PRESSURE SWITCHESLOW DIFFERENTIAL PRESSURE
1950G1640 1800 1950 PG
D AP
PRESSURE SWITCHESSINGLE PRESSURE
SA1100 1000 C ES
1630 1900
ELECTRONIC SINGLE PRESSURE
Series Set Point Range
ServiceWetted Materials
Temperature Limit
Pressure Limit
Power RequirementRepeatabilityAdjustable DeadbandSet Point IndicationEnclosure RatingSwitch TypeMultiple StagesProcess ConnectionAgency Approvals
MDS MDA H3 DPA
A1PS APS MVS A2
MINIATURE SINGLE PRESSURE
MINIATURE DIFFERENTIAL PRESSURE
*Other Options Available Contact Factory
1950P A4
HIGH DIFFERENTIAL PRESSURE
Series Set Point Range
Service
Wetted Materials
Temperature Limit
Pressure LimitPower RequirementRepeatabilityAdjustable DeadbandSet Point IndicationEnclosure RatingSwitch TypeMultiple StagesProcess Connection
Agency Approvals
Any differential pressure switch can be used as a single pressure switch with proper venting.
Kapton®, Viton® , and Teflon® are registered trademarks of E.I. du Pont de Nemours and Company.www.dwyer-inst.com www.dwyer-inst.com
.15 to 24˝ w.c.(.04 to 6 kPa)
Compatible GasesConsult Factory
-30 to 130°F(-34 to 54°C)
50˝ w.c. (12.41 kPa)
None1%NoNo
GP, WP, or EXPTwo SPDT
Yes1/8˝ NPT
.07 to 20˝ w.c.(.017 to 5 kPa)
Compatible GasesConsult Factory
0 to 140°F(-18 to 60°C)
45˝ w.c. (11.2 kPa)
24 VDC, 120 or 240 VACConsult Factory
NoNo
WP and EXPSPDT
No1/8˝ NPT
.01 to 12˝ w.c.(.003 to 3 kPa)
Compatible GasesConsult Factory
-30 to 110°F(-34 to 43°C)
10 psig (69 kPa)
NoneConsult Factory
NoYes
GP, WP, or EXPSPDTYes
1/8˝ NPT
0.07 to 85˝ w.c.(0.017 to 21 kPa)Compatible GasesConsult Factory
-30 to 180°F(-34 to 82°C)
10 psig (69 kPa)
None2%NoNo
GP, WP, or EXPSPDT
No1/8˝ NPT
.03 to 20˝ w.c.(.007 to 5 kPa)
Compatible GasesConsult Factory
-40 to 140°F(-40 to 60°C)
45˝ w.c. (11.2 kPa)
NoneConsult Factory
NoNo
WP and EXPSPDT
No1/8˝ NPT
.05 to 12˝ w.c.(.012 to 3 kPa)
Compatible GasesConsult Factory
-30 to 110°F (-34 to 43°C)
10 psig (69 kPa)
None1%NoYes
GP, WP, or EXPSPDT
No1/8˝ NPT
0.07 to 20˝ w.c.(0.017 to 5 kPa)
Compatible GasesConsult Factory
-30 to 180°F(-34 to 82°C)
45˝ w.c. (11.2 kPa)
None3%NoNo
GP, WP, or EXPSPDT
No1/8˝ NPT
1˝ w.c. to 5 psig(.25 kPa to 3.4 bar)Compatible Gases
Fairprene, Brass, Steel,and Aluminum-10 to 180°F(-23 to 82°C)
Consult Factory
None1%No Yes
GP, WP, or EXPSPDT or DPDT
No1/8˝ and 1/2˝ NPT
.5 to 50˝ w.c.(.12 to 12.5 kPa)
Air or compatible fluids on “high side”Polycarbonate and
Polyurethane40 to 150°F(4 to 66°C)
Up to 15 psig(1 bar)None
Consult FactoryNoNo GP
SPST NONo
Hose Barb for 1/8-3/16 I.D. Tubing
.1 to 100˝ w.c.(0.25 to 249.1 mbar)
Air or compatible fluids on “high side”Polycarbonate and
Polyurethane40 to 150°F (4 to 66°C)
Up to 15 psig(1 bar)None
Consult FactoryNoNoGP
SPST NONo
Smooth Port for 1/8˝ I.D.Tubing
10˝ w.c. to 200 psid(2.5 kPa to 13.8 bar)
Compatible Liquids or GasesAluminum, Brass, or 316 SS
with Nitrile or Viton®
-4 to 220°F (-20 to 104°C)
1500 psig (103 bar)
NoneConsult Factory
NoNo
