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Brand Name
Type
Voltage
Pressure
Zilmet ZEP-05 Expansion Tank 2.1G 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,
Specifications
Zilmet ZHT18-30 Expansion Tank 30 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,
Specifications
Item#:
ZHT18-30
Manufacturer Item:
ZHT18-30
Manufacturer:
ZILMET USA CORP
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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Item#:
12-H30
Manufacturer Item:
H30
Manufacturer:
DURATRAC PRODUCTS
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,
Specifications
Item#:
ZHT24-60
Manufacturer Item:
ZHT24-60
Manufacturer:
ZILMET USA CORP
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.
Item#:
12-H60
Manufacturer Item:
12-H60
Manufacturer:
WATTS REGULATOR CO
Flexcon Flex2pro PH5 16 ga Cold Rolled Steel Thermal Expansion Tank, 2.1 Gallon, 3/4" MNPT, 200 psig, 11" H x 8" Diameter
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- 100% butyl diaphragm and plastic liner to separate the system water from the tanks air precharge
- Stainless steel sleeve to prevent corrosion, something no other manufacturer offers
- Top chamber is 100% butyl rubber, lower water chamber is copolymer polypropylene
- High pressure, seam weld, helium, final precharge check testing
- Brass valve with o-ring seal
- 0.9 Gallon maximum accepted volume
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Amtrol Parts Amtrol Parts B135-40 Diaphragm Type Expansion Tank 2 Gallon 1/2" MPT 15 Lbs
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- Accepts expanded water as system temperature rises to reduce pressure build-up
- Helps reduce energy consumption and reduces system wear
- Suitable in propylene glycol applications with mixtures up to 50%
- Heavy-duty butyl/EPDM diaphragm
- Steel system connection
- Projection welded air valve
- 1 Gallon maximum acceptance volume
- Made in USA
- 13" H x 8" Diameter
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Amtrol Parts B135-61 Diaphragm Expansion Tank 4.4 Gallon 1/2" NPTM 100 psig 30 Lbs,
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Amtrol Parts B135-41 Diaphragm Type Expansion Tank 4.4 Gallon 1/2" MPT 30 Lbs
- Accepts expanded water as system temperature rises to reduce pressure build-up
- Helps reduce energy consumption and reduces system wear
- Suitable in propylene glycol applications with mixtures up to 50%
- Heavy-duty butyl/EPDM diaphragm
- Steel system connection
- Projection welded air valve
- Made in USA,
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Amtrol Parts B135-68 Diaphragm Expansion Tank W/444 Purger 4.4 Gallon 1/2" NPTM 100 psig,
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Amtrol Parts B135-60 Diaphragm Expansion Tank W/Fill Valve 2 Gallon 1/2" FNPT 100 psig,
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Constructed of the highest quality steel, the HTx are true work horses. HTx comes standard with a 100% butyl diaphragm. SxHT goes even one step further with our patented CAD2 diaphragm, offering even lower permeability rates at higher temperatures. Additionally, both tank lines' diaphragms are oversized, which maximizes drawdown and minimizes wear. This design feature virtually eliminates diaphragm stretch, further promoting longevity.
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- 16 ga cold rolled steel tank
- Appliance-quality paint for corrosion resistance
- 100% butyl rubber diaphragm
- Welded steel connection
- High pressure, seam weld, helium, final precharge check testing
- Brass valve with O-ring seal air valve
- 1 Gallon maximum acceptance volume
- 5 years warranty
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