Series	Name	Service	Inlet Pressure Range	Outlet Pressure Range	Materials	Sizes	Cv
	CPR-1	Compact Pressure Regulator	Gas or Liquid	0-6,000 psig	0-750 psig	316L SS	1/8"	0.025-0.06
	PR-1	Adjustable Pressure Control Regulator	Gas or Liquid	0-6,000 psig	0-750 psig	316L SS, Monel, Hastelloy C	1/8", 1/4", 3/8"	0.02-0.50
	PR-2	Economy Pressure Reducing Regulator	Gas	0-3,600 psig	0-750 psig	Brass	1/8", 1/4", 3/8"	0.025-0.50
	PR-5	High Flow Pressure Reducing Regulator	Gas or Liquid	0-300 psig	0-250 psig	316L SS, Brass, Monel, Hastelloy C	1/8", 1/4", 3/8"	0.20
	PR-7	Ultra Flow Adjustable Pressure Control Regulator	Gas	0-3,600 psig	0-500 psig	316L SS, Brass, Monel, Hastelloy C	1/4", 3/8", 1/2"	1.1
	PR-7LF	High Sensitivity Pressure Reducing Regulator	Gas	0-3,600 psig	0-250 psig	316L SS, Brass, Monel, Hastelloy C	1/4", 3/8", 1/2"	0.025-0.50
	PR-7ULF	Pressure Reducing Regulator	Gas	0-250 psig	0-50 psig	316L SS, Brass	1/8", 1/4"	0.004
	PR-9	High Temperature Pressure Regulator	Gas, Liquid	0-3,000 psig	0-250 psig	316L SS, 347SS	1/4", 3/8"	0.06-0.20
	PR-11	Ultra Sensitive Regulator	Gas, Liquid	0-3,600 psig	0-500 psig	Aluminum	1/8", 1/4"	0.025-0.20
	SPR	Subatmospheric Pressure Regulator	Gas	15-160 psia	1-30 psia	316L SS, Brass, Monel, Hastelloy C	1/4", 3/8"	0.025-0.20
	CPR-5	Compact Pressure Regulator	Gas, Liquid	0-300 psig	0-250 psig	316L SS	1/8"	0.20
	LG-1	Ultra Miniature Pressure Regulator	Gas, Liquid	0-6,000 psig	0-500 psig	316L SS, Brass, Aluminum, Monel	1/16", 1/8"	0.025-0.06

 NOTES:

The CPR-1 Series is a compact pressure regulator with most of the same internal design features employed in our time proven PR-1 series. This regulator was designed to provide optimum performance as a "lecture bottle regulator" for pressure control in any application where a small size and low internal volume are required. The low internal volume allows more rapid purging in analytical instrumentation and semiconductor doping gas applications.

The PR-1 Series is a versatile specialty pressure reducing control regulator designed to fulfill a wide range of needs in instrumentation sample systems and other applications, such as semiconductor processing gases. The many features of the PR-1 make it ideal for a wide range of applications controlling pressures at low to moderate flows in gas or liquid service. 316L material is used to facilitate welded connections. Stainless Steel caps and adjusting screws prevent atmospheric corrosion and maintain appearance. Enhanced internal body surface finish or better than 25 Ra plus electropolishing allows easier cleaning and potentially less particle contamination in the flow stream.

Five different seat materials, three alternate orifice sizes and seven pressure control ranges with stainless steel diaphragms offer the user a wide spectrum of capabilities for pressure control with inlet pressures up to 6000 psig and standard operating temperatures up to 500°F (260°C).

The PR-2 Series are compact brass body regulators designed for maximum flexibility in many classes of instrumentation service. Specifically designed for gas applications, this regulator is capable of accepting high pressures directly from cylinders and other high pressure, non-corrosive systems. It is ideally suited for carrier gas pressure regulation, yet it is economical enough to use in low-pressure air systems such as instrument cabinet air purge service.

The PR-5 Series pressure regulator is designed for service at high flows with good sensitivity and regulation. While the design was originated for gas systems, this regulator is perfectly suitable for liquid systems that are compatible with the materials of construction. Also of interest is the fact that while being able to perform with moderately high flows, this regulator also provides very good performance in flow ranges of only a few liters per minute.