WP and EXPSPDT or DPDT
No1/8˝ NPT
0 to 80 psid (0 to 5.5 bar)
Compatible Liquids or GasesBrass or 316 SS
-10 to 180°F(-23 to 82°C)
Up to 80 psid (5.5 bar)600 psig (41 bar)
NoneConsult Factory
YesYes
GP, WP, or EXPSPDT or DPDT
Yes1/8˝ NPT
.5 to 50 psid(.03 to 3.5 bar)
Compatible GasesConsult Factory
-40 to 140°F(-40 to 60°C)Up to 90 psig
(6.2 bar)None
Consult FactoryNoNo
WP and EXPSPDT
No1/8˝ NPT
2 to 250 psid(.14 to 17.2 bar)
Compatible GasesAluminum and Steel
-65 to 225°F (-54 to 107°C)
2000 psid (138 bar)6000 psig (413 bar)
NoneConsult Factory
NoNoGP
SPDTNo
1/4˝ NPT
30˝ Hg Vacuum to 8000psig (762 mm Hg
Vacuum to 551 bar)Compatible Liquids
or GasesBrass, 403 SS
or 316 SS
-10 to 180°F(-23 to 82°C)
Up to 8000 psig (551 bar)None1%YesYes
GP, WP, or EXPSPDT or DPDT
Yes1/4˝ NPT
10˝ w.c. Vacuum to 125 psig
(2.5 kPa Vacuum to 8.6 bar)Compatible Liquids
or GasesSteel and Buna-N
or 316 SSand Teflon®
-30 to 150°F (-35 to 66°C)
Up to 160 psig (11 bar)None
Consult FactoryNoYes
GP, WP, or EXPSPDT or DPDT
No1/4˝ NPT
10 to 500 psig(0.7 to 34 bar)
Compatible Liquidsor Gases
Aluminum, Brass, or 316 SS with Buna-N
or Fluorocarbon-30 to 180°F (-35 to 82°C)
1200 psig (82 bar)None
Consult FactoryYesYes
WP and EXPSPDT or DPDT
No1/4˝ or 1/2˝ NPT
5 to 1400 psig(.48 to 96.5 bar)
Compatible Liquids or Gases
Aluminum or 316 SS with Polyamide,
316 SS, or Teflon®
-30 to 170°F (-35 to 77°C)
3000 psig (207 bar)None
Consult FactoryNoYes
WP or EXPSPDT or DPDT
No1/4˝ NPT
30˝ Hg Vacuum to 150 psig (762 mm Hg Vacuum to 10.3 bar)Compatible Liquids
or GasesSteel and Buna-N
-30 to 150°F (-35 to 66°C)
Up to 175 psig (12.1 bar)None
Consult FactoryYesYesGP
SPDTNo
1/4˝ NPT
3 to 3000 psig (.21 to 206 bar)
Compatible Liquids or Gases
17-4 PH SS and 316 SS
-20 to 160°F (-29 to 71°C)
Up to 4500 psig (310 bar)110 VAC0.50%
YesYesWP
SPDTNo
1/4˝ NPT
28˝ Hg Vacuum to 500 psig (711 mm Hg Vacuum to 34.5 bar)Compatible Liquids
or GasesZinc and Buna-N
-31 to 185°F (-35 to 85°C)
600 psig (41 bar)None
Consult FactoryNoYesGP
SPDTNo
1/4˝ NPT
28˝ Hg Vacuum to 500 psig(711 mm Hg Vacuum to
34.5 bar)Compatible Liquids
or Gases17-4 PH SS and
303 SS
-65 to 225°F (-54 to 107°C)
Up to 750 psig (51 bar)None
Consult FactoryNoYesGP
SPDTNo
1/8˝ NPT
3 to 330˝ w.c. Vacuum(8 to 822 mbar Vacuum)
Compatible Liquids or Gases
Polycarbonate and Polyurethane
40 to 150°F(4 to 66°C)
Up to 330˝ w.c. (822 mbar)None20%NoNoGP
SPDTNo
Consult Factory
2 to 150 psig (.14 to 10 bar)
Compatible Liquids or Gases
Kapton® and Brass
-40 to 250°F (-40 to 121°C)
500 psig (34 bar)None5%NoNo
GP or SubmersibleSPST
No1/8˝ NPT
1620 ADPS PDPS0.08 to 16˝ w.c.(20 to 4000 Pa)
Compatible GasesSilicone, PA 6.6 and
Polystyrene-4 to 185°F
(-20 to 85°C)40˝ w.c.(10 kPa)
NoneConsult Factory
NoYesGP
SPDTNo
5/16˝ OD and 1/4˝ ID
0.07 to 1.0˝ w.c.(17.4 to 248.8 Pa)Compatible Gases
Polyphenylene oxidestyrene,fluorosilicone and SS
-40 to 185°F(-40 to 85°C)
1.0 psig(0.069 bar)
None±0.02˝ w.c.
