Catalogue - Pressure Switch - GEMS SENSORS & CONTROLS - (Version JPG)

INTRODUCTION


Pressure Range		Proof Pressure	Switch	Notes	Series	Page
Subminiature Pressure Switches	0.75 to 15 psi (52 to 1034 mbar)	150 psi (10 bar)	SPST, SPDT	—	PS11	I-3
	5 to 150 psi (0.35 to 10 bar)	500 psi (35 bar)	SPST	Kapton® Diaphragm	PS31	I-5
	5 to 100 psi (0.35 to 7 bar)	500 psi (35 bar)	SPST	Elastomer Diaphragm	PS32	I-7
	50 to 300 psi (3.45 to 20 bar)	500 psi (35 bar)	SPST	Kapton® Diaphragm	PS51	I-5
	50 to 300 psi (3.45 to 20 bar)	500 psi (35 bar)	SPST	Elastomer Diaphragm	PS52	I-7
	15 to 3000 psi (1.03 to 207 bar)	6000 psi (414 bar)	SPST	—	PS61 PS62	I-13
	5 to 6000 psi (0.35 to 414 bar)	7500 psi (517 bar)	SPST, SPDT, DPST, DPDT	—	PS75	I-19
Miniature Pressure Switches	3.5 to 100 psi (0.24 to 7 bar)	350 psi (24 bar)	SPST, SPDT	—	PS41	I-9
	10 to 5000 psi (0.7 to 344 bar)	6000 psi (414 bar)	SPST, SPDT	—	PS71	I-15
	10 to 750 psi (0.7 to 52 bar)	3000 psi (207 bar)	SPST, SPDT	—	PS72	I-17
	15 to 1750 psi (1 to 121 bar)	4500 psi (517 bar)	SPST, DPDT	—	PS76	I-21
Vacuum Switches	1.5" to 15" Hg (51 to 508 mbar)	150 psi (10 bar)	SPST, SPDT	—	PS81	I-23
Vacuum Switches	5" to 28" Hg (169 to 948 mbar)	350 psi (24 bar)	SPST, SPDT	—	PS82	I-25
Solid-State Switches	0 to 6000psi (0 to 400 bar)	See Specs	SPST, Relay or Transistor	Solid-State	PS98	I-27

Plastic Diaphragms

Option K or Standard Teflon® Coated Kapton® (Polyimide) Diaphragm

Teflon® is compatible with almost every liquid and gaseous media. Kapton® has very stable physical properties over a wide temperature range (-100°F to +400°F). This results in pressure switches that exhibit very little set point shift due to temperature extremes. Kapton^®possesses exceptional fatigue strength but is very stiff which

Elastomer Diaphragms

Elastomers offer incredible sensitivity coupled with extremely long life. This results in stable set points over the life of the pressure switch as well as tight deadbands. Their biggest weakness is the increase in modulus (stiffening) that occurs at lower temperatures. This results in pressure switch set points to shift higher and deadbands to increase with decreasing temperature. They also exhibit more hysteresis than Kapton® diaphragms.

Standard: Nitrile (Buna-N). Typically specified on water and petroleum based hydraulic oils. Temperature

range: 32°F to 250°F (0°C to 121°C)

Option V: Viton® (Fluoroelastomer) Diaphragm. Typically used with alcohols, diesters, solvents, acids and synthetic oils. Also used for high vacuum service.Temperature

range: 32°F to 400°F (0°C to 204°C)

Option E: EPDM (Ethylene Propylene) Diaphragm. Typically used with phosphate ester based hydraulic fluids, brake fluids, ketones, steam and hot water. Temperature range:-65°F to +212°F (-54°C to +100°C)

Option N: Neoprene

(Chloroprene) Diaphragm. Typically specified for refrigerant systems. Temperature range: -65°Fto +275°F (-54°C to +135°C)

results in wider but more stable deadbands than most elastomers.

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Pressure Switch - GEMS SENSORS & CONTROLS - #12

Wireless level sensor, Level sensor, Transmitter, Diaphragm pressure switch, Pneumatic solenoid valve