fire tube boiler have stop valves in their inlet and outlet piping

fire tube boiler have stop valves in their inlet and outlet piping

ZOZEN's main products include industrial boilers, power station boilers, waste heat recovery devices (HRSG), special waste heat boilers, pressure vessels and other five series with more than 400 varieties of specifications, mainly classified as: 10 ~ 220 t/h series power station boilers; SHL series bulk coal-fired Steam and hot water boilers; SZL series pipe assembly boilers; DZL series shell boilers; WNS series, SZS series of oil/gas fired boilers; YLL series of coal-fired thermal fluid heater; YYW series of fuel gas thermal fluid heater; biomass fuel boiler steam and gas combined cycle waste heat boilers, special waste heat boilers and so on.


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.

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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All Plumbing Terminology - The Plumbing In

Access Panel -A covered opening in wall made near a plumbing or electrical fixture to allow access for maintenance.In plumbing an access panel would hide control or shut off valves or cleaouts for rodding plumbing fixtures. Acid Dilution Basin – A plumbing appurtenance connected to waste piping servicing a part of a building receiving corrosive or acid waste.

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Rotating Equipment - EP

Date : Replies: 25/10/2018 Q: At a compressor's steam turbine, frequent vibrations are faced at Journal bearings. The vibrations go from normal 13microns to about 45 microns.

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Texas Boiler Administrative Rul

This is the Boiler Safety Adopted Rules page for the Boiler Safety program administered by the Texas Department of Licensing and Regulation.

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Navien Problems and Issues - Tankless Heate

Posted on Mar 18, 2010 | 104 comments [Update] The early generation Navien tankless systems have had some definite issues So much so we completely stopped selling them around 2009. For the most part Navien did a good job helping customers and dealers fix and repair the mistakes in their past units.

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Welcome to Petroleum and Natural Gas Regulator

PETROLEUM AND NATURAL GAS REGULATORY BOARD. NOTIFICATION. New Delhi, the 12th February 2016. G.S.R.Infra/ T4S/ P;PPPL/01 /2014. -In exercise of the powers conferred by section 61 of the Petroleum and Natural Gas Regulatory Board Act, 2006 (19 of 2006), the Petroleum and Natural Gas Regulatory Board hereby makes the following regulations, namely:- 1.

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PIPING LAYOUT | PIPING GUI

Piping is a major expenditure in the design and construction of industrial, refinery, petrochemical, or power-generating plants when one considers engineering costs, material costs, and fabrication and field labor costs.

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Navien Problems and Issues - Tankless Heate

Posted on Mar 18, 2010 | 104 comments [Update] The early generation Navien tankless systems have had some definite issues So much so we completely stopped selling them around 2009. For the most part Navien did a good job helping customers and dealers fix and repair the mistakes in their past units.

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Welcome to Petroleum and Natural Gas Regulator

Note*:Please refer and abide by the Gazette as Reference Copies/Consolidated Regulation are for user convenience only. In case of any discrepancy, Gazette shall be deemed absolute/authoritative.

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Chapter 6: Water Supply and Distribution, Californi

UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction.

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Ship supplier of anchor,anchor chain,wire ropes,valv

Anchor windlass is a large deck on the ship machinery, used to receive, put anchors and anchor chains. Windlass is usually installed in the ship stern first on the main deck for the ship weighed anchor, anchor mooring during the event.

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Chapter 6: Water Supply and Distribution, Californi

UpCodes offers a consolidated resource of construction and building code grouped by jurisdiction.

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Tauras 60 Solar | Gas Compressor | Gas Turbi

TAURUS 60. Turbomachinery Package Specification Oi l ; Gas Appl i cat i ons Compressor Set and Mechanical Drive TURBOMACHINERY PACKAGE SPECIFICATION

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Building A Model Boiler - A Laymans Guide To Stea

Building A Model Boiler. A Layman’s Guide To Steam Fittings. Steam fittings are generally made of brass, usually being cast and then machined to shape, although they can be fabricated by an individual if he chooses.

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Deck Safety and Environmental Questions fro

Click Here to Enter SeaSources Online USCG License Prep Site: This page is just a preview of the new Coast Guard question database. To test yourself on

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Hydroprocessing - EP

Date : Replies: 05/11/2018 Q: What would be the effect of fluctuation in regeneration gas flow in UOP Cyclemax Regenerator if my flow is having variation by 5-8%??

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How to Repair a Leaking Water Heater Pressure Relie

Pressure relief valves sometime develop a drip when opened for the first time in years. Try opening and closing it a few times to see if it will seat itself. If you have a large leak or the drip doesn’t stop on its own in a day or two, the valve will need to be replaced. Whether you can replace it

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Titanic’s Propulsion Pla

The turbine was a direct-coupled type, meaning that its rotor was directly coupled to the propeller shaft without any reduction gearing. It was also a multistage reaction type turbine in which there were alternating rows of fixed blades and moving blades.

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What is the Purpose of Minimum Flow? - ekwestrel co

I have more than 40 years’ experience in the pump industry. During my 32 years with Flowserve, a global pump manufacturer, I was active in Research ; Development, marketing and sales support, manufacturing operations, field retrofits, troubleshooting and

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How to Repair a Leaking Water Heater Pressure Relie

Pressure relief valves sometime develop a drip when opened for the first time in years. Try opening and closing it a few times to see if it will seat itself. If you have a large leak or the drip doesn’t stop on its own in a day or two, the valve will need to be replaced. Whether you can replace it

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FAQs - Support - Dormo

The first advantage is strength. Stainless steel is an extremely strong metal. It delivers superior performance vs. brass in a wide range of standard performance tests – including greater tensile, torsion, hydrostatic and axial strength.

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What is the Purpose of Minimum Flow? - ekwestrel co

I have more than 40 years’ experience in the pump industry. During my 32 years with Flowserve, a global pump manufacturer, I was active in Research ; Development, marketing and sales support, manufacturing operations, field retrofits, troubleshooting and

Contact us