Proportion-Air, Inc.
McCordsville, IN 46055
Jun 25, 2004 Offering reverse flow rates in excess of 25 scfm @ 100 psi, the QB3 electronic pressure regulator makes backpressure and high relief applications possible without use of a quick exhaust valve. It uses solid-state pressure sensor to monitor pressure at work port and electronically adjusts the integral regulator to desired pressure by filling or exhausting air from system. Product can be calibrated to electronically control pressure and regulate vacuum or used as programmable pressure relief valve.

Beswick Engineering Co., Inc.
Greenland, NH 03840
Jun 22, 2004 Able to control outlet pressures from 0–20 psig, PRD2-1N1 dual-stage pressure regulator measures 1 1/32 in. wide x 1 in. high. It weighs 50 g in brass and stainless steel and 23 g in aluminum. Max rated inlet supply pressure is 500 psig, and inlet and outlet ports are tapped M3. First stage is factory-set, while second stage regulates to desired output. Package allows in-line mounting without requiring panel mount.

Swagelok Company
Solon, OH 44139-3492
Jun 22, 2004 Pressure-Reducing and Back-Pressure Regulators are offered in piston and diaphragm types, all featuring captured inlet gauze-type filter and fine pitch stem threads. Design of piston-type units mechanically restricts piston when regulator is exposed to excess pressure. Diaphragm-type regulators feature alloy X-750 diaphragm and leak-tight, metal-to-metal diaphragm seal. Vaporizing Pressure Regulators vaporize liquid samples or preheat gas samples.

Spence Engineering Co., Inc.
Walden, NY 12586-0230
Jun 16, 2004 Rated to 300 psig at 420°F, direct-acting Type D50 Regulator is available in ½â€“2 in. in cast iron, ½â€“¾ in. in bronze, and ½â€“1 in. in stainless steel. Spherical seating surface on floating stainless steel disc provides tight shutoff. Teflon® disc is available for liquid and gas dead-end service. Suited for steam irons, autoclaves, single radiators, steam tables, and vulcanizers, regulator includes 5 spring ranges and integral stainless steel strainer.

Kates, W.A., Co., A Taube Co.
Clawson, MI 48017
May 11, 2004 Model DQ Valve combines matched set of characterized orifices with internal differential pressure regulating valve. By controlling pressure drop across orifices, flow rate remains constant. Since control portion is immersed in media, response time to pressure variations is immediate and hunting or oscillation is eliminated. Flow setpoint is adjusted through electronic 24 Vdc binary input. Up to 256 discreet settings are possible using 8-bit input.

American Meter Co. - Industrial Sales Div.
Horsham, PA 19044
May 11, 2004 With max inlet pressure of 150 psi, Series 1800 models offer outlet pressures from 3.5 in. wc to 5 psi and can be ordered as Full Relief, Partial Relief, or No Relief Regulators. Non-relieving Series 2000 models allow max inlet pressure of 150 psi and outlet pressure range of 0.5–15 psi. Complete pressure control and automatic shutoff packages are available for protection against extreme variations in inlet or outlet gas pressure.

Wanner Engineering, Inc.
Minneapolis, MN 55403
May 04, 2004 Series C46 valve prevents excess system pressure by bypassing total system fluid flow. Valve consists of tapered plunger and valve seat, has no external springs or moving parts, is fully adjustable, and can be serviced in place without removing fittings or plumbing. Available with SS or brass body, valve can handle flow up to 10 gpm and pressure up to 1,500 psi.

Spence Engineering Co., Inc.
Walden, NY 12586-0230
Apr 14, 2004 Electronically controlled Type ED208D consists of balanced Type E pressure reducing valve, Type D208 Electric Actuator Pilot with Electronic Time Controller, and temperature or pressure pilot. Suited for building heating systems and district steam systems, unit provides slow controlled opening/closing and pressure or temperature regulation. It can be used with time-proportional controller to shut off steam when not required and control shutoff at central location.

Blacoh Fluid Control, Inc.
Riverside, CA 92507
Mar 19, 2004 Designed for inlet side of all pumps, J Model inlet stabilizer ensures adequate flow into the pump and extends service life of all inlet system components. Control unit enables positive pressure charge or vacuum to be set in stabilizer. This compensates for any pump inlet system, whether pump is operating under suction lift or positive inlet conditions.

Airgas
Radnor, PA 19087
Mar 15, 2004 Smart Indicating Regulator(TM) Series features purifier built onto output that prevents contamination of gas stream and serves as early warning of impurities. If gas contains contaminants, or if contaminants enter gas stream during cylinder change out, purifier media begins to turn color. When all media changes color, purifier is depleted and cartridge should be changed. Units include 2-stage pressure control, diaphragm packless valve, and 4 outlet pressure range.

