Boylston Twenty-First Century, LLC. - Brookfield, IL
Manufacturer
Manufacturers & rebuilders of pressure regulating valves. Construction features include extra heavy cast bronze 300 lb. globe body suitable for inlet pressures up to 250 psig, twin springs give a wide choice of reduced pressures and an exceptionally close control when accurate regulation is desired. Valve may be installed in horizontal or vertical runs of pipe with the diaphragm facing either up or down. Pressure outlet range may be easily varied approximately 15 lbs. either side of reduced pressure ordered. Sizes available in sizes from ½ in. to 2 in. inclusive with both ends screwed only.
www.boylstonprv.com/prv.htm

Plast-O-Matic Valves, Inc. - Cedar Grove, NJ
Manufacturer, Custom Manufacturer
Manufacturer of standard & custom valves including pressure control, pressure reducing, pressure regulating & pressure relief valves. Types include spring operated, air operated & differential pressure regulators. Available in PVC, polypropylene, PVDF & PTFE materials. Features include engineered thermoplastics for corrosive & ultra pure liquids, 1 piece body construction for eliminating internal leakage, stainless steel fasteners, relief setting from 10 psi to 125 psi, maximum inlet pressure up to 150 psi. Services include product innovation, engineering, precision manufacturing, pressure, flow & corrosion-resistant plastic piping, quality testing & technical assistance. RoHS compliant.
www.plastomatic.com/pressure-regulators.htm...

Aqua Environment Co., Inc. - Stinson Beach, CA
Manufacturer
Manufacturer of high pressure control, reducing, regulating & relief valves made from bronze, anodized aluminum & Viton®. Specifications of relief valves include 300 psi to 6,000 psi set pressures, 0.78 in. dia. equivalent orifices, 1/4 in. male NPT inlet, 7/8 in. hex & 2.1 in. lengths & minus 40 degrees F to 160 degrees F operating temperatures. Pressure control valves are available in zero seal hysteresis design. Valves are suitable for discharge & interstage reliefs on high pressure compressors, reliefs on charging lines, regulators & manifolds & hydraulic systems & accumulator reliefs.
valvesandregulators.aquaenvironment.com/

Pressure Control, Reducing, Regulating & Relief Valves Products
	211 Back Pressure Regulators 635 High Flow Back Pressure Regulators 1310 Back Pressure Regulator

Georg Fischer Piping Systems - Tustin, CA
Manufacturer
Six sigma capable ISO 9001 & ISO 14001 certified manufacturer & distributor of standard & custom pressure, back pressure, low pressure, pressure control, reducing, regulating & relief valves. Materials used include polypropylene & PVC. Pressure regulating valves range in pressure ratings from 7 psi to 150 psi & operating temperatures from -4 degrees F to plus 248 degrees F. Markets served include automotive, chemicals, confectionery, control & instrumentation, drugs & pharmaceuticals, electronics, food processing & mining.
Brand Names: PROGEF, Sygef
www.us.piping.georgefischer.com/go/Products...

Pressure Control, Reducing, Regulating & Relief Valves Products
	L-Port PVC PVC More

Emerson Process Management Regulator Technologies, Inc. - McKinney, TX
Manufacturer, Custom Manufacturer
ISO 9001:2000 certified manufacturer of valves including pressure, pressure control & pressure reducing valves. Features include globe or angle design, drilled hole cages, o-ring seat ring gasket, low flow rate & high temperature shut off. Markets served include chemical, oil & gas, refining, pulp, paper, power, food & beverage, life sciences, waste water management, LNG, pharmaceutical & consumer. Products are CE certified & ASME compliant.
www2.emersonprocess.com/en-US/brands/fisher...

