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Dwyer Instruments
DA-31-153-9 DWYER-INSTR DWYER INSTRUMENTS

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Description: Dwyer® Pressure Switch, Series: DA, 10 to 300 psig Differential Pressure Range, 1/4 in NPT Connection, 180 deg F, Vertical Mounting, 5-3/4 in Dia Dimensions

Manufacturer PN: DA-31-153-9

Forberg Smith PN: 3423519

Invoice Description:

DA-31-153-9 DWYER-INSTR DWYER INSTRUMENTS

 
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Dwyer® DA-31-153-9 DA Pressure Switch, 10 to 300 psig Differential

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Note: Lead times are estimates only

 
 

Description

Customers tell us that the series DA/DS are the best pressure switches made. The Mercoid D series is one of the world's broadest lines of pressure switches. The D series has extremely high sensitivity and great repeatability. The DA models are equipped with two external adjustments, one for setting high pressure operating point, the other for setting low pressure operating point. Dead band, the difference between high and low set points, is adjustable over the full-scale. The DS models are equipped with a single external adjustment for setting operating point only. For mercury-free switches, choose between the snap action switch or hermetically sealed snap action switch.
Dwyer® Pressure Switch, Series: DA, 10 to 300 psig Differential Pressure Range, 1/4 in NPT Connection, 180 deg F, Vertical Mounting, 5-3/4 in Dia Dimensions

Specifications

 Application Compressors, Mechanical HVAC or Process Equipment and Pump Control
 Brand Name Dwyer
 Connection Size 1/4 in NPT
 Differential Pressure Range 10 to 300 psig
 Dimensions 5-3/4 in Dia
 Manufacturer Part Number DA-31-153-9
 Mounting Type Vertical
 PART NUMBER KEYWORDS DA-31-153-9 ; DA311539
 Series DA
 Standards/Approvals UL Listed|CE Certified|CSA Certified|FM Approved
 Temperature Rating 180 deg F

Features

▪ Visible calibrated dial provides an easy and fast check without having to open device causing dangerous conditions to operators
▪ ON/OFF indication (except hermetically sealed snap switch models) gives operator clear indication of state of switched equipment that could be located in another location
▪ Adjustable or fixed dead band supports control applications by reducing equipment wearout by unnecessary recycling
▪ External switch set point adjustments reduces set-up time
▪ Pressure ranges of full vacuum to 8000 psig gives application designers the ability to specify standard equipment, simplifying install and training and reducing servicing costs
▪ General purpose, weatherproof or explosion proof enclosures for a variety of indoor or outdoor environments meeting the needs of multiple applications and uses
▪ 1 or 2-stage operation

Resources

 Full Engineering Drawing 
 
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