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  • 4ALF-100

    4ALF-100

    Apollo started production of the 4ALF-100 Series in 2009. Top Entry Double Check Valve Assembly, Bronze Body, Modular Cartridge Checks with replaceable seats & Reversible Silicone Seat Discs, ½” to 2” with Apollo ball valve shutoffs with SS handles + trim

  • 4ALF-100 LBF

    4ALF-100 LBF

    4A-100 started production in 2009. Domestic Stainless Steel Body 2-1/2"-8", FDA Fusion Bonded Epoxy Ductile Iron 10" & 12". Short Inline Configuration, Center Stem Guided TriForce™ Check Valves for Low Pressure Drop. Butterfly, OSY, NRS Shutoff Options. 2-1/2"- 12".

  • 4ANLF-100

    4ANLF-100

    Apollo started production of the 4ANLF Series in 2009. Domestic Stainless Steel Body 2-1/2"-8", FDA Fusion Bonded Epoxy Ductile Iron 10" & 12". Flow Configurations in Vertical Up/Vertical Down, or Vertical Up/Vertical Up. Center Stem Guided TriForce™ Check Valves for Low Pressure Drop. Butterfly, OSY, NRS Shutoff Options. 2-1/2"-12".

  • 4S-103
  • 4SG-100

    4SG-100

    Apollo started production of the 4SG Series Double check assembly. Production began in 1998. The 1/2" assembly utilizes a bronze body. The checks are a modular in-line design. The check modules are not field repairable and must be replaced as a whole check module. The body on 2 1/2"-10" are constructed of ductile iron which is fused epoxy coated. The 2 1/2"-6" checks are a swing style and are modular in construction and made of glass filled Noryl plastic. The check disc is replaceable. The check springs are contained when the cover is removed. The 8"-10" checks are modular bronze. The check springs are contained when the cover is removed.