15 Years Manufacturer Spiral Wound Gasket-R for Qatar Importers

Short Description:

Spiral wound gasket consists of “V-shape”(or”W-shape”)metal tape and nonmetal tape, which are overlapped each other and wound continuously.To fasten the metal tape,both its start point and end point are tack welded. Feature Wide Scope of acceptable working conditions. Can be used under high temperature, high pressure and ultra-low temperature or vacuum conditions. Change the combination of the gasket materials is to tackle the chemical corrosion problem of diverse medi...


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15 Years Manufacturer Spiral Wound Gasket-R for Qatar Importers Detail:

Spiral wound gasket consists of “V-shape”(or”W-shape”)metal tape and nonmetal tape, which are overlapped each other and wound continuously.To fasten the metal tape,both its start point and end point are tack welded.

Feature

Wide Scope of acceptable working conditions. Can be used under high temperature, high pressure and ultra-low temperature or vacuum conditions. Change the combination of the gasket materials is to tackle the chemical corrosion problem of diverse media toward the gasket.

Not very rigid requirements to the surface precision of the flange. May be used to seal flanges with rough surface

Easy installation and handy use.

Excellent Sealability

Products Type

gg

echnical Data Sheet

Product&Type

Size(mm)

Temperature(℃)

Pressure(Mpa)

Spiral Wound Gasket filled with Graphite

 

φ16~φ3200

(In Oxidizing Environment )-240~+550℃;(In non-Oxidizing Environment)-240~+870℃

(Under hot water, oil etc. )30 Mpa; (Under vapor oil, gases etc.)20 Mpa

Spiral Wound Gasket filled with Asbestos

 

φ16~φ3200

-150~+450℃

15

Spiral Wound Gasket filled with PTFE

 

φ16~φ3200

-200~+250℃

15

 Application Area

The Spiral Wound Gaskets are mainly used in valves &pipes, pressure vessel, condenser, heat exchanger flanges in oil, chemical, metallurgy, vessel and mechanical industries.


Product detail pictures:

15 Years Manufacturer
 Spiral Wound Gasket-R for Qatar Importers detail pictures


Related Product Guide:
A Look at the Molded Gasket
Comparison of O-Ring Materials

Dependable good quality and very good credit score standing are our principles, which will help us at a top-ranking position. Adhering towards the tenet of "quality initial, shopper supreme" for 15 Years Manufacturer Spiral Wound Gasket-R for Qatar Importers, The product will supply to all over the world, such as: Turkey , USA , America , As an experienced manufacturer we also accept customized order and we could make it the same as your picture or sample specification. The main goal of our company is to live a satisfactory memory to all the customers, and establish a long term business relationship with buyers and users all over the world.



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    The first blasting cap or detonator was demonstrated in 1745, when a Dr. Watson of the Royal Society showed that the electric spark of a Leyden jar could ignite black powder.
    In 1750, Benjamin Franklin in Philadelphia made a commercial blasting cap consisting of a paper tube full of black powder, with wires leading in both sides and wadding sealing up the ends. The two wires came close but did not touch, so a large electric spark discharge between the two wires would fire the cap.
    In 1822 the first hot wire detonator was produced by Dr Robert Hare. Using one strand separated out of a multistrand wire as the hot bridgewire, this blasting cap ignited a pyrotechnic mixture (believed to be potassium chlorate/arsenic/sulphur) and then a charge of tamped black powder.

    In 1863 Alfred Nobel introduced the first pyrotechnic fuse blasting cap, using mercury fulminate to detonate nitroglycerin.

    In 1868, H. Julius Smith introduced a cap that combined a spark gap ignitor and mercury fulminate, the first electric cap able to detonate dynamite.

    A detonator is a device used to trigger an explosive device. Detonators can be chemically, mechanically, or electrically initiated, the latter two being the most common.

    The commercial use of explosives uses electrical detonators or the capped fuse which is a length of safety fuse to which an ordinary detonator has been crimped. Many detonators’ primary explosive is a material called ASA compound. This compound is formed from lead azide, lead styphnate and aluminium and is pressed into place above the base charge, usually TNT or tetryl in military detonators and PETN in commercial detonators.

    Other materials such as DDNP (diazo dinitro phenol) are also used as the primary charge to reduce the amount of lead emitted into the atmosphere by mining and quarrying operations. Old detonators used mercury fulminate as the primary, and it was often mixed with potassium chlorate to yield better performance.

    Electrical detonators[edit source

    There are three categories of electrical detonators: instantaneous electrical detonators (IED), short period delay detonators (SPD) and long period delay detonators (LPD). SPDs are measured in milliseconds and LPDs are measured in seconds.

    In situations where nanosecond accuracy is required, specifically in the implosion charges in nuclear weapons, exploding-bridgewire detonators are employed. The initial shock wave is created by vaporizing a length of a thin wire by an electric discharge.

    A new development is a slapper detonator, which uses thin plates accelerated by an electrically exploded wire or foil to deliver the initial shock. It is in use in some modern weapon systems. A variant of this concept is used in mining operations, when the foil is exploded by a laser pulse delivered to the foil by optical fiber.
    Electric detonators
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    Dead man’s trigger
    Detonation
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    Detonator (railway)
    Exploding-bridgewire detonator
    Explosive booster
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    electrostatic analysis of triggered spark gaps
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    BAE Systems
    Battelle Memorial Institute
    Czech Technical University
    Eglin AFB
    Florida A&M University
    Johns Hopkins University, Applied Physics Laboratory
    Lawrence Livermore National Laboratory
    Los Alamos National Laboratory
    Loughborough University
    NASA Marshall Space Flight Center
    Sandia National Laboratories
    Science University of Tokyo
    University of Bologna (Italy)
    University of California
    University of Ferrara (Italy)
    Manchester University
    University of Southern California
    University of Western Australia
    US Army Research Laboratory
    US Naval Research Laboratory

    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 Sally from Mumbai - 2016.05.02 18:28
    Timely delivery, strict implementation of the contract provisions of the goods, encountered special circumstances, but also actively cooperate, a trustworthy company!
    5 Stars By Martina from Barcelona - 2015.11.04 10:32

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