Mechanical and Electrical Suppliers


ASCO Series 300 Power Transfer Switch

The ASCO Series 300 was designed to automatically transfer critical loads in the event of a power outage. It is also designed to handle total system loads including motors and other high inrush and inductive loads.

ASCO 4000 Series Power Transfer Switch

ASCO Power Transfer Switches are the standard of the industry. High speed transfer of loads between alternate sources of power, regardless of ampacity size, is achieved by a reliable, field proven solenoid operating mechanism.

ASCO Medium Voltage Transfer Switches

ASCO protects medium voltage loads by offering maintainable and highly proven power transfer switches. The switches can be configured with protective relays and other options to meet specific project requirements.

ASCO 7000 Series Soft Load Power Transfer Switch

The ASCO 7000 Series Soft Load Power Transfer Switch synchronizes and parallels two independent power sources without interrupting power flow.

ASCO 7000 Series Service Entrance Power Transfer Switch

he ASCO 7000 Series Service Entrance Power Transfer Switch combines automatic power switching with a disconnect and overcurrent protective device on the utility source.

ASCO 7000 Series Power Transfer Switch

The ASCO 7000 Series Power Transfer Switch is available in the conventional, two-position transfer configuration, and closed or delayed transition modes of operation.

CTK03 ComfortNet™ Prestige Communicating Control & System

The ComfortNet™ Communicating Control is compatible with a wide variety of Goodman® brand condensing units and gas furnaces.


Type 21 Tempering Valve

Hoffman Specialty Tempering Valves are designed to control temperature in water mixing applications such as radiant floor heating, domestic hot water and industrial processing. They can also be used to divert flow in cooling systems. Series 21 Valves can be used for residential, industrial, commercial or institutional applications.



Model 793 Part No. 401500, 150 psig (10.3 bar) Part No. 401503, 250 psig (17.3 bar)
Drain Valve
Automatically removes water from compressed air tanks, air separators and after-coolers
Minimum air loss
1⁄2″ NPT outlet, 1⁄2″ NPT side inlet, 3⁄4″ NPT top inlet
Cast iron body and cover, stainless steel interior
Maximum pressure 250 psig (17.3 bar)



YStrainers are designed for steam, oil or water lines. Strainers should be installed ahead of temperature regulating and/or pressure reducing valves and steam traps to protect their moving parts from dirt, this is particularly important for new installations.




Thermosdisc Drain Valve

Automatically removes water from compressed air tanks, air separators and after-coolers
Freeze protection
Replaceable disc and seat for easy service
Only one moving part—reduces wear
Capacities to 1400 lbs./hr. (635 kg/hr.)
Maximum temperature 750°F (399°C)
Maximum pressure 600 psig (41.4 bar)
1⁄2″ NPT



Thermodisc Bear Trap

Thermodisc steam traps use flash steam velocity and pressure to move a free-floating disk to open and close a valve. Because the disc is the only moving part, the traps are rugged and resistant to damage.


Steam Traps

Series H Bear Trap®

• Models 3⁄4″ – 2″ feature Universal 4 – port tappings, (2 inlets, 2 outlets) that provide versatility to allow easy piping and system monitoring
• Sizes available: – 3⁄4″ NPT and BSPT – 1″ NPT and BSPT – 11⁄4″ NPT – 11⁄2″ NPT – 2″ NPT


Inverted Bucket BearTrap®

For efficient condensate drainage of industrial process and HVAC equipment.


Float & Thermostatic BearTrap

Automatic and continuous elimination of condensate and air at steam temperature increases system efficiency.