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Domestic hot water and heating series: gas hot water boiler, vacuum hot water boiler, vertical atmospheric pressure hot water boiler, electric hot water boiler Factory use, high temperature steam: wns fuel gas steam boiler, szs water tube steam boiler, vertical steam boiler, electric steam boiler

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FANGKUAI is founded in 1998, which is a clean fuel boiler enterprise integrating R&D, manufacturing, sales and service. In the past 20 years of development and innovation, the company has grown into a global enterprise, and its products have been exported to more than 80 countries including Russia, Mongolia and Thailand, and have established long-lasting cooperative relations with local enterprises!

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When a boiler gauge glass breaks which valve do you close

  • Offshore price : $20000-$100000 Get a quote on the right form
  • Minimum order quantity : 1 set :When a boiler gauge glass breaks which valve do you close
  • Supply Capacity : 10 units/month :When a boiler gauge glass breaks which valve do you close
  • Manufacturer/Brand : Fangkuai boiler
  • Port : Anyang
  • payment terms : Letter of Credit, Wire Transfer, VISA

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Popular products


θrion Gas Fired Steam Boiler


Rated thermal efficiency: 100-104%

Fixed working pressure: ≤1.6MPa

Applicable fuel:natural gas etc.


Gas(oil) Fired Integrated Hot Water Boiler


Rated thermal efficiency:96-98%

Fixed working pressure:≤1.25MPa

Applicable fuel:Natural gas, light oil, etc.


H6 Gas Fired Hot Water Boiler


Rated thermal efficiency: 97.2-106%

Fixed working pressure:0.1MPa

Applicable fuel:Natural gas, etc.


T7 Vacuum Hot Water Boilerr


Rated thermal efficiency:≥105.5%

Fixed working pressure:-0.02MPa

Applicable fuel:Natural gas, etc.


V6 Gas Fired Hot Water Boiler


Rated thermal efficiency:97.2-104.4%

Fixed working pressure:1.0MPa

Applicable fuel:Natural gas, etc.


Electric Steam Boiler

Capacity:0.5-4.0 t/h

Rated thermal efficiency:98%

Fixed working pressure:≤1.25MPa

Applicable fuel:electric energy


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  • Dirty sight glass water, reversed valve, and bobbing water

    Jan 25, 2011 · Gauge glass valves MUST ALWAYS BE OPEN except when changing the glass or blowing out the passages. Very few residential steam boilers will have a "real" valve on the gauge glass drain but will instead have a "petcock" (I hope that word gets past the auto-censor) that will make it all but impossible to open and close when the boiler is steaming.Get Price

  • Boiler Controls—Testing and Maintenance - FMLink

    Simulate a developing low-water condition in the boiler by shutting off the feed pump and feeder valve supply. Allow the boiler water level to drop. This can be sped up by opening the blow-off valve. Observe the gauge glass. The water level should never go …Get Price

  • Sight glasses & rain | Page 2 | Smokstak® Antique Engine

    Steam Boiler Sight Glass FAQs Use, Fix, Repair the Sight GlassGet Price

  • Unit 3 Boiler Safety devices Flashcards - Quizlet

    what protects the boiler from draining if the gauge glass breaks? when do you close the drain on the gauge glass after replacing. when at operating temperature. when a single safety valve is used on a heating boiler, it nust have sufficient capacity that, the pressure cannot rise more than _____ % above the MAWP Get Price

  • How do I get a boiler license in Washington state

    Water-gauge glass. How much should a boiler service cost? A gas boiler annual servicing contract includes cover if your boiler breaks down. They are normally priced between £150 and £250. A one-off boiler service will cost you between £60 and £120 generally – local companies are usually cheaper than national companies.Get Price

  • What happens if you put too much water in your boiler?