Pressure Control, Reducing, Regulating & Relief Valves Products
	H120 Series Relief Valves Type H200 Relief Valve Type H800 Relief Valve More

Singer Valve LLC - Surrey, BC
Manufacturer
Manufacturer of pressure control, reducing, regulating & relief valves. Grooved end, internal drop check, position indicator, transmitter, oxy-nitride stem and limit switch indicator main valve options available. FM and UL approved. Three year warranty.
www.singervalve.com/products/18

Taco, Inc. - Cranston, RI
Manufacturer, Custom Manufacturer
ISO 9001:2008 certified custom manufacturer of pressure control, reducing, regulating & relief valves. 10 psi to 50 psi adjustment range, 20 dB maximum noise output, 1/2 in. bottom tapping, 230 psi maximum inlet pressure, 180 degrees F maximum fluid temperature, Features of relief valves include erosion & corrosion resistance, integral stainless steel coaxial strainer, dial-up pressure setting, bronze body & internal parts of stainless steel & engineered plastics. ASSE & WRC approved & meets DGVW standards.
Brand Names: Pro Fit
www.taco-hvac.com/products.html?current_cat...

Pressure Control, Reducing, Regulating & Relief Valves Products
	Pressure Reducing Valve Cartridge Style Pressure Reducing Valve

CAT PUMPS® High Pressure Pumps & Systems - Minneapolis, MN
Custom Manufacturer
Wide selection of industrial valves for pressure control, reducing, regulating & relief with triplex high pressure pumps & systems including regulators, unloaders, relief valves & pulsation dampeners.
www.catpumps.com/products/accessories.asp

M & M Control - Antioch, IL
Distributor, Manufacturer, Custom Manufacturer, Service Company
Distributor of various valve types for some of the industry's most prominent manufacturers. Products include pressure regulating & back pressure valves for steam, air/gas, liquid & cryogenic applications. These valves range in size from 1/8" to 2" for threaded NPT connections & up through 6 inches for flanged configurations. They also feature a wide selection of pressure reductions with initial inlets of 720 PSI & reductions from 1 to 400 PSI as well as temperature capacities between cryogenic up through 800º F. Other offered control valve types include diaphragm, temperature, back pressure, safety & relief valves.
Brand Names: Apollo, Aquatrol, Aquatrol, Armstrong, Ashcroft, Barber Coleman, Barber-Colman, CLA-VAL, Cash Acme,...
www.mmcontrol.com/valves.php

Boig & Hill, Inc. - Valley Stream, NY
Distributor, Custom Manufacturer, Manufacturers' Rep
Distributor of Farris valves including carbon steel relief & lever operated valves for pressure controlling, reducing, regulating & safety applications. Specifications of valves include inlet size ranging from 1 in. to 8 in. & outlet size ranging from 2 in. to 10 in. Features of valves include stainless steel trim construction & flanged outlet connections. Valves are capable of handling steam, vapor, gas & liquid. Meets ASME standards.
Brand Names: Access, Deste, Everlasting, Farris, Flowserve, K-MASTER, Kunkle, Lonergan, Spence, Teledyne Farris,...
www.boighill.com/sprague.html

Century Instrument Co. - Livonia, MI
Manufacturer
Manufacturer of pressure control, pressure reducing & pressure regulating valves. Diaphragm pressure relief valve is self-contained, spring loaded & requires no air pressure or outside power source to function. Valves are available in a variety of body materials, linings & diaphragms & with pressure relief stetting from 10 to 150 psig. Applications include protecting piping systems of plastic or glass against over-pressure, pipe line surges & water hammer. Capabilities include relief at a preset pressure & reseating automatically when a safe working pressure is restored.
www.centuryinstrument.com/830.html

Pressure Control, Reducing, Regulating & Relief Valves Products
	Model 730-RV Diapgram Control Valve

Generant - Butler, NJ
Distributor, Manufacturer, Custom Manufacturer
ISO 9001:2000 certified custom manufacturer of high pressure relief valves. Specifications of high pressure relief valves include set pressure ranging from 10 psi to 2,400 psi, set pressure tolerance plus/minus 5% on increasing pressure, inline valves proof pressure 3,700 psi & burst pressure above 5,000 psi & temperature range from 320 degrees F to 400 degrees F. High pressure relief valves are available in brass, carbon & stainless steel materials, with O-ring seals, & narrow band interchangeable springs. Valves are also available with manual pull ring override. RoHs compliant.
Brand Names: Bi-Lok
www.generant.com/hprv.shtml

