Current Selected Location - Sid Harvey Garden City (0999) Garden City NY

Mcdonnell & Miller GuardDog 751P-MT-120 Electronic Low Water Cut-Off, 120 VAC, 15 psi Steam, 160 psi Water, Automatic Reset

• No lock out with loss of power if probe is in water
• Test butTon
• Green LED indicates power on
• Red LED indicates low water
• 20000 ohm probe sensitivity
• With standard probe

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Taco boiler feed valves automatically feed water to a system whenever pressure in the system drops below the pressure setting of the valve. The dual control models combine the boiler feed with an in-line pressure relief valve. The built-in check prevents emptying the system if incoming pressure falls. They feature fast fill rates and an exclusive, lockable fast fill lever. Each valve is adjustable from10 to 25 psi, has a built-in check to prevent the emptying of the system if incoming pressure fails, and the easy to use fast fill lever is lockable.

Fast fill rate
• Exclusive fast fill lever lock
• Built-in check to prevent emptying the system if incoming pressure fails
• Pressure setting adjustment separated from fast fill lever for easy, fast adjustment
• 100 psi maximum supply side pressure, 30 psi relief valve setting, 12 psi factory setting
  

Mcdonnell & Miller 309100 Manual Reset Low Water Cutoff Switch, DPST

Mcdonnell & Miller PSE-801-M-120 Low Water Cut-Off, 120 VAC, 15 psi Steam, 160 psi Water, Manual Reset

Lockout delay
• Power interruption
• Self cleaning probe
• No lock out with loss of power if probe is in water
• Green LED indicates power on
• Red LED indicating low water condition
• 7000 ohm probe sensitivity
  

Hydrolevel Safgard 170SV Low Water Cut-Off, 120 VAC, 160 psi, Automatic Reset

Combustion pressure switch check feature and communication interface capability
• Heavy duty electro-mechanical design for long life
• Automatically re-energizes circuit upon return to safe water level
• Equipped with shorter probe for mounting in standard reducing tees
• SPDT switch contact
• Includes shorter EL1214-SV probe suitable for mounting in standard black tee
  

Dual Float and Switch Assembly 15 psi

1-piece unit that facilitates installation and ensures the most up-to-date construction
• Complete float and dual switch assembly
  

Bell & Gossett B-38 Cast Brass Pressure Reducing Valve, 1/2", NPT, 10 - 25 psig

Fast fill feature reduces start-up time and labor
• Low inlet pressure check valve help prevent loss of system pressure if the supply water drops below system pressure
• Convenient cleanable strainer is designed to prevent dirt and sediment from entering the system
• Brass body construction is highly resistant to corrosion-ideal for water systems
• Reducing valves protect heating and plumbing systems against excessive line pressures
• Equipped with built-in-strainer and low inlet pressure check valve
• They are factory set at specified limits although adjustment is easily made
• Construction - cast brass body, with special insert diaphragm, EPDM check valve, brass seat, brass with EPDM insert stem, brass valve plate, stainer and strainer nut wetted parts and steel non-wetted parts
  

Taco Flo-Checks prevent gravity circulation in forced hot water heating systems during periods when the boiler is hot, but the space heating zone is not wanted. This makes it possible to use the heating boiler to maintain domestic hot water year-round. You can also use Flo-Checks in systems with multiple circulator zones to allow heat to flow only into the zones that are calling for heat. In addition, the thumb screw can be opened manually for gravity feed applications, if the main circulator stops operating.

In systems with multiple circulator zones to allow heat to flow only into the zones that are calling for heat
• Feature a thumb screw to manually open the valve and are available in a cast iron universal body and a bronze sweat in-line configuration
• The thumb screw can be opened manually for gravity feed applications, if the main circulator stops operating
• Open automatically when the circulator starts running, when the room thermostat is satisfied and the circulator is stopped, the flo-checks close immediately, preventing gravity circulation
• Water or glycol media
  

Watts Regulators series 1450F dual controls regulator and relief Valve are for use in commercial and residential hydronic heating systems to fill the boiler and piping system with water, and to maintain water pressure in the system at all times. It also provides make-up water to the system in the event of system leaks. It consists of an iron and bronze body construction with NPT threaded inlet and outlet connections, an attached iron body, diaphragm relief valve, a tight seating check valve, purge lever for manual purging, and a stainless steel strainer. Series 1450F has high capacity performance and simplified servicing design. It is suitable for use in the boiler feed lines of hydronic heating systems.

Combination fill valve and safety pressure relief valve
• Tight seating check valve
• Purge lever for manual purging
• High capacity
• Stainless steel strainer to protect the valve disc from fouling
• 100 psi working , 15 psi set and 30 psi relief valve setting
  

Watts Regulators series 174A boiler pressure relief valves are used in hot water heating and domestic supply boiler applications to protect against excessive pressures on all types of hot water heating supply boiler equipment. It consists of a bronze body construction with NPT threaded female inlet and NPT threaded female outlet drain connections, non-metallic disc-to-metal seating, stainless steel spring, and test lever. Series 174A resists corrosive water conditions, sticking and freezing and prevents water and sediment from being trapped in the seat. It is designed for emergency safety relief and shall not be used as an operating control.

Sid Harvey B136-3 Pressure and Temperature Gauge, 2-1/2" Dial, 1/4

Amtrol Parts 445 Cast Iron Air Purger, 1-1/2", 125 psi, 4" W x 6" H

Separates air from water in closed loop hydronic heating system
• System connection sets the point of no pressure change
• 1-year warranty
• 1/8" NPT top tapping, 1/2" bottom tapping