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4A Air Valve (non-vacuum) for Small Steam System Mains
Hoffman Specialty's Model 4A Part No. 401413 Air Valve (non-vacuum) Float-type thermostatic vent. For residential or small one-pipe or two-pipe steam systems. Single non-adjustable port.
| Model | List Price | Your Price | Quantity |
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Main Vent 401413    
Quantity Breaks Available:
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$46.00 | $36.80 |
Angle Pattern Jacobus Steam Vent
Angle Pattern, 1/8 Inch, JacobusŪ Steam Vent by Maid-O-MistŪ. Maid-O-Mist Steam Vent Port / Valves are used for radiators in a room that a thermostat is located; or where radiators affect operation of a thermostat.
Main Steam Vents for Medium & Large Steam Systems
Hoffman Specialty Air Valves - Model 75, #401434 (for Low Pressure Steam) & Model 75H, #401437 (for High Pressure Steam). Float-type thermostatic vent (non-vacuum)for medium and large steam systems. Single non-adjustable port, 1⁄2" NPT female and 3⁄4" NPT.
| Model | List Price | Your Price | Quantity |
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Model #75 Low Pressure Steam 401434
Quantity Breaks Available:
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$104.00 | $83.20 | |
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Model #75H - High Pressure Steam 401437
Quantity Breaks Available:
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$112.00 | $89.60 |
Pressuretrol Controller
PA404A Pressuretrol Controller - Pressure actuated high limit, safety control for steam heating boilers. It breaks an electrical circuit to shut down the burner if steam pressure rises above a safe level.
| Model | List Price | Your Price | Quantity |
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High Limit, Safety Control PA404A 1033
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$130.81 | $98.11 |
Pressuretrol Controller for Steam
PA404A 1009 Pressuretrol Controller for Steam
| Model | List Price | Your Price | Quantity |
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Series 40 Mulitvoltage PA404A 1009
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N/A | $130.00 |
Radiator Steam Vent - Air Valve (non-vacuum)
Hoffman Radiator Steam Vent / Air Valve (non-vacuum) Model - 1A, Part #401422. 1/8 inch MIP, angle connection. Float type vent. Adjustable port for true proportionable venting - 6 different port settings from slow (1) to fast (6). Use: Mounted on the side tapping of a radiator that is connected to a one-pipe steam heating system.
| Model | List Price | Your Price | Quantity |
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1/8" Male NPT 1A
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$41.00 | $32.80 |
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