TRIFLOW Corp. - West Berlin, NJ (Serving Maryland)
Distributor, Custom Manufacturer, Manufacturers' Rep
Distributor of air/gas check valves, engine air & fuel check valves, hydraulic check valves & bubble-tight-shut-off check valves. Types of check valves include integral flapper, dual plate check valves, multi-function check valves, turbine non-return check valves & Y-globe stop check valves. Applications include oil & gas, pulp & paper, chemical, petrochemical, refining, mining, marine & power.
Brand Names: Apco, DeZURIK
www.triflowcorp.com/products.htm

Circle Valve Technologies Inc. - Harleysville, PA (Serving Maryland)
Distributor
Distributor of valves. Check valves, solenoid valves, ball valves, cryogenic valves, relief valves, needle valves, plug valves, actuated valves, diaphragm valves, pressure regulators. Markets 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/check-valv...

Hydraulic Check Valves Products
	CVH Series Check Valves

Advanced Fluid Systems, Inc. - York, PA (Serving Maryland)
Distributor, Manufacturer, Custom Manufacturer, Service Company
Distributor of hydraulic check valves. Hydraulic & pneumatic systems repairing, hydraulic purifier rentals, field installation, start-up, troubleshooting & hydraulic fluid testing services are available.
www.advancedfluidsystems.com/product-type.p...

U.S. Valve, LLC - Linthicum Heights, MD
Manufacturer, Custom Manufacturer
Specializing in the design & manufacturing of high performance check valves & ball valves that feature low pressure drop & the highest CV available. Full port, double disc check valves are intended to produce flow that is as close as possible to laminar resulting in longer life & lower maintenance. Customer connections include npt, flanged, wafer type, welded ends & grooved (Victaulic) ends. Three-piece valves allow for inspection & removal from a piping system with relative ease. Custom design valves from OEMs for specific applications.
www.usvalve.com

Flowline Components, Inc. - Baltimore, MD
Distributor, Manufacturer, Custom Manufacturer, Service Company
Distributor of check valves including hydraulic, high pressure, & stainless steel check valves. Available check valves feature streamlined soft seated poppet with restriction to flow & positive shut off. Provided with various spring pressures & seal options compatible with various types of fluids. Comes with wide variety of end fitting configurations, elastomers & option of 316 stainless steel construction & can configured to meet various system. Check valves are designed with 4:1 safety factor at maximum working pressure of 6000 PSI & used for various application. Also available are brass & stainless steel ball valves. Comes in various features & sizes. Additional products available include filters & clamps.