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

670 Series Pressure Switches
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654 Series 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

654A19 B Differential Air 36 inHg >17 inHg 20.4 ±1.3 inHg
654-21 N/C Pressure Fuel 20 psig 0.6 ±0.1 psig 9 ±0.1 psig
654-26 B Pressure Air 6 psig 4.0 - 0 inHg
4.0 +0.2 inHg 		N/A
654-27 D Differential Air N/A N/A 3.3 inHg
654-30 B Differential Air 2.9 psig 4.0 ±2 inHg 5.5 ±0.2 inHg
654-33 N/C Pressure Air N/A N/A 6 to 6.5 inHg
654-34 E Differential Air 50 in H2O >1.4 in H2O 2.8 ± 0.4 in H2O
654-35 B Differential Air 2.5 psig N/A 2.77 to 3.57 in H2O = 80± 5
654-36X N/A Vacuum Swttch Air N/A N/A -4.0 +0.25 inHg
-4.0 -0 inHg
654-37 A Differential Air N/A >3 75 inHg 9.0 ± 0.5 in H2O
654-39 N/C Differential Air 50 psig N/A 7 psid
654-41 A Vacuum Switch Air -8 inHg 2 to 1 inHg 1 to 2 inHg
654-43 N/C Differential Air N/A <1.5 in H2O 4.5 ±0.25 in H2O
654-44 D Differential Air 50 in H2O >2.0 in H2O 3.2 ± 0.4 in H2O
654-45 N/C Pressure Gas 30 in H2O N/A 3 ±0.5 in H2O
654A45 B Differential Air 30 in H2O 0.5 to 1.5 in H2O 1.3 to 2.0in H2O = 45 to 55
654A46 N/C Differential Air 30 in H2O 1.0 to 2.8 in H2O 2.8 ±0.25 in H2O = 66 +2.2/66 -3.5
654A47 N/C Differential Air 30 in H2O 1.4 to 3.4 in H2O 3.4 ±0.25 = 72 +2.7/72 -2.5
654A48 B Differential Air 50 in H2O >0.538 psid = >14.8 in H2O = >172 0.588 ±0.02 psid = 16.3 ± 5 in H2O
16.3 ± 0.5 in H2O
654A49 A Differential Air 30 in H2O 0.5 in H2O 1.33 to 4.75in H2O = 45 to 85
654A50 N/C Differential Air N/A >0.2 in H2O 1.0 ±0.2 in H2O
654A72 N/A Differential Air 50 in H2O 4.9 ±0.4 in H2O = 87 ±4 Knots 5.9 ±0.4 in H2O = 95 ±4 Knots
654A73 N/A Differential Air 36 in H2O N/A 0.828 in H2O (35.68 Knots)
654A74 N/C Pressure Air 50 in H2O 1.66 ±0.2 in H2O = 50 ±3 Knots >2.02 in H2O
  Results 26 - 49 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