+
  • TGV725.jpg

TGV725


The gas combination valve is specially developed for commercial heating boiler, condensing boiler and premix burner. Products are widely used in hotels, schools, hospitals, government institutions, regional distributed heating gas boilers.
图片名称

Support hotline:


Category:

Gas Control Valve


  • Product Description
    • Commodity name: TGV725

    The gas combination valve is specially developed for commercial heating boiler, condensing boiler and premix burner. Products are widely used in hotels, schools, hospitals, government institutions, regional distributed heating gas boilers.

    725

    Combination Gas Valves  TGV725

    The gas combination valve is specially developed for commercial heating boiler, condensing boiler and premix burner. Products are widely used in hotels, schools, hospitals, government institutions, regional distributed heating gas boilers.

     

    Use

    • 2 shutoff valves

    • Servo pressure regulator

    • Inlet/outlet pressure test points

    • All adjustments are accessible from the top of valve

    • A fine-mesh screen is integrated at the inlet side

    • Compact design suitable for installation in small modern boilers and heaters

    • Specially designed for gas appliance with DBI system to light the main burner

    • Servo pressure regulator ensures stable outlet pressure

    • Pressure feedback ensures constant burner pressure

    • Pressure switch to prevent tempering under low pressure.

    • Main gas flow throttle valve regulates gas / air 1:1

     

    1Warning notes 

    To avoid injury to persons, damage to property or the environment, following warning notes must be observed!

    Do not open, interfere with or modify the valve!

    • All activities (mounting, installation, service work, etc.) must be performed by qualified staff

    • Before performing any wiring changes in the connection area of the EBR…, completely isolate the unit from the main supply (all-polar disconnection)

    • Ensure protection against electric shock hazard by providing adequate protection for the connection terminals.

    • Check to ensure that wiring is in an orderly state

    • Fall or shock can adversely affect the safety functions. Such valves must not be put into operation even if the unit does not exhibit any damage

     

    Mounting notes

    The parallel displacement regulator regulates the air/gas ratio

    • Check the inlet and outlet pressure using the pressure test points provided

    • Remove the protective cap

     

    1

    • turn the screw (white) clockwise to increase the outlet pressure

    • turn the screw (white) counterclockwise to decrease the outlet pressure

    • Ensure that the outlet pressure is correctly adjusted before replacing the protective cap

     

    1

    Regulate the main gas flow throttle valve

    • turn the screw counterclockwise (yellow) to increase outlet flow

    • turn the screw (white) clockwise to decrease the outlet flow

     

    1

     

    Installation notes 

    Main gas connection

     

     

    • To prevent distortion and/or damage of the external thread, take carenot to tighten the pipe fitting too far

    • Ensure that the gasket is properly placed in the right position

    • Ensure that the gas flow is in the same direction as the arrow on the valve body

    Pressure test points

     

    • The valve is provided with an inlet and outlet pressure test point

    • When checking the pressure, undo the screw one half turn and slip the tube over the nipple

    Note

    Make sure the screw is retightened after making the test.

    Electrical connections

    Warning  

     

    Switch off power supply before making the electrical connections. Wiring must be in accordance with local regulations. Follow the instructions supplied by themanufacture.

    • Install power in accordance with the required pin connection (refer to Function)

    • When making connections to the terminals of the valve, use wires and  connectors which are suited for temperature up to 105℃

    Checkout and Installation

     

     

    • After each adjustment, put the control into operation, run it

    • through several complete cycles and check to ensure that all

    • burner components function correctly

     

    Technical data  

    General unit data

    Models

    TGV725

    Mounting position

    Installation at any angle

    Type of gas  

    LNG、LPG

    Gas inlet pressure

    Max100mba

    Working voltage 

    220VAC,50/60H

    Operating voltage tolerance

    gas valve operates correctly  between 85% and 110% of the rated voltage   

    Cut off valve rated power

    44W

    Cut off valve start rated current

    100mA

    Coil insulation grade

    class F

    Degree of protection

    IP40

    Inlet filter

    no60 fine mesh

    Operating temperature environment

    -15-60℃

    Regulating ability

    Min 0.31m3/h air

    Outlet pressure range for modulating

    1-15 mbar

    Valve class

    -1st safety shutoff valve

    -2nd safety shutoff valve

    EN126

    class A

    class A

    Class of regulator

    class C EN88

    Closing time of safety shutoff valves

    within 1S

    The temperature rise of the coil

    △T≤75℃

    Control pressure connection mode

    4mm outer diameter trachea

    Weight

    approx. 4600g

     

    Technical data

    Environmental conditions

    storage

    Climate condition

    Mechanical condition

    temperature range

    humidity

    DIN EN 60 721-3-1

    1K3 

    1M2 

     -30...+70℃

    <95% r.h.

    transport

    Climate condition

    Mechanical condition

    temperature range

    humidity

    DIN EN 60 721-3-2

    2K2

    2M2

    -15...+60℃

    <95% r.h. 

    operation

    Climate condition

    Mechanical condition

    temperature range

     

    humidity

    DIN EN 60 721-3-3

    3K5

    3M2

    0...+60℃

    -15...+60℃

    <95% r.h.

    1Condensate and ice water are not allowed to enter valves.

     

     

    Function

    Pin connection

    1

    Note:

    The coils for safety shutoff function of EBR... gas valve are DC type

     

    Function

    Cutaway view

    1

    Legend       

     

     

     

     

     

     

     

    1  1st shutoff valve(class A)         

    2  valve body                     

    3  Proportional component                   

    4  Throttle hole                    

    5  ratio control               

    6  Limit screw                   

    7  2nd shutoff valve(class A)                

    8  Gas / air conditioner

     

    Dimension

    In millimeters

    111

    Keywords:
    • Gas Control Valve

Recommended Products

Online message

Submit