This series is a variation of the time proven PR-1 Series, which has been used for many applications in systems requiring stainless steel construction. The exact package size of the PR-1 has been retained making it convenient for the user to interchange these units if better control at high flow rates is required.

The PR-7 Series has been designed for those applications using high gas flow rates while still requiring a compact package. In addition, this unit will handle Hydrogen flows up to 1000 liters per minute with none of the resonance problems typical with many regulators attempting such an application.

While designed for gas flow applications with low inlet pressures and low differential pressures, this regulator has been constructed to withstand inlet pressures up to 3600 psig. With capability of holding outlet pressures closely with large changes of flow requirements, this regulator is very suitable as a primary pressure supply to other pressure regulators located downstream.

The PR-7LF Series pressure reducing regulator is designed to furnish precise low outlet pressure control to analytical instrumentation. With the combination of the large diaphragm sensing area of the PR-7 series regulator and the low flow seat assembly of the PR-1 series pressure regulator, pressure control down to 10 inches of water is easily obtainable.

The PR-7LF Series of regulators are available in a choice of Stainless Steel or Brass construction, with special alloys available upon request.

The PR-7ULF Series pressure reducing regulator is designed to furnish ultra-precise low outlet pressure control to analytical instrumentation. With the combination of the large diaphragm sensing area of the PR-7 series regulator and a super-low flow valve seat assembly, pressure control down to 1 inch of water at 12cc of flow is easily obtainable.

The PR-9 Series high temperature pressure regulator is designed for the pressure control of gases and liquids up to 1000°F. All metal components in and out of the flow stream provide the user with extended reliability in rigorous high temperature ambient and process applications. This regulator can also be used in applications where no elastomers are allowed in the flow stream. The PR-9 is equipped with a metal-to-metal seat and will not provide bubble tight shutoff. If shutoff is required, a high temperature shutoff valve must be placed upstream of this regulator.

The PR-11 Series precision regulator has been designed to allow the user complete flexibility in application. The instrument design engineer can now choose the optimum operating parameters he needs for a particular flow system.

Flow and pressure regulation can now be easily and economically accomplished in laboratory and process chromatographs, air pollution analyzers and other general process and laboratory instruments. The low internal volume and no trapped areas mean efficient operation and cleanliness in instrumentation with high sensitivity detectors. The standard stainless diaphragm prevents permeability of undesired contaminants into the flow stream.

This regulator offers greater pressure and flow stability for critical applications such as chemiluminescent- type analyzers and is considered the ultimate in maximum stability with ambient temperature change. The PR-11 Series has truly been designed by experienced instrumentation engineers for use in that industry.

The SPR Series subatmospheric pressure regulator is designed for the introduction of a low vapor pressure reactive or purge gas into a subatmospheric process. The large diameter diaphragm provides optimum sensitivity for subatmospheric or positive pressure control.

Standard features allow service in many varied applications including corrosive fluids and, with the optional features available, the user can tailor this regulator to applications ranging from semiconductor processing to analytical instrumentation.

The CPR-5 Series pressure control regulator is designed for service at high flows with good sensitivity and regulation utilizing a small footprint. While the design was originated for gas systems, this regulator is perfectly suitable for liquid systems that are compatible with the materials of construction. Also of interest is the fact that while being able to perform with moderately high flows, this regulator also provides very good performance in flow ranges of only a few liters per minute.

This series is a variation of the time proven CPR-1 Series, which has been used for many applications in systems requiring stainless steel construction. The exact package size of the CPR-1 has been retained, making it convenient for the user to interchange these units if better control at higher flows is required.

The LG-1 Series is an ultra-miniature pressure regulator that employs many of the same features found in the time-tested design of the CPR-1 & PR-1 series regulators. Designed for surface, panel or manifold mounting, the LG-1 offers the utmost in versatility to the systems designer. It's low internal volume of less than 2.7cc makes the LG-1 the perfect choice for systems that require rapid purge cycles. Standard features permit using this regulator in a wide variety of services, including corrosive fluids. The LG-1 can be tailored to virtually any application by utilizing the optional features. All of this is attainable while achieving as low as 0.2% accuracy during supply pressure fluctuations. This regulator is designed to allow the construction of compact and sophisticated analytical instrumentation where the optimum in pressure control is required and space is at a premium.

The complete Single Stage Regulators catalog is available for download (38 pgs./1876KB).