Instrumentation
	Pressure	Switches
	Explosion-proof Differential Pressure Switch H3				Bourdon Tube Differential Pressure Switch  BB
		Setpoints from 10" w.c. to 200 psid,				Welded stainless steel Bourdon tubes
		Rated 1500 psig, Weatherproof .				reduce chance of leakage, (even in
		Heavy duty, industrial unit has				the event of fire), in Model BB
		patented and unique new design				Differential Pressure Switches. Units
		which provides sensitivity to				are ideal for checking differential
		differential pressures as low as 10				pressure(head) across high pressure
		inches of water. Special over-travel				pumps and filters. Hermetically sealed
		feature prevents overtightening of				mercury wetted contacts help ensure
		range adjust screw.				reliable operations.
	Double Bellows Differential Pressure Switch DP				Differential Pressure Switch        A4
		DP differential pressure switch result				Rugged Series A4 Differential
		in maximum sensitivity,quick response				Pressure Switch offers field
		to changes and good vibration				adjustments and can handle system
		resistance. Choice of brass or 316				pressures up to 6000 psig. Piston
		stainless steel assures broad media				design allows mounting in any
		compatibility. Setpoint adjustment is				orientation. The switch is capable of
		easy thanks to external knobs and				carrying moderate shock and
		large,clear scale reading directly psid.				vibratory loads.
		Standard enclosure is NEMA-1 style.