    The pressure on your boiler's gauge will increase when the heating is running. But, your boiler shouldn't rise more than 1 bar during its heating cycle. If your boiler heats up more than 1 bar (or close to 1 bar) during start up, there's a good chance there's a fault with the expansion vessel or pressure release valve.Get Price

  • I have a Utica Boiler. The water in my sight glass does

    Sep 19, 2013 · or the make up water valve fills the boiler back up to half glass again. Then close the boiler drain valve at the bottom of the boiler. Do not let the water level get closer than 1 inch to the bottom of the glass. If you get me the model number of the boiler and tell me if it is supply stream or hot water to the radiators i can be a bit more Get Price

  • What Causes Boilers To Explode - SeniorCare2Share

    How do you ensure a boiler is safe? Boiler operators and technicians should pay close attention to three key safety devices to protect personnel, equipment, and the facility: Safety valves. The safety valve is the most important safety device in a boiler or domestic hot-water system. Water-level control and low-water fuel cutoff. Water-gauge glass.Get Price

  • Boiler Alarms And Trips | 5 Common Boiler Safety Devices

    Mar 01, 2018 · 4. Pressure Gauge. Other than the safety valve and various alarms and trips installed. It is the various gauges primarily pressure gauge that helps in the safe operation of the boiler. There are various pressure gauge installed on a boiler assembly to check and monitor steam pressure. Modern pressure gauge is also fitted with built-in cut off Get Price

  • Boiler Mountings And Their Function - Complete List

    Aug 05, 2018 · Boiler mountings are a set of safety device installed for the safe operation of a boiler. There are seven main mountings on a boiler shell; safety valve, steam stop valve, vent valve, pressure gauge, water level indicator, feed check valve and fusible plug. These equipment save the boiler from damage due to extreme pressure, steam back flow Get Price

  • GUIDE QUESTIONNAIRES for seafarers

    22. A solenoid valve in the boiler fuel oil supply line will close when the _____. 23. Which device can be used to secure or hold furnace refractory in position? 24. Two-element feed water regulators operate by sensing _____. 25. What is the most probable cause if the gage glass water level remains constant in a steaming boiler while Get Price

  • Steam Boiler Gauge Sight Glass Replacement - YouTube

    On this edition of the Boiling Point, Ritchie Ware joins shop foreman Jerry Hunley to learn step-by-step how to replace gauge glass. Jerry also explains how Get Price

  • Boiler sight glass change or clean: Steam Boiler Sight

    Boiler sight glass change or clean: Steam Boiler Sight Get Price

  • Steam Boiler Sight Glass FAQs Use, Fix, Repair the Sight …

    Steam Boiler Sight Glass FAQs Use, Fix, Repair the Sight GlassGet Price

  • Your guide to safer boiler operation

    Nov 15, 2010 · On ANY steam boiler the upper and lower gauge glass valves MUST ALWAYS BE OPEN AT ALL TIMES except when changing the glass or testing that the upper and lower passages are clear. Since I have a history of first time posters not returning I'll wait until you post again before detailing the answers to your next set of questions. Upvote # 3Get Price

  • Sight Glass Check Valve - Boiler and Pressure Vessel

    Dec 15, 2015 · Standard gauge cocks used for mounting sight glasses have a ball check valve in them, so if the glass breaks, the contents of the vessel don't go spewing out. The problem we're seeing with this setup is that the ball check valve, (and the needle valve as well), will quickly become clogged and inoperable, rendering the sight glass useless.Get Price

  • Chapter 60 - Water Columns and Gauge Glasses …

    – While the boiler is in operation, shut off the feedwater pump and slowly open the bottom blow valve to drain the water from the boiler. The low-water cutoff should shut down the burner before the water level goes out of sight low; if the burner does not shut off, restart the feedwater pump before the water levelGet Price

  • Free Flashcards about Low pressure boiler - StudyStack

    False. A modulating pressuretrol controls: The boiler's high and low fire. A modulating pressure control is sensitive to: Pressure. The basic function of snow automatic feedwater regulator on a boiler is to: Maintain proper water level. A boiler with water surrounding the outside of the tubes is called a ________ boiler.Get Price

  • Boiler Mountings and Accessories [Details with Video lecture]

