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Check valves 1100 are precision built,factory calibrated valves for motorized control oil flow to industrial burners.. - details see: https://www.machineto.com/gas-valve-10000414

Check valves is used for settingratio when burner is on oil;it is shut off when burning gas.

Precise Control Oil Valves 1100are manual valvesused as limiting orifices in setting oil/air ratio and as tight shutoff valvesto prevent oil dribbling into burners during shutdown. An additional shutoffvalve in the line which permits shutting off the burner without disturbing theprecise control ratios setting position is recommended.

Thesevalves have an adjustable detent mechanism that provides memory for desiredvalve operating position. A spring loaded steel ball fits into a hollow in anadjustable collar, whose position is secured by a setscrew. The handle can epushed past the detent position easily to open the valve wide temporarily forlight-off or clean out.

1100-KManual Precise Controls have cut down handles to lessen chances of accidentalchanges in valve setting.

1100MMotorized Precise Controls, for automatic control of oil flow, are availablewith brackets and linkage for most standard control motors. Although thesevalves have ten dial positions, linkage geometry limits valve travel to sevenpositions.

Construction

1100-03Aand -02A valves have forged brass bodies, Viton U-cup, and precision ground,hardened stainless steel port seats. A V-port in the upper, rotating discexposes varying areas of a circular port in the lower seat. The triangularopening is highly resistant to clogging or fouling.