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In the structure, it is divided into annular blowout preventer with spherical plastic core, annular blowout preventer with cone-shaped plastic core, and blowout preventer with tube-shaped plastic core. Annular BOP top cap and housing are connected by bolts or claw blocks.
Blowout preventer with spherical plastic core and dust-proof ring.
Performance characteristics: reasonable structure, easy operation, long life of plastic core, adapt to a wide range, capable to seal pipe string with nominal paths from 0-DN in ans shapes, better performance by combining with ran blowout preventer in the use.
Working Principle:
When wells must be sealed in case of kicks high pressure (10.5Mpa) oil from control systems enters into close-cavity under piston from housing oil outlet, to promote plastic core moving upward along ball surface, so that bearing tendons move closer to each other to moce the rubber between them to the center of wellhead so as to seal drilling tools or fully seal wellhead. In opening , hydr aulic pressure oul enters into open-cavity above piston from housing oul inlet, to push piston moving downwards , so that plastic will reset with its own elasticity, wellhead will be open.
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Botanical Name: Piper nigrum Plant Family: Piperaceae Country of Origin: India Plant Part: White Peppercorns Growth Method: Wild Harvest Extraction Method: Steam Distillation Color: Clear Consistency: Thin Strength of Aroma: Medium Pepper is a perennial vine of the Piperaceae family indigenous to the Malbar coast of India. It is now cultivated in most tropical parts of the world. Pepper bears clusters of small flowers and small spherical fruits that turn red when they ripen. The berry-like fruits eventually become the peppercorns, and each one bears a single seed. The hot spice of White Pepper is made from its berries. It is the fully mature fruits from which the soft, fleshy outer layers had been ground off before drying. The berries of the pepper plant are called peppercorns and these plants are native to southern Asia. This plant was the main spice the European explorers were looking for when they discovered the New World. It still accounts for one fourth of the spice trade in the world. Did you know that white and black pepper come from the same plant? The white variety is allowed to fully ripen on the vine, as opposed to the black peppercorns, which is why it costs a bit more. The skins are peeled off and the inside of the peppercorn is white. White peppercorns have an earthy flavor whereas black peppercorns simply give heat to a dish. The white ones are popular in Mexican, Indian, and Asian dishes, perhaps because a lot of these recipes are spicy and earthy already and the white pepper complements the overall flavor of the dish. If you want to use white pepper, it is best to buy whole peppercorns because the flavor is longer lasting. Peppercorns start to lose their potency when you grind them, which is why freshly ground pepper is usually recommended.
1 108-78-1 Melamine 2 37640-57-6 Melamine cyanurate 3 63428-83-1 Polyamide 4 106-50-3 1,4-phenylenediamine 5 9002-89-5 Poly(vinyl alcohol) 6 105-60-2 �µ-caprolactam 7 10578-34-4 Stearyl benzoate 8 108-31-6 Maleic anhydride 9 108-05-4 Vinyl acetate 10 26264-06-2 Calcium dodecylbenzene sulfonate 11 111-69-3 Adiponitrile 12 924-42-5 N-Methylolacrylamide 13 100-20-9 Terephthaloyl Chloride 14 99-63-8 Isophthaloyl Chloride 15 1338-02-9 Copper naphthenate 16 6153-56-6 Oxalic acid dihydrate 17 79-10-7 Acrylic acid 18 75-01-4 Chloroethene 19 25190-06-1 Poly(butylene oxide) macromolecule 20 77-99-6 Trimethylol propane
