300 Liter Pre-Charged Bladder Expansion Tanks for Fire Protection

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 1000LV)

For Water-Dezhi Series 

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

Technical Parameter   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. 

Welcome To Visit Us 



Please do not hesitate to contact me if you have any questions.