header image

Welcome to ZOZEN

ZOZEN is one of the best modern boiler manufacturers in China, our products include steam boilers, hot water boilers and thermal oil heaters. ZOZEN boiler is located in Wuxi, covers 150 thousand square meters of production area, equipped with first-class production equipment, passed the ISO9001:2000 international quality system certification. The company gained the " S " and " U " steel seal from ASME of US.

Customer service

If you run into any problems with the boiler, please contact us directly by email or fill out the online service request. We will do our best to resolve any problems you might have within 24 hours.

In case of special condition, ZOZEN will forward your request to one of its partnered sales representatives depending on the country and state. The local maintenance personnel will arrive at the customer site as soon as possible.


BOILER SELECTION CONSIDERATIONS - Cleaver-Broo

2018-8-5 · frequently is referred to simply as "a firetube boiler." Firetube boilers are available for low or high pressure steam, or for hot water applications. Firetube boilers are typically used for applications ranging from 15 to 1500 horsepower. A firetube boiler is a cylindrical vessel, with the flame in the furnace and the combustion

xuyi@zozen.com >

Get A Quote >

New Boiler Cost amp; Boiler Repair Cost in 2019

Combi boilers are typically more expensive up front than traditional boilers, though work out cheaper in the long run than traditional boilers. A new combi boiler will usually range from around £1,800 to over £2,000, including installation fees, which will normally be

xuyi@zozen.com >

Get A Quote >

4 things to look out for in steam boiler pressur

The boiler pressure gauge read 12 psi. The boiler operating pressure control was set for 15 psi. Steam was spewing from the boiler feed vent like an old locomotive. I adjusted the operating pressure control to the normal steam pressure. Within a short time, the boiler operated the way it was supposed to and the building had heat.

xuyi@zozen.com >

Get A Quote >

Combi Boiler System Pressure — Problems wit

First you must lose the pressure on the central heating water side by draining from a drain cock until the system pressure gauge (boiler gauge) shows zero. Don't use the 3 bar pressure relief valve to dump the pressure because, once operated, the seating may become contaminated and it may leak water through the safety pipe afterwards.

xuyi@zozen.com >

Get A Quote >

How to Set Hot Water or Steam Heating Syste

Pressure and Temperature gauge on hot water or hydronic heating boilers: this gauge displays the heating boiler internal pressure and temperature. Typical pressure for a residential boiler serving a two story home would show 12 psi cold, and less than 30 psi hot. Over 30 psi boiler pressure will cause the pressure relief valve to open.

xuyi@zozen.com >

Get A Quote >

How pressuretrol works in steam boiler - Boilersin

The pressuretrol starts and shutdown the boiler according to adjusted pressure it also controls its operating range. For example, an average operating range of a steam boiler may be 240 to 250 psi. When the steam pressure in the boiler drops 10 psi, the boiler will start up automatically. When the pressure reaches to 250 psi, it will shutdown

xuyi@zozen.com >

Get A Quote >

The Average Boiler Life Expectancy | DoItYourself.c

2017-7-6 · The average expectancy of a traditional gas boiler is between 10 and 15 years, if you keep it well maintained and have it serviced annually. Other boilers, such as electrical devices, will last between 8 and 10 years. A superior quality boiler, that is the most expensive available, can be maintained so that it lasts for 20 years or more.

xuyi@zozen.com >

Get A Quote >

Chapter 10: Boilers, Water Heaters and Pressur

This chapter shall govern the installation, alteration and repair of boilers, water heaters and pressure vessels. Exceptions: 1. Pressure vessels used for unheated water supply.. 2. Portable unfired pressure vessels and Interstate Commerce Commission containers.. 3. Containers for

xuyi@zozen.com >

Get A Quote >

Boiler Prices: How Much Does A New Boiler Cost?

2019-11-25 · For a guide price on system boiler installations, we would recommend looking at the regular boiler costs in the table above and adding £200-£400 to cover the additional costs of a system boiler. System boilers are pressurised, so they're great if you live in a home that has poor mains water pressure.

xuyi@zozen.com >

Get A Quote >

Classifications of Boilers - Engineering ToolB

2019-11-29 · According the "ASME Boiler and Pressure Vessel Code" boilers may be classified asSection I Power Boilers - process boilers, power boilers and high pressure boilers. boilers in which steam or other vapor is generated at a pressures exceeding 15 psig ; high temperature water boilers intended for operation at pressures exceeding 160 psig and or temperatures exceeding 250 degrees F

xuyi@zozen.com >

Get A Quote >

Steam and high temperature hot water boilers - Carbo

Steam and high temperature hot water boilers 6 Technology overview Boilers A boiler is a device that converts the chemical energy of a fuel into a useful heat output, such as steam or hot water. The fuel type most commonly used in the UK is gas, but some older coal and oil-fuelled boilers

xuyi@zozen.com >

Get A Quote >