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Manufacturer of Welded Flange Gate Valve - Bellow Seal Gate Valve – Nortech

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We believe in: Innovation is our soul and spirit. High-quality is our life. Consumer need to have is our God for Angle type globe valve , EN1074 gate valve , Ball valve manufacturer ATEX , Good quality, timely service and Competitive price, all win us a good fame in xxx field despite the international intense competition.
Manufacturer of Welded Flange Gate Valve - Bellow Seal Gate Valve – Nortech Detail:

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What is Bellow Seal Gate Valve?

Bellow Seal Gate Valve is operated as an obstruction between fluids and the air. At the same time, the valve can prevent fluids leaking to the air and guarantee zero leakage of pipelines.

The bottom of bellows is welded to the valve stem of the bellow seal globe valve to avoid process fluids eroding the valve stem.

Bellow Seal Gate Valve Technical Specifications

NORTECH advantages of Bellow Seal Gate Valve

What is the Static Balancing Valve used for?

1.Metal bellowsseal the moving stem and increase durability of packed stem seal valves

2.Bellow provide a barrier between the stem at its point of entry through the pressure boundary and the process fluid within the valve, to eliminate stem leakage

3.An anti-rotation device is provided in the bonnet to ensure bellow does not get twisted during assembly and disassembly or by vibration

4.Bellow-sealed valves are usually leak tested using a mass spectrometer to detect leakage rates below 1x10E-06 std.cc/sec.

5.Bellow-sealed bonnets are backed up with a standard stem packing set and a leakage monitoring port between the bellows and the packing in order to prevent catastrophic release of hazardous fluid in the event of a bellows leak.

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What is the Bellow Seal Gate Valve used for

This kind of  Bellow Seal Gate Valve is widely utilized in pipeline with liquid & other fluids.

HVAC/ATC

Chemical/Petrochemical

Food and Beverage Industry

Power and Utilities

Pulp and Paper Industry

Industrial environmental protection

bellow gate valve 02
Bellow Gate Valve 6”150lb


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Manufacturer of Welded Flange Gate Valve - Bellow Seal Gate Valve – Nortech detail pictures

Manufacturer of Welded Flange Gate Valve - Bellow Seal Gate Valve – Nortech detail pictures

Manufacturer of Welded Flange Gate Valve - Bellow Seal Gate Valve – Nortech detail pictures


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With our excellent management, strong technical capability and strict quality control system, we continue to provide our clients with reliable quality, reasonable prices and excellent services. We aim at becoming one of your most reliable partners and earning your satisfaction for Manufacturer of Welded Flange Gate Valve - Bellow Seal Gate Valve – Nortech, The product will supply to all over the world, such as: Berlin, Brunei, Croatia, Each product is carefully made, it will make you satisfied. Our merchandise in the production process have got strictly monitored, because it is only to supply you the best quality, we'll feel confident. High production costs but low prices for our long-term cooperation. You can have a variety choices and the value of all types are same reliable. If you have any question, do not hesitate to ask us.
  • The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.
    5 Stars By Deborah from Morocco - 2018.07.12 12:19
    The company can think what our think, the urgency of urgency to act in the interests of our position, can be said this is a responsible company, we had a happy cooperation!
    5 Stars By Claire from Mecca - 2018.06.18 19:26

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