ratio regulator and safety shutoff valve. The VAV has a low fire offset in addition to the typical high-fire offset. This valve is used to adjust for the varying back pressure in the combustion chamber. 

* VAD – Pressure reducing regulator/safety shutoff valve .
* VAG – Fuel-air ratio regulator/safety shutoff valve.
* VAH – Fuel-air flow regulator/safety shutoff valve. 
* VAV – Fuel-air ratio regulator with low end offset/safety shutoff valve .

Combination Safety Shut-off Valves

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