TRIATEK - Norcross, GA
Manufacturer
Manufacturer of a broad line of venture valves for fully pressure independent air flow control & pressure control applications. Valves are available in stainless steel, aluminum or Heresite in sizes including 6 in., 8 in., 10 in., 12 in., & 14 in. Venturi valves can also be ordered with sound insulation. Venturi valves range in flows from 30cfm to 2,100 cfm over an air volume range of 0.6 in WC to 3 in. WC, are accurate to within +/- 5% & can be ganged together for greater output. Valves feature pressure independent operation, constant flow control, factory calibrated flow, low pressure drop, field adjustability & electric or pneumatic actuators.
www.triatek.com/venturi_valves.html

Ives Equipment Corp. - King of Prussia, PA
Distributor, Custom Manufacturer, Manufacturers' Rep, Service Company
Manufacturers rep. & stocking distributor of valves including solenoid valves, air actuated & operated, pressure control valves, ball valves, multi-port valves, automated, actuated, pneumatic, electric, brass, custom, graphite & metal seated, lined & floating, stainless steel ball valves are available. Special ball valves including motorized, seal welded, soft seat & stackable manifold, & V-port ball valves are available. Gate, globe, check, blow-off, butterfly, sanitary, diaphragm & stainless steel valves are available. High performance, triple offset, lined, & plastic butterfly valves, high pressure, corrosion resistant, direction & flow control, solenoid piloted diaphragm, indicator, lined, instrument, industrial & rotary valves are available. Multi-way valves including 2-way, 3-way, 4-way, 5-way & Y flow control valves are available.
Brand Names: ASCO, Alfa Laval, Apco, Ashai/America, Cameron, Clow, Crane, Demco, Flex-Valve, Flowserve, Hilton,...
www.ivesequipment.com/valves.html

Associated Steam Specialty Co. - Locations
Distributor, Manufacturers' Rep
Manufacturers rep. & distributor of pressure control, reducing, regulating & relief valves. Types of valves also include trap valves, steam & water mixing valves, automatic balancing valves, manual balancing valves, solenoid valves, pneumatic valves, safety relief valves, check valves, temperature regulating valves, piston valves, radiator valves & test valves.
www.associatedsteam.com/line.htm

Circle Valve Technologies Inc. - Harleysville, PA
Distributor
Distributor of pressure, pressure control, reducing, regulating & relief valves. Check valves, solenoid valves, ball valves, cryogenic valves, relief valves, needle valves, plug valves, actuated valves, diaphragm valves & pressure regulators. Market served include industrial gas, chemical, medical, power, marine & oil & gas processing.
Brand Names: 3B Filters, Aerodyne, Atkomatic, Circle Seal Controls, Contromatics, Duravalve, Go, Gyrolok,...
catalog.circlevalve.com/category/relief-val...

Pressure Control, Reducing, Regulating & Relief Valves Products
	500 Series Relief Valves 0.5 to 150 psig HP500 Series Relief Valves 150 to 575 psig D500 Series ASME Safety Relief Valves 15 to 150 psig More

Thorco Holdings, LLC - Locations
Distributor, Manufacturers' Rep, Service Company
Stocking distributor of valves including pressure control, reducing, regulating & relief valves. Valves are available in 1/2 in. x 1 in. to 20 in. x 24 in. dimensions with 15 psig to 6,500 psig pressure & minus 450 degrees F to plus 1,500 degrees F operating temperature. Relief valves are suitable for air, steam, vapor & liquid service applications.
www.thorcousa.com/relief-valves.html

Diller Brown - Oviedo, FL
Manufacturers' Rep
Manufacturers rep. of pressure valves including pressure control, reducing, regulating & relief pressure valves. Other control valves such as automatic control valves, automatic pump control valves, electronic interface control valves, surge & water hammer control valves, flow control valves & level control valves are also available. Pressure valves are used in water & wastewater applications.
Brand Names: CLA-VAL
www.diller-brown.com/

Pinnacle Industrial Supply, Inc. - San Diego, CA
Distributor, Manufacturer, Custom Manufacturer, Service Company
Distributor of high pressure valves, pressure control, reducing, regulating & relief valves, aircraft & aerospace high pressure valves & high temperature valves. Types of valves include ball, gate, globe, check, butterfly & specialty valves. Available in different metals, plastics, pressures & end connections. Services include product training, consultation & plasma cutting.
www.pinnacleindsupply.com/products/valves.p...

