Series 1620 Single and Dual Pressure Switch

High Reliability, Repetitive Accuracy within ±1%

On the Series 1620 Single and Dual Pressure Switch, our old faithful switch design is still best where highest precision combined with diaphragm sealed leak proof construction and mounting simplicity are required. Model 1626 and 1627 differential pressure switches are identical in design and construction except that Model 1626 has a single electric switch and Model 1627 has dual electric switches. Model 1627 can therefore provide dual control when required. It can be set to open or close two independent electrical circuits, each preset for its own actuation pressure. Both units have diaphragm sealed motion take outs providing maximum protection against leakage.

CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.

Product Applications

Damper positioning
Duct air control

Starting at $468.00

Ordering

Grouped product items
Model	Description	Availability*	Price
1626-1	Single pressure switch, range .15-1.5" w.c., .10 min. deadband, .20 max. deadband, 0.5 adj. diff. between set points.	1-3 days*	$468.00
1626-5	Single pressure switch, range .5-6.0" w.c., .15 min. deadband, .35 max. deadband, 1.2 adj. diff. between set points.	1-3 days*	$468.00
1627-1	Dual pressure switch, range .15-1.5" w.c., .10 min. deadband, .20 max. deadband, 0.5 adj. diff. between set points.	1-3 days*	$530.40

Specifications

Service:: Air and non-combustible, compatible gases.
Wetted Materials:: Consult factory.
Temperature Limits:: -30 to 130°F (-34.4 to 54.4°C).
Pressure Limits:: Max. 50 in. w.c. (12.44 kPa) continuous, 2 psig (13.79 kPa) surge.
Switch Type:: 1626: SPDT; 1627: (2) SPDT.
Repeatability:: ±1%.
Electrical Rating:: 15 A @ 120 to 480 VAC, 60 Hz. Resistive, 1/8 HP @ 125 VAC, 1/4 HP @ 250 VAC, 60 Hz.
Electrical Connections:: 3 screw type, common, normally open and normally closed.
Process Connections:: 1/8" female NPT.
Mounting Orientation:: Diaphragm in vertical position. Consult factory for other position orientations.
Set Point Adjustment:: Screw adjustment.
Weight:: Model 1626: 3 lb 9.8 oz (1.64 kg); Model 1627: 3 lb 11.8 oz (1.69 kg).
Compliance:: CE.

Features

Single or dual action switches support consistent designs with similar models, but with the ability to match specific application needs
Sealed diaphragm provides leak-proof construction for high accuracy and precision control

Options

-MIL Environmental Construction. Can be furnished with a special snap switch sealed against the environment for temperatures down to -65°F., high humidity, exposure to fungus, and/or for military applications. Dead band is slightly greater and some lower set points may not be available. Specify Model 1626 or 1627 - (Range No.) - "MIL" and required set point in ordering.
-WP Weatherproof Housing. 16 ga. steel enclosure for unusually wet or oily conditions. Withstands 200 hour salt spray test. Gasketed cover. Weight: 20 lbs. Switch must be installed at factory. Specify "WP" in addition to switch catalog number.

Support Library

Product Literature

Manuals

Instruction Manual

Catalog Pages

Series 1620 Catalog Page

Approvals

RoHS Letter of Compliance

Drawings

Model Chart

EXAMPLE	1626	1	AT	Series 1626-1-AT Pressure Switch, range 0.15-1.5" w.c., with aluminum tag.
SERIES	1626 1627			Single Electric Switch Dual Electric Switches
RANGE		1 5 10 20		0.15-1.5" w.c. 0.5-6.0" w.c. 2.0-11.0" w.c. 8.0-24.0" w.c.
OPTIONS			AT BGAP LC MIL PRESET ST WP	Aluminum Tag B-Gap Micro Switch Less Conduit MIL Switch Preset Stainless Steel Tag Weatherproof Housing

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Accessories

Model	Description	Availability*	Price
A-489	4" 303 SS straight static pressure tip with flange, 1/4" hose barb.	1-3 days*	$9.50
A-302F-A	303 SS Static pressure tip with mounting flange, for 3/16" I.D. rubber or plastic tubing. 4" insertion depth, includes mounting screws	1-3 days*	$12.40