Value Engineered Products - 654 Series Pressure Switches

Value Engineered Products is a Widely Recognized Manufacturer of Pressure Switches

Value Engineered Products is a Widely Recognized Manufacturer of Pressure Switches

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Pressure Switches

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654 Series Pressure Switches
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654

larger image 		These 2 5/8 in or 3 1/2 in diameter pressure switches are primarily used to measure very low airspeeds and cooling duct pressures. They have been used on fuel systems as well. These units can be used as vacuum, pressure or differential switches. The differential setting range for 654 series is from 1.5 in water column to 6 PSID and 0.5 in water column to 3 PSIG for 656 series. They come in a variety of pressure ports with or without electrical connectors. A popular use today for these units is in the prevention of premature retraction of the landing gear. These units are set at an airspeed which guarantees flight and only when that speed is reached can the landing gear be retracted.



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Item #

Revision

Type

Fluid

Operating Pressure

Deactuation - Dec. Pressure

Actuation - Inc. Pressure

654-1 F Vacuum Switch Air -4 in H2O -3.2 to 3.9 in H2O -3.2 to 3.9 in H2O
654-10 E Differential Air -30 inHg to +1 psig 9.4 to 11.0 in H2O <12.0 in H2O
654-20 C Differential Air 10 in H2O Burst 120 1.5 to 25 in H2O 2.75 ±0.25 in H2O
654-22 E Differential Air 50 in H2O Burst 120 >1.4 in H2O 2.8 ±0.4 in H2O
654-3 D Differential Air -30 in H2O to +40 psig 3 to 5 inHg 4 to 5 inHg
654-5 N Differential Air -30 inHg 12.5 to 13.9 in H2O <15.4 in H2O
654-7 L Differential Air 5 in H2O 1.0 to 2.0 in H2O 1.5 to 2.5 in H2O
654-9 M Pressure Air 10 in H2O 2 to 5 in H2O 4 to 5 in H2O
654A18 A Differential Air 10 psi 11.1 to 12.1 in H2O <13.5 in H2O
654A5 A Differential Air -130 inHg to +10 psig 12.5 to 13.9 in H2O <15.4 in H2O
654A53 A Differential Air 50 in H2O >2.0 in H2O 3.2 ±0.4 in H2O = 70 ±4 Knots
654A58 B Differential Air 70 in H2O ≥18.01 in H2O ≤ 20.30 in H2O
654A59 D Differential Air 70 in H2O ≥20.29 in H2O ≤22.73 in H2O
654A60 B Differential Air 70 in H2O ≥22.73 in H2O ≤25.31 in H2O
654-2 B Pressure Air -30 inHg to +40 psig >2.8 psig 3 ±0.1 psig
654-4 B Differential Air -30 inHg to +40 psig >2.8 psig 21.75 in H2O
24.25 in H2O
654A5.5 B Differential Air ≤16.7 in H2O 13 7±1 in H2O <15.2 in H2O
654-6 C Differential Air -30 inHg to +40 psig 85mb = 2.5 inHg 95 mb = 2.8 inHg ±6 8 mb = 0.2 in
654PM71 N/C Differential Air 70 in H2O 14.05 ±3 in H2O (146.08 Knots) 15.98 ±0.3 in H2O 155.85 Knots
654-9.1 N/C Differential Air 30 in H2O 2 to 5 in H2O 5 ±0.5 in H2O
654-9.2 N/C Differential Air 30 in H2O 1.75 to 4.5 in H2O 4.5 ± 0.25 in H2O = 83 ± 2.17
654-14 N/C Differential Air
Fuel 		30 psig >0.3 psid <0.5 psid
654-17 N/C Pressure Air 10 psig 5 psig Adjustable
654-18 N/C Vacuum Switch Air +10 to -3 psig -3 psig Adjustable
654-19 A Vacuum Switch Air N/A 3.5 inHg -1.0 - 0.25 inHg
-1.0 + 0.50 inHg
  Results 1 - 25 of 49 1 2 
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Value Engineered Products  |  3541 Old Conejo Rd., Ste# 117  |  Newbury Park, CA 91320  |  Ph: 805.499.1959  |  Fax: 805.499.1955  |  Email Us: customerservice@veproducts.com  |  Privacy Policy