大東工業 List of Products and Services

The "HP type/KH type" is a gear pump capable of high pressure and long continuous operation. It can be equipped with a combination of materials for corrosion and wear resistance, as well as jackets and built-in safety valves. There is a wide variety of shaft seals available, including gland packing type, oil seal type, mechanical seal type, and our original double bellows mechanical seal type. Additionally, we have numerous achievements with various oils, chemical liquids, solvents, paints, and high-viscosity liquids. 【Features】 <HP type HP-M type/KH type KH-M type> ■ Uses self-lubricating press metal ■ The liquid contact and sliding parts can be combined in terms of structure and materials to withstand various operating conditions ■ Can be driven either directly connected to the motor or via V-belt ■ Has a very wide range of applications as a transport pump even under harsh operating conditions *For more details, please refer to the PDF document or feel free to contact us.

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The "HSR-S type" is a specialized gear pump for kerosene and A heavy oil, improved with a two-stage oil seal system that has a bearing in the middle for the shaft seal of the HSR type gear pump. It can be used for a lift height of up to 60m, making it ideal for transferring fuel for central heating and for the spraying of low-pressure oil burners. It is also possible to use O-rings and oil seals made of Viton. 【Features】 ■ Two-stage oil seal system ■ Specialized pump for kerosene and A heavy oil ■ Usable lift height of up to 60m *For more details, please refer to the catalog or feel free to contact us.

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The "HSR type" is a high-performance general-purpose gear pump equipped with a safety valve, suitable for both V-belt drive and direct coupling drive. It is designed and manufactured to withstand harsh operating conditions, allowing for continuous operation, and can be used for forced lubrication of various equipment, hydraulic applications, and heavy oil spraying. Additionally, in low-pressure situations, it is also suitable for the circulation transport of various non-lubricating paints, water-soluble cutting oils, lacquers, and more. 【Features】 ■ Suitable for circulation transport in low-pressure situations ■ Built-in safety valve ■ High performance ■ Capable of continuous operation *For more details, please refer to the catalog or feel free to contact us.

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The "KB type" is a general-purpose gear pump driven by a V-belt and operated at low speeds. It can transport any non-corrosive liquid. It demonstrates its true value in handling high-viscosity liquids such as general oils, heavy fuel oil, varnish, paint, and molasses. 【Features】 ■ General-purpose gear pump ■ Capable of transporting any non-corrosive liquid ■ Suitable for high-viscosity liquids *For more details, please refer to the catalog or feel free to contact us.

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The "CSB type" is a series of gear pumps designed as a general-purpose all-stainless steel pump. It is specifically designed for low-speed operation (such as V-belt or geared motor drive) and achieves a compact, lightweight design with a large capacity. The structure is extremely simple, making disassembly and cleaning easy. 【Features】 ■ All stainless steel construction ■ Designed for low-speed operation ■ Compact ■ Lightweight ■ Easy disassembly and cleaning *For more details, please refer to the catalog or feel free to contact us.

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The "VSR type" is a gear pump designed for direct connection to a 4-pole motor for the transport of low-viscosity lubricating oil, streamlining the design while achieving weight reduction and compactness. The basic components are based on the KSR type, making maintenance easy and the operating noise very quiet. By adopting this product, significant cost reductions are possible in conjunction with the miniaturization of the motor. 【Features】 ■ Lightweight ■ Compact ■ Significant cost reduction possible ■ Easy maintenance ■ High quietness *For more details, please refer to the catalog or feel free to contact us.

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The "HPR type" is a gear pump designed and manufactured considering all conditions for high-pressure heavy oil injection pumps for medium and small boilers. It maintains sufficient strength and durability to withstand long hours of continuous operation, and is structured as simply as possible, fully fulfilling its role as the heart of the boiler. The HPR type gear pump can be used not only for heavy oil injection but also for low-pressure hydraulic applications and as a kerosene and A heavy oil injection pump. 【Features】 ■ For medium and small boilers ■ Capable of long hours of continuous operation ■ Functions as the heart of the boiler *For more details, please refer to the catalog or feel free to contact us.

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The "OH-MG type" is a gear pump based on the OH-G type gear pump, featuring a mechanical seal for the shaft seal. It is used when transporting fluids without lubrication, where the wetted parts must be made of the same material and leakage is absolutely not allowed, or when air contamination in the liquid is not permitted. Additionally, we also manufacture pumps with a jacketed casing. 【Features】 ■ Shaft seal with mechanical seal ■ External bearing type, versatile high-performance model ■ Capable of high-pressure transfer of non-lubricating liquids, as well as abrasive and corrosive liquids *For more details, please refer to the catalog or feel free to contact us.

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The "OH(B)-jG type and OH(B)-JjG type" are gear pumps based on the OH-G type, equipped with jackets that can be heated or cooled on the outer circumference of the stuffing box, making them suitable for transporting high-temperature liquids. To prevent the alteration of the liquid in the gland area and to cool the bearings, water cooling is used, while heating is employed to prevent the liquid from sticking in the gland. The OH-jG type and OH-JjG type have casings with jackets to allow for the transport of high melting point liquids in a dissolved state, and also feature jackets on the outer circumference of the stuffing box. 【Features】 ■ Optimal for transporting high-temperature liquids ■ Equipped with jackets for heating and cooling ■ Capable of transporting high melting point liquids in a dissolved state *For more details, please refer to the catalog or feel free to contact us.

