Langfang Zhongyide Petroleum & Gas Equipment Co.,Ltd

hebei, China

Pipeline casing insulator is used for protecting the external coating and insulate oil & gas pipeline from the surface of the earth. It is widely used in pipeline construction directional traversing --- roads, railways, rivers as well as all kinds of pipeline construction projects which need to be insulated. The material is hdpe which has the features of high insulativity, abrasion resistence and impact resistance. All materials used are tested to meet astm standards. applicable pipeline diameter range is from 38mm to1670mm, and we can also provide special specifications according to customer requirement. it has following advantages: 1. Wide variety of runner height to allow numerous options for pipe positioning within the casing; 2. Spacers slide into casing with ease; 3. Quickly and easily assembled by manually fitting elements one into the other, 4. Environmentally friendly; 5. Spacers maintain continual long term support for the carrier; 6. No special tools required for installation.

• MOQ 1 Set(s)

We are offering cathodic protection testing pile. Zdjs cathodic protection testing pile is a kind of new product designed by our company, combined with many years of pipeline experts experiences, considerring the specific requirements of pipeline construction, on the basis of previous generation products, which has the advantages such as anti-theft, strong, durable, beautiful and so on besides the previous generations. applicable scope: it can be used for cathodic protection in the open field for the buried metal pipelines of different medias such as natural gas, liquefied petroleum gas, oil, product-oil, coal gas, chemical as well as hydraulic engineering and water supply engineering, and so on. It can also be used for the buried metal pipeline networks in the cities. cement cathodic protection test piles are mainly custom-made on customer requirements. It is generally used in the places where piles are easily to be stolen. Cement cathodic protection test piles are anti-theft, strong, durable, beautiful for they are not valuable comparing the metals which are often stolen.

Heshan pipeline set-on weights are our most versatile and popular bag weights. It is used to control the buoyancy of the pipeline when it traverses the river, lake, marshland, or swamp. It introduce the latest advanced pipeline laying technology, and it adopt environmental production material (polypropylene) with special production engineering. It is manufactured strictly according to the iso9001:2008 quality management system, the whole process including procurement, production, inspection, storage, transportation, after-sale services is controlled by special management department and technical professor. it has following advantages: 1. Low price---use the local gravel as ballast, reduce the handling and transportation costs; no need of heavy equipment for installation which can reduce the equipment cost; 2. Short lead time, fast construction time; 3. Easy to install, store and remove; 4. Environmental production, it is corrosion & acid-base resisting and has no pollution to the water. It dose not produce any biodegradation and has the same permeability with the gravel. And it has no limitation to the cp system shielding; 5. Soft buoyancy control, allow the slightly moving of the pipeline, and there is no friction contact with the surface of the pipeline which can protect the outer coating perfectly. 6. The effective eight under the water is higher than the equivalent concrete weight, so the lean problem will not arise.

Functions s a dc insulation and ac coupling device(decoupler), re is used for preventing the flow of the cp current up to a predetermined voltage threshold, while passing any induced ac current. For voltage that attempts to exceed the threshold, the device instantly switches to the shorted mode, providing over-voltage protection. this stray current is normally caused by ac fault current or lightning current and other interference. The standard threshold voltage is -2v / +2v. The threshold voltage is absolute or peak, when the voltage is switched at this scope, it is the sum of the dc and the peak ac voltage across the terminals of the device. This results in a very low , and safe, clamping voltage across the terminals. applications: 1. Decouple gradient control mats (grounding mats) from pipelines. 2. Over-voltage protection of equipment from ac faults, lightning, and switching transients (e.g. Insulated joints). 3. Decoupling dissimilar metals that must otherwise be ac bonded for safety. 4. Ac grounding and dc isolation of electrical equipment integral to a cathodically protected system. 5. Mitigation of induced ac voltage. capability: 1. Blocking voltage or threshold voltage; 2. Dc leakage current for a given blocking voltage; 3. Ac fault current rating; 4. Lightning surge current rating; 5. Steady-state ac current rating.

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Warning Tape is used for marking the direction and location of the pipeline which has the warning effect. When digging the pipeline location, dig tools will touch the warning tape first but not the pipeline body which can avoid any unnecessary loss and accidents. It has long performance life and widely used in petroleum, natural gas, coal gas pipeline construction. We have two types for your choice, one is with holes which will not affect the growth of crops, and the other one is with printing characters. Advantges: 1.It is inexpensive. 2.It has no operating costs. 3.It will not deteriorate while underground. 4.It is easy to install. 5.It dose not need any special handling or packaging during shipment.