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 , hydraulic 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.
ModelDimensions (mm)Weight (kg)Working temperatureRange of seal well
Supplier: Cosmetics bottle, cosmetics jar, makeup, essential oil, lipstick care bottle, lip gloss bottle, compact case, loose powder pot, spatulas, dosage, mascara bottle, perfume bottle, eyeliner bottle
Services: Provides expert product design / manufacture negotiation / production schedule/ quality control / logistics and shipping.
Supplier: Glassware, glass tableware, kitchenware, press glass cup, blowing glass cup, glass mug, astray, glass jar, storage bottles, colour glass, bottles, goblet, miscellaneous and bowl, borosilicate
Services: Clearing agent, transportation, shipping.
Supplier: Tempered glass, laminated glass, mirror, acid etched glass, fritted glass, float glass, reflective glass, low e glass, patterned glass, glass bottle, glass jar, glassware, glass tube, glass cup
Supplier: Cotton yarn, cotton and poly cotton fabrics, recycled yarn , grs certified , shoddy , wool waste , bed sheets, towels, kitchen towels, knitted bed sheets , jersey sheets, woven bedding, spinning waste, rice, sugar, cement, clinker, frozen chicken, frozen beef, edible oils, palm oil, wheat, soybean, corn, barley, bitumen, copper cathode, urea, aluminum ingot, sulfur, coal, ores, dap, pet coke, fertilizers, npk, base oil, petroleum products , mattress cover , pillow , micro fibre bed sheets , quilt , pink salt , himalayan salt
Services: Sourcing