NoNoGP
SPST NO or NCNo
1/4˝ and 3/8˝ Hose Barb® ® ® ® ® ® ® ® ®
CX25 to 175 psig
(1.7 to 3.8 bar)
Compatible Gases
NBR with steel or aluminum
140°F (60°C)
Up to 204 psig (14.1 bar)None
±5 psig (0.3 bar)YesNoGP
Two SPST NCNo
1/4˝ NPT
CXA15 to 150 psig
(1.0 to 10.3 bar)
Compatible Liquids or Gases
Silicone, steel and SS
140°F (60°C)
Up to 204 psig (14.1 bar)None
±5 psig (0.3 bar)YesNoGP
SPST NO or NCNo
1/4˝ NPT
A1F2 to 450 psig
(0.14 to 31.0 bar)
CompatibleLiquids or GasesFluorocarbon and
316 SS
-40 to 175°F (-40 to 80°C)
750 psig (51 bar)None
Consult FactoryNoYes
GP or WPSPDT
No1/4˝ and 1/2˝ NPT
A7
0.25 to 15 psig(0.017 to 1.0 bar)
Compatible Liquids or Gases
Silicone and nylon
14 to 185°F (-10 to 85°C)
50 psig (3.5 bar)None±10%
NoNoGP
SPDT or SPSTNo
1/8˝ NPT, 1/4˝ NPT or4 mm OD
A9
2.9 to 130.5 psig(0.2 to 9.0 bar)
Compatible Liquids or Gases
Copper with silicone orSS
Up to 257°F (125°C)
Up to 145 psig (10.0 bar)None±10%
NoNoGP
SPDTNo
1/8˝ NPT
A60.5 to 150 psig
(0.03 to 10.3 bar)
Compatible Liquids or Gases
Polyimide with Brass or304 SS
-40 to 248°F (-40 to 120°C)
Up to 500 psig (34 bar)None±10%
NoNo
GP or WPSPDT
No1/4˝ NPT
® ® ® ®
PressureSwitch SG:dom/intl pressure switch 2/14/11 9:59 AM Page 1
Address:Dwyer Instruments, Inc.102 Indiana Highway 212P.O. Box 373Michigan City, IN 46361 U.S.A.
e-mail:General: [email protected]: [email protected]: [email protected]: [email protected]
Telephone:(800) 872-9141(219) 879-8000
website:www.dwyer-inst.comwww.love-controls.comwww.mercoid.comwww.proximitycontrols.com
Fax:(219) 872-9057
DWYER INSTRUMENTS, INC.P.O. Box 373Michigan City, IN 46361-9986
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DWYER INSTRUMENTS, INC.P.O. Box 373Michigan City, IN 46361Phone: 219/879-8000Fax: 219/872-9057
Internet: http://www.dwyer-inst.comhttp://www.love-controls.com
e-mail: [email protected]
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Houston Office:Phone: 281/446-1146Fax: 281/446-0696
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Branch Office/Stocking Warehouse LocationCorporate Headquarters
A word on our Pressure Switch Brochure...
Pressure switches are one of Dwyer Instrument’s broadestproduct lines. Dwyer, along with divisions Mercoid andW.E. Anderson, offers products for just about any pres-sure application that you may have. This brochureoffers a quick overview of our products to assist youin finding the right pressure switch for your needs.
Dwyer can provide pressure sensing solutions fromhigh volume OEM to heavy industrial use. Throughinnovation we continually increase the productoffering with new pressure sensing technologiesand product improvements. Dwyer’s product lineincludes a variety of pressure switches that canhandle pressures from full vacuum to 8000 psig(551 bar), and we can provide solutions for gases,liquids, and combustible media.
We have always felt that the best does not have tocost you the most, and encourage you, the customer,
to check out our value and what we believe to be themost competitively priced products on the market.
Sincerely, The Dwyer Instruments Team
©Copyright 2009 Dwyer Instruments, Inc. 4/09 Printed in U.S.A.
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PressureSwitch SG:dom/intl pressure switch 2/14/11 10:01 AM Page 2