Pre-Charged Thermal Expansion Tank for Water Heater

• Customization: Available
• Material: Steel
• Structure: Single Hole
• Model NO.: TY-06-60L-10-002
• Surface Treatment: Epoxy Coating
• Style: Modern
• Outlet Style: Buttom
• Opening Way: Pressure Switch
• Pull Out Spray: Without Pull Out Spray
• Number of Handles: None
• Function: Protect Closed Water Heating Systems
• Purified Water Outlet: Without Purified Water Outlet
• Hot and Cold Water: Hot and Cold
• 360 Swivel: Not Rotatable
• Installation Type: Bottom Intsalled
• Tank Diameter: 450 mm
• Tank Height: 750 mm
• Weight: 12.7 Kg
• Minimum Operatin: 99 Deg
• Maximum Operating Pressure: 10 Bar
• System Suitability: Suitable for All Types of Potable Water System
• Water Entry Connection: 1/2, 3/4, 1, 11/4, 11/2 Inch
• Mount Type: Free Standing (Customized Leg)
• Pre Charge Bar Rating: 1.9 Bar
• Type of Membrane: No Toxic Interchangeable Bladder Membrane
• External Finishing Colour: Multi Color
• Tank Body: Epoxy Powder Coating
• Inlet Connection: Electroplating Flange
• Pre-Charge: Nitrogen Gas
• Range Description: Water Dezhi Series
• Transport Package: Paper Box
• Specification: 10/16/20/25/35 BAR Wroking Pressure
• Trademark: Aqualeader/Dezhi
• Origin: China
• HS Code: 9032900090
• Production Capacity: 1200 Units Per Day

Product Description

How a Expansion Tank Works







Company profile 

Taizhou Tianyang Electrical co., LTD. Is located in Shangma industrial Zone, Shitang Town, WenlingCity, Zhejiang rovince, 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 0.15 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.  

I would like to take this opportunity to introduce our company to you. I am contacting you on behalf of Taizhou Tianyang Electrical Co., LTD.

We are the factory from China for making Pressure Tanks for Fire Protection, Residential Water and Irrigation, Sport Turf and Landscape Irrigation, Agriculture and Horticulture Irrigation, Water Filtration, Treatment & Recycle, Solar and Stock Water System, Rain Water Harvesting, Pump Systems. Based on ISO quality management system, we have obtained CE, KC, ISO 9001, ISO14001, OHSAS 18001, SGS, Water Mark, and Wras Certificates for our company & our Pressure Tanks. Welcome to visit Taizhou Tianyang Electrical Co., LTD when it is more convenient for you. 



Basic Introduction 

The pressure vessel is designed to provide a storage facility and pressure reservoir for water at temperatures up to 99ºC. Common uses are in water booster sets, heating pressurisation and fill sets. The vessel incorporates a replaceable Butyl diaphragm mounted in a mild steel shell. This method of construction eliminates any contact between the stored water and the steel shell of the vessel, and is therefore suitable for use with potable water. All units up to and including 25 litre sizes are suitable for a working pressure of 8 bar, larger vessels 10 bar, (except 1000L)

For Water-Dezhi Series 

Vessel with internal membrane preventing water contact with the steel shell, stopping internal corrosion.

Vessel can be serviced without being removed due to replaceable membrane.

Vessel has pre-charged valve for topping up air pressure.

Interchangeable membrane pressure tanks.

Membranes suitable for drinking water and can be installed to any type of pump.

WRc approved and built to 97/23/EC

TY-11 & TY-14 Series for potable hot water are manufactured to comply with UK water regulations and are tested and certified by WRAS.

For Water-Dezhi Series 

Supplied with a replaceable membrane which separates the water and air, to prevent contamination of the water system, corrosion of the pressure vessel or pressure loss in the water system.

Typically pressure vessels are used in pumped systems. When the pump starts, the pressure inside the vessel begins to increase. Once the vessel is full and the pump has reached its high pressure setting it will switch off. When water is then drawn off from the system the air pressure surrounding the membrane will force the water out of the pressure vessel and into the system. Once the membrane is fully deflated and the system has reached its minimum pressure, the pump will start on its low pressure setting and will begin the cycle again.

The purpose of this system is to prevent constant cycling of the pump and continuous running when the system is being used.

