gas fired water tube package boiler natural circular type

gas fired water tube package boiler natural circular type

ZOZEN has built six fully automatic lines for the production of convection pipe, coil pipe, threaded pipe, membrane wall, serpentine tube and header. The parts so produced have consistent dimensions that enable easy assembly and ten years’ extension of a boiler’s life.


1. Convection pipe production line: high precision of ±0.5MM.
2. Coil pipe production line: three pieces of pipes can be coiled at the same time. 114mm diameter pipes are coiled into 4.5 meters coil.
3. Threaded smoke pipe production line: tread depth is accurately measured by infrared radiation to ensure tread depth is proper.
4. Membrane wall production line: MPM automatic welding machine with 12 heads, 1600MM panel bending machine.
5. Serpentine tube production line: 150 meters pipe can be made into economizer or super heater in one time without manual seam.
6. Header production line: by medium frequency electric heating, mechanical flow forming closing and NC drilling.

Our Lastest Boiler Type

Seven Hold Points

Seven hold points are set and each one is supervised by a responsible inspector. Any work that fails to pass the inspection cannot proceed until the inspector is able to verify its quality.

1,Incoming materials are inspected again upon entry into the plant.

2,Material markings will be transferred to all cut pieces to ensure identification and traceability.

3,Test pieces are used to ensure a higher success rate in welding.

Unique structural design

National Precision Bearing offers stainless steel for applications that require corrosion resistance.We have world class manufacuring facilities using latest technology, machines and equipments.

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The objective of this Standard is to protect every workingman against the dangers of injury, sickness or. death through safe and healthful working conditions, thereby assuring the conservation of valuable

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Type of gas. Amount (cubic feet at NTP) Corrosive. 200. Flammable (except cryogenic fluids and liquefied petroleum gases) 200. Highly toxic

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A boiler explosion is a catastrophic failure of a boiler.As seen today, boiler explosions are of two kinds. One kind is a failure of the pressure parts of the steam and water sides. There can be many different causes, such as failure of the safety valve, corrosion of critical parts of the boiler, or low water level. Corrosion along the edges of lap joints was a common cause of early boiler

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Main Ship Equipments | Equipment Types | Main Marine Manufacturers Ship Spare Parts,

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Absolute Humidity The actual weight of water vapor contained in a unit weight of air, expressed in grams per cubic meter in metric system and pounds per cubic feet in English system.

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Educator Crackers. Educator brand crackers were produced in Boston from 1885 through the 1980s. They were a direct early competitor to the National Biscuit Company (aka Nabisco).

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Withdrawn Standards. ANSIZ41-99 American National Standard for Personal Protection - Protective Footwear. A4- Withdrawn 1965: Specification for Medium-Carbon-Steel Splice Bars

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Neat Patents - redr

lancaster * You Don't Really Want A Patent, Do You? * Don Lancaster's Patent Avoidance Library. Don discusses many of the pitfalls of obtaining and keeping patents. He makes a convincing argument that there is no need for obtaining a patent unless the

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BACKFLOW, WATER DISTRIBUTION.The flow of water or other liquids into the potable water-supply piping from any sources other than its intended source. Backsiphonage is one type of backflow.. BACKPRESSURE.Pressure created by any means in the water distribution system, which by being in excess of the pressure in the water supply mains causes a potential backflow condition.

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Dear Twitpic Community - thank you for all the wonderful photos you have taken over the years. We have now placed Twitpic in an archived state.

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A type of stucco made from acrylic resins and/or polymers, with crushed quartz and sand to give it definition. An acrylic stucco finish looks very similar to a traditional stucco finish.

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The Taco 2400 - 1/2 HP - High Capacity Circulator Pump - Cast Iron - 4-Bolt Round Flange 2400-70/3 has been discontinued. Check out Expert's recommended alternatives for another top boiler system accessory.

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The objective of this Standard is to protect every workingman against the dangers of injury, sickness or. death through safe and healthful working conditions, thereby assuring the conservation of valuable

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Thermal expansion is the tendency of matter to change its shape, area, and volume in response to a change in temperature.. Temperature is a monotonic function of the average molecular kinetic energy of a substance. When a substance is heated, the kinetic energy of its molecules increases. Thus, the molecules begin vibrating/moving more and usually maintain a greater average separation.

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