BackStop® Hydronic ExpansionTanks absorb the expansion pressure in residential or commercial hydronic (forced hot water) heating and cooling systems. Each tank is pressure rated up to 150 PSI and equipped with a carbon steel connection. High-grade, deep drawn steel is used for improved strength to weight ratio. Larger models feature a rugged, stable, base.

• MATERIALS
• Shell: Carbon Steel
• System Connection: Carbon Steel
• Coating: Metallic Silver Paint
• Diaphragm: Heavy Duty Butyl Rubber
• Liner Material: No Liner
• Factory Preset Pressure:12 PSI
• OPERATING LIMITATION
• Max. Pressure: 150 PSI (1035 kPa)
• Max. Temperature: 210° F (99° C) ,
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  12-H30

Zilmet ZHT24-60 Expansion Tank 60 3/4 MPT
Specifications

Carbon Steel Shell

Stainless Steel Connection

Butyl fixed membrane

Max operating pressure: 150 PSIG

Operating temperature: 210°F

Factory precharge: 40 PSIG

5 year limited manufacturer warranty,

Zilmet ZHT24-60

BackStop® Hydronic ExpansionTanks absorb the expansion pressure in residential or commercial hydronic (forced hot water) heating and cooling systems. Each tank is pressure rated up to 150 PSI and equipped with a carbon steel connection. High-grade, deep drawn steel is used for improved strength to weight ratio. Larger models feature a rugged, stable, base.

duratrac 12-h60

Honeywell C320-15 Dual Aquastat High Limit/Low Limit or Pump,
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Honeywell C320-15

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
• 15 psi set and 30 psi relief valve setting

Sid Harvey Item #:B144-1A: Replaces Part #:'s : B138-1 | B138-1R | B143-12,
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Watts Water B144-1A

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

Sid Harvey Item #:B121-1: Replaces Part #:'s : 2K416,
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Watts Water B121-1

Taco EWF120 Electric Water Feeder120 VAC,
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EWF120

Electric Water Feeder 2350000 BTU Output Import

• Eliminates necessity to manually add water to the boiler
• Can be used with mechanical or electronic low water cut-off controls
• Quick-change replaceable cartridge valve and strainer
• Manual feed button

Sid Harvey Item #:B112-10: Replaces Part #:'s : 13549,

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McDonnell & Miller B112-10

Electric Water Feeder 24 volt 150 psi Maximum Water Supply 25 psi Maximum Boiler

• Eliminates necessity to manually add water to the boiler
• Can be used with mechanical or electronic low water cut-off controls
• Quick-change replaceable cartridge valve and strainer
• Manual feed butTon
• 40 VA transformer

Sid Harvey Item #:B112-8: Replaces Part #:'s : L38-767,
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McDonnell & Miller B112-8

Resideo L7224U1002 Electronic Aquastat Oil 120 VAC,

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Resideo L7224U1002

CycleGard Electronic Low Water Cut-Off 120 VAC 15 psi Automatic

• Burner circuit contacts open after 15 sec delay in a low water condition
• Automatically reactivates burner circuit 30 sec after water reaches the probe, allowing optional water feeder to raise water level above the probe
• Intermittent level test (ILT) feature provides maximum boiler protection by removing power from the burner circuit at set intervals
• NEMA 1 enclosure

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Hydrolevel Parts CG4501560

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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McDonnell & Miller B103-5