Series 1630 Large Diaphragm Pressure Switches

Visual Set Point Adjustment in 5 Standard Ranges, 0.05" to 12" w.c. Repetitive Accuracy within ±1%

On the SERIES 1630 our highest precision conventional large diaphragm pressure switch provides maximum dependability. In addition, it incorporates a visible set point indicator for maximum convenience. UL and CSA listed, FM approved for general service. Electrical capability of 15 amps handles most small electrical loads. For use only with air or compatible gases.

CAUTION: FOR USE ONLY WITH AIR OR COMPATIBLE GASES.

Product Applications

  • Damper positioning
  • Duct air control
  • Air conditioning
  • Industrial service

Models & Ordering

Build Your Custom Part. Use our Product Configurator

Model Description Usually Ships Price Order
1638-0
Ships: Same Day
Price: $267.00
Large diaphragm pressure switch, range 0.05-0.25" w.c., approx deadband @ 0.04 min. set point, 0.05 max. set point. Same Day $267.00 Order
1638-1
Ships: Same Day
Price: $267.00
Large diaphragm pressure switch, range 0.20-1.0" w.c., approx deadband @ 0.04 min. set point, 0.06 max. set point. Same Day $267.00 Order
1638-10
Ships: Same Day
Price: $267.00
Large diaphragm pressure switch, range 3.0-12" w.c., approx deadband @ 0.11 min. set point, 0.30 max. set point. Same Day $267.00 Order
1638-2
Ships: Same Day
Price: $267.00
Large diaphragm pressure switch, range 1.0-3.0" w.c., approx deadband @ 0.06 min. set point, 0.08 max. set point. Same Day $267.00 Order
1638-5
Ships: Same Day
Price: $267.00
Large diaphragm pressure switch, range 2.0-6.0" w.c., approx deadband @ 0.07 min. set point, 0.25 max. set point. Same Day $267.00 Order

Can't find what you need? Build Your Custom Part. Use our Product Configurator

Specifications

Service:
Air and non-combustible, compatible gases.
Wetted Materials:
Consult factory.
Temperature Limits:
-30 to 110°F (-34.4 to 43.3°C).
Pressure Limits:
10 psig (68.95 kPa) continuous, 25 psig (172.4 kPa) surge.
Switch Type:
SPDT.
Repeatability:
±1%.
Electrical Rating:
15 A @ 120-480 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 type with enclosed scale.
Weight:
4 lb 14 oz (2.21 kg).
Agency Approvals:
CSA, FM, UL.

Features

  • Visible set point indicator simplifies operation and trouble shooting
  • Large diaphragm provides low range accuracy providing precise control
  • Current loads of up to 15 amps supports most small electrical loads supporting a broader range of HVAC and Process applications without the need for additional relays and components

Options

  • -MIL Environmental Construction. Unlisted Model 1635 can be furnished with a special snap switch sealed against the environment for high humidity, exposure to fungus, and/or for military applications. Similar to Model 1638 except dead band is slightly greater and some lower set points may not be available. Specify Model 1638-(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 Model 1639-(range no.)-WP when ordering.

Accessories

Model Number Description Usually Ships Price Order
4 A-489 4" 303 SS straight static pressure tip with flange. Same Day $6.67 Order
303 SS Static pressure tip with mounting flange, for 3/16 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 Same Day $9.20 Order

Videos

Model Chart

EXAMPLE 1635 0 AT Series 1635-0-AT Large Diaphragm Pressure Switch, range 0.05-0.25" w.c., with aluminum tag.
SERIES 1635
1638
1639
    Large Diaphragm Pressure Switch
Large Diaphragm Pressure Switch with Conduit
Large Diaphragm Pressure Switch without Conduit
RANGE   0
1
2
5
10
  0.05 - 0.25" w.c.
0.20-1.0" w.c.
1.0-3.0" w.c.
2.0-6.0" w.c.
3.0-12.0" w.c.
OPTIONS     AT
B
BGAP
GOLD
HT
LC
MIL
PRESET
SF
ST
WP
Aluminum Tag
Buna-N Elastomers
B-Gap Micro Switch
Gold Contact Switch
High Temperature
Less Conduit
MIL Switch
Preset
Silicone Free (includes Buna-N elastomers)
Stainless Steel Tag
Weatherproof Housing

Product Literature

Manuals

Catalog Pages

Approvals

Drawings

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