成都特恩达燃气设备-·澳门新葡萄娱乐2234有限公司

I.  Overview:

Chengdu Tenda Gas Equipment Co., Ltd. (hereinafter referred to as Tenda Company) TNDA series potted gas emergency shut-off valve (referred to as gas solenoid valve) is a safety emergency shut-off device for gas pipelines. It can be connected to a gas leak alarm system or to fire control and other intelligent alarm control terminal modules, etc., to realize automatic or manual emergency shut-off of gas sources on site or remotely to ensure the safety of gas pipeline transportation and gas usage. Product complies with GB3836.1 - 2010 "explosive atmospheres of 1 : Equipment General Requirements" and the GB3836. 9 - 20 is 06 "explosive gas environment with electrical equipment of 9 Part : Encapsulation " m " " requirements; this product has a fast Cut-off function, good sealing performance, low power consumption, high sensitivity, reliable operation, easy to use, etc. The valve must be opened manually to meet the safety management specifications and meet the characteristics of accident handling.   

Second, the  model establishment instructions:

 Product structure diagram:

Fourth, the  installation size

V.  Working principle:

This solenoid valve is closed at the factory. When the installation is completed, the power is turned on, and the solenoid valve linkage box gives a close signal after the coil is energized to generate magnetic force and the solenoid valve is closed. After the safety is eliminated, the solenoid valve handle is manually pulled up to open the solenoid valve.   

Six, the  main parameters:

    1.  Applicable gas: natural gas; petroleum liquefied gas; artificial gas.

    2.  Rated voltage: Type A is AC220V ; Type B is AC220V or DC24V .

    3.  Power: Type A standby 1W , action 1W ; Type B DC standby 0W , action 15W , Type B AC standby 0W , action 83W .

    4.  Input method: Type A passive control signal access; Type B power on and off (cannot be powered on for a long time)

    5.  Cut-off time: <1 second.

    6.  Working temperature (environment): -20 ℃ ~ 60 ℃.

    7.  Working pressure: ≤ 1.6M Pa ( see the nameplate for details ) .

    8.  Nominal pressure: 1.6 Mpa .

    9.  Relative humidity: ≤ 93% .

   10.  Explosion-proof mark: Ex mb II T 6 Gb (pouring type). 

   11.  Outlet length: 1 meter.

   12.  Seal material: Ding Qing rubber.

   13.  Valve body material: aluminum alloy.

   14.  Instant working system

   15.  Executive standards: GB3836.1-2010 , GB3836.9-2006 , CJ / T394-2012

Seven  Instructions:

 1.  Valve closing method:

The gas leak alarm system connected to the solenoid valve, fire control and other intelligent alarm control terminal modules send off signals, and the valve closes quickly; in case of emergency, the operator can manually unscrew the dust cover and manually press the valve stem (about 50N ) The valve can also be closed.

 2.  Valve opening method:

  After removing the fault, pull the handle up with manual force to open the valve, and the valve can remain open.

    Note : When opening the valve, if the handle is difficult to pull upwards, use a flat-blade screwdriver to loosen the pressure relief rod counterclockwise to balance the inlet and outlet pressures at both ends of the valve. Tighten the lever clockwise. Avoid brutal operation, so as not to damage the valve opening actuator.

   3. When the valve is cut off, it must be confirmed on the spot. After the hidden danger of the accident is eliminated, the valve can be manually opened to restore power and ventilation.

     Eight,  explosion-proof matters needing attention:

 1. The  reserved length of the cable is 1M ,

 2. The  free end of the cable should be placed in equipment suitable for the environment.

Nine,  installation requirements:

 1. The  valve installation unit shall have corresponding qualifications and be installed in accordance with relevant gas pipeline construction specifications.

 2. It is  recommended to install a manual ball valve in front of this solenoid valve for maintenance.

 3.  This solenoid valve should be installed in a place where it is easy to clean and operate.

 4. It  should be installed in the direction of air flow indicated by the valve body. Horizontal and vertical installations of DN100 and below must be installed horizontally.

