sensitral oil Valve can be adjusted sensitively and accurately with a screwdriver.Turning the screw counter clockwise increases flow.A cap conceals the adjustment and discourage tampering with  the setting.If an adjestment is needed,replace top cap on valve body to reduce air or gas leaks.
  The V-port adjustment is in a removable gas cartridge assembly,simplifying inspection or replacement.Max set gas valves have brass internals: 1000-K Valves have iron internals for coke gas and other corrosive to brass: 1001-TK Valves are for hot gases.