1. For cooking oil, olive oil, vegetable oil, animal oil, essential oil, glycerin, sesame oil and other liquids, please choose stainless steel gear pump when conveying. Stainless steel gear inside the piston pump: the gear has high temperature resistance and long service life. Mechanical seal: corrosion resistance, no leakage, etc. Stainless steel plate: wear resistant, corrosion resistant, long service life. These configurations make the pump resistant to corrosion and do not contaminate the liquid when it is transported. 2. For beverage, fruit orange, vinegar, alkali, yogurt, grain oil, soy sauce and other liquids, zyb slag oil pump should be selected when transporting When the particles pass the gear, Being crushed will not cause damage to the gears. A pair of gears in the pump body divides the internal space into two parts. When the gears rotate to draw in the area, negative pressure is generated. Draw the liquid into the pump from the inlet to the outlet, forming a high pressure to discharge the liquid out of the pump body. So this pump can work continuously for a long time. 3. Honey, sesame paste, bean paste, syrup, pear paste, royal jelly and so on. NYP type high viscosity gear pump should be selected when conveying. NYP high viscosity gear pump pump in the pump body of the gear and meniscus closely occupy each side of the rotor, When the gear rotates, it will drive the rotor in the same direction. The gear has no wear, no pulsation and no noise. This pump has a transmission viscosity of up to 300,000 CST, smooth operation, wear-resistant, corrosion-resistant and long service life. Which gear pump to choose for food depends on the viscosity, flow, pressure, temperature and other characteristics of the liquid.

Advantages Compared with centrifugal pump with mechanical seal or packing seal, magnetic pump has the following advantages. 1. Stainless steel magnetic pump shaft from the dynamic seal into a closed static seal, completely avoiding the leakage of media. 2. Without independent lubrication and cooling water, energy consumption is reduced. 3. When overload, the internal and external magnetic rotor relative slippage, to the motor, pump protection. Magnetic pump is a kind of magnetic drive (magnetic coupling) to achieve non-contact torque transmission so that static seal instead of dynamic seal, so that the pump to achieve complete non-leakage. Because of the pump body, pump shaft, the magnetic rotor of sleeve completely closed, so as to thoroughly solve the “run, run, drip, leak problem, eliminates the oil refining chemical industry flammable, explosive, toxic and harmful medium by pump seal leakage of safe hidden trouble, effectively guarantee the staff’s physical and mental health and safety in production. Compared with centrifugal pumps with mechanical seals or packing seals, magnetic pumps have the following advantages: 1. Pump shaft from the dynamic seal into a closed static seal, completely avoiding the leakage of media. 2. Without independent lubrication and cooling water, energy consumption is reduced. 3. From coupling drive to synchronous drive, there is no contact and friction. Low power consumption, high efficiency, and damping to reduce the impact of motor vibration on pump and pump cavitation vibration on motor. 4. When overload, the internal and external magnetic rotor relative slippage, to the motor, pump protection. When the driven parts of the magnetic actuator run under overload or the rotor is stuck, the main and driven parts of the magnetic actuator will slip off automatically and protect the pump. At this point, the permanent magnet on the magnetic drive will generate vortex loss and magnetic loss under the action of the alternating magnetic field of the active rotor, causing the temperature of the permanent magnet to increase and the slip failure of the magnetic drive.

HAINA Stay focused on mono pump product innovation and development，To improve the quality of products,Improve the product after-sales service, we maintain close ties with the customers.Sincerity is our principle, positive forward, innovation spirit, after years of efforts, make HAINA product sales to the petroleum, chemical, electric power, papermaking, environmental protection, metallurgy, coal, food, pharmaceutical, drainage works and other industries. Haina pumps mono pump it’s a volume pump，The pump speed can be changed by means of coupling and pump connection, or belt, gear box, speed regulating motor, etc.Flow: 0.8-150m3/ h, pressure 0.4-1.2 MPa. Haina mono pump compare with other pumps advantage Structure and work characteristics；Compared with asphalt pump, centrifugal pump, vane pump and gear pump have the following advantages： mono pump can deliver high viscosity liquid，The flow is uniform, the pressure is stable, the low speed is more obvious. The flow rate is proportional to the speed of the pump, so it has good variable adjustment. mono pump can deliver different viscosity liquid， mono pump installation position can be tilted arbitrarily. mono pump small size, light weight, low noise, simple structure and convenient maintenance.haina mono pump Use non-toxic, tasteless rubber，Working temperature 120℃.

Gear wear maintenance: Gear wear and tear parts mainly tooth meshing of the working face and the gear involute, the plane.Mild wear, tooth surface grinding oil bill chan, two platforms and lapping repair the light on the tablet.Face serious wear and tear of the gear should be replaced when new gear, if only the ends of the gear surface wear, light on the surface grinding machine grinding. Axis wear maintenance: asphalt gear pump axis wear mainly because on both ends of the shaft and friction and wear between the supporting roller, the smaller the diameter of axle.If it is a mild wear, mooring Thai bond by a layer of hard chromium plating, to increase the shaft diameter size, the shaft.If worn axis, it should be 45 steel or 40 cr steel to manufacture, shaft blank after the coarse and fine car, bearing parts to heat treatment, hardness of HRC60-65, and then after grinding, make bearing fit parts surface roughness Ra is not more than 0.32 microns;Shaft roundness and cylindricity tolerance is 0.005 mm;Cooperate with gear parts according to the H7 / h6, surface roughness Ra should be no greater than 0.63 microns. Here I would like to suggest that the asphalt gear pump is often used with china hot oil pump. Pump with needle bearing repair replacement: In the pump parts after repair, needle roller bearings should be replaced.Requirements for needle is: all the size of the needle diameter error must not exceed 0.003 mm, length tolerance is 0.1 mm, should cooperate with axial clearance in O.O LMM around;Needle assembly according to quantity requirement with the bearing shell, needle between parallel arrangement.