Catalogue - Flow Switch - AP Tech Advanced Pressure Technology

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Back-pressure regulator, Valve, Vacuum generator, Ejector, Pressure regulator

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flDVmOED PRESSURE TECHNOIDGY

Series AP 74

VERTICAL FLOW SWITCH Ultraclean safety device for gases

Operating Parameters

► Selection and sizing application program online at www.aptech-online.com

► Flow thru design free of deadlegs or unswept zones

SS 316L VAR secondary remelt material

► 15 or 10 pin. Ra max electropolished finish

► Vacuum to 3,500 psig (241 bar)

► Particle free operation

Six flow reference trip points: 2, 5, 10, 25, 50 & 100 slpm at 100 psig of N2

► DI cleaned and baked dry

► Manufactured to meet UHP requirements

Materials


	Source pressure	vacuum to 3,500 psig (241 bar)
	Flow trip reference points	2, 5, 10, 25, 50 & 100 slpm N2 at 100 psig
	Accuracy	± 10% of trip point or 1/2 slpm, whichever
		is greater
	Installation orientation	Vertical within 8° and inlet port at the bottom
	Pressure drop at trip point	1/2 psi (0.034 bar) differential
	Proof pressure	5,000 psig (345 bar)
	Burst pressure	10,000 psig (690 bar)
	Other Parameters
	Inlet and outlet connectors	1/4 in. face seal or tube weld
	Internal volume	0.12 ina (1.9 cm3)
	Operating temperature*	-10° to +175° F (-23° to +80°C)
	Surface finish	15 uin. (0.4um) Ra max standard;
		10 uin. (0.25um) Ra max optional
	Inboard leakage	2 x 10^-10 sccs
	Outboard leakage	2 x 10^-10sccs at 500 psig

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^: Trip point varies slightly with temperature change, ±2% over the specified operating range.

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	Wetted Parts
	Body	316L SS secondary remelt
	Float	316L SS
	Finish	electropolished and passivated
	Reed Switch
	Type	SPDT, 3 wire / 2 position
	Power	30 VDC / 3 W max
	Switching current	0.2 A max
	Carrying current	0.5 A max
	Initial contact resistance	0.1 Ohm max
	Cable
	Wire guage	Stranded #24 awg, PVC jacket
	Cable length	10 ft (3 meters)
	Lead color	Blue: common
		Brown: normally closed
		Black: normally open

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All specifications subject to change without notice.

687 Technology Way • Napa, CA 94558 • (707) 259-0102 • Fax (707) 259-0117

www.aptech-online.com