Spence Engineering Company, Inc.
Temperature and Pressure Control Regulators for steam, air, gas, and liquids. Safety Relief Valves for
steam, air, and liquid. Steam Specialties, Diaphragm and Electric Operated Control Valves and Controllers. Complete line of Pipeline Strainers.
Nicholson Steam Trap
Thermostatic, Thermodynamic, Float & Thermostatic and Sanitary Steam Traps for
high-pressure steam (up to 650 psig.) Drain Orifice Traps, Uniflex (no leak) Unions, Pressure-Operated Condensate Pump Packages.
H.O. Trerice, Inc.
Complete line of Thermometers, Pressure Gauges, Temperature Recorders, and Accessories.
Temperature Regulators for steam, air, gas, and liquid applications. Diaphragm and Electric Operated Control Valves and Controllers.
Ari Armaturen
Control valves with Pneumatic or Electric Actuators, Pneumatic, Analog or Digital Electric Positioners. Safety Relief Valves for steam, gas, or liquid service. Float & Thermostatic and Bimetallic Steam Traps for high pressure Service (up to 2500# class).
Parker Boiler Company
Steam boilers, hot water boilers, thermal liquid heaters, water softeners, storage tanks,
condensate return feedwater systems, boiler room accessories.
MEPCO
(formerly Dunham-Bush)
Condensate Return and Boiler Feed Systems, Steam Vacuum Pumps, Base Mounted and
Close-Coupled Centrifugal Pumps. Turbine Pumps and Steam Specialties.
Hydronic Balancing Valves, Non-Electric Thermostatic Radiator Valves for Steam and Hot Water. Pressure-Operated
Condensate Pump Packages.
Precision Boilers, LLC
Electric Hot Water and Steam Boilers, Electric Water Heaters, ASME Code Storage Tanks,
Packaged Indirect Fired Storage Heaters, Copper Fin Tube Hot Water Heaters and Boilers, Vertical Firetube Boilers for steam or hot water.
Marsh-Bellofram
Air Regulators, Pneumatic Relays and Boosters, Electro-Pneumatic I/P, E/P, and P/I Transducers, Pneumatic Diaphragm Cylinders, Filter-Regulator-Lubricator Assemblies.
Graham Manufacturing
Plate & Frame Heat Exchangers, Brazed Plate Heat Exchangers, Packaged Domestic Water Heaters, Clean Steam Generators
Russell Pump & Engineering
Close-Coupled Centrifugal Pumps, Self-Priming Centrifugal Pumps, Stainless Steel Condensate Return and Boiler Feed Pump Packages
Advance Valve Inc.
Supplier of certified safety relief valves from Leser, Spence Engineering Company, Tuchenhagen, Fulflo, Mankenberg, Watts, DFT, Cobraco Industries,
Rockwood Swendeman, Tecval, and Ari-Armaturen. Advance valve holds both the V and UV stamp of the ASME for the assembly of new
safety relief valves, as well as the National Board VR stamp for the repair of ASME certified valves.