One of the main purposes of an expansion vessel is to compensate for the increase in volume of water due to the varying water temperatures in hot water systems. When water is heated it expands and as water is not compressible this increased volume will create a rise in pressure within the system.

As an example: water being heated from 0°C-100°C will increase by approx 4.5%.

The expansion vessel allows for this extra space, as when water temperature increases the membrane inside the vessel expands to allow the water to fill the vessel. The membrane will continue to expand until the system reaches its maximum temperature.

Once this has been reached the membrane will be fully expanded and takes up the capacity of the vessel shell. Gradually the temperature will drop, which will in turn decrease the volume of water. Due to the pressure from the pressurised air surrounding the membrane water will start to exit the vessel until the membrane is contracted.

Technical Parameter  

Model	Tank Volume	Maxi Working Pressure	Diameter	Height	Connector	Package (Paper Box)	Export Packing Size
x	Liter	Bar	mm	mm	Inch	cm	Non-fumigation wooden case/Or Pallet
TY-04-5L	5	10	160	300	1	17x17x31
TY-04-8L	8	10	200	340	1	20x20x34
TY-04-12L	12	10	270	350	1	27x27x35
TY-04-19L	19	10	270	410	1	27x27x41
TY-04-24L	24	10	270	460	1	27x27x46
TY-06-36L	36	10	350	560	1	35x35x56
TY-06-50L	50	10	350	830	1	35x35x83
TY-06-60L	60	10	450	750	1	45x45x75
TY-06-80L	80	10	450	890	1	45x45x89
TY-06-100L	100	10	450	940	1	45x45x94
TY-06-150L	150	10	450	1100	1	45x45x110
TY-07-180L	180	10	560	1000	1	56x56x100
TY-07-200L	200	10	650	970	1	65x65x97
TY-07-300L	300	10	720	1260	1	72x72x126
TY-07-500L	500	10	750	1500	1	75x75x150
TY-07-750L	750	10	750	1800	1	75x75x180
TY-07-1000L	1000	10	1000	1800	1	100x100x180
TY-07-1500L	1500	10	1100	2000	1	110x110x200
TY-07-2000L	Please refer to customized Model Or Contact Mr.Tom Lee (Export Models Only)
TY-08-8L	8	10	240	330	1	25x25x34
TY-08-12L	12	10	270	340	1	29.5x29.5x35
TY-08-19L	19	10	410	290	1	29.5x29.5x41
TY-08-24L	24	10	460	290	1	29.5x29.5x46
TY-08-36L	36	10	380	490	1	38x38x50
TY-08-50L	50	10	380	560	1	38x38x57
TY-08-60L	60	10	480	490	1	48x48x50
TY-08-80L	80	10	480	630	1	48x48x64
TY-08-100L	100	10	480	720	1	48x48x73
TY-08-150L	Please refer to customized Model Or Contact Mr.Tom Lee (Export Models Only)
TY-08-200L
TY-08-250L
TY-08-300L
TY-08-400L
TY-08-500L
TY-08-600L
TY-08-750L
TY-08-1000L
TY-08-1500L

Regarding Installtion 

The vessel is supplied pre-charged with air, but this pressure may require adjustment to suit the site conditions. This adjustment must be made with the vessel isolated from the system, and before filling with water. Air may be vented from, or pumped into, a patent valve which will be found under a black plastic screw-off cover on the shell (sizes up to and including 500 litre) or on a side mounted flange (750 and larger). It will be noted that vessels of 60 litre capacity or larger are manufactured with connections at either end of the vessel shell. The vessel should be mounted so that the system connection is made at the lowest possible point, to facilitate on-site maintenance. The other connection may be fitted either with a air bleed valve, or alternatively with a blanking plug. All pressure vessels should be installed with an isolating valve and drain cock.

Periodic Maintenance

The only maintenance required on this equipment is a periodic check on the air cushion pressure. It is necessary to isolate the vessel from the system, and to drain all water from the tank before making this measurement with a standard tyre pressure gauge from the  valve.

Maintaince free models are also available,Please refer to customized Model Or Contact Mr.Tom Lee (Export Models Only)




FAQ Details:  

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: 7-25 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: 50000~60000 pieces of Pressure Tank per month.