1 27176-87-0 Dodecylbenzenesulphonic acid 2 151-21-3 Sodium dodecyl sulfate 3 9016-45-9 Nonylphenol Ethoxylate 4 63449-41-2 Benzalkonium Chloride 5 139-07-1 Dodecyldimethylbenzylammonium chloride 6 9004-82-4 AES 7 6863-42-9 Coconut oil acid diethanolamine 8 683-10-3 Lauryl betaine 9 25155-30-0 Sodium dodecyl benzene sulfonate 10 107-43-7 Betaine 11 112-00-5 Dodecyltrimethylammonium chloride 12 25496-72-4 Glyceryl monooleate 13 1120-02-1 Octadecy trimethyl ammonium bromide 14 9005-64-5 Polysorbate 20 15 9005-67-8 Tween 60 16 68213-23-0 Fatty alcohol polyglycol ether 17 68585-34-2 Sodium lauryl ether sulfate 18 9004-95-9 Polyethylene Glycol Monocetyl Ether 19 9004-98-2 Polyethylene glycol monooleyl ether 20 9003-11-6 Polyethylene-polypropylene glycol
1 101-68-8 4,4'-Diphenylmethane diisocyanate 2 9016-00-6 Poly(dimethylsiloxane) 3 26471-62-5 Tolylene diisocyanate 4 100-42-5 Styrene 5 141-32-2 Butyl acrylate 6 107-13-1 Acrylonitrile 7 106-99-0 Buta-1,3-diene 8 75-38-7 1,1-difluoroethylene 9 9-38-9 Chlorotrifluoroethylene 10 111-44-4 2,2'-Dichlorodiethyl ether 11 1187-93-5 Trifluoromethyl trifluorovinyl ether 12 21645-51-2 Aluminum hydroxide 13 116-14-3 Tetrafluoroethene 14 116-15-4 Hexafluoropropylene 15 126-99-8 Chloroprene 16 103-11-7 2-Ethylhexyl acrylate 17 140-88-5 Ethyl acrylate 18 78-79-5 Isoprene 19 96-33-3 Methyl acrylate 20 1300-21-6 Dichloroethane
Tomato : Tomato fruit nutrient-rich, with a special flavor. Can be raw food, cooking, processed into tomato sauce, juice or whole fruit cans. The edible parts of tomato are juicy berries. It is a lot of varieties, according to the shape of the fruit can be divided into round, oblong, oblong, pointed round; according to the color of the peel, there are red, pink, orange and yellow The Red tomatoes, fruit color red, generally slightly flat spherical, navel small, flesh, taste sand sweet, juicy and more refreshing, good flavor, raw food, cooked food can also be processed into tomato sauce, tomato juice; pink tomato, fruit powder Red, nearly round spherical, navel small, fruit surface smooth, taste sweet and sour moderate, better quality, yellow tomatoes, fruit orange fruit large, spherical, flesh thick, fleshy and surface and sand, raw food is light, should be cooked food.
Carrot : Carrot is a kind of radish, as,cruciferous carrot, also known as,big carrot, northeast carrot one or two year old herbs, root meat, spherical, root bark red, root meat white. Originated in China, all around cultivation, the Northeast is the main producing areas of large carrots, due to climate and variety factors such as the formation of its high nutritional value and medicinal value. Carrot micro-temperature, into the lungs, stomach two, with heat, detoxification, dampness, stasis, stomach digestion, Huatanzhike, Shun gas, convenience, Shengjinzhike, fill in the five internal organs and other functions. A wide variety of radishes, raw to spicy less as well.
Micro Silica Sand: Micro silica also known as fume, is an amorphous (non-crystalline) polymorph of silicon dioxide, silica. It is an ultrafine powder collected as a by-product of the silicon and ferrosilicon alloy production and consists of spherical particles with an average particle diameter of 150 mm. The main field of application is as pozzolanic for high performance concrete because of its extreme fineness and high silica. Applications : Silica is added to Portland cement concrete to improve its properties, in particular its compressive strength, bond strength, and abrasion resistance. These improvements stem from both the mechanical improvements resulting from addition of a very fine powder to the cement paste mix as well as from the pozzolanic reactions between the silica fume and free calcium hydroxide in the paste. Advantages : Addition of silica also reduces the permeability of concrete to chloride ions, which protects the reinforcing steel of concrete from corrosion, especially in chloride-rich environments such as coastal regions and those of humid continental roadways and runways (because of the use of deicing salts) and saltwater bridges.