 5. The  solenoid valve control wire should be connected correctly and reliably. 

 6. When the  pipeline is purged, it is recommended to isolate the solenoid valve to prevent debris in the pipe from damaging the valve sealing material.

 7.  Before the pipeline is pressure tested to check the sealing performance, the solenoid valve should be opened.

 8. When  opening the valve manually, it should be operated when the inlet and outlet pressure of the valve is balanced.

 9.  Never open the cover with power on. 

 10. When  the free end of the solenoid valve is connected in a hazardous location, it should be protected in accordance with GB3836.1.

 Note: The electrical equipment installed in hazardous locations should meet the requirements of GB3836.15.

Ten,  solenoid valve wiring requirements:

 The wiring of industrial solenoid valve is shown in the figure below. The wiring must be correct, firm and reliable, and the protective measures for wiring must be taken.

Eleven,  valve maintenance:

 It is recommended that users regularly check the valve for opening and closing. If any failure is found, the professional or manufacturer should be notified in time for maintenance .

12.  Attentions for users:

1.  Before installation of the gas solenoid valve, check whether the packaging is intact and whether it is wet, and use a 500 Megohmmeter to measure the insulation resistance. The resistance value should not be lower than 20M Ω .

2.  This solenoid valve only cuts off the path after the solenoid valve. It does not cut off the path before the solenoid valve. Please pay attention to the user and the unit during installation.

3.  If a leak is found, the gas switch quickly and automatically cuts off the gas source. After the fault is removed, open the solenoid valve.

4. The  user shall not disassemble the solenoid valve arbitrarily during use, and shall not knock or bump the solenoid valve at will.

5. During  use, wipe the oil stain on the surface every month and keep it clean.        

6.  Any valve damage or component loss caused by improper storage or illegal construction is not covered by our free warranty.

7.  Whether the valve and pipeline or flange are balanced during installation. There should be no big difference, otherwise it will cause air leakage or damage the valve.

8. The  wiring diagram should be shown in the wiring diagram. Do not wire it incorrectly, otherwise the module will be damaged or the function will fail. The outgoing line should be protected accordingly.

9. After the  valve is commissioned, corresponding protective measures such as rain and frost prevention shall be done.

10. There  should be relevant warning signs on the site, such as: stepping is strictly prohibited, and can only be opened after troubleshooting.

11. When  repairing the valve, please close the front and rear valves first, and cut off the power to the solenoid valve at the same time.

Thirteen,  quality assurance

   Before leaving the factory, Tenda products have undergone strict inspection and conform to relevant national standards or industry standards.

   The company promises that all users who purchase our products will be repaired or replaced free of charge within one year from the date of purchase. Products that are damaged or missing due to the following conditions are not eligible for this free replacement service:

1.  Irresistible accidents, human negligence, improper use, improper installation;

2.  Unauthorized disassembly and modification of the product;

3.  Damage caused by the transportation process; (negotiated with the freight carrier)

4.  Materials or defects in design and manufacturing that cannot be found at the scientific and technological level when the product is put into circulation.

14.  Limitation of Liability

   The user should acknowledge that the product itself has determined the purpose and suitability of purchasing it, and for installation by qualified personnel that is not strictly in accordance with the requirements of this product manual, and use and maintenance of the product by unauthorized technicians, or unauthorized changes or replacement of internal parts The company is not responsible for any problems caused.

   This product manual is published by Chengdu Tenda Gas Equipment Co., Ltd. Due to typographical errors or continuous product updates, the content of this manual may differ from the actual product. These changes are subject to change without notice. For the latest version, please call our company.

  Company Address: No.297 Checheng East Fourth Road , Longquanyi District, Chengdu

  Phone: 028-84828756.

  Fax: 028-84828756.

  Postcode: 610041

  Chengdu Teanda Gas Equipment Co., Ltd. reserves the right of final interpretation.