    Water level indicator: The water level indicator located in front of the boiler in such a position that the level of water can easily be seen by the attended.. There are two indicators: A water level indicator consists of a metal and a strong glass tube with marking.The upper and lower ends of these tubes are connected to two gunmetal hollow pipes. The upper pipe has a steam valve …Get Price

  • Sight Glass Check Valve - Boiler and Pressure Vessel

    thank you for your swift response. i will have to check on the clearance, fit and seals. broken fragments show a decrease in tickness of the glass wall which i think leads to its eventual failure. then i guess that is caused by the high pH and chloride content like btrueblood put it. do total dissolved solids play a part since these can be controlled by frequency of blowdown because i …Get Price

  • Boiler Safety - Occupational Safety and Health Administration

    Water Column And Gauge Glass Blowdown. The water column is blown down first and then the gauge glass to remove any sediment. Water should enter the gauge glass quickly when the gauge glass blowdown valve is closed. 8-When blowing down the water column and gauge glass, the operator should carefully monitor the action of the water in the gauge glass.Get Price

  • What you should know about the Hartford Loop - Heating Help

    Jun 24, 2014 · Generally, you should connect the close nipple about two inches below the bottom of the gauge glass, but check the boiler manufacturer's specs on this. The centerline of the close nipple has to be below the waterline, but above the boiler's crown sheet.Get Price

  • Low Water in Boiler - Wet Steam Likely — Heating Help: The

    No auto feeder. Boiler has never build any pressure during normal burns (got a 0-3 psi gauge on there). One time I ever saw it build pressure was during storm last year and it was running for a good hour, still only .5 psi max. I have noticed water slow to return to boiler. Most times, boiler shuts off after 15-20 minutes because LWCO trips.Get Price

  • boiler water gauge glass failure analysis - Material

    The two knobs, one at the top and one at the bottom of the sight glass or water level gauge on a steam boiler are there to let you turn OFF the water from being able to enter the sight glass. You'd close both of these knobs (they're actually small water shut-off valves) by turning them fully clockwise (for most valves but you may need to test yours) if, for example, your 10 year old, …Get Price

  • The Boiler House - Spirax Sarco

    Open or close a valve. Sound an alarm. Open or close a relay. But a single tip can only provide a single or point action. Thus, two tips are required with a conductivity probe in order to switch a pump on and off at predetermined levels, (Figure 3.16.4). When the water level falls and exposes the tip at point A, the pump will begin to run.Get Price

  • Miniature Steam Locomotive Management - Locomotives

    Fill the boiler up to near the top nut on the glass by a convenient means and use the blower to raise the pressure close to safety valve lifting pressure, then close the blower and drop the fire. Be careful of the hot coals, some societies provide troughs to catch the cinders.Get Price

  • Purging Air in Hydronic Heating Lines - Fine Homebuilding

    Nov 09, 2018 · Watch the boiler's pressure gauge as you do this; it should read between 12 psi and 15 psi. Lift the manual override lever on the regulator slightly to allow fresh water into the system, but don't flip the override lever all the way over—just let in a little extra water at a time to keep the system's pressure within normal bounds.Get Price

  • Boiler Operation & Boiler Maintenance | HSB Locomotive

    Often, a boiler is operated with the isolation valves to the gage glass closed because the glass has been broken, or is leaking. Take the time to replace the glass, even if the boiler must be shut down. That inconvenience is nothing compared to the damage that may result from operating a boiler without a gage glass.Get Price

  • What is a sight glass on a boiler for? -

    Gauge glass are mainly used in boiler of the ship. How do you remove a sight glass from a boiler? How to Clean a Boiler Glass Gauge. Close top and bottom gauge valves, but open the drain valve beneath the column. Open the top gauge valve just a fraction, so that steam pressure blows all of the water out of the drain line, leaving only steam Get Price

  • How know if glass guage valve open or closed on furnance

    Steam Boiler Sight Glass FAQs Use, Fix, Repair the Sight GlassGet Price

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