Ultra Low Pressure Regulator

Ultra Low Pressure Regulator that controls down to 0.3 in H₂0 (0.02 psig / 1 millibar(g)). Designed for static and very low flow applications, the patent pending LPR2 design extends the control range well below other commercially available regulators.

Bleed Options:

Part #	Option:	Gas consumption (@ 5 in H₂0)	Typical applications
LPR2-NB	no bleed (standard)	<30 ml/min	Bottled gases (slow pressure reduction)
LPR2-B	Bleed orifice	Approximately 250 ml/min	Instrument air (rapid pressure reduction; maximum stability)

Outlet Ranges:

inH20	psig	mbar(g)
0.3 – 7	0.01 – 0.25	0.75 – 17
1 – 10	0.04 – 0.36	2.5 – 25
1 – 28	0.04 to 1	2.5 – 70

Specifications:

Supply Pressure:	5 – 30 psig [0.34 – 2.0 bar(g)] (stable, regulated)
Ports:	1/4″ NPT inlet/outlet
Fluids:	Air and inert gases
Major Materials:	Cast zinc, Polyethylene, Rubber

Low Flow Test Results:

Sensitivity	+/- 0.01 in H₂0 (0.0004 psig) [0.025 mbar(g)]
7 Day Stability	+/- 0.06 in H₂0 (0.002 psig) [0.13 mbar(g)
Max Air Flow:	Approx 3 lpm (6 SCFH) at 30 psig supply pressure and 5 inH₂0 [12,5mbar] setpoint – see graph below
Gas Consumption:	see bleed options above
Relieving Sensitivity:	~ 8 inH₂0 [20 mbar(g)] @ 1 SCFH [472 ml/min] at setpoint of 2 inH₂0 [5 mbar(g)]

Description

The LPR2 is now available with a bleed orifice option, which provides for more stability and responsiveness when lowering the setpoint pressure. The standard (very low bleed) option is still recommended for most bottled gas applications to minimize consumption. Contact

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