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APS Air Pilot Switch Valves

Product Features and Specifications

  • General Product Information
    • schydraulic-apsairpilotswitch
      COMPATIBLE WITH MOST FLUIDS
      FACTORY SET PER CUSTOMER REQUEST
      NORMALLY OPENED OR NORMALLY CLOSED POSITIONS AVAILABLE
      MODELS OFFERING ADJUSTABLE SENSING PRESSURES FROM 15-PSI TO 20,000-PSI

      The APS Air Pilot Switch consists of a high pressure sensor operator connected directly to a three-way air valve that can be operated either normally open (passing air) or closed (not passing air). The spring in the sensor applies a counteracting force to the switch and is adjustable within the spring range.

      All air pilot switches are subject to deadband conditions, which should be considered when using the valve. A deadband is described as the difference in pressure between a set point of sensing pressure and a pressure at which the air valve returns to the original position. Deadband conditions vary by pressure range in percentage with higher pressure conditions reducing the deadband range.

      SC will preset the APS to a specified pressure if requested. Indicate if the switch is to activate under increasing or decreasing pressure condition. Consult SC for more information if needed.

      Air pilot switch valves are most commonly used to control automatic "turn on" and "shut off" of a gas booster or pump system and are used in conjunction with a remote pilot on the booster or pump. Other typical applications are for valve actuation, pneumatic alarm systems, or to sequence another system operation after a certain pressure is sensed.

  • Applications
    • Valve actuation
      Pneumatic alarm systems
      Remotely control the start/stop of pneumatic driven pumps, boosters and systems
  • Dimensions
    • schydraulic-apsairpilotswitchdims schydraulic-apsairpilotswitchdimsa schydraulic-apsairpilotswitchdimsb
      AIR PILOT SWITCH VALVE SELECTION
      Model No.* Type System
      Order
      Code
      Sensing Port Adjustable Range (psig)
      Pressure setting at factory.
      Specify increasing/decreasing
      Air Valves
      150 psig Maximum
      Operating Pressure
      Air Valve
      Configure
      Option
      Size Max. Pressure
      Normally Closed Normally Open Port Size Cv Factor
      APS-100-01 A 1 1/4" NPT 15,000 psi
      O2 = 5,000
      3,500-10,000 2,400-10,000 1/8" npt .20
      UP TO
      11 SCFM
      N.C. &
      N.O.
      APS-070-02 2 1,400-7,000 940-6,400
      APS-051-03 3 800-5,100 700-4,600
      APS-013-04 4 340-1,300 260-1,200
      APS-148-05 5 3,500-14,800 2,500-12,000
      APS-100-06 B 6 1/4" NPT 15,000 psi
      O2 = 5,000
      3,500-10,000   1/8" npt .13
      UP TO
      7 SCFM
      N.C.
      APS-070-07 7 1,360-7,000
      APS-050-08 8 680-5,000
      APS-012-09 9 230-1,240
      APS-005-10 A 10 1/4" NPT 3,000 psi 170-550 125-510 1/8" npt .20
      UP TO
      11 SCFM
      N.O. &
      N.C.
      APS-002-11 11 70-210 50-190
      APS-001-12 12 50-130 40-130
      APS-000-13 13 25-50 20-46
      APS-005-14 B 14 1/4" NPT 145-520   1/8" npt .13
      UP TO
      7 SCFM
      N.C.
      APS-002-15 15 55-210
      APS-001-16 16 30-135
      APS-000-17 17 15-45
      APS-200-18 A 18 HF4 20,000 psi 3,000-20,000 3,000-20,000 1/8" npt .20
      UP TO
      11 SCFM
      N.O. &
      N.C.
  • Ordering
    • schydraulic-valveordering
      TABLE 1 Valve Series
      APS Air Pilot Switch Valve
      TABLE 2 Max Operating Pressure Examples
      000 Less than 100 PSI
      001 100 PSI
      010 1,000 PSI
      011 1,100 PSI
      100 10,000 PSI
      110 11,000 PSI
      TABLE 3 Seal Compound (1)
      N Buna-N
      V Viton
      E EPR
      T PTFE
      TABLE 4 Pressure Port Size (1)
      025 1/4" NPT
      037 3/8" NPT
      050 1/2" NPT
      100 1" NPT
      HF4 High Pressure for 60 KSI
      HF9 High Pressure for 40 KSI
      Notes: (1) Not all options are available on all valves