Capacity Hydronic Expansion Tanks Vessels for Closed Hot Water Heating Systems

• Customization: Available
• Certification: ISO9001, CE, Water Mark/NSF/Kc/Wras
• Heating Type: Water Heating Systems
• Model NO.: TY-18-DK16-600L-004
• Nominal Volume: 600 Liter
• Useful Volume Max: 490 Liter
• Max. Working Pressure: 16 Bar
• Max. Temperature: 70°c
• Factory Air Pre-Charge: 4.0 Bar
• Pre-Charged Gas: Nitrogen Gas
• Shell: Mild Steel
• Tank Shell Treatment: Powder Epoxy Coating
• Connections: G 1 1/2" Carbon Steel
• Membrane: Replaceable
• Bladder Membrane: EPDM
• Diameter: 740 mm
• Overall Height: 1859 mm
• Vessel Color: Blue/Red
• OEM Service: Availble
• Transport Package: Foam Packing
• Specification: 750x750x1880
• Trademark: Dezhi/Aqua Leader
• Origin: Taizhou, China
• HS Code: 9032900090
• Production Capacity: 200 Units Per Day

Product Description

Capacity Hydronic Expansion Tanks Vessels for Closed Hot Water Heating Systems

Product Description

Cuztomized Export Model is the model for export ONLY,In order to protect our area oversea dealers ,no sales to inside China ,only direct export .

Description:

An expansion vessel, pre-charged with nitrogen instead of compressed air, to meet the requirements of most heating systems and for use with potable water. The Expansion vessels for potable water systems are manufactured to meet the requirements of PED 97/23/EC Directive and BS EN 13831:2007 'Closed expansion vessels with built in diaphragm for installation in water'.

Why use Nitrogen Instead of Compressed Air?

The oxygen in compressed air permeates through the membrane, reducing the pre charge pressure. During
normal function, oxygen oxidizes the membrane in the vessel, causing under-inflation and deterioration of the rubber.

Dry nitrogen by comparison maintains proper inflation pressure longer, will not corrode the inside of the vessel
and extends valve and expansion vessel life. Industry research indicates that oxidative aging is one of
the primary causes of decreased vessel life. Oxidative aging that is caused by the diffusion of oxygen from the
pressurized air cavity of the vessel to the outside atmosphere.

Tests have shown that if vessels are inflated with nitrogen, there is a significant reduction in failure.

How does Nitrogen help?

While both nitrogen and oxygen can permeate rubber,nitrogen does it much more slowly. It might take 6 months
to lose 2psi with nitrogen, compared to just a month with air. And nitrogen is far less reactive. It doesn't cause rust
or corrosion on steel or aluminum, and it doesn't degrade the rubber seal used in the pre charge valve extending valve core life and help prevent core leaks.
Technical Parameter 

Name	Potable Water Expansion Vessel
Application	For sanitary hot water systems
Max. working pressure	10 bar
Max. temperature:	70°C
Factory air pre-charge:	4.0 bar nitrogen
Capacity:	600 Ltr
Useful Capacity	489 Liter
Shell	Carbon steel
Connections	G 1 1/2" Carbon steel
Diaphragm	Replaceable
Membrane Material	Synthetic rubber compound
Vessel Diameter	740 mm
Vessel Height	1890 mm
Contact Person	Mr.Tom Lee

Company Profile

    Taizhou Tianyang Electrical co.,LTD. Is located in Shangma industrial Zone,Shitang Town,Wenling City,Zhejiang Province,covering an area of 15,000 square meters.Our Company has over 30 years experience in mold design and exploition. "DEZHI"and "AQUALEADER" are our proprietary brand of our company.We have produced pressure tank for more than 20 years.Available volumes range from 0.5 to 1500 liters.and working pressure from 4 bar to 25bar. Our products are applied to pump systems .Our products are exported to numerous overseas clients.We can custom design and manufacture products according to client-supplied requirements.
    We adhere to the business philosphy"Credibility,Quality and service",our scientific management is based on the domestic market, but facing to the world.Warmly welcome customers both domestic and from abroad.We sincerely hope to cooperate and develop together to create a better future.
    Taizhou Tianyang Electrical Co.,Ltd. Is always your most loyal partner.


  1.Q: What is your MOQ of this item?   
      A: We are a factory, have stock. 1PCS is ok!

   2.Q: What is the delivery time?    
      A:35-45 days after receiving orginal L/C or deposit by TT.

   3.Q: Is it all right to make customer's own brand name?
      A: Yes we supply OEM service. Please send us a authorization doc.

   4.Q: Where is your Loading Port?
      A: Ningbo, Zhejiang, China.

   5.Q: What are your payment terms? For Bulk Quantity Purchase
      A: 30% deposit and balance T/T against copy of Bill of Lading or L/C at sight.
      For Samll amount Trial Order ,Please arrange the full payment

   6.Q: What is your company's available production capacity?
      A: 90000~120000 pieces of  Pressure Tank per month