API 16A Annular blowout preventer is manipulated by hydraulic control system. When it is shut off, high pressure oil flows into piston underside closed cavity through the oil port in central shell, to push piston upwards, and the conical surface of piston squeezes rubber core. Due to the restrictions of head cover, rubber core can’t go upwards but is pushed towards the center of wellhead until it encloses drilling tool or enclose wellhead totally to shut the well. When well needs to be opened, manipulate the reversing valve of hydraulic control system, so that high pressure oil should flow into the open cavity on top of piston through the oil mouth on shell, to push piston downwards and decompress closed cavity, in which case, the extrusion force on the conical surface of rubber core is removed, and the rubber core is reset gradually with the action of its own elastic force to open wellhead.
API 16A Annular blowout preventer is manipulated by hydraulic control system. When it is shut off, high pressure oil flows into piston underside closed cavity through the oil port in central shell, to push piston upwards, and the conical surface of piston squeezes rubber core. Due to the restrictions of head cover, rubber core can’t go upwards but is pushed towards the center of wellhead until it encloses drilling tool or enclose wellhead totally to shut the well. When well needs to be opened, manipulate the reversing valve of hydraulic control system, so that high pressure oil should flow into the open cavity on top of piston through the oil mouth on shell, to push piston downwards and decompress closed cavity, in which case, the extrusion force on the conical surface of rubber core is removed, and the rubber core is reset gradually with the action of its own elastic force to open wellhead.
Plastic Tool
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Beekeeping tools Bee Brush, double rows horse hair Basic Information Place of Origin: China Brand Name: bee brush Certification: ISO Model Number: SS-BS-05 Minimum Order Quantity: 200 Piece/Pieces bee brush for Bee supplies Price: US $0.9 - 2.5 / Piece Packaging Details: bee smoker for Bee supplies 10pcs/carton Delivery Time: 7business days after payment received Payment Terms: T/T, L/C, WESTERN UNION Supply Ability: 50000 Piece/Pieces per Month bee smoker for Bee supplies
Multifunction Beekeeping Hive Tool , J Hook Hive Tool ISO Approved Basic Information Place of Origin: china Brand Name: super-sweet Certification: ISO Model Number: hivetools Minimum Order Quantity: 100 Packaging Details: CTN:40*30*30cm 50PCS/CTN NW:13kg GW:14g Delivery Time: 5 WORKING DAYS Payment Terms: Western Union, MoneyGram, T/T Supply Ability: 100000PCS
Professional Honey Bee Tools Nuc Box Metal Entrance / Plastic Beehive Entrance Basic Information Place of Origin: China Brand Name: Super-sweet Minimum Order Quantity: 1000 Packaging Details: beehive disc entrance for beehive tools 1. Standard Package. 2. at your request Delivery Time: 5 working days Payment Terms: L/C, D/P, T/T, Western Union, MoneyGram Supply Ability: 100000 Piece/Pieces per Month Product Description Bee Hive Nuc Box Metal Entrance Disc Enter For Bee Plastic Entrance Gates Products Name: plastic beehive entrance Material : metal Weight:17g/pc Diameter:7cm Color: green,white Company Information 1. We are the professional manufacturer of beekeeping equipment tools specialized in designing, researching, developing molding and producing, selling and exporting various beekeeping supply. We have a complete set of mold development and production equipment, and provide various and new beekeeping devices for all beekeepers. 2. Other series products: Beekeeping Equipment 1) Beeswax comb foundation roller (manual embossing roller) & (electric embossing roller) 2) Beeswax comb foundation roller (automatic edge cutting) 3) Beeswax comb foundation roller (manual plain roller) & (electric plain roller) 4) Honey extractor series 5) Basic beekeeping tools series 6) Queen rearing series 7) Beekeeping protective clothing series 8) Bee feeder and sprayer 9) Beehive and beeswax foundation