The Specialty Mfg. Co. (SMC) - Saint Paul, MN
Manufacturer
ISO 9001:2008 certified manufacturer of unloading valves, pressure control, pressure reducing, pressure regulating & pressure relief valves in brass with Buna-N, Ethylene Propylene & Fluoroelastomer (Viton®) seal materials. Available sizes include 1/4 in., 1/8 in. & 3/8 in. male & female pipe thread (NPT) end configurations. Adjustable from 200 to 2000 psi. Applications include car wash, parts washer, pressure washer & flow control applications.
valves.specialtymfg.com/category/pressure-c...

Pressure Control, Reducing, Regulating & Relief Valves Products
	667 RELIEF VALVE - 1/4" NPT 1/8 MNPT TOGGLE VALVE - 10-32, 1/8" NPT, 1/16" to 1/8" BARB 1/8 FNPT TOGGLE VALVE - 10-32, 1/8" NPT, 1/16" to 1/8" BARB More

Parker Hannifin Instrumentation Products Div. - Huntsville, AL
Manufacturer
Manufacturer of valves including pressure, pressure control, reducing, regulating & relief valves, back pressure valves, high pressure valves, high temperature valves & low pressure valves. Types of valves also include ball valves, check valves, miniature pneumatic diaphragm valves, PFA & PTFE needle valves, plug valves, relief valves, sampling valves, manual & pneumatic slurry valves, solenoid valves, PFA & PTFE stopcock valves, manual & pneumatic diaphragm valves, 2-way multi-turn manual diaphragm valves, 2-way 1/4 turn manual diaphragm valves, 3-way manual diaphragm valves, 2-way pneumatic diaphragm valves & 2-way adjustable bypass pneumatic diaphragm valves.
www.parker.com/portal/site/PARKER/menuitem....

MSC Industrial Supply Co. - Melville, NY
Distributor, Custom Manufacturer
Supplier of 450,000 products from 2,500 mfrs.: cutting/machine/hand/power tools, MRO supplies, abrasives, fasteners, precision instruments, machinery, electrical supplies, safety equipment, HVAC, welding, hose, tubing, fittings, material handling, pumps, power transmission, janitorial; same day shipping
www.mscdirect.com

Ryan Herco Flow Solutions - Locations
Distributor
Worldwide distributor of pressure, pressure control, pressure reducing, pressure regulating & pressure relief valves. Primary fluid systems pressure control valves are also available. Materials include PVC, polypropylene, PVDF & PTFE. Markets served include water, health, electronics, chemicals & waste. ISO 9000 compliant.
Brand Names: Chemplast, Dwyer, Hayward, Marquest Scientific, Micromold, Plast-O-Matic, R-K, Saint-Gobain
webcat.rhfs.com/categorylist.aspx?catID=F32...

Indeck Power Equipment Co. - Wheeling, IL
Distributor, Manufacturer, Custom Manufacturer, Service Company
Manufacturer & distributor of valves including fuel pressure valves, high pressure valves, repaired or exchanged pressure relief valves & pressure control, pressure reducing & pressure regulating valves. 24-hours emergency services available. Markets served include pulp & paper, textile refinery, food, pharmaceuticals & co-generation.
Brand Names: AquaMatic, Ashcroft, Bailey Valve, Conbraco, Crane, Crosby, Everlasting, FISHER, Honeywell,...
www.indeck.com/accessories.htm

Magnatrol Valve Corp. - Hawthorne, NJ
Manufacturer, Custom Manufacturer
Manufacturer & custom manufacturer of pressure valves including pressure control, pressure reducing, pressure regulating, & pressure relief valves. Pipe size ranges from 1/2 in. to 3 in. Pressure ranges from 150 psi to 300 psi . Maximum fluid temperature is 400 degrees F. Available in bronze & stainless steel. Suitable to control the flow of steam, corrosive fluids, deionized water, condensate, ammonia, vegetable oils, fuel oils, cryogenics, & flammable liquids
www.magnatrol.com/valveselect.html