Mark IV® Flow Switch Angle Check Valve

Automatic Flow Control

  • Pumping rate is controlled from the nozzle to permit high pumping speeds and delivery control
  • Check valve required by weights and measures
  • Flow control switch and check valve combined in one unit
  • Reduces hose pressure at idled speed and eliminates damaging surge and shock pressures
  • Prevents hose reel movement

  • Available with electric or air switch
  • Conversion kits are available

Part #InletOutletSwitchModel #
 068182″ Female2″ GroovedElectricSM 1000
068172″ Female2″ GroovedAirSM 1100

Replacement Parts

Part #DescriptionModel #
 06870Air loss protection valveSM 644
 06874Shuttle valveSM 1053
 06830Electric conversion kit*, standardSM 6830
 06831Air conversion kit*, standardSM 6831
 11200Air switchMK IV or MK V
 11525Poppet assemblyMK IV
 11506Viton Seal replacement kitMK IV
 11507Air switch replacement kitMK IV or MK V
 11508Electric switch for MK IV flowswitch–

1/4″ gauge port.

20 amp normally open electrical switch (not for gasoline use).

Less than 7 P.S.I. pressure drop at 100 G.P.M.

3 P.S.I. cracking pressure at zero flow.

Viton poppet seal.

Scully Signal