
The Leader in Solids-Processing Valves
History
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1916 Gemco is founded in Newark as the General Machine Company of NJ.
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1920 Gemco developed tumbler blenders to mix gunpowder for DuPont.
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1930 Gemco developed full-port Spherical Disc valve for powder handling.
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1983 Invested in our present location in Middlesex, New Jersey.
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1997 Gemco Valve was founded to specialize in valves for powder processing.
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2001 Gemco became ISO 9001-2000 qualified.
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2017 Gemco Valve became ISO 9001-2015 qualified.
Industries
More than 30 Powder processing businesses including:
Food, Pharma, General Chemical, Petrochemical, Coal, Ceramics and OEMs.
Customers
BASF, BP, DOE, Dow/DuPont, Exxon, GE, Merck, NASA, P&G, Pfizer…
Applications
Reactor feed or tank charge/discharge valve.
Containment of irritant/sensitive material.
Control of sub-micron to coarse aggregates over a wide range of pressure, vacuum and temperatures.
Regulate flow by single valve proportional control or cycling double dump valves.
Features
Full port openings, self-cleaning area, no pinch points.
Our Products

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T Valve – For heavy duty service
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TLD Valve – Versatile and lightweight
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Sani K Valve – Sanitary K Valve is designed to USDA and FDA guidelines
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D2 Diverter Valve – ‘Y’ junction 3-Way Valve
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VB Valve – Ball Segment Valve in 25mm to 75mm sizes.
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Double Dump Airlock – For flow of material between two atmospheres
P21 Design
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Standard ANSI 150# bolting pattern – 6” valve has a 6” full port opening with a 6” 150# pattern.
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Shutoff disc is fully contained with the valve body eliminating the need for transition pieces.
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Seats available in RPTFE, PEEK and Metal – Stellite/Tungsten Carbide coated.
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Inflatable seal is manufactured from Silicone, Neoprene, FKM – Fluoroelastomer – Viton, and FFKM – Perfluoroelastomer – Kalrez for highest corrosion resistance.
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Inflatable seal is contained within a metal seat for superior protection.
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Valve body is designed, manufactured and tested to ASME standards.
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Valve is tested and certified to ANSI class VI shutoff.
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Valve carries a 2-year warranty.

Quality
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FAT – Factory Acceptance Test to your specifications.
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Gemco Valve is ISO 9001 2015 certified
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33% of sales are international including Canada – CRN/CSA and Europe – PED/CE.
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We are a preferred supplier to DOE and NASA.
Service
Emergency repair services available.
Engineering and service experts available for consultation and site visits.
Your project drawings, documentation, manuals, available from gemcovalve.com/myorder.
Engineering drawings available in .pdf, .dwg, .dxf (2D) or .iges (3D) formats.
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