Flow Control Valves and Valve Assemblies

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M- 10" x 4" - M x 3/4" -O -200 MICRO-RATIO triplex valve arrangement with optional companion flange set

M- 4" x 1-1/2" -P MICRO-RATIO Valve



MICRO-RATIO Valve assemblies are used for air, gas and oil proportioning control. The multiple screw cam assembly provides mechanical adjustment capabilities to the air/fuel ratio at each valve position throughout the entire capacity range of your burner system.

Throttling range is fully adjustable and designed to operate over the extremely wide turndown capabilities of Maxon's modern burner systems.

Stand-by fuel requirements are simplified by using tandem-linked "air-gas-oil" valves to provide single point control for multiple fuel or multiple zone systems.


Poppet-style Gas/Oil SYNCHRO Valve

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Butterfly-type Gas SYNCHRO Valve

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1" -0 -400 with totaly enclosed cam

2-1/2" -M SYNCHRO Valve with standard cam assembly


SYNCHRO Valves may be used independently for individual adjustable gradient fuel flow control, or in tandem with other fuel control valves for more sophisticated multi-zone control applications. Totally enclosed cam option is available for greater protection against hostile environments.

Smaller sizes of SYNCHRO Valves use characterized "V" ports in a poppet disc for greatest refinement of control. Larger sizes feature a butterfly-type disc for maximum capacity with minimum pressure drop for gas or air flows.

VARCOfor all your valve needs.


Please feel free to contact us with any questions about our products.

Thank you for visiting!

P.O. Box 630277   Houston, TX  77263-0277
713-783-7600    fax:281-988-5701
email:  labco2@flash.net