Leslie Controls, Inc.
Tampa, FL 33637
Feb 11, 2004 Able to handle fluctuating demands that require low turndown on some days and high flow on others, G Series Regulators provide 95% accuracy for minimal droop and have few moving parts. They are available air loaded in cast iron, bronze, carbon steel, and stainless steel in sizes ½â€“4 in. Integral pilot or temperature regulator versions are available in cast iron. All versions offer 100:1 rangeability and are suited for institutional steam systems.

Spence Engineering Co., Inc.
Walden, NY 12586-0230
Jan 21, 2004 Figure 50 Series bronze and aluminum body safety relief valves provide overpressure protection of pneumatic conveyor systems, trailers, and storage vessels containing powdered solids that are loaded or unloaded by compressed air. Available in 2 in. female NPT screwed connection sizes with set pressures to 30 psig at 225°F, valves feature tamper-proof spring setting, weather-proofed construction, and diaphragm seal with multiple vent design.

Emerson Process Management, Intellution Division
St. Louis, MO 63136 8506
Dec 03, 2003 Fisher® 67CFSR Airset offers setpoint capability of 0–150 psig and provides constantly controlled pressures to pneumatic and electro-pneumatic controllers and other instruments. Use of 316/316L stainless steel for all parts assures protection from harsh industrial and chemical environments. Operating temperature is -40 to 180°F. Model 67CFSR is adaptable to instrument mounting, back mounting, and nipple mounting. All maintenance can be performed with regulator in line.

Parker Hannifin Corp., Brass Products Div.
Otsego, MI 49078 1472
Dec 02, 2003 Flow Control Regulators mount directly on air cylinder and come in meter out versions. Adjustment screw provides precise airflow control, and locking nut resists effects of vibration. Regulators are offered with NPT threads and push-to-connect fittings or NPT threaded ports. All have solid brass body treated for chemical resistance, SS tube gripping ring, and nickel-plated brass adjustment screw. Working pressure is 15–145 psig and working temperature is 30–160°F.

Norgren
Littleton, CO 80120
Aug 21, 2003 Proportional pressure control valve allows infinitely variable adjustment of pneumatic pressure. Integrated amplifier and pressure transducer control valve outlet pressure in response to electrical command input signal. Actual outlet pressure is continuously sensed by built-in pressure transducer and fed back to amplifier. Valve is offered in NPT 1/4 and G 1/4 port sizes with output pressure ranges of 0–115 psi.

Oseco
Broken Arrow, OK 74012 1449
Aug 19, 2003 Series MVRB Metal Vent Reverse Buckling rupture panels can avert catastrophic explosions caused by overpressures in dust collectors, conveyor systems, and dryers. Smooth surface prevents product buildup and contamination, while non-fragmenting design increases process safety in event of panel rupture. Round panels range from 12–36 in. dia and come in SS, nickel, inconel, or monel. They feature 90% operating ratio and perform consistently in applications up to 700°F.

Beswick Engineering Co., Inc.
Greenland, NH 03840
Aug 14, 2003 Ultra-miniature Model PRD-1-N-1 features max width of 1 1/32 in. and max height of 1 in. It controls output pressures from 0–30 psig. Maximum rated inlet supply pressure is 300 psig. Both inlet and outlet ports are tapped 10-32 UNF. O-ring seals and diaphragm are Buna-N. Non-relieving, brass regulator is lightweight, can be mounted inline, and is suited for gas and pneumatic pressure regulation applications.

Scott Specialty Gases
Plumsteadville, PA 18949 0310
Aug 01, 2003 Model 8404 Automatic ChangeOver Regulator System combines pressure-reducing regulator with diaphragm valves to direct flow of gas from 2 separate high-pressure cylinders to point of use. When 1 gas source empties, system automatically draws from second source. Available with brass or 316L wetted body materials, unit is cleaned for oxygen service. Safe purge vent in rear of panel protects operators. Delivery pressure is adjustable from 0–200 psig.

SMC Corporation Of America
Indianapolis, IN 46226
Jul 09, 2003 Model ITV1000 electro-pneumatic pressure regulator provides max flow rate of 250 L/min when set pressure of 0.5 MPa is applied. It offers step-free control of air pressure proportional to electrical signal. Internal circuitry pulses supply and release valves to maintain desired output air pressure. Compatible inputs include 4-20 mAdc, 0-20 mAdc, 0-5 Vdc, and 0-10 Vdc analog inputs; and 4-wire digital input. Regulator is CE and IP65 rated.

Aeris Corporation
Kalamazoo, MI 49001
Jun 04, 2003 Control Box provides precise pressure regulation to each air caster while floating large loads on thin film of air. It includes 4 or 6 self relieving pressure regulators with gauges, on/off inlet ball valve, main air supply pressure gauge, transport handle, and quick disconnect outlets. Box allows main plant air supply to be distributed to each individual air caster, compensating for off-centered loads. Casters transport loads from 200 lb up to thousands of tons.