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The "OH-G (OHB-G) type" is a gear pump designed and manufactured for the purpose of transporting liquids containing wear elements such as non-lubricating liquids and solids at high pressure. It can transport any type of fluid without being constrained by bearing material, allowing for the free selection of materials for the wetted parts, making it easy to produce pumps with high corrosion and wear resistance. It has a wide range of applications as a pump for various liquids that are difficult to handle with conventional gear pumps. 【Features】 ■ Basic model of high-performance type ■ Capable of transporting any fluid ■ Can withstand harsh operating conditions ■ Free selection of wetted part materials ■ Usable for a wide range of applications *For more details, please refer to the catalog or feel free to contact us.

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The seal-less gear pumps from Daito Industry are capable of handling a variety of suction conditions and specified flow rates. They can transfer fluids from low to high viscosity and offer precise metering, making flow control easy through rotational adjustments. Additionally, they can handle high-temperature fluids up to 180°C. We offer a lineup ranging from a minimum of approximately 0.1 L/min to a maximum of approximately 300 L/min. Please consult us for specifications involving smaller or larger volumes. 【Features】 ■ Capable of handling various suction conditions ■ Capable of accommodating diverse specified flow rates ■ Can be manufactured from a variety of metal materials ■ The pump suction side can achieve a suction lift of -9.5 mm ■ Suction conditions and pressure can reach up to 4 MPa *For more details, please refer to the catalog or feel free to contact us.

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● HSR-S Type <<3/8 to 1-1/2B>> This is a gear pump for kerosene, heavy oil A, and various lubricating oils, featuring a two-stage oil seal structure for the shaft seal. It is also possible to use O-rings and oil seals made of Viton. It can operate with either V-belt drive or direct coupling. ● HSR Type <<3/8 to 1-1/2B>> This is a gear pump for lubricating oil transfer with a gland packing type shaft seal. It has also been successfully used for various paints and other applications. Kerosene: up to 0.3 MPa Heavy oil A: up to 0.6 MPa Lubricating oil: up to 1.0 MPa

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● KB-type 1 to 6B The shaft seal is of the gland packing type. It is driven by a V-belt type or directly connected geared motor. Pressure up to 0.5 MPa. ● KB-S type 1 to 2½B The shaft seal is of the oil seal type. This is a smaller version of the KB type with an oil seal. It can transport low viscosity oil up to 0.3 MPa.

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● HPR-M Type <<3/8 to 2B>> The shaft seal is a single mechanical seal type with a built-in safety valve. It is optimal for transferring various oils such as kerosene, A to C heavy oil, fuel oil, and lubricating oil, and is a powerful compact gear pump capable of withstanding high pressure and prolonged continuous operation. Kerosene, A heavy oil - up to 1.5 MPa B, C heavy oil - up to 2.3 MPa Lubricating oil - up to 2.0 MPa

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If you are having trouble with liquid leaks, please feel free to consult us.

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● VSR-M Type <<1-8B>> The shaft seal is of the mechanical seal type. It is a standard gear pump directly connected to a 4P motor with a built-in safety valve and designed for large-capacity transfer. It has a proven track record with various types of oil and uses ball or roller bearings for the bearings. It can handle liquid viscosities up to 200 mPa·s. Pressure: up to 0.5 MPa (ball bearing) up to 0.8 MPa (roller bearing) ● VSR Type <<1-8B>> The shaft seal is of the gland packing type. Pressure: up to 0.5 MPa (ball bearing) up to 0.8 MPa (roller bearing) ● VSR-BSM Type <<1-8B>> The shaft seal is of the mechanical seal type. It is a gear pump designed for the large transfer of low-viscosity oils such as kerosene and light diesel. Pressure: up to 0.3 MPa

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6P motor direct connection gear pump

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● OH-MG Type <<1-8B>> The shaft seal is a single mechanical seal type. It is an external bearing universal high-performance gear pump. It is capable of high-pressure transfer of non-lubricating liquids, as well as abrasive and corrosive liquids. There are numerous achievements in transferring waste oil, waste liquids, slurry-containing liquids, chemical digestion raw liquids, water, coagulants, etc. ● OH-G Type <<3/4-8B>> The shaft seal is a gland packing type. ● OH-S2G Type <<1-8B>> The shaft seal is a Teflon oil seal type. This gear pump is equipped with a Teflon seal type for hardened liquid measures on the external bearing OH type. It has proven performance with resins and other materials.

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● CSB-S Type <<1/2 to 2 1/2B>> The shaft seal is an oil seal type, made of general-purpose all stainless steel. It is a transfer gear pump driven by a V-belt or directly connected to a geared motor. It has a proven track record with corrosive liquids such as acids and alkalis. The oil seal is available in both Viton and Teflon types. ~0.3 MPa ● CSB Type <<1/2 to 2 1/2B>> The shaft seal is a gland packing type. ~0.3 MPa

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● KR-S Type <<3/8 to 1B>> This is a gear pump for kerosene, heavy oil (A), and various lubricating oils, featuring a two-stage oil seal structure for the shaft seal. It is also possible to use O-rings and oil seals made of Viton. It is primarily driven by a V-belt. Pressure ~ 0.3 MPa ● KR Type <<1/4 to 1B>> This is a gear pump for transferring lubricating oil with a gland packing type shaft seal. It has also been successfully used for various paints and similar applications. Pressure ~ 